TW201619273A - Water-soluble polyvinyl alcohol blend film, related methods, and related articles - Google Patents

Abstract

Disclosed herein are water-soluble films including a polyvinyl alcohol (PVOH) resin blend and optionally one or more additional components such as plasticizers, fillers, surfactants, and other additives. Also disclosed herein are articles including the water-soluble film and containing a composition such as a household care composition. The PVOH resin blend includes a PVOH copolymer including one or more types of anionic monomer units such as a PVOH terpolymer and a PVOH polymer such as a partially or completely hydrolyzed PVOH homopolymer. When the PVOH copolymer and PVOH polymer are blended in particular proportions and/or selected with regard to various criteria related to the 4% solution viscosity of one or both of the PVOH polymer(s) and PVOH copolymer(s), the resulting water-soluble film formed from the PVOH resin blend exhibits substantially improved aqueous dissolution properties.

Description

Water-soluble polyvinyl alcohol blend film, related method and related articles

The present invention is generally directed to water soluble films comprising a blend of polyvinyl alcohol (PVOH) resins and useful in contact with liquids, solids or combinations thereof, such as household care compositions. The invention further relates to a method of making the film and articles such as packets and sachets made from the film, optionally filled with an active component such as a cleaning agent to produce a measured dose pouch. More particularly, the present invention relates to such films having one or more benefits, such as improved solubility characteristics for end use and/or resistance to changes in solubility characteristics upon contact with chemicals, along with suitable processability, Packets and pouches.

Water-soluble polymer films are commonly used to package materials that simplify the dispersion, casting, dissolution, and formulation of the material to be delivered. For example, packets made from water soluble films are commonly used to package home care compositions, such as pouches containing laundry or dish cleaners. The consumer can add the pouch directly to a mixing container, such as a bucket, sink or washing machine. Advantageously, this provides precise dosing while eliminating the need for the consumer to measure the composition. The pouch can also reduce the mess associated with dispensing a similar composition from a container, such as pouring a liquid laundry detergent from a bottle. The pouch also isolates the composition therein from the hand that contacts the user. In summary, soluble polymer film packages containing pre-tested agents provide convenience for consumer use in a variety of applications.

Some of the water soluble polymer films used to make the package will not completely dissolve during a wash cycle, leaving a film residue on the articles within the wash. Such problems may be especially when the pouch is used under stress washing conditions, such as a pouch for cold water (eg, water as low as 5 ° C and/or at most 10 ° C or 15 ° C), a short wash cycle, and/or a low Produced when a water wash cycle (eg, from about 3 liters to about 20 liters of wash liquid) is produced. It is worth noting that environmental issues and energy costs are driving consumer demand for colder wash waters and shorter wash cycles.

There is still a need for chemical and physical compatibility with good water solubility (e.g., cold water solubility), chemical resistance, other compositions in contact with laundry actives or films or sachets formed therefrom, and the need for good processability. Water soluble films and related articles, such as packets, of desirable characteristics of mechanical properties.

The present invention relates to a water-soluble film comprising a polyvinyl alcohol (PVOH) resin blend and optionally one or more additional components, such as plasticizers, fillers, surfactants, and other additives (eg, It can be used to form articles, such as pouches or packets, for example, containing a home care composition that is close thereto. The PVOH resin blend comprises a PVOH copolymer (e.g., a PVOH terpolymer) comprising one or more types of anionic monomer units and a PVOH polymer (e.g., a partially or fully hydrolyzed PVOH homopolymer). Formed from a PVOH resin blend when the PVOH copolymer and polymer are blended in a particular ratio and/or selected for various criteria associated with a 4% solution viscosity of one or both of the PVOH (co)polymers The resulting water soluble film exhibits (i) a similar film formed from a single PVOH anionic copolymer and (ii) a similarity formed from a PVOH copolymer and a polymer blend, in addition to the selected ratio and/or solution viscosity criteria. The beneficial aqueous solubility characteristics of both films (as appropriate combined with beneficial tensile strength characteristics and/or tensile modulus properties). Optionally, the resulting water soluble film formed from the PVOH resin blend additionally exhibits a similar appearance to that formed from a PVOH polymer blend without anionic monomer units (eg, a blend of partially or fully hydrolyzed PVOH homopolymer). The beneficial aqueous solubility characteristics of the film (as appropriate combined with beneficial tensile strength characteristics and/or tensile modulus characteristics). The reduction or elimination of water-soluble residues is particularly desirable in various washing operations, such as when a pouch formed from a water soluble film and containing a cleaning composition (eg, a laundry or dishwashing cleaning composition) is used to clean one or more items ( For example, clothing or tableware, it is necessary for the cleaning article to be free of polymer film residues.

One aspect of the invention relates to a water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise And the first PVOH copolymer is present in an amount ranging from about 30% to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film.

Another aspect of the invention relates to a water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise The anionic monomer unit is present in the film in an amount ranging from about 1.0 mole percent to about 4.2 mole percent of the total PVOH polymer and PVOH copolymer in the film.

Another aspect of the invention relates to a water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less; wherein: the first PVOH copolymer is about 30% by weight of the total PVOH polymer and PVOH copolymer in the film An amount in the range of up to about 90% by weight is present.

Another aspect of the invention relates to a water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less than 20 centipoise; wherein: the anionic monomer unit is about 1.0 mole % of the total PVOH polymer and PVOH copolymer in the film An amount in the range of up to about 4.2 mole % is present in the film.

Another aspect of the invention relates to a water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit; and a predominantly vinyl alcohol a second PVOH polymer composed of a monomer unit and optionally a vinyl acetate monomer unit; wherein: the first PVOH copolymer is from about 30% by weight to about 70% of the total PVOH polymer and PVOH copolymer in the film An amount in the range of % by weight is present.

Another aspect of the invention is directed to an article comprising a water soluble film and a home care composition adjacent to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and an acetic acid mainly composed of a vinyl alcohol monomer unit and optionally a second PVOH polymer composed of a vinyl ester monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute of the first PVOH copolymer and the second PVOH polymer Viscosity difference | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise, and the first PVOH copolymer is in the range of from about 30% by weight to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film The amount inside exists.

Another aspect of the invention is directed to an article comprising a water soluble film and a home care composition adjacent to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and an acetic acid mainly composed of a vinyl alcohol monomer unit and optionally a second PVOH polymer composed of a vinyl ester monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute of the first PVOH copolymer and the second PVOH polymer Viscosity difference | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise, and the anionic monomer unit is from about 1.0 mol% to about 4.2 mol% of the total PVOH polymer and PVOH copolymer in the film. Amounts within the range are present in the film.

Another aspect of the invention is directed to an article comprising a water soluble film and a home care composition adjacent to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and an acetic acid mainly composed of a vinyl alcohol monomer unit and optionally a second PVOH polymer composed of a vinyl ester monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less than 20 centipoise; wherein: the first PVOH The copolymer is present in an amount ranging from about 30% to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film.

Another aspect of the invention is directed to an article comprising a water soluble film and a home care composition adjacent to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and an acetic acid mainly composed of a vinyl alcohol monomer unit and optionally a second PVOH polymer composed of a vinyl ester monomer unit, the second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less; wherein: an anionic monomer The unit is present in the film in an amount ranging from about 1.2 mole percent to about 4.2 mole percent of the total PVOH polymer and PVOH copolymer in the film.

Another aspect of the invention is directed to an article comprising a water soluble film and a home care composition adjacent to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit; wherein the first PVOH copolymer is in the film The total PVOH polymer and PVOH copolymer are present in an amount ranging from about 30% to about 70% by weight.

Another aspect of the invention pertains to an article comprising: in the form of a pouch defining a volume of the inner pouch (e.g., further comprising a composition, such as a home care composition, contained in the inner pouch volume), according to various A water soluble film of any of the disclosed embodiments.

In a particular refinement of various embodiments, the anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, alkali metal salts thereof, and combinations thereof. In another refinement of various embodiments, the anionic monomer is selected from the group consisting of: maleic acid monomethyl ester, alkali metal salts thereof, and combinations thereof. In another refinement of various embodiments, the anionic monomer units are present in the first PVOH copolymer in an amount ranging from about 2 mole percent to about 10 mole percent. In another refinement of various embodiments, the viscosity difference (μ ₂ -μ ₁ ) of the first PVOH copolymer to the second PVOH polymer ranges from about 0 centipoise to about 10 centipoise (eg, from about 0 centipoise to about 5 Within the range of centipoise). In another refinement of various embodiments, the first viscosity μ _{1 is} in the range of from about 4 centipoise to about 24 centipoise (eg, from about 8 centipoise to about 16 centipoise). In another refinement of various embodiments, the second viscosity [mu] _{2 is} in the range of from about 4 centipoise to about 24 centipoise (e.g., from about 8 centipoise to about 16 centipoise). In another refinement of various embodiments, the water soluble film has a thickness of about 45 wt% or less than 45 wt% (eg, about 10 wt% or 20 wt% to about 40 wt%, or as measured by a dissolution chamber test) 45% by weight of residual value. In another refinement of various embodiments, the second PVOH polymer is present in an amount ranging from about 10% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film (eg, wherein the first PVOH copolymer) It is present in an amount ranging from about 30% by weight to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film).

Another aspect of the invention is directed to a method of forming an article as described herein, wherein the method comprises the steps of: providing a water soluble film, wherein the film defines an internal pouch container volume; using a composition (eg, a family The care composition) fills the container volume; and seals the film to form a sealed compartment, wherein the sealed compartment contains the composition.

Another aspect of the invention is directed to a method of processing a substrate, wherein the method includes the step of contacting a substrate with an article as described herein.

For the compositions and methods described herein, features including, but not limited to, components, ranges of compositions, substitutions, conditions, and conditions as appropriate are contemplated to be selected from the description herein. Various aspects, embodiments, and examples.

Other aspects and advantages will be apparent to those skilled in the art from the The present invention is intended to be illustrative, and is not intended to limit the invention to the specific embodiments described herein.

The following detailed description of various disclosed methods, processes, compositions, and articles relates to the accompanying drawings in which: FIG. 1 is a water-soluble pouch item for aqueous delivery of a delayed release capsule in combination with another composition in accordance with the present invention. Side cross-sectional view; FIG. 2 is a diagram illustrating dissolution chamber residual (% by weight) relative to anionic comonomer content (% by mole) of a water-soluble film comprising a single PVOH (co)polymer resin; FIG. 3 is an illustration Diagram of dissolution chamber residual (% by weight) relative to anionic comonomer content (% by mole) of a water-soluble membrane comprising a PVOH resin blend containing PVOH copolymer and PVOH homopolymer; and Figure 4 is an illustration A graphical representation of the dissolution chamber residual (% by weight) relative to the anionic comonomer content (% by mole) of a water soluble film comprising a PVOH resin blend comprising a PVOH copolymer and a PVOH homopolymer.

Disclosed herein are water soluble films comprising a blend of polyvinyl alcohol polymers and articles formed or otherwise comprising the film, such as a delivery pouch, wherein the article or pouch may further comprise a home care composition .

Some water soluble polymeric films used in the manufacture of articles, such as packets (i.e., which may contain a primary care composition), will not completely dissolve during normal use, such as during a laundry cycle of a package containing a laundry-related composition. In water (for example, a film residue is left on the article in the wash).

PVOH-based water soluble polymer films can undergo variations in soluble characteristics. It is known to those skilled in the art that the acetate groups in the co-poly(vinyl acetate vinyl alcohol) polymer can be hydrolyzed by acidic or basic hydrolysis. As the degree of hydrolysis increases, the polymer composition made from the PVOH homopolymer resin will have increased mechanical strength, but with reduced solubility at lower temperatures (eg, requiring hot water temperature to completely dissolve). Thus, exposure of the PVOH homopolymer resin to an alkaline environment (eg, produced by a laundry bleaching additive) can convert the resin from slow and complete dissolution of the resin in a given aqueous environment (eg, a cold water medium) to slow and/or Or a resin that is not completely dissolved in an aqueous environment, potentially resulting in an undissolved polymer residue at the end of a wash cycle. This is an inherent weakness in the application of films based solely on vinyl acetate/alcohol copolymers represented by commercial PVOH homopolymer resins.

A PVOH copolymer resin having pendant carboxyl groups, such as a vinyl alcohol/hydrolyzed methyl methacrylate sodium salt resin, can form a lactone ring between adjacent pendant carboxyl groups and an alcohol group, thereby reducing the water solubility of the PVOH copolymer resin. In the presence of a strong base such as a laundry bleaching additive, the lactone ring can be opened over a period of several weeks under relatively warm (ambient) and high humidity conditions (eg, via a lactone ring opening reaction to form an increased water solubility). The corresponding side is attached to the carboxyl group and the alcohol group). Thus, contrary to the effects observed in the case of PVOH homopolymer membranes, it is believed that such PVOH copolymer membranes may become more soluble due to chemical interactions between the membrane and the alkaline composition inside the pouch during storage. Therefore, as it ages, the package can become more and more easy during the hot wash cycle (nominally 40 ° C) Premature dissolution, and may in turn reduce the efficacy of certain laundry actives due to the presence of bleach and the resulting pH effects.

The present invention comprises a water soluble film comprising a polyvinyl alcohol (PVOH) resin blend and optionally one or more other components, such as plasticizers, fillers, surfactants, and other additives, as described below Described in more detail. The invention further comprises a water soluble film, such as an article or package containing a home care composition. The PVOH resin blend comprises a first PVOH resin which is a PVOH copolymer ("first PVOH copolymer") comprising one or more types of anionic monomer units (eg PVOH ternary (or higher) polymerization) And a second PVOH resin which is a PVOH polymer ("second PVOH polymer") comprising a vinyl alcohol monomer unit and, where appropriate, a vinyl acetate monomer unit (for example, complete hydrolysis) Partially hydrolyzed PVOH homopolymer of polyvinyl alcohol or poly(vinyl alcohol-co-vinyl acetate). In some aspects, the PVOH resin blend comprises only the first PVOH copolymer and the second PVOH polymer ( For example, a binary blend of two polymers.) Alternatively or additionally, the PVOH resin blend, the water soluble film, or both may be characterized as being free or substantially free of other polymers (eg, other generally water soluble polymerizations) Or other PVOH-based specific polymers or both. In other aspects, the water soluble film may comprise one or more other water soluble polymers. For example, the PVOH resin blend may comprise one (third) PVOH polymer, a fourth PVOH polymer, a fifth PVOH polymer, etc. (for example One or more other PVOH homopolymers or PVOH copolymers with or without anionic monomer units. For example, the water soluble film may comprise, in addition to a PVOH polymer (eg, with or without anionic monomer units) At least a third (or fourth, fifth, etc.) water soluble polymer other than the PVOH homopolymer or the PVOH copolymer.

The PVOH copolymer may be one comprising a vinyl alcohol monomer unit, a vinyl acetate monomer unit (ie, when not fully hydrolyzed), and a single type of anionic monomer unit (eg, wherein a single type of monomer unit may comprise an anionic monomer) A PVOH terpolymer of the equivalent acid form, the salt form, and optionally the ester form of the unit. In some aspects, the PVOH copolymer can comprise two or more than two types of anionic monomer units. Typical classes of anionic monomer units useful in PVOH copolymers include vinyl polymer units corresponding to monocarboxylic vinyl monomers, esters and anhydrides thereof, dicarboxylic acid monomers having a polymerizable double bond, esters thereof, and An acid anhydride, a vinyl sulfonic acid monomer, and an alkali metal salt of any of the foregoing. Examples of suitable anionic monomer units include vinyl polymer units corresponding to vinyl anionic monomers, including vinyl acetic acid, maleic acid, maleic acid monoalkyl ester, maleic acid dialkyl ester , maleic acid monomethyl ester, dimethyl maleate, maleic anhydride, fumaric acid, fumaric acid monoalkyl ester, fumaric acid dialkyl ester, anti Monomethyl methacrylate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, vinyl sulfonic acid, Allylsulfonic acid, ethylenesulfonic acid, 2-acrylamido-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methylpropenylamine-2 - methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of the above (for example, a sodium salt, a potassium salt or another alkali metal salt), an ester of each of the above (for example, a methyl ester, an ethyl ester or Other C ₁ -C ₄ or C ₆ alkyl esters) and combinations thereof (eg, various types of anionic monomers or equivalent forms of the same anionic monomer). In one aspect, the anionic monomer can be one or more acrylamidomethylpropanesulfonic acid (eg 2-propenylamino-1-methylpropanesulfonic acid, 2-acrylamido-2-yl-2- Alkylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid), an alkali metal salt thereof (for example, a sodium salt), and a combination thereof. In one aspect, the anionic monomer can be one or more of monomethyl maleate, an alkali metal salt thereof (eg, a sodium salt), and combinations thereof.

One or more of the PVOH copolymers (eg, the first PVOH copolymer) The incorporation content of the ionic monomer unit is not particularly limited. In some aspects, the one or more anionic monomer units are from about 2 mole% to about 10 mole% or from about 3 mole% to about 5 mole% (eg, in various embodiments, at least 2.0 mole%) , 2.5 mole %, 3.0 mole %, 3.5 mole % or 4.0 mole % and / or up to about 3.0 mole %, 4.0 mole %, 4.5 mole %, 5.0 mole %, 6.0 mole %, The amount in the range of 8.0 mol% or 10 mol%) is present alone or in combination in the first PVOH copolymer. For example, one or more anionic monomer units can be from about 5 mole percent to about 10 mole percent (eg, in various embodiments, at least 5.0 mole percent or 6.0 mole percent and/or up to about 7.0 mole percent The amount in the range of 8.0 mol% or 10 mol% is present alone or in combination in the first PVOH copolymer. Alternatively or additionally, the one or more anionic monomer units may be from about 3 mole % to about 4.2 mole % of the total PVOH polymer and copolymer in the film (eg, in various embodiments, at least 3.0 mole % or 3.5 moles) Amounts in the range of % and/or up to about 3.7 mole %, 4.0 mole % or 4.2 mole % are co-present in the water soluble film. In another aspect, one or more anionic monomer units in the first PVOH polymer can coexist in an amount ranging from about 1 mole % to about 3 mole % of the total PVOH polymer and copolymer in the film. In water soluble film. For example, an anionic PVOH copolymer can be blended with a PVOH polymer (eg, a blend of about 40%/60% to 60%/40% (w/w)) to dissolve the chamber with anionic monomer content. The chamber residual curve approaches near zero to achieve an average blend anionic monomer unit content ranging from about 3 mole percent to about 4.2 mole percent. In one embodiment, the first anionic monomer can be present in an amount of less than about 3 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The water soluble film may contain at least about 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85% or 90% and/or up to about 60% by weight 70% by weight, 80% by weight, 90% by weight, 95% by weight or 99% by weight PVOH resin blend. In one aspect, the first PVOH copolymer is from about 30% to about 90% by weight (or about 40% by weight of the total PVOH polymer and PVOH copolymer (ie, relative to the weight of the PVOH resin blend) in the film. An amount ranging from % to about 60% by weight, from about 40% by weight to about 70% by weight, from about 30% by weight to about 70% by weight) is present in the water-soluble film. For example, the first PVOH copolymer can be at least 30%, 40%, 45%, 50%, 55%, 60%, or 65% by weight of the total PVOH polymer and PVOH copolymer in the film. And/or present in an amount of up to about 55%, 60%, 65%, 70%, 75%, 80%, 85% or 90% by weight. In another aspect, the aforementioned concentration of the first PVOH copolymer can be or otherwise relative to the total water soluble polymer (PVOH or other) content of the film. In one aspect, the second PVOH polymer is from about 10% to about 70% by weight (or about 30% by weight of the total PVOH polymer and PVOH copolymer (ie, relative to the weight of the PVOH resin blend) in the film. The amount is present in an amount ranging from about 60% by weight, from about 40% by weight to about 60% by weight, from about 30% by weight to about 70% by weight. For example, the second PVOH polymer can be at least 10%, 20%, 30%, or 40% by weight and/or up to about 40%, 50% by weight of the total PVOH polymer and PVOH copolymer in the film. An amount of 60% by weight or 70% by weight is present. In another aspect, the aforementioned concentration of the second PVOH polymer can be or otherwise relative to the total water soluble polymer (PVOH or other) content of the film.

Alternatively or in addition to the relative amounts of polymeric resin (PVOH or others), the water soluble film can be characterized by the molar content of the anionic monomer units in the film, specifically relative to its polymeric resin content. In one aspect, the one or more anionic monomer units are from about 1.0 mole percent to about 4.2 mole percent (or from about 1 mole percent to about 3.4 mole percent of the total PVOH polymer and PVOH copolymer in the film) The amount, or from about 1.4 mole % to about 2.6 mole %, is present alone or in combination in the film. For example, one or more anionic monomer units can be at least 1.0 mole %, 1.2 mole %, 1.4 mole %, 1.6 mole %, 1.8 mole %, 2.0 mole %, 2.2 mole %, 2.5 moles Ear % or 3.0 mole % and / or up to about 2.5 mole %, 3.0 mole %, 3.4 mole %, 3.6 mole %, 3.8 mole %, 4.0 mole % or 4.2 mole % alone or Coexist in the membrane. The anionic monomer unit content can be expressed or otherwise expressed relative to the total water soluble polymer (PVOH or other) content in the film.

As described in more detail below, the PVOH polymer and PVOH copolymer resin can be characterized with respect to their 4% solution viscosity values at 20 ° C in water (i.e., in the form of values generally associated with the molecular weight of the resin). For reference, the first PVOH copolymer is expressed as having a 4% solution viscosity (μ ₁ ) at a first 20 ° C, and the second PVOH polymer is expressed as having a 4% solution viscosity at a second 20 ° C (μ _{2 )} ). In one aspect of the invention, the absolute viscosity difference of the first PVOH copolymer and the second PVOH polymer in the PVOH resin blend is |μ ₂ -μ ₁ | at 0 centipoise to about 10 centipoise (eg, at most Within the range of about 1 centipoise, 2 centipoise, 5 centipoise or 10 centipoise; about 0 centipoise. In another aspect of the invention, the second PVOH polymer can have about 20 centipoise or less than 20 centipoise (eg, at least about 4 centipoise, 8 centipoise, 10 centipoise or 12 centipoise and/or up to about 4% solution viscosity (μ ₂ ) at a second 20 ° C of 12 centipoise, 16 centipoise or 20 centipoise. In one or both of the foregoing aspects, the difference in viscosity (μ ₂ -μ ₁ ) between the first PVOH copolymer and the second PVOH polymer may range from about 0 centipoise to about 10 centipoise (eg, at least about 0) a centipoise, 0.5 centipoise, 1 centipoise or 2 centipoise and/or up to about 1 centipoise, 2 centipoise, 5 centipoise or 10 centipoise, such as from about 0 centipoise to about 5 centipoise or about 0 centipoise. Up to about 2 centipoise). In one aspect, the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C within about 10 centipoise of each other. In another aspect, the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C separated from each other by greater than about 10 centipoise. In various embodiments, the first viscosity μ ₁ may be from about 4 centipoise to about 24 centipoise (eg, at least about 4 centipoise, 8 centipoise, 10 centipoise or 12 centipoise, and/or up to about 12 centipoise, 16 centipoise, 20 centipoise or 24 centipoise, such as from about 10 centipoise to about 16 centipoise or from about 10 centipoise to about 20 centipoise. Alternatively or additionally, the second viscosity μ ₂ may range from about 4 centipoise to about 24 centipoise, from about 8 centipoise to about 16 centipoise or from about 20 centipoise to about 30 centipoise (eg, at least about 4 centipoise, 8%) 。 10 10 10 10 10 10 10 10 10 10 10 10 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 ) within the scope. When the PVOH resin blend contains three or more PVOH resins selected from the group consisting of PVOH polymers and PVOH copolymer resins, the aforementioned viscosity values may be individually applied to each PVOH polymer or PVOH copolymer and the aforementioned viscosity difference may be applied to PVOH resins. The blend and each PVOH polymer/PVOH copolymer pair in the resulting water soluble film.

Unless otherwise stated, it is contemplated that the water-soluble films disclosed, articles, such as transfer pouches, and related methods, including the films, include elements, features, and steps that are included in additional contexts as further described below (including schemas and examples) Embodiments of any combination of one or more of the others shown.

In any embodiment, the water soluble article or sachet may contain a composition such as a home care composition. The composition can be selected from a liquid, a solid, or a combination thereof. As used herein, "liquid" includes free flowing liquids, as well as slurries, gels, foams, and mouss. Non-limiting examples of liquids include light and heavy duty liquid cleanser compositions, fabric enhancers, detergent gels commonly used in laundry, bleaching and laundry additives. Gases (eg, suspended bubbles) or solids (eg, particles) can be included in the liquid. "Solid" as used herein includes, but is not limited to, powders, agglomerates, and mixtures thereof. Non-limiting examples of solids include: granules, microcapsules, beads, noodles, and pearlescent spheres. Solid compositions can provide, but are not limited to, benefits in washing, pre-treatment The technical benefits of the benefits and/or aesthetic effects.

In any of the laundry-centered embodiments, the composition can be selected, for example, from the group consisting of: liquid light and liquid heavy duty liquid cleanser compositions, powdered detergent compositions, fabric enhancers, Cleaner gels commonly used in laundry as well as bleaching (eg organic or inorganic bleaching) and laundry additives.

As used herein, the term "homopolymer" generally includes a polymer having a single type of monomeric repeating unit (eg, a polymer chain consisting of or consisting essentially of a single monomeric repeating unit). For the particular case of PVOH, the term "homopolymer" (or "PVOH homopolymer" or "PVOH polymer") further comprises a distribution having vinyl alcohol monomer units and vinyl acetate monomer units, depending on the degree of hydrolysis. Copolymer (e.g., a polymer chain consisting of or consisting essentially of vinyl alcohol and vinyl acetate monomer units). In the limited case of 100% hydrolysis, a PVOH homopolymer may comprise a true homopolymer having only vinyl alcohol units.

As used herein, the term "copolymer" generally includes a polymer having two or more types of monomeric repeating units (eg, consisting of or consisting essentially of two or more different monomeric repeating units). The polymer chain is in the form of a random copolymer, a block copolymer or the like). For the particular case of PVOH, the term "copolymer" (or "PVOH copolymer") further comprises having vinyl alcohol monomer units and vinyl acetate monomer units, and at least one other type of monomer repeat unit, depending on the degree of hydrolysis. Distributed copolymer (eg, three- (or higher) polymerization consisting of or consisting essentially of vinyl alcohol monomer units, vinyl acetate monomer units, and one or more other monomer units, such as anionic monomer units Chain of things). In the limited case of 100% hydrolysis, a PVOH copolymer may comprise a copolymer having vinyl alcohol units and one or more other monomer units, but no vinyl acetate units.

The term "comprising", as used herein, is intended to include additional reagents, elements, steps or features in addition to those indicated.

As used herein and unless otherwise specified, the terms "% by weight" and "% by weight" are intended to mean "dry" (non-aqueous) parts by weight of the entire film (if appropriate) or sealed. The composition of the identified elements, based on parts by weight of the entire composition (as appropriate) in the sachet. As used herein and unless otherwise specified, the term "phr" is intended to mean the composition of the identifying elements of the fraction of each hundred parts of water soluble polymer (or resin; PVOH or others) in a water soluble film.

All ranges set forth herein encompass all possible subsets of ranges and any combinations of such subset ranges. Unless otherwise stated, by default, the scope contains the endpoints of the statement. Where a range of values is provided, it is to be understood that the various intermediate values and any other stated values or intermediate values within the stated range of the stated range are encompassed within the invention. The upper and lower limits of such smaller ranges may be independently included within the scope of the invention and are intended to be limited to any particular limitation. Where the stated range includes one or both of the limits, the exclusion of one or both of the

Water soluble film composition

The water-soluble film composition, the components which are optionally used therein, and the methods of making the same are well known in the art, whether used to make relatively thin water-soluble films (e.g., as pouch materials) or others.

In one class of embodiments, the water soluble film comprises polyvinyl alcohol (PVOH), including homopolymers thereof (eg, comprising only vinyl alcohol and vinyl acetate monomer units) and copolymers thereof (eg, comprising vinyl alcohol and acetic acid) One or more other monomer units other than the vinyl ester unit). PVOH is a synthetic resin usually prepared by alcoholysis of polyvinyl acetate, which is commonly referred to as hydrolysis or saponification. The fully hydrolyzed PVOH in which almost all of the acetate groups have been converted to alcohol groups is a strongly hydrogen bonded highly crystalline polymer that only dissolves in hot water above about 140 °F (60 °C). If a sufficient number of acetate groups are allowed to remain after hydrolysis of the polyvinyl acetate, the PVOH polymer is referred to as partial hydrolysis, which is more weakly hydrogen bonded and less crystalline and soluble in less than about 50 °F (10 ° C) ) in cold water. The intermediate cold water or hot water soluble film may comprise, for example, an intermediate portion hydrolyzed PVOH (e.g., having a degree of hydrolysis of from about 94% to about 98%) and is only readily soluble in warm water - e.g., rapidly soluble at about 40 ° C and greater than 40 ° C. At temperature. The fully hydrolyzed and partially hydrolyzed PVOH types are generally referred to as PVOH homopolymers, but technically, the partial hydrolysis type is a vinyl alcohol-vinyl acetate copolymer.

The degree of hydrolysis (DH) of the PVOH polymer and PVOH copolymer included in the water soluble film of the present invention may range from about 75% to about 99% (eg, from about 79% to about 92%, from about 86.5% to about 89% or About 88%, such as for cold water soluble compositions; from about 90% to about 99%, from about 92% to about 99% or from about 95% to about 99%). As the degree of hydrolysis decreases, the mechanical strength of the film made of the resin will decrease, but the dissolution at a temperature lower than about 20 °C is accelerated. As the degree of hydrolysis increases, the film made of the polymer tends to become mechanically strong and the thermoformability tends to decrease. The degree of hydrolysis of PVOH can be chosen such that the water solubility of the polymer is temperature dependent, and thus also affects the solubility of the film made from the polymer, any compatibilizer, and additional ingredients. In one option, the membrane is cold water soluble. The cold water soluble film is soluble in water at a temperature of less than 10 ° C and may comprise a degree of hydrolysis in the range of from about 75% to about 90% or in the range of from about 80% to about 90% or in the range of from about 85% to about 90%. PVOH inside. In another option, the membrane is hot water soluble. The hot water soluble film is soluble in water at a temperature of at least about 60 ° C and may comprise a degree of hydrolysis of at least about 98% PVOH.

Other water soluble polymers used in blends other than PVOH polymers and PVOH copolymers may include, but are not limited to, modified polyvinyl alcohol, polyacrylates, water soluble acrylate copolymers, polyvinylpyrrolidone , polyethylenimine, pullulan, water-soluble natural polymer, including but not limited to guar gum, gum arabic, tri-gum, carrageenan and starch, water-soluble polymer derivative And including, but not limited to, modified starch, ethoxylated starch, and hydroxypropylated starch, a combination of the foregoing copolymers, and any of the foregoing. Other water-soluble polymers may include polyoxyalkylene, polyacrylamide, polyacrylic acid and salts thereof, cellulose, cellulose ether, cellulose ester, cellulose decylamine, polyvinyl acetate, polycarboxylic acid and salts thereof, Polyamino acid, polyamine, gelatin, methyl cellulose, carboxymethyl cellulose and its salts, dextrin, ethyl chloride, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, maltodextrin And polymethacrylate. Such water soluble polymers (PVOH or others) are commercially available from a variety of sources. Any of the foregoing water soluble polymers are generally suitable for use as a film forming polymer. In general, the water soluble film may comprise a copolymer and/or blend of the foregoing resins.

A water soluble polymer (eg, a PVOH resin blend, alone or in combination with other water soluble polymers) can be included in the film, for example, in an amount ranging from about 30% by weight or 50% by weight to about 90% by weight or 95% by weight. . The weight ratio of the amount of all water soluble polymers compared to the combined amounts of all plasticizers, compatibilizers, and secondary additives can be, for example, from about 0.5 to about 18, from about 0.5 to about 15, from about 0.5 to about 9, It is in the range of from about 0.5 to about 5, from about 1 to 3, or from about 1 to 2. In view of the desired mechanical film properties, the particular amount of plasticizer and other non-polymer components can be selected in a particular embodiment based on the intended application of the water soluble film to adjust film flexibility and impart processing benefits.

Water soluble polymers for use in the films described herein (including but not limited to) The PVOH polymer and the PVOH copolymer may be, for example, from about 3.0 centipoise to about 27.0 centipoise, from about 4.0 centipoise to about 24.0 centipoise, from about 4.0 centipoise to about 23.0 centipoise, from about 4.0 centipoise to about Viscosity characterization in the range of 15 centipoise or about 6.0 centipoise to about 10.0 centipoise. The viscosity of the polymer was measured by using a Brookfield LV type viscometer with a UL adapter, as measured in the British Standard EN ISO 15023-2:2006 Annex E Brockfield Test Method. To determine. The viscosity of the 4% aqueous solution of polyvinyl alcohol is shown to be an international convention at 20 °C. Unless otherwise specified, the viscosity of the polymer specified herein as centipoise is understood to mean the viscosity of a 4% aqueous solution of the aqueous polymer at 20 °C.

Well known in the art are the viscosity of water soluble polymers (PVOH or others) and the weight average molecular weight of the same polymer ( Related, and viscosity is usually used Agent. Thus, the weight average molecular weight of the water soluble polymer (comprising the first PVOH copolymer and the second PVOH polymer) can range, for example, from about 30,000 to about 175,000, or from about 30,000 to about 100,000 or from about 55,000 to about 80,000.

The water soluble film may contain other auxiliaries and processing aids such as, but not limited to, plasticizers, plasticizer compatibilizers, surfactants, lubricants, mold release agents, fillers, extenders, crosslinks Agents, anti-caking agents, antioxidants, anti-sticking agents, antifoaming agents, nano particles, such as layered strontium type nano-clay (such as sodium montmorillonite), bleach (such as sodium metabisulfite, Sodium bisulfite or other), aversive agents such as bittering agents (eg, denatonium salts such as denatonium benzoate, denatonium, and denatonium chloride; sucrose octaacetate; quinine; Flavonoids, such as quercetin and naringenin; and bitter wood bitterin, such as bitter lignin and strychnine) and flavoring agents (eg capsaicin, piperine, allyl isothiocyanate, and resin flurin) Xin) and other functional ingredients in an amount suitable for their intended purpose. Embodiments containing a plasticizer are preferred. Alone or together, The amount of such agents can be up to about 50%, 20%, 15%, 10%, 5%, 4% and/or at least 0.01%, 0.1%, 1% or 5% by weight %.

The plasticizer may include, but is not limited to, glycerin, diglycerin, sorbitol, ethylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, tetraethylene glycol, propylene glycol, polyethylene glycol of up to 400 MW. , neopentyl glycol, trimethylolpropane, polyether polyol, sorbitol, 2-methyl-1,3-propanediol, ethanolamine, and mixtures thereof. A preferred plasticizer is glycerin, sorbitol, triethylene glycol, propylene glycol, dipropylene glycol, 2-methyl-1,3-propanediol, trimethylolpropane or a combination thereof. The total amount of plasticizer may range from about 10% to about 40% by weight, or from about 15% to about 35% by weight, or from about 20% to about 30% by weight, such as about 25% by weight, based on total film weight. Within the scope. A combination of glycerin, dipropylene glycol, and sorbitol can be used. Glycerol may optionally be used in an amount of from about 5% by weight to about 30% by weight, or from 5% by weight to about 20% by weight, for example about 13% by weight, as appropriate. Dipropylene glycol may optionally be used in an amount of from about 1% by weight to about 20% by weight, or from about 3% by weight to about 10% by weight, for example about 6% by weight, based on the case. The sorbitol may be used in an amount of from about 1% by weight to about 20% by weight, or from about 2% by weight to about 10% by weight, for example about 5% by weight, as appropriate. The particular amount of plasticizer can be selected in a particular embodiment based on the desired film flexibility and processability characteristics of the water soluble film. At low plasticizer levels, the film can become brittle, difficult to process, or susceptible to breakage. At higher plasticizer levels, the film can be too soft, weak or difficult to process for a desired application.

Suitable surfactants can include nonionic, cationic, anionic, and zwitterionic classes. Suitable surfactants include, but are not limited to, polyoxyethylated polyoxypropylene diols, alcohol ethoxylates, alkyl phenol ethoxylates, third acetylene diols, and alkanolamines (nonionic agents) , polyoxyethylated amines, quaternary ammonium salts and quaternized ammonium polyoxyethylated amines (cationic agents) and amine oxides, N-alkyl betaines and sulfobetaines (zwitterionic agents). Other suitable surfactants a chyloated fatty acid ester containing dioctyl sulfosuccinate, glycerin and propylene glycol, decyl ester of a fatty acid, sodium alkyl sulfate, polysorbate 20, polysorbate 60, polysorbate Alcohol ester 65, polysorbate 80, lecithin, ethoxylated fatty acid esters of glycerol and propylene glycol, and ethoxylated esters of fatty acids, and combinations thereof. In various embodiments, the amount of surfactant in the water soluble film ranges from about 0.1% to 2.5% by weight, and optionally from about 1.0% to 2.0% by weight.

Suitable lubricants/release agents can include, but are not limited to, fatty acids and salts thereof, fatty alcohols, fatty esters, fatty amines, fatty amine acetates, and fatty guanamines. Preferred lubricants/release agents are fatty acids, fatty acid salts, and fatty amine acetates. In one type of embodiment, the amount of lubricant/release agent in the water soluble film ranges from about 0.02% to about 1.5% by weight, and optionally from about 0.1% to about 1% by weight.

Suitable fillers/extenders/anti-caking agents/anti-sticking agents include, but are not limited to, starch, modified starch, cross-linked polyvinylpyrrolidone, crosslinked cellulose, microcrystalline cellulose, cerium oxide , metal oxides, calcium carbonate, talc and mica. Preferred materials are starch, modified starch and cerium oxide. In one type of embodiment, the amount of filler/extender/anti-caking agent/anti-sticking agent in the water soluble film is from about 0.1% to about 25% by weight, or from about 1% to about 10% by weight. %, or from about 2% by weight to about 8% by weight, or from about 3% by weight to about 5% by weight. In the absence of starch, a preferred range of suitable filler/extender/anti-caking/anti-sticking agents is from about 0.1% by weight or from 1% by weight to about 4% by weight or 6% by weight, or From about 1% by weight to about 4% by weight, or from about 1% by weight to about 2.5% by weight.

The water soluble film may additionally have a residual moisture content as measured by Karl Fischer titration of at least 4% by weight, for example in the range of from about 4% by weight to about 10% by weight.

Other features of the water-soluble composition composition, such as a film, can be found in U.S. Publication No. 2011/0189413 and U.S. Application Serial No. 13/740,053, the disclosure of each of

Method of making a film

An embodiment of a covered class is characterized by blending, co-casting or welding a first PVOH copolymer and a second PVOH polymer, for example, according to the type and amount described herein, along with the preferred and optionally present conditions described herein. A water soluble film formed by a grade of additive. If the polymer is first blended, the water soluble film is preferably formed by casting the resulting blend (e.g., along with other plasticizers and other additives) to form a film. If the polymer is welded, the water soluble film can be formed, for example, by solvent or heat welding. Another covered category of embodiments is characterized by a water soluble film formed by extrusion, such as blow molding. In one encompassed, non-limiting embodiment, a PVOH polymer and a acrylamidomethylpropanesulfonic acid PVOH terpolymer blend film are formed by blow molding.

The film can have any suitable thickness. For example, the film can have a thickness ranging from about 5 microns to about 200 microns, or from about 20 microns to about 100 microns, or from about 40 microns to about 85 microns, such as 76 microns.

The water-soluble film may be a self-supporting film composed of one layer or a plurality of identical layers, as the case may be.

The film is adapted to produce an article, such as a packet, comprising a detergent composition comprising a cleaning active to form a sachet. The cleansing active can take any form, such as a powder, gel, slurry, liquid, lozenge, or any combination thereof. The film is also suitable for use in any other application where improved wet processing and low cold water residue are required. The film forms at least one side wall of the pouch and/or the package, optionally the entire pouch and/or the package, and preferably an outer surface of at least one of the side walls.

The films described herein can also be used to make articles, such as packets, having two or more compartments made of the same film or a combination of films of other polymeric materials. As is known in the art, additional films can be obtained, for example, by extrusion, blow molding, extrusion or blow molding of the film or different polymeric materials. In one type of embodiment, the polymer, copolymer or derivative thereof suitable for use as an additional film is selected from the group consisting of polyvinyl alcohol, polyvinylpyrrolidone, polyoxyalkylenes, polyacrylic acid, cellulose, cellulose ethers, fibers. a polyester, cellulose decylamine, polyvinyl acetate, polycarboxylic acid and salt, polyamino acid or peptide, polyamine, polypropylene decylamine, copolymer of maleic acid / acrylic acid, starch and gelatin Polysaccharides, natural gums such as Sanxian gum and carrageenan. For example, the polymer may be selected from the group consisting of polyacrylates and water-soluble acrylate copolymers, methyl cellulose, sodium carboxymethyl cellulose, dextrin, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl group Cellulose, maltodextrin, polymethacrylate, and combinations thereof, or selected from the group consisting of polyvinyl alcohol, polyvinyl alcohol copolymer, and hydroxypropyl methylcellulose (HPMC), and combinations thereof. An embodiment of the covered class is characterized by a encapsulating material, such as a polymer in a PVOH resin blend as described above having a content of at least 60%.

Items and pouches

The article of the present invention comprises a water soluble film and may comprise a composition of the film, typically a home care composition, in close proximity to the film.

The article of the present invention may comprise a pouch comprising at least one sealed compartment. Thus, the pouch can include a single compartment or multiple compartments. 1 illustrates an article in which a water soluble pouch 100 is formed from a water soluble polymeric film 10, polymer film 20 sealed at a portion interface 30. One or both of film 10, film 20 comprise a PVOH resin blend of a first PVOH copolymer and a second PVOH polymer. Membrane 10, membrane 20 defines an inner pouch container volume 40 containing any desired composition 50 for release into an aqueous environment. Composition 50 is not specifically limited, for example, including Any of a variety of cleaning compositions described herein. In embodiments comprising a plurality of compartments (not shown), each compartment may contain the same and/or different compositions. The composition may in turn take any suitable form including, but not limited to, liquids, solids, and combinations thereof (e.g., solids suspended in a liquid). In some embodiments, the pouch includes a first compartment, a second compartment, and a third compartment, each of which contains a different first composition, second composition, and third composition, respectively.

The compartments of the multi-compartment pouches can have the same or different sizes and/or volumes. The compartments of the multi-compartment pouch of the present invention may be separate or joined in any suitable manner. In some embodiments, the second compartment and/or the third compartment and/or the subsequent compartment are superimposed on the first compartment. In one embodiment, the third compartment may be superimposed on the second compartment, which in turn is superimposed on the first compartment in a sandwich configuration. Alternatively, the second compartment and the third compartment may be superimposed on the first compartment. However, it is also contemplated that the first compartment, the second compartment, and optionally the third compartment and subsequent compartments may be connected to one another in a side-by-side relationship. The compartments may be packaged in a series, each compartment being individually isolated by a perforation line. Thus, each compartment can be individually torn apart by the end user from the remainder of the string, for example by pre-treating or post-treating a fabric with a composition from a compartment. In some embodiments, the first compartment may be surrounded by at least a second compartment, such as a tire-and-rim configuration, or a pouch-in-a-pouch configuration .

In some embodiments, the multi-compartment pouch includes three compartments consisting of a large first compartment and two smaller compartments. The second smaller compartment and the third smaller compartment are superimposed on the first larger compartment. The size and geometry of the compartments are chosen such that this configuration is achieved. The geometry of the compartments can be the same or different. In some embodiments, the second compartment and optionally the third compartment each have a different geometry and shape than the first compartment. In such embodiments, the second compartment and optionally the third compartment are configured as designed on the first compartment. The design can be decorative, Instructive or illustrative, for example to illustrate concepts or instructions and/or to indicate the source of the product. In some embodiments, the first compartment is a largest compartment having two major faces sealed around the perimeter, and the second compartment is smaller, covering less than about 75% or less of the surface area of one face of the first compartment 50%. In embodiments in which the third compartment is present, the above structure may be the same, but the second compartment and the third compartment cover less than about 60% or less than about 50% or less of the surface area of one face of the first compartment. About 45%.

Articles, pouches and/or packages of the present invention may include one or more different films. For example, in a single compartment embodiment, the package may be made from one wall that folds by itself and seals at the edges; or alternatively, is made of two walls that are sealed at the edges together. In a multi-compartment embodiment, the package can be made from one or more films such that any given package compartment can include walls made from a single film or a plurality of films having different compositions. In one embodiment, the multi-compartment pouch includes at least three walls: an outer upper wall; an outer lower wall; and a dividing wall. The outer upper and outer lower walls are generally opposite and form the exterior of the pouch. The dividing wall is the interior of the pouch and is secured to the generally opposite outer wall along the sealing line. The dividing wall divides the interior of the multi-compartment pouch into at least a first compartment and a second compartment.

Items such as pouches and packets can be made using any suitable equipment and method. For example, a single compartment pouch can be made using vertical form fill, horizontal form fill, or drum fill techniques as generally known in the art. Such methods can be continuous or intermittent. The film can be wet and/or heated to increase its ductility. The method may also involve the use of a vacuum to draw the membrane into a suitable mold. After the film is on the horizontal portion of the surface, the vacuum that draws the film into the mold can be applied for from about 0.2 seconds to about 5 seconds or from about 0.3 seconds to about 3 or from about 0.5 seconds to about 1.5 seconds. For example, this vacuum can provide a range of 10 mbar to 1000 mbar or in the range of 100 mbar to 600 mbar. Negative pressure.

The mold in which the package can be made can depend on the desired size of the article, such as a pouch, having any shape, length, width, and depth. If necessary, it can also change size and shape with the mold. For example, the final pouch may have a volume of from about 5 milliliters to about 300 milliliters, or from about 10 milliliters to 150 milliliters, or from about 20 milliliters to about 100 milliliters, and the mold size adjusted accordingly.

In one embodiment, the package or another item includes a first sealed compartment and a second sealed compartment. The second compartment is generally in a superposed relationship with the first sealed compartment such that the second sealed compartment and the first sealed compartment share a dividing wall inside the pouch.

In one embodiment, the package or another item comprising a first compartment and a second compartment further includes a third sealed compartment. The third sealed compartment is generally in a superposed relationship with the first sealed compartment such that the third sealed compartment and the first sealed compartment share a dividing wall inside the pouch.

In some embodiments, the first composition and the second composition are selected from one of the group consisting of: liquid, liquid; liquid, powder; powder, powder; and powder, liquid.

In some embodiments, the first composition, the second composition, and the third composition are selected from one of the group consisting of solids, liquids, liquids and liquids, liquids, liquids.

In one embodiment, a single compartment or a plurality of sealed compartments contain a composition. The plurality of compartments may each contain the same or different compositions. The composition is selected from the group consisting of a liquid, a solid, or a combination thereof.

In one embodiment, the composition may be selected from the group consisting of: liquid light and liquid heavy duty liquid cleanser compositions, powdered detergent compositions, dishwashing detergents for hand washing and/or machine washing; hard surfaces Cleaning composition, fabric enhancer, usually used for washing A detergent gel for clothing as well as bleaching and laundry additives, shampoos and body washes.

Forming, sealing and thermoforming

An example of a covered class is characterized by good thermoformability of a water soluble film made as described herein. A thermoformable film is a film that can be formed by applying heat and force.

Thermoforming the film to heat the film to form it in a mold and then allowing the film to cool, then the film will retain the shape of the mold. Heat can be applied using any suitable means. For example, the film can be heated directly by passing the film under a heating element or through hot air before feeding the film onto a surface or while the film is on a surface. Alternatively, the film can be indirectly heated, for example by heating the surface or applying a thermal article to the film. In some embodiments, the film is heated using an infrared light. The film can be heated to a temperature of from about 50 ° C to about 150 ° C, from about 50 ° C to about 120 ° C, from about 60 ° C to about 130 ° C, from about 70 ° C to about 120 ° C, or from about 60 ° C to about 90 ° C. Thermoforming can be carried out by any one or more of the following methods: manually covering a thermosoft film over the mold, or inductively forming a soft film into a mold (eg, vacuum forming), or having a precision The new extruded sheet of known temperature is automatically indexed into a forming and finishing station, or automatically placed, inserted and/or pneumatically stretched and pressure formed into a film.

Alternatively, the film can be wetted by any suitable means, such as by applying a wetting agent (including water, film composition, plasticizing for the film composition) prior to feeding the film onto the surface or on the surface. The agent or a solution of any combination of the above) is sprayed onto the film for direct wetting; or indirectly wetted by wetting the surface or by applying a wet article to the film.

Once the film has been heated and/or wetted, it can be drawn into the appropriate mold, preferably using a vacuum. Filling of the molded film can be accomplished by any suitable means. In some embodiments, the best method will depend on the product form and the desired fill speed. In some embodiments, The molded film is filled by an in-line filling technique. The filled film is then closed using a second film to form a pouch by any suitable method. This can be done in a horizontal position and in a continuous constant speed motion. Closure can be accomplished by continuously feeding a second film, preferably a water soluble film, over the open package and onto the open package and then preferably sealing the first film and the second film together, typically in a mold In the area between and therefore between the packets.

Any suitable method of sealing the package and/or its individual compartments can be employed. Non-limiting examples of such means include heat sealing, solvent welding, solvent or wet sealing, and combinations thereof. Typically, only the area where the seal is formed is treated with heat or solvent. Heat or solvent can be applied by any method, typically applied to the closure material, and typically only applied to the area where the seal is to be formed. If a solvent or wet seal or solder is used, heat may also be applied. Preferred wet or solvent sealing/welding methods include selectively applying a solvent to such areas by, for example, spraying or printing a solvent onto a region between the molds or a sealing material, and then thereafter Pressure is applied to the area to form a seal. For example, a sealing roll and belt as described above (and heat as appropriate) can be used.

The formed pouch can then be cut by a cutting device. The cutting can be done using any known method. Cutting in a continuous manner may also be preferred, and is preferably at a constant speed and preferably simultaneously in a horizontal position. The cutting device can for example be a sharp object or a thermal object or a laser, whereby in the latter two cases the thermal object or laser is 'burned' through the membrane/sealing area.

The different compartments of the multi-compartment pouch can be brought together in a side-by-side manner, wherein the resulting connected pouches can be separated or not separated by cutting. Alternatively, the compartments can be manufactured separately.

In some embodiments, the pouch can be made according to a method comprising the steps of: a) forming a first compartment (as described above); b) forming some or all of the closures formed in step (a) Forming a recess in the compartment to create a second molding compartment superposed over the first compartment; c) filling and closing the second compartment by means of a third membrane; d) sealing the first membrane, the second membrane, and a third film; and e) cutting the film to create a multi-compartment pouch. The recess formed in step (b) can be achieved by applying a vacuum to the compartment prepared in step (a).

In some embodiments, the second compartment and/or the third compartment may be made in a separate step, and then combined with the first compartment, as described in European Patent Application No. 08101442.5 or WO 2009/152031. .

In some embodiments, the pouch can be made according to a method comprising the steps of: a) using heat and/or vacuum as appropriate, using a first film on a first forming machine to form a first compartment; Filling the first compartment with a first composition; c) deforming a second film on a second forming machine using heat and vacuum as appropriate to produce a second molded compartment and optionally a three-molded compartment; d) a second compartment filled with a second compartment and optionally present; e) a third compartment sealed with a third membrane and optionally a third compartment; f) sealed a second compartment and optionally a third compartment disposed on the first compartment; g) sealing the first compartment, the second compartment and optionally a third compartment; and h) cutting said The membrane produces a multi-compartment pouch.

The first forming machine and the second forming machine can be based on their suitability for the above method. In some embodiments, the first forming machine is preferably a horizontal forming machine and the second forming machine is preferably a drum forming machine, preferably above the first forming machine.

It will be appreciated that by using a suitable feed station, it is possible to manufacture a multi-compartment pouch incorporating a plurality of different or unique compositions and/or different or unique powder, liquid, gel or slurry compositions.

In some embodiments, the film and/or pouch is made of a suitable material, such as a living Spray or spread with a sex agent, a lubricant, a disgusting agent, or a mixture thereof. In some embodiments, the film and/or pouch is printed, for example, by an ink and/or an active agent.

Pouch contents

The articles of the invention (e.g., in the form of sachets or packets) can contain various compositions, such as home care compositions. A multi-compartment pouch can contain the same or different compositions in each separation compartment. The composition is close to the water soluble film. The composition can be less than about 10 centimeters from the film, or less than about 5 centimeters, or less than about 1 centimeter. Typically, the composition is adjacent to or in contact with the film. The film may be in the form of a sachet or a compartment containing the composition.

As noted above, membranes and sachets have materials that exchange hydrogen ions for packaging (eg, in direct contact therewith), such as by acid/base balance, such as amine-fatty acid balance and/or amine-anionic surfactant acid balance characterization. The composition is especially advantageous.

This feature of the invention can be used to maintain compositions containing incompatible ingredients (e.g., bleaches and enzymes) physically separated or separated from one another. Such separations may extend the useful life of such components and/or reduce their physical instability. Alternatively or additionally, such separation may provide an aesthetic benefit as described in European Patent Application No. 09161692.0.

Non-limiting examples of suitable compositions (e.g., home care compositions) include light and heavy duty liquid cleansing compositions, hard surface cleaning compositions, detergent gels commonly used in laundry, bleach and laundry additives, fabric enhancer combinations Things (such as fabric softeners), shampoos, body washes, and other personal care compositions. The compositions used in the sachets of the present invention may be in the form of a liquid, a solid or a powder. The liquid composition can include a solid. The solid may comprise a powder or agglomerate such as microcapsules, beads, noodles or one or more pearlescent spheres or mixtures thereof. Such solid units may provide a technical benefit via washing or in the form of a pretreated, delayed or continuously released component; or Or in addition, it can provide an aesthetic effect.

The film encapsulated compositions described herein can have any suitable viscosity depending on factors such as the purpose of formulating the ingredients and compositions. In one embodiment, the composition has a 100 cps to 3,000 cps, or 300 cps to 2,000 cps, or 500 cps to 000 cps at a shear rate of 20s ^-1 and a temperature 20 ℃ High shear viscosity value, and a shear rate of ¹ S ^-1 from 500 cps to 100,000 cps, or 1000 cps to 10,000 cps, or 1,300 cps to 5,000 cps and a low shear at 20 ° C Cut viscosity value. Methods of measuring viscosity are known in the art. According to the invention, the viscosity measurement is carried out using a rotary rheometer, such as TA Instruments AR550. The apparatus comprises a 40 mm 2° or 1° conical clamp for an isotropic liquid having a gap of between about 50 microns and 60 microns, or a 40 for a particle containing liquid having a gap of 1000 microns. Millimeter flat steel plate. The measurement is carried out using a process comprising a conditioning step, a peak hold and a continuous ramp step. The adjustment step involves setting the measurement temperature to 20 ° C, setting the pre-shear of 10 seconds to a shear rate of 10 sec ^-1 and setting the balance of 60 seconds to the selected temperature. Peak hold involves applying a shear rate of 0.05 sec ^-1 at 20 °C for 3 minutes and sampling every 10 seconds. The continuous ramping step was carried out at 20 ° C for 3 minutes at a shear rate of 0.1 sec ^{- 1} to 1200 sec ^-1 to obtain a full flow profile.

In sachets or other articles comprising laundry, laundry additive, and/or fabric enhancer compositions, the composition can include one or more of the following non-limiting list of ingredients: fabric care benefit agents; detergent enzymes; deposition aids Rheology modifier; builder; bleach; bleach; bleach precursor; bleaching aid; bleach catalyst; perfume and/or perfume microcapsules (see for example US 5,137,646); perfume loaded zeolite; Agent; polyglycerol ester; whitening agent; pearlizing agent; enzyme stabilization system; fixing agent for anionic dyes, a binder for anionic surfactants, and a scavenger thereof; optical brightener or fluorescent agent Polymer; including, but not limited to, antifouling polymers and/or soil suspension polymers; dispersing agents; defoamers; non-aqueous solvents; fatty acids; suds suppressors, such as polyoxygenated suds suppressors (see : US Publication No. 2003/0060390 A1, ¶65-77); cationic starch (see: US 2004/0204337 A1 and US 2007/0219111 A1); scum dispersing agent (see: US 2003/0126282 A1, ¶ 89- 90); direct dye; Dyes (see: US 2014/0162929A1); colorants; sunscreens; antioxidants; solubilizers such as tosylate, cumene sulfonate and naphthalene sulfonate; color speckles; colored beads, Sphere or extrudate; clay softener; antibacterial agent. Any one or more of these ingredients are additionally described in European Patent Application No. 09161692.0, US Publication No. 2003/0139312 A1, and U.S. Patent Application Serial No. 61/229,981. Alternatively or additionally, the composition may include a surfactant, a quaternary ammonium compound, and/or a solvent system. The quaternary ammonium compound can be present in a fabric enhancer composition, such as a fabric softener, and includes a quaternary ammonium cation of a positively charged polyatomic ion of structure NR ₄ ⁺ wherein R is a monoalkyl or an aryl group.

Surfactant

The detergent composition can include from about 1% to about 80% by weight of the surfactant. Surfactants are especially preferred as a component of the first composition. Preferably, the first composition comprises from about 5% to about 50% by weight of a surfactant. The second composition and the third composition may include a surfactant in an amount of from 0.1% to 99.9%.

The cleansing surfactant utilized may be anionic, nonionic, zwitterionic, amphoteric or cationic, or may include compatible mixtures of these types. More preferably, the surfactant is selected from the group consisting of anionic, nonionic, cationic surfactants, and mixtures thereof. Preferably, the composition is substantially free of betaine surfactant. Applicable in this article The cleansing surfactants are described in U.S. Patent No. 3,664,961; U.S. Patent No. 3,919,678; U.S. Patent No. 4,222,905; Anionic and nonionic surfactants are preferred.

Suitable anionic surfactants can be of several different types by themselves. For example, a water soluble salt of a higher fatty acid, i.e., "soap", is a suitable anionic surfactant in the compositions herein. This includes alkali metal soaps such as the sodium, potassium, ammonium and alkylammonium salts of higher fatty acids having from about 8 to about 24 carbon atoms, and preferably from about 12 to about 18 carbon atoms. Soap can be made by direct saponification of fats and oils or by neutralization of free fatty acids. Particularly suitable are the sodium and potassium salts of a mixture of fatty acids derived from coconut oil and tallow, i.e., sodium or potassium tallow and coconut soap.

Other non-soap anionic surfactants suitable for use herein comprise a water-soluble salt of an organic sulfuric acid reaction product, preferably an alkali metal salt and an ammonium salt, having an alkane having from about 10 to about 20 carbon atoms in its molecular structure. And a sulfonic acid or sulfate group. (Included in the term "alkyl" is the alkyl moiety of the fluorenyl group). Examples of synthetic surfactant of this group comprises: a) the sodium, potassium and ammonium alkyl sulfates, especially by their higher alcohol is (C ₈ -C ₁₈₎ sulfated obtained, such as by the reduction of tallow Or glycerol esters of coconut oil; b) sodium, potassium and ammonium alkyl polyethoxylate sulphates, in particular alkyl groups containing from 10 to 22, preferably from 12 to 18 carbon atoms And wherein the polyethoxylate chain contains from 1 to 15, preferably from 1 to 6 ethoxylate moieties; and the sodium and potassium alkyl benzene sulfonate, wherein the alkyl group contains about 9 Up to about 15 carbon atoms in the form of a straight chain or a branched chain, such as those described in U.S. Patent No. 2,220,099 and U.S. Patent No. 2,477,383. Particularly valuable are linear alkyl benzene sulfonates wherein the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as C ₁₁ -C ₁₃ LAS.

The anionic surfactants and auxiliary anionic co-surfactants of the present invention may be present in acid form, and the acid form may be neutralized to form a surfactant salt desirably used in the detergent compositions of the present invention. Typical agents for neutralization comprise a metal relative ionic base such as a hydroxide such as NaOH or KOH. More preferred agents for neutralizing the anionic surfactants of the invention and the anionic surfactant or co-surfactant in acid form comprise ammonia, an amine or an alkanolamine. Alkanolamines are preferred. Suitable non-limiting examples include monoethanolamine, diethanolamine, triethanolamine, and other linear or branched alkanolamines known in the art; for example, highly preferred alkanolamines comprise 2-amino-1-propanol , 1-aminopropanol, monoisopropanolamine or 1-amino-3-propanol. Amine neutralization can be carried out to a full or partial extent, for example a portion of the anionic surfactant mixture can be neutralized with sodium or potassium and a portion of the anionic surfactant mixture can be neutralized with an amine or an alkanolamine.

Preferred nonionic surfactants are those of the formula R ₁ (OC ₂ H ₄ ) _n OH wherein R ₁ is a C ₁₀ -C ₁₆ alkyl group or a C ₈ -C ₁₂ alkylphenyl group, and n is 3 to about 80. Especially preferred is ₁₂ -C ₁₅ alcohols with from about 5 mole per mole alcohol, the condensation product of C to about 20 mole of ethylene oxide, for example C ₁₂ -C ₁₃ alcohols with from about 6.5 mole per mole alcohol, ethylene Alkane condensation.

Solvent system

The solvent system in the compositions of the present invention can be a solvent system that is only a mixture of an aqueous or organic solvent and water. Preferred organic solvents include glycerin, ethylene glycol, 1,3 propylene glycol, 1,2 propylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, 2,3-butanediol, 1,3 butanediol, diethylene glycol, triethylene glycol, polyethylene glycol, glycerol formal dipropylene glycol, polypropylene glycol, dipropylene glycol n-butyl ether and mixtures thereof, more preferably 1,2-propanediol, ethanol, Glycerin, dipropylene glycol, methyl propanediol, and mixtures thereof. Other lower alcohols, C ₁ -C ₄ alkanolamines such as monoethanolamine and triethanolamine can also be used. The solvent system may be absent, for example, in the anhydrous solids embodiments of the present invention, but more typically in the range of from about 0.1% to about 98%, preferably from at least about 1% to about 50%, more typically from about 5% to about 25%. The content is present. In general, the compositions of the present invention, when specified in liquid form, comprise less than 50% water, preferably from about 0.1% to about 20% water, or more preferably from about 0.5% to about 15% by weight of the composition, or About 5% to about 12% water.

The compositions herein can be prepared generally by mixing the ingredients together. If a pearlescent material is used, it should be added later in the mixing. If a first-class modifier is used, it is preferred to first form a premix wherein the rheology modifier is dispersed in a portion of the water and ultimately used in other components including the composition as the case may be. This premix is formed in such a manner that it forms a structured liquid. The surfactant and the necessary laundry adjuvant material can then be added to the structured premix as it is stirred, along with water and any detergent composition adjuvant to be used as appropriate.

Suitable compositions may have a pH of from about 2 to about 12, from about 4 to about 12, from about 5.5 to about 9.5, from about 6 to about 8.5, or from about 6.5 to about 8.2. The laundry detergent composition can have a pH of from about 6 to about 10, from about 6.5 to about 8.5, from about 7 to about 7.5, or from about 8 to about 10. The self-cleaning composition can have a pH of from about 8 to about 12. The laundry detergent additive composition can have a pH of from about 4 to about 8. The fabric enhancer can have a pH of from about 2 or 4 to about 8, or from about 2 to about 4, or from about 2.5 to about 3.5, or from about 2.7 to about 3.3.

The pH of the detergent is defined as the pH of the 10% (w/v) aqueous solution of the cleaning agent at 20 ± 2 ° C; for solid and powdered detergents, this is defined as 1% (by weight) of the cleaning agent at 20 ± 2 ° C / volume) pH of the aqueous solution. Any meter capable of measuring pH to ±0.01 pH units is suitable. Orion Instruments (Thermc Scientific, Clintinpark-Keppekouter, Ninovesteenweg 198, 9320 Erembodegem-Aalst, Belgium) or equivalent is an acceptable instrument. The pH meter should be equipped with a suitable glass electrode with a reference to calomel or silver/silver chloride. An example includes a Mettler DB 115. The electrode should be stored in the electrolyte solution recommended by the manufacturer.

A 10% aqueous solution of the detergent was prepared according to the following procedure. A sample of 10 grams ± 0.05 grams was weighed by a balance capable of accurately measuring to ± 0.02 grams. The sample was transferred to a 100 ml volumetric flask and diluted with purified water (deionized water and/or distilled water as appropriate, as long as the conductivity of the water was <5 microseconds/cm) to a volume and mixed thoroughly. Approximately 50 ml of the resulting solution was poured into a beaker, the temperature was adjusted to 20 °C ± 2 °C and the pH was measured according to the pH meter manufacturer's standard procedure (following the manufacturer's instructions to also install and calibrate the pH component is critical) ).

For solid and powdered detergents, a 1% aqueous solution of detergent was prepared according to the following procedure. A sample of 10 grams ± 0.05 grams was weighed by a balance capable of accurately measuring to ± 0.02 grams. The sample was transferred to a 1000 ml volumetric flask and diluted with purified water (deionized water and/or distilled water as appropriate, as long as the conductivity of the water was <5 microseconds/cm) to a volume and mixed thoroughly. Approximately 50 ml of the resulting solution was poured into a beaker, the temperature was adjusted to 20 °C ± 2 °C and the pH was measured according to the pH meter manufacturer's standard procedure (following the manufacturer's instructions to also install and calibrate the pH component is critical) ).

bleach

Inorganic and organic bleaching agents are suitable cleaning active agents for use herein. Inorganic bleaches include perhydrate salts such as perborates, percarbonates, perphosphates, persulphates and perrhenates. The inorganic perhydrate salt is usually an alkali metal salt. The inorganic perhydrate salt can be included as a crystalline solid without additional protection. Alternatively, the salt can be coated as is known in the art.

Alkali metal percarbonate, in particular sodium percarbonate, is a preferred peroxygenate for use in the detergent compositions described herein. The percarbonate is preferably incorporated into the product in a coated form that provides stability within the product. Suitable coating materials which provide product stability include a water-soluble alkali metal sulfate and a mixed salt of carbonate. Such a coating, along with a coating method, has been previously described in GB 1,466,799 and U.S. Patent Nos. 3,975,280; 4,075,116; and 5,340,496 each incorporated herein by reference. The weight ratio of the mixed salt coating material to the percarbonate is in the range of 1:99 to 1:9, and preferably 1:49 to 1:19. Preferably, the mixed salt is sodium sulfate and sodium carbonate having the formula Na ₂ SO ₄ + n + Na ₂ CO ₃ wherein n is from 0.1 to 3, preferably from 0.3 to 1.0, and more preferably from 0.2 to 0.5. Another suitable coating material that provides product stability comprises sodium citrate and/or sodium metasilicate, having a SiO ₂ :Na ₂ O ratio of from 1.8:1 to 3.0:1, preferably from 1.8:1 to 2.4:1, It is preferably applied in an amount of 2% to 10% (usually 3% to 5%) of SiO ₂ based on the weight of the inorganic perhydrate salt, such as potassium monooxysulfate. Other coatings containing magnesium citrate, citrate and borate, citrate and boric acid, waxes, oils and fatty soaps may also be advantageously employed.

The organic bleaching agent may comprise an organic peroxyacid containing a dimercapto and a tetradecyl peroxide, especially a diperoxydodecanolic acid, a diperoxytetradecanoic acid, and a diperoxyhexadecanolic acid. . The benzhydryl peroxide is the preferred organic peroxyacid herein. The dimercapto peroxide, especially the benzhydryl peroxide, may preferably have a weight average of from about 0.1 micron to about 100 microns, preferably from about 0.5 microns to about 30 microns, more preferably from about 1 micron to about 10 microns. The presence of particles in the form of diameter. Preferably, at least about 25% to 100%, more preferably at least about 50%, even more preferably at least about 75%, and most preferably at least about 90% of the particles are less than 10 microns, preferably less than 6 microns.

Other organic bleaching agents comprise peroxyacids, specific examples being alkyl peroxyacids and aryl peroxyacids. Preferred representatives are: (a) peroxybenzoic acid and its cyclic substituted derivatives, such as alkyl peroxybenzenes Formic acid and peroxy-α-naphthoic acid and magnesium monoperoxyphthalate; (b) aliphatic or substituted aliphatic peroxyacids such as peroxylauric acid, peroxystearic acid, ε-benzoic acid醯imino peroxyhexanoic acid [phthalimido peroxyhexanoic acid (PAP)], o-carboxybenzylidene peroxyhexanoic acid, N-nonenylamino perhexane acid, and N - decylamino peroxysuccinate; and aliphatic and araliphatic peroxydicarboxylic acids such as 1,12-diperoxyformic acid, 1,9-diperoxydicarboxylic acid, diperoxane Diacid, diperoxytridecanedioic acid, diperoxyphthalic acid, 2-mercaptodiperoxybutane-1,4-dibasic acid, N,N-p-xylylenediamine 6-amino perhexanoic acid)

The bleach activator may comprise an organic peracid precursor that enhances bleaching during cleaning at temperatures of 60 ° C and lower. Bleach activators suitable for use herein comprise an aliphatic peroxycarboxylic acid preferably having from 1 to 10 carbon atoms, specifically 2 to 4 carbon atoms, and/or optionally substituted under perhydrolysis conditions. A compound of perbenzoic acid. Suitable materials carry O-fluorenyl and/or N-fluorenyl groups having the specified number of carbon atoms and/or optionally substituted benzamidine groups. Preferably, it is a polyalkylene diamine, specifically tetraethylene ethylenediamine (TAED); Derivatives, specifically 1,5-diethylindenyl-2,4-dihydroxy hexahydro-1,3,5-tri (DADHT); deuterated glycoluril, specifically tetraethylene glycol urea (TAGU); N-propylene amide, specifically N-mercaptobutyl quinone imine (NOSI); deuterated phenol sulfonate , in particular, n-decyl- or isodecyloxybenzenesulfonate (n- or iso-NOBS); carboxylic anhydride, specifically phthalic anhydride; deuterated polyol, specifically three Glyceryl acetate, ethylene glycol diacetate and 2,5-diethoxycarbonyl-2,5-dihydrofuran and ethyl triethyl citrate (TEAC).

Preferred bleach catalysts for use in the detergent compositions herein comprise manganese triazacyclononane and related complexes (US-4,246,612, US-A-5,227,084); Co, Cu, Mn and Fe bispyridinium And related complexes (US-5,114,611); and pentamine cobalt (III) and related errors Compound (US-4,810,410). A full description of a bleach catalyst suitable for use herein can be found in U.S. Patent No. 6,599,871, incorporated herein by reference.

dish detergent

Preferred surfactants for use in automatic dishwashing detergents are themselves low foaming or combined with other components such as suds suppressors. Preferred for use herein are low cloud point and high cloud point nonionic surfactants and mixtures thereof, comprising nonionic alkoxylated surfactants (especially ethoxylates derived from C ₆ -C ₁₈ primary alcohols) Ethoxylated-propoxylated alcohols (eg, POLY-TERGENT® SLF18 from Olin Corporation), epoxy-terminated poly(alkoxylated) alcohols (eg, Olympian POLY-) TERGENT® SLF18B - see WO-A-94/22800), ether terminated poly(alkoxylated) alcohol surfactants, and block polyoxyethylene-polyoxypropylene polymer compounds such as Wyandotte, Michigan PLURONIC®, REVERSED PLURONIC® and TETRONIC® from BASF-Wyandotte Corp. (Wyandotte, Michigan); amphoteric surfactants such as C ₁₂ -C ₂₀ alkylamine oxides (for use herein) preferred amine oxide comprises lauryl dimethylamine oxide and hexadecyl dimethyl amine oxide), and alkyl carboxyl amphoteric surfactants, such as MIRANOL ^TM C2M; and zwitterionic surfactants, such as Betaine and sultaine; and mixtures thereof. Surfactants suitable for use herein are disclosed, for example, in US-A-3, 929, 678, US-A-4, 259, 217, EP-A-0414 549, WO-A-93/08876, and WO-A-93/08874. The surfactant may be present at a level of from about 0.2% to about 30% by weight, more preferably from about 0.5% to about 10% by weight, most preferably from about 1% to about 5% by weight, based on the weight of the detergent composition.

Other compositions and additives

Builders suitable for use in the detergent compositions described herein comprise water soluble builders The agent comprises citrate, carbonate, citrate and polyphosphate, such as sodium tripolyphosphate and sodium tripolyphosphate hexahydrate, potassium tripolyphosphate and mixed sodium tripolyphosphate and potassium tripolyphosphate.

The home care composition can include an enzyme. Examples of suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, mannans Enzyme, pectin lyase, keratinase, reductase, oxidase, phenol oxidase, lipoxygenase, ligninase, pullulanase, tannase, pentosanase, malanase, ß- Glucanase, arabinosidase, hyaluronanase, chondroitinase, laccase, and amylase, or mixtures thereof. A typical combination is an enzyme mixture which may include, for example, a protease and lipase as well as an amylase. When present in a home care composition, the other enzymes described above may be present at a level of from about 0.00001% to about 2%, from about 0.0001% to about 1%, or even from about 0.001% to about 0.5%, by weight of the composition of the enzyme protein. .

Enzymes suitable for use in the detergent compositions described herein comprise bacterial and fungal cellulases, including CAREZYME and CELLUZYME (Novo Nordisk A/S); peroxidase; lipase, including AMANO-P (Amano Pharmaceutical Co.), M1 LIPASE and LIPOMAX (Gist-Brocades) and LIPOLASE and LIPOLASE ULTRA; cutinase; protease, including ESPERASE , ALCALASE, DURAZYM and SAVINASE (Norwe) and MAXATASE, MAXACAL, PROPERASE and MAXAPEM (Gist-Bucades); alpha and beta amylases, including PURAFECT OX AM (Genencor) and TERMAMYL , BAN, FUNGAMYL, DURAMYL, and NATALASE; pectinase; and mixtures thereof. The enzyme may be added herein in the form of pellets, granules or co-granules in an amount generally ranging from about 0.0001% to about 2% pure enzyme by weight of the cleaning composition.

Enzymes used in home care compositions can be stabilized by a variety of techniques. The enzymes employed herein can be stabilized by the presence of a water soluble source of such ions in finishing fabrics and home care products that provide calcium and/or magnesium ions to the enzyme. In the case of aqueous consumer products including proteases, a reversible protease inhibitor, such as a peptide aldehyde; or a boron compound, comprising a borate ester, 4-methylmercaptophenylboronic acid, phenylboronic acid, and derivatives thereof; or a compound, may be added. Such as calcium formate, sodium formate and 1,2-propanediol to additionally improve stability.

The composition can include a fabric colorant. Suitable fabric colorants include dyes, dye-clay conjugates, and pigments. Suitable include small molecule dyes and polymeric dyes. Suitable small molecule dyes comprise small molecule dyes selected from the group consisting of: direct blue, direct red, direct violet, acid blue, acid red acid violet, basic blue, basic violet and basic red. Color index (CI) classified dyes or mixtures thereof. Preferred dyes include alkoxylated azothiene, solvent violet 13, acid violet 50 and direct violet 9.

The composition can include an encapsulate. In one aspect, the encapsulant includes a core, a shell having an inner surface and an outer surface, the shell encapsulating the core. The core can include spices. The shell layer may comprise melamine formaldehyde and/or crosslinked melamine formaldehyde. The shell layer can comprise a polyacrylate polymer.

Suitable encapsulants can include a core material and a shell layer that at least partially surrounds the core material. At least 75%, 85% or even 90% of the encapsulate may have from about 0.2 MPa to about 10 MPa, from about 0.4 MPa to about 5 MPa, from about 0.6 MPa to about 3.5 MPa or even about A breaking strength of 0.7 MPa to about 3 MPa; and 0% to about 30%, 0% to about 20% or even 0% to about 5% of the benefit agent leakage. In one aspect, at least 75%, 85%, or even 90% of the encapsulant can have from about 1 micron to about 80 microns, from about 5 microns to 60 microns, from about 10 microns to about 50. Micron or even a particle size of from about 15 microns to about 40 microns. In one aspect, at least 75%, 85%, or even 90% of the encapsulate can have from about 30 nanometers to about 250 nanometers, from about 80 nanometers to about 180 nanometers, or even about 100 nanometers to A particle wall thickness of about 160 nm.

In one aspect, the core material of the encapsulant may comprise a material selected from the group consisting of perfume raw materials and/or a material selected from the group consisting of vegetable oil, including pure and/or Blended with vegetable oils, including castor oil, coconut oil, cottonseed oil, grape seed oil, rapeseed, soybean oil, corn oil, palm oil, linseed oil, safflower oil, olive oil, peanut oil, coconut oil, palm kernel oil, alfalfa Sesame oil, lemon oil and mixtures thereof; esters and esters of vegetable oils, including dibutyl adipate, dibutyl phthalate, butyl phthalate, octyl benzoate, octyl phosphate Toluene ester, trioctyl phosphate, and mixtures thereof; linear or branched hydrocarbons, including straight or branched chain hydrocarbons having a boiling point greater than about 80 ° C; partially hydrogenated terphenyls, dialkyl phthalates , alkyl biphenyl (including monopropyl propyl biphenyl), alkylated naphthalene (including dipropyl naphthalene), petroleum spirit (including kerosene), mineral oil and mixtures thereof; aromatic solvent comprising benzene, toluene and a mixture; an oxime oil; and a mixture thereof.

The composition may also include a deposition aid, preferably consisting of a population comprising cationic or nonionic polymers. Suitable polymers include cationic starch, cationic hydroxyethyl cellulose, polyvinyl formal, locust bean gum, mannan, xyloglucan, tamarind, polyethylene terephthalate and methyl groups. The polymer of dimethylaminoethyl acrylate, as the case may be, has one or a monomer selected from the group consisting of acrylic acid and acrylamide.

Foam inhibitors suitable for use in the detergent compositions described herein comprise a nonionic surfactant having a low cloud point. As used herein, "cloud point" is a well-known property of nonionic surfactants which is a result of surfactants becoming less soluble as temperature increases. The temperature at which the second phase is observed is called the "cloud point". As used herein, a "low cloud point" nonionic surfactant is defined as a non-cloud having a cloud point of less than 30 ° C, preferably less than about 20 ° C and even more preferably less than about 10 ° C and most preferably less than about 7.5 ° C. Ionic surfactant system components. Low cloud point nonionic surfactants may comprise nonionic alkoxylated surfactants, especially ethoxylates derived from primary alcohols, and polyoxypropylene/polyoxyethylene/polyoxypropylene (PO/EO/PO) ) Reverse block polymer. Additionally, such low cloud point nonionic surfactants may comprise, for example, ethoxylated-propoxylated alcohols (eg, BASF POLY-TERGENT SLF18) and epoxy terminated poly(alkoxylated) alcohols (eg, BASF) A nonionic agent of the POLY-TERGENT SLF18B series, as described, for example, in US-A-5,576,281).

Other suitable components for use in the cleaning or home care compositions described herein include cleaning polymers having anti-redeposition, antifouling or other cleaning characteristics. The anti-redeposition polymer used herein comprises acrylic acid-containing polymers such as SOKALAN PA30, PA20, PA15, PA10 and SOKALAN CP10 (BASF Co., Ltd.), ACUSOL 45N, 480N, 460N (Rohm and Haas). ), acrylic acid/cis-maleic acid copolymers such as SOKALAN CP5 and acrylic acid/methacrylic acid copolymers. The home care composition can include an amphiphilic alkoxylated grease cleaning polymer having balanced hydrophilic and hydrophobic properties to remove grease particles from the fabric and surface. Particular embodiments of the amphiphilic alkoxylated grease cleaning polymer of the present invention comprise a core structure and a plurality of alkoxylated groups attached to the core structure. Suitable polymers include amine polymers such as alkoxylated polyalkylenimines (eg, PEI600 EO20 and/or ethoxylated hexamethylenediamine dimethyl quaternary ammonium compounds), which may optionally be passed through four stages. Ammonium. Other polymers comprise alkoxylated polyalkyleneimines having an internal polyethylene oxide block and an outer polypropylene oxide block. Other suitable polymers include amine polymers, Such as alkoxylated polyalkylenimines (such as PEI600 EO20 and / or ethoxylated hexamethylene diamine dimethyl quaternary ammonium compounds), which may optionally be quaternized. Antifouling polymers for use herein include alkyl and hydroxyalkyl celluloses (US-A-4,000,093), polyoxyethylene, polyoxypropylene, and copolymers thereof, and based on ethylene glycol, propylene glycol, and mixtures thereof. Nonionic and anionic polymers of phthalates.

The structured liquid can be internally structured whereby the structure is formed from a primary component (eg, a surfactant material) and/or a three dimensional matrix is provided by the use of secondary components (eg, polymer, clay, and/or silicate materials) The structure is externally structured. The composition may comprise a structurant, preferably from 0.01% to 5% by weight, from 0.1% to 2.0% by weight of the structurant. The structurant is usually selected from the group consisting of diglycerides and triglycerides, ethylene glycol distearate, microcrystalline cellulose, cellulose based materials, microfiber cellulose, hydrophobic Sexually modified alkali swellable emulsions (such as Polygel W30 (3V Sigma)), biopolymers, sansonic gum, gellan gum, and mixtures thereof. Suitable structurants include hydrogenated castor oil and its non-ethoxylated derivatives. Suitable structurants are disclosed in U.S. Patent No. 6,855,680. Such structurants have a thread-like structural system having a series of aspect ratios. Other suitable structurants and methods for their manufacture are described in WO2010/034736.

Heavy metal chelators and crystal growth inhibitors are also suitable for use in detergents, such as diethyltriamine penta (methylene phosphonate), ethylenediaminetetrakis (methylenephosphonate) hexamethylene diamine (Asian) Methyl phosphonate), ethylene diphosphate, hydroxy-ethylene-1,1-diphosphate, nitrogen triacetate, ethylenediaminetetraacetate, ethylenediamine-N, N'-di Succinate, which is in the form of a salt and a free acid.

Also suitable for use in the detergent compositions described herein is a corrosion inhibitor, such as an organic silver coating agent (especially paraffin wax, such as Wintersboro, Salzbergen, Germany). WINOG 70) sold by Wintershall, Salzbergen, Germany, nitrogen-containing corrosion inhibitor compounds (such as benzotriazole and benzimidazole - see GB-A-1137741) and Mn(II) compounds, specifically organic coordination Mn(II) salt of the body.

Other suitable components for use in the detergent compositions herein include enzyme stabilizers such as calcium ions, boric acid, and propylene glycol.

Suitable rinse additives are known in the art. Commercial rinse aids for dishwashing are typically mixtures of low foaming fatty alcohol polyethylene/polypropylene glycol ethers, solubilizers (such as cumene sulfonate), organic acids (such as citric acid), and solvents (such as ethanol). . The function of such a rinse aid is to influence the interfacial tension of the water, in such a way that it can be discharged from the rinse surface in the form of a thin continuous film so that no water droplets, streaks or film retention after the subsequent drying process. European Patent 0 197 434 B1 describes a rinse aid comprising a mixed ether as a surfactant. Flushing additives such as fabric softeners and the like are also contemplated and are suitable for encapsulation in a film according to the invention herein.

Instructions

The films and articles described herein, as well as compositions contained therein, can be used to treat substrates, such as woven or hard surfaces, for example, by contacting the substrate with a film, article, and/or composition contained therein. The contacting step can be carried out manually or in an automatic machine, such as an automatic (top mounted or front mounted) washing machine or an automatic dishwasher. The contacting step can be carried out in the presence of water, which can be at most about 80 ° C, or at most about 60 ° C, or at most about 40 ° C, or at most about 30 ° C, or at most about 20 ° C, or at most about 15 ° C. Or at a temperature of up to about 10 ° C, or up to about 5 ° C. As indicated above, the films and articles of the invention made therefrom are particularly suitable for cold water dissolution and thus provide benefits in cold water washing (e.g., from about 1 ° C to about 30 ° C, or from about 5 ° C to about 20 ° C). Contact step This can be followed by a multiple rinse cycle or even a single rinse cycle; because the film has good solubility characteristics, less water is needed to dissolve the film and/or release the contents contained therein.

Specific aspects of the invention are described herein in the following numbered paragraphs.

A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 20 ° C a lower 4% solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a second 4% solution viscosity (μ ₂ ) at 20 ° C; wherein: the absolute viscosity difference of the first PVOH copolymer and the second PVOH polymer | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise, and The first PVOH copolymer is present in an amount ranging from about 30% to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film.

2. The water soluble film of paragraph 1, wherein the second PVOH polymer is present in an amount ranging from about 10% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film.

3. The water soluble film of any of paragraphs 1 or 2, wherein the anionic monomer unit is in the range of from about 1.0 mol% to about 4.2 mol% of the total PVOH polymer and PVOH copolymer in the film. The amount is present in the film.

4. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, said first PVOH copolymer having a first 20 ° C a lower 4% solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a second 4% solution viscosity (μ ₂ ) at 20 ° C; wherein: the absolute viscosity difference of the first PVOH copolymer and the second PVOH polymer | μ ₂ -μ ₁ | in the range of 0 centipoise to about 10 centipoise, and The anionic monomer units are present in the film in an amount ranging from about 1.0 mole percent to about 4.2 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The water-soluble film according to any one of the preceding claims, wherein the anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, maleic acid monoalkyl ester , maleic acid dialkyl ester, maleic acid monomethyl ester, dimethyl maleate, maleic anhydride, fumaric acid, fumaric acid monoalkyl ester, anti Dialkyl methacrylate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, Itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2-acrylamido-1-methylpropane sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, 2 - methacrylamido-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof.

The water-soluble film according to any of the preceding claims, wherein the anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof.

The water-soluble film according to any of the preceding claims, wherein the anionic monomer is selected from the group consisting of maleic acid monomethyl ester, alkali metal salt thereof, and combinations thereof.

The water soluble film of any of the preceding paragraphs, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 2 mole % to about 10 mole %.

9. The water soluble film of paragraph 8, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 5 mole percent to about 10 mole percent.

10. The water soluble film of paragraph 9, wherein the anionic monomer unit is present in an amount ranging from about 3 mole percent to about 4.2 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The water soluble film of any of the preceding paragraphs, wherein the PVOH resin blend consists essentially of the first PVOH copolymer and the second PVOH polymer.

The water-soluble film according to any of the preceding claims, wherein the difference in viscosity (μ ₂ -μ ₁ ) between the first PVOH copolymer and the second PVOH polymer is in the range of from about 0 centipoise to about 10 centipoise. .

The water soluble film of any of the preceding paragraphs, wherein the first viscosity μ _{1 is} in the range of from about 4 centipoise to about 24 centipoise.

The water soluble film of any of the preceding paragraphs, wherein the second viscosity μ _{2 is} in the range of from about 4 centipoise to about 24 centipoise.

The water-soluble film according to any of the preceding claims, wherein the water-soluble film has a residual value of about 45% by weight or less by 45% by weight as measured by a dissolution chamber test.

The water soluble film of any of the preceding paragraphs, wherein the first PVOH copolymer and the second PVOH polymer each independently have a degree of hydrolysis in the range of from about 75% to about 99%.

The water soluble film of any of the preceding paragraphs, wherein the PVOH resin blend comprises a third PVOH polymer.

The water-soluble film according to any of the preceding claims, wherein the water-soluble film further comprises at least one third water-soluble polymer other than a PVOH polymer.

19. The water soluble film of paragraph 18, wherein the third water soluble polymer is selected from the group consisting of: polyethylenediamine, polyvinylpyrrolidone, polyoxyalkylene, polypropylene oxime Amine, cellulose ether, cellulose ester, cellulose decylamine, polyvinyl acetate, polyamine, gelatin, methyl cellulose, carboxymethyl cellulose and its salts, dextrin, ethyl cellulose, hydroxyethyl Cellulose, hydroxypropyl methylcellulose, maltodextrin, starch, modified starch, guar gum, gum arabic, sambag, carrageenan, polyacrylate and its salts, copolymers thereof, Blends thereof and combinations thereof.

The water-soluble film according to any of the preceding claims, wherein the water-soluble film further comprises one or more selected from the group consisting of: a plasticizer, a plasticizer compatibilizer , lubricants, mold release agents, fillers, extenders, crosslinkers, anti-caking agents, antioxidants, anti-sticking agents, antifoaming agents, nanoparticles, bleaches, surfactants, and combinations thereof.

The water soluble film of any of the preceding paragraphs, wherein the water soluble film further comprises one or more plasticizers in an amount ranging from about 1% to about 40% by weight of the film.

22. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, said first PVOH copolymer having a first 20 ° C a lower 4% solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a temperature of about 20 4% solution viscosity (μ ₂ ) at a second 20 ° C centipoise or less than 20 centipoise; wherein: the first PVOH copolymer is from about 30% to about 90% by weight of the total PVOH polymer and copolymer in the film An amount in the range of % is present (e.g., wherein the water soluble film or component thereof can be combined with any of the improvements from the preceding paragraphs).

23. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 20 ° C a lower 4% solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a temperature of about 20 4% solution viscosity (μ ₂ ) at a second 20 ° C centipoise or less than 20 centipoise; wherein: the anionic monomer unit is from about 1.0 mol% to about 4.2 mol of the total PVOH polymer and copolymer in the film An amount in the range of % of the ear is present in the film (e.g., wherein the water soluble film or component thereof can be combined with any of the improvements from the preceding paragraphs).

24. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit; and a predominantly vinyl alcohol monomer unit and optionally A second PVOH polymer composed of vinyl acetate monomer units; wherein the first PVOH copolymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and copolymer in the film.

25. The water soluble film of paragraph 24, wherein the second PVOH polymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film.

The water-soluble film of paragraph 24 or paragraph 25, wherein the first anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, maleic acid monoalkyl ester, Dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, monoalkyl fumarate, reversed Dialkyl enedomate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, clothing Acetic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2-acrylamido-1-methylpropane sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, 2- Methacrylamide Alkyl-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof.

The water-soluble film according to any one of paragraphs 24 to 26, wherein the first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid and an alkali metal thereof. Salt and combinations thereof.

The water soluble film of any of paragraphs 24 to 27, wherein the first anionic monomer is present in an amount of less than about 3 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The water soluble film of any of paragraphs 24 to 28, wherein the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C within about 10 centipoise of each other. .

The water soluble film of any of paragraphs 24 to 29, wherein the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C separated from each other by greater than about 10 centipoise. .

The water soluble film of any of paragraphs 24 to 30, wherein the first PVOH copolymer has a first anionic monomer unit in the range of from about 3 mole % to about 5 mole % The first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer is a total PVOH polymer and PVOH in the film. An amount in the range of from about 1 mole % to about 3 mole % of the copolymer; the first PVOH copolymer being in the range of from about 40% by weight to about 60% by weight of the total PVOH polymer and PVOH copolymer in the film The amount is present; the second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of from about 8 centipoise to about 16 centipoise; and the second PVOH polymer is total PVOH in the film The polymer and PVOH copolymer are present in an amount ranging from about 40% to about 60% by weight.

The water soluble film of any of paragraphs 24 to 30, wherein the first PVOH copolymer has a first anionic monomer unit in the range of from about 3 mole % to about 5 mole % The first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer is a total PVOH polymer and PVOH in the film. An amount in the range of from about 1 mol% to about 3 mol% of the copolymer is present; the first PVOH copolymer is in the range of from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film The second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of about 20 centipoise to about 30 centipoise; and the second PVOH polymer is a total PVOH polymer and PVOH copolymer in the film. An amount ranging from about 30% by weight to about 70% by weight is present.

The water soluble film of any of paragraphs 24 to 32, wherein the water soluble film has a residual value of about 48% by weight or less by 48% by weight as measured by a dissolution chamber test.

The water soluble film of any of paragraphs 24 to 33, wherein the water soluble film has an average tensile strength value of at least about 33 MPa as measured by a tensile strength test.

The water soluble film of any of paragraphs 24 to 34, wherein the water soluble film has a modulus value of at least about 12 N/mm 2 as measured by a modulus test.

36. An article comprising: the water soluble film of any of the preceding paragraphs in the form of a pouch defining an inner pouch volume.

37. The article of paragraph 24, further comprising an inner pouch included The composition in the volume.

38. An article comprising: the water soluble film of any of the preceding paragraphs and a home care composition proximate the film.

1A. An article comprising a water soluble film and a home care composition proximate to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first comprising an anionic monomer unit a PVOH copolymer having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and a composition consisting essentially of vinyl alcohol monomer units and optionally vinyl acetate monomer units a second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: an absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer | μ ₂ - μ ₁ | is in the range of from 0 centipoise to about 10 centipoise, and the first PVOH copolymer is present in an amount ranging from about 30% by weight to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film.

The article of paragraph 1A, wherein the second PVOH polymer is present in an amount ranging from about 10% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film.

The article of any of paragraphs 1A or 2, wherein the anionic monomer unit is in an amount ranging from about 1.0 mol% to about 4.2 mol% of the total PVOH polymer and PVOH copolymer in the film. Present in the film.

4A. An article comprising a water soluble film and a home care composition, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, The first PVOH copolymer has a first 4% solution viscosity (μ ₁ ) at 20 ° C; and a second PVOH polymer consisting mainly of vinyl alcohol monomer units and optionally vinyl acetate monomer units The second PVOH polymer has a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer is |μ ₂ -μ ₁ | From 0 centipoise to about 10 centipoise, the anionic monomer units are present in the film in an amount ranging from about 1.0 mole percent to about 4.2 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The article according to any of the preceding claims, wherein the anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, maleic acid monoalkyl ester, butene Dialkyl diacid, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, monoalkyl fumarate, fumaric acid Dialkyl ester, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, Vinylsulfonic acid, allylsulfonic acid, vinylsulfonic acid, 2-acrylamido-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methylpropene Amidino-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof.

The article of any of the preceding claims, wherein the anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, alkali metal salts thereof, and combinations thereof.

The article of any of the preceding claims, wherein the anionic monomer is selected from the group consisting of maleic acid monomethyl ester, alkali metal salts thereof, and combinations thereof.

The article of any of the preceding claims, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 2 mole % to about 10 mole %.

9A. The article of paragraph 8A, wherein the anionic monomer unit is about 5 mo An amount ranging from about 1 to about 10 mole percent of the ear is present in the first PVOH copolymer.

10A. The article of paragraph 9A, wherein the anionic monomer unit is present in an amount ranging from about 3 mole % to about 4.2 mole % of the total PVOH polymer and PVOH copolymer in the film.

The article of any of the preceding claims, wherein the PVOH resin blend consists essentially of the first PVOH copolymer and the second PVOH polymer.

The article of any of the preceding claims, wherein the difference in viscosity (μ ₂ -μ ₁ ) between the first PVOH copolymer and the second PVOH polymer is in the range of from about 0 centipoise to about 10 centipoise.

The article of any of the preceding claims, wherein the first viscosity μ _{1 is} in the range of from about 4 centipoise to about 24 centipoise.

The article of any of the preceding claims, wherein the second viscosity μ _{2 is} in the range of from about 4 centipoise to about 24 centipoise.

The article of any of the preceding claims, wherein the water soluble film has a residual value of about 45% by weight or less by 45% by weight as measured by a dissolution chamber test.

The article of any of the preceding claims, wherein the first PVOH copolymer and the second PVOH polymer each independently have a degree of hydrolysis in the range of from about 75% to about 99%.

The article of any of the preceding claims, wherein the PVOH resin blend comprises a third PVOH polymer.

The article of any of the preceding claims, wherein the water soluble film further comprises at least one third water soluble polymer other than a PVOH polymer.

The article of paragraph 18A, wherein the third water soluble polymer Selected from the group consisting of: polyethylenediamine, polyvinylpyrrolidone, polyoxyalkylene, polyacrylamide, cellulose ether, cellulose ester, cellulose decylamine, polyvinyl acetate, poly Indamine, gelatin, methyl cellulose, carboxymethyl cellulose and its salts, dextrin, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, maltodextrin, starch, modified Starch, guar gum, gum arabic, tricyon gum, carrageenan, polyacrylates and salts thereof, copolymers thereof, blends thereof, and combinations thereof.

The article of any of the preceding claims, wherein the water soluble film further comprises one or more selected from the group consisting of: a plasticizer, a plasticizer compatibilizer, a lubricant, a release agent. Molding agents, fillers, extenders, crosslinkers, anti-caking agents, antioxidants, anti-sticking agents, antifoaming agents, nanoparticles, bleaches, surfactants, and combinations thereof.

The water soluble film of any of the preceding paragraphs, wherein the water soluble film further comprises one or more plasticizers in an amount ranging from about 1% to about 40% by weight of the film.

22A. An article comprising a water soluble film and a home care composition proximate to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first comprising an anionic monomer unit a PVOH copolymer having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and a composition consisting essentially of vinyl alcohol monomer units and optionally vinyl acetate monomer units a second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less and 20 centipoise; wherein: the first PVOH copolymer is in the film The total PVOH polymer and copolymer are present in an amount ranging from about 30% to about 90% by weight (e.g., wherein the water soluble film or component thereof can be combined with any of the improvements from the preceding paragraphs).

23A. An article comprising a water soluble film and a home care composition proximate to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first comprising an anionic monomer unit a PVOH copolymer having a first 4% solution viscosity (μ ₁ ) at 20 ° C; and a composition consisting essentially of vinyl alcohol monomer units and optionally vinyl acetate monomer units a second PVOH polymer having a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less and 20 centipoise; wherein: the anionic monomer unit is in the film An amount in the range of from about 1.2 mole percent to about 4.2 mole percent of the total PVOH polymer and copolymer is present in the film (eg, wherein the water soluble film or component thereof can be combined with any of the improvements from the preceding paragraphs) ).

24A. An article comprising a water soluble film and a home care composition proximate to the film, wherein the film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first comprising an anionic monomer unit a PVOH copolymer; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit; wherein the first PVOH copolymer is a total PVOH polymer and copolymer in the film An amount in the range of from about 30% by weight to about 70% by weight is present in the film.

The article of paragraph 24A, wherein the second PVOH polymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film.

The article of paragraph 24A or paragraph 25A, wherein the first anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, maleic acid monoalkyl ester, cis-butane Dialkyl enedomate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, monoalkyl fumarate, fubutene Acid dialkyl ester, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, itaconic acid Methyl ester, dimethyl itaconate, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2-acrylamido-1-methylpropane sulfonic acid, 2-propenyl amide 2-methylpropanesulfonic acid, 2-methylpropenylamino-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof.

The article of any of paragraphs 24A to 26A, wherein the first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and Its combination.

The article of any of paragraphs 24A to 27A, wherein the first anionic monomer is present in an amount of less than about 3 mole percent of the total PVOH polymer and PVOH copolymer in the film.

The article of any of paragraphs 24A to 28A, wherein the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C within about 10 centipoise of each other.

The article of any of paragraphs 24A to 29A, wherein the first PVOH copolymer and the second PVOH polymer have a 4% solution viscosity value at 20 ° C separated from each other by greater than about 10 centipoise.

The article of any of paragraphs 24A to 30A, wherein: the first PVOH copolymer has a first anionic monomer unit incorporation content ranging from about 3 mole% to about 5 mole%; The first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer is a total PVOH polymer and a PVOH copolymer in the film. An amount ranging from about 1 mole % to about 3 mole %; the first PVOH copolymer is from about 40% by weight of the total PVOH polymer and PVOH copolymer in the film to about An amount in the range of 60% by weight is present; the second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of from about 8 centipoise to about 16 centipoise; and the second PVOH polymer is total PVOH in the film The polymer and PVOH copolymer are present in an amount ranging from about 40% to about 60% by weight.

The article of any of paragraphs 24A to 30A, wherein: the first PVOH copolymer has a first anionic monomer unit incorporation content ranging from about 3 mole% to about 5 mole%; The first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer is a total PVOH polymer and a PVOH copolymer in the film. An amount ranging from about 1 mole % to about 3 mole % is present; the first PVOH copolymer is present in an amount ranging from about 30% by weight to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film The second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of from about 20 centipoise to about 30 centipoise; and the second PVOH polymer is about the total PVOH polymer and PVOH copolymer in the film. An amount in the range of from 30% by weight to about 70% by weight is present.

The article of any of paragraphs 24A to 32A, wherein the water soluble film has a residual value of about 48% by weight or less by 48% by weight as measured by a dissolution chamber test.

The article of any of paragraphs 24A to 33A, wherein the water soluble film has an average tensile strength value of at least about 33 MPa as measured by a tensile strength test.

The article of any of paragraphs 24A to 34A, wherein the water soluble film has a modulus value of at least about 12 N/mm 2 as measured by a modulus test.

36A. The article of any of paragraphs 1A to 35A, wherein The court care composition is in contact with the film.

The article of any of paragraphs 1A to 36, wherein the article is in the form of a pouch comprising at least one sealed compartment.

The article of paragraph 37A, wherein the at least one compartment comprises at least one wall, wherein the at least one wall comprises a water soluble film.

39A. The article of paragraphs 37A to 38A, wherein the pouch comprises at least two compartments.

40A. The article of paragraph 39A, wherein the second compartment is superimposed on the first compartment.

The article of paragraph 37A, wherein the pouch comprises at least three compartments.

42A. The article of paragraph 41, wherein the second compartment and the third compartment are superimposed on the first compartment.

The article of any of paragraphs 37A to 42A, wherein the household composition is contained in at least one compartment.

The article of any of paragraphs 1A to 43A, wherein the home care composition is selected from the group consisting of: a light liquid cleanser composition, a heavy duty liquid cleanser composition, a hard surface cleaning combination Detergent gels, bleaching compositions, laundry additives, fabric enhancer compositions, shampoos, body washes, other personal care compositions, and mixtures thereof, commonly used in laundry.

The article of any of paragraphs 1A to 44A, wherein the composition comprises a surfactant.

The article of any of paragraphs 1A to 45A, wherein the composition is in the form of a liquid, a solid, a powder, or a mixture thereof.

47A. A method of forming an article of any of the preceding clauses, wherein the method comprises the steps of: providing a film, wherein the film defines an inner pouch container volume; filling the container volume with a home care composition; The membrane is sealed to form a sealed compartment, wherein the sealed compartment contains the composition.

48A. A method of processing a substrate, wherein the method comprises the step of contacting the substrate with the article of any of paragraphs 1A to 46A or a composition contained therein, the contact being typically in the presence of water under.

Dissolution chamber residual test

A water soluble membrane characterized by the undissolved residue tested according to the dissolution chamber (DC) or to be tested is analyzed using the following materials: 1. Beaker (4000 ml) 2. Stainless steel scrubber (3.5" (88.9 Mm) OD, 1.875" ID (47.6 mm), 0.125" (3.18 mm) thick); 3. Styrene-butadiene rubber gasket (3.375" (85.7 mm) OD, 1.91" ID (48.5 mm), 0.125" Thick (3.18 mm)); 4. Stainless steel screen (3.0" (76.2 mm) OD, 200 x 200 grid, 0.0021" (0.053 mm) screen OD, 304SS stainless steel wire cloth); 5. Thermometer (0 ° C to 100 ° C, accurate to +/- 1 ° C); 6. Cutting punch (1.5" (38.1 mm) diameter); 7. Timer (accurate to the second); 8. Reverse osmosis (RO) water; 9. Binding clip (size 5 or equivalent); 10. Aluminum plate (2.0" (50.8 mm) OD); and 11. Ultrasonic generator.

For each membrane to be tested, three test specimens were cut from a selected test membrane having a thickness of 3.0 mils ± 0.10 mils (or 76.2 micrometers ± 2.5 micrometers) using a cutting punch. If cut from a film frame strip, the sample should be cut from the area of the frame that is evenly spaced along the lateral direction of the frame strip. The following procedures were then used to analyze each test sample:

1. Weigh the membrane specimen and track the specimen throughout the test. The initial film weight (F _o ) was recorded.

2. Weigh a set of two sonicated, cleaned and dried screens for each specimen and track them throughout the test. The initial screen weight was recorded (collectively referred to as S _o for the two combined screens).

3. Assemble the membrane specimen by flatly encasing the membrane specimen between two screens, followed by two rubber gaskets (one gasket on each side between the screen and the gasket) and then the center of the two scrubbers The specimen dissolves the chamber.

4. The dissolution chamber assembly is secured by four staple clips evenly spaced around the scrubber and the clips are folded back.

5. Fill the beaker with 1,500 ml of reverse osmosis water at room temperature (72 °F +/- 3 °F, 22 ° +/- 2 °C) and record room temperature.

6. Set the timer to the specified immersion time of 5 minutes.

7. Place the dissolution chamber assembly into the beaker and immediately start the timer to insert the dissolution chamber assembly into the water surface at a substantially 45 degree entry angle. This entry angle helps remove air bubbles from the chamber. Dissolution chamber The assembly was placed at the bottom of the beaker so that the test sample film was placed horizontally about 10 mm from the bottom. The four rearwardly folded binders of the dissolution chamber assembly are adapted to maintain a membrane gap of about 10 millimeters from the bottom of the beaker, however, any other equivalent support means can be used.

8. Slowly remove the dissolution chamber assembly from the beaker at approximately a 45 degree angle after the specified immersion time of 5 minutes has been specified.

9. Maintain the dissolution chamber assembly horizontally above the aluminum pan to grasp any drip from the screen and carefully remove the binder, scrubber, and gasket. Do not open the screen of the bag.

10. Place the screen of the wrapper (i.e., the screen/residual undissolved film/screen) on an aluminum pan and in an oven at 100 ° C for 30 minutes to dry.

11. Weigh the screen of the drying set containing any residual undissolved film. Any dry film drip that was captured and recovered from the pan (eg, by scraping) the disc was measured during the first removal of the dissolution chamber assembly from the beaker and during drying and added to the dry screen weight. Record weight of the final screen sandwiched (collectively referred to as S _f, dried film comprising dripping).

12. Calculate the % residue of the membrane specimen residue ("DC residue"): DC residue % = 100 × ((S _{f -} S _o ) / F _o ).

13. Clean the sandwiched mesh by soaking it in a beaker of RO water for about 20 minutes. Subsequently, it is disassembled and subjected to a final rinse in an ultrasonic generator (opened and filled with RO water) for at least 5 minutes or until no residue is visible on the screen.

Suitable characteristics of the water-soluble film according to the invention are characterized by about 45% by weight or less or about 48% by weight or less than 48% by weight of DC residuals as measured by DC testing. In various embodiments, the water soluble film has at least 1%, 2%, 5%, 10%, or 20% by weight and/or at most about 15%, 20%, 30% by weight, 40% by weight, 45% by weight or 48% by weight (eg, from about 5% by weight to about 48% by weight, from about 10% by weight to about 45% by weight, from about 20% by weight to about 45% by weight or from about 30% by weight to about 40%) DC value of % by weight).

Tensile strength test and modulus test

The water-soluble film was analyzed as follows, the film was characterized by tensile strength or tensile strength according to tensile strength (TS) test, and the film was characterized by modulus (or tensile stress) according to modulus (MOD) test. Or test its modulus (or tensile stress). The procedure is included at 100% elongation and tensile strength is determined according to ASTM D 882 ("Standard Test Method for Tensile Properties of Thin Plastic Sheeting") or equivalent. And measure the modulus. Membrane data was collected using an Instron tensile test device (Model 5544 tensile tester or equivalent). For each measurement, (where applicable) a minimum of three test samples were tested in the machine direction (MD), each cut with a reliable cutting tool to ensure dimensional stability and reproducibility. The test was performed in a standard laboratory atmosphere at 23 °C ± 2.0 °C and 35% ± 5% relative humidity. For tensile strength or modulus determination, a 1" wide (2.54 cm) single patch sample having a thickness of 3.0 mil ± 0.15 mil (or 76.2 micron ± 3.8 micron) was prepared. The sample was then transferred to Instron. Tensile tester for testing while minimizing exposure to 35% relative humidity. Prepare a calibrated tensile tester with a 500 liter dynamometer according to the manufacturer's instructions. Install the appropriate fixture and Surface (Instron fixture with model 2702-032 surface, rubber coated and 25 mm wide, or equivalent). The sample is mounted in a tensile tester, elongated and analyzed to determine 100% modulus (i.e., the stress required to achieve 100% film elongation) and tensile strength (also the stress required for film breakage).

Optionally, the film can be processed into articles by, for example, film-coated Specific mechanical characterization.

The water soluble film according to the present invention can be embodied by a TS value of at least about 24 MPa or about 28 MPa as measured by the TS test. In general, a higher TS value is desired because it corresponds to a more robust pouch seal when the film is the limiting or weakest element of the seal. In various embodiments, the water soluble film has a at least about 24 MPa, 26 MPa, 28 MPa, 30 MPa, 33 MPa, or 35 MPa and/or at most about 32 MPa, 34 MPa, 40 TS values of megapascals, 45 megapascals or 50 megapascals (e.g., from about 24 MPa to about 36 MPa or from about 28 MPa to about 32 MPa). Alternatively or additionally, the upper limit of the range of suitable TS values may be a corresponding water-soluble film of a single PVOH polymer or PVOH copolymer having only PVOH polymer and PVOH copolymer in the PVOH resin blend (eg having a higher value) Corresponding to the TS value of the single resin film).

The water soluble film according to the present invention can be embodied by a MOD value of at least about 11 N/mm 2 or about 12 N/mm 2 as measured by the MOD test. In general, higher MOD values are desirable because they correspond to pouches that have greater hardness and lower likelihood of deforming and sticking to each other when loaded on top of each other during production or in the final consumer package. . In various embodiments, the water soluble film has at least about 11 N/mm 2 , 12 N/mm 2 or 13 N/mm 2 and/or up to about 13 N/mm 2 , 14 N/mm 2 , 15 N/m 2 . MOD values of millimeters or 16 cows per square millimeter (e.g., from about 11 cows per square millimeter to about 15 cows per square millimeter or from about 12 cows per square millimeter to about 14 cows per square millimeter). Alternatively or additionally, the upper limit of the range of suitable MOD values may be a corresponding water soluble film of a single PVOH polymer or PVOH copolymer having only PVOH polymer and PVOH copolymer in the PVOH resin blend (eg having a higher MOD value) The MOD value corresponding to the single resin film).

Example Example 1 to Example 5: single resin film

Examples 1 to 5 represent water-soluble films each comprising a single PVOH polymer or a PVOH copolymer resin A-E. Resin A and Resin B are partially hydrolyzed PVOH polymers having no anionic comonomers and having different 4% solution viscosities. Resin C is a partially hydrolyzed PVOH copolymer comprising a 1.82 mol% incorporation of an anionic maleic acid monomethyl ester (sodium salt) comonomer (ie, resin C is a vinyl alcohol, vinyl acetate) And a PVOH terpolymer of a monomethyl maleate (sodium salt) monomer unit). Resin D and Resin E are partially hydrolyzed PVOH copolymers comprising an anionic 2-propenylamino-2-methylpropanesulfonic acid (sodium salt) comonomer in an amount of 1.77 mol% and 3.70 mol%, respectively. That is, the resins D and E are PVOH terpolymers having vinyl alcohol, vinyl acetate, and 2-acrylamido-2-methylpropanesulfonic acid (sodium salt) monomer units). The film comprises (i) its corresponding resin (100 parts by weight portion per hundred resin parts by weight (phr)), (ii) glycerin plasticizer (about 20 phr-22 phr), (iii) propylene glycol plasticizer (about 10 phr-12 phr) ), (iv) sorbitol plasticizer (about 5 phr-6 phr), (v) a modified starch filler (about 2 phr-4 phr), (vi) surfactant and other processing aids (about 5 phr-7 phr) ), as well as residual water (about 9 phr - 10 phr). The foregoing aqueous composition was cast to form a 3.0 mil ± 0.15 mil (or 76.2 micron ± 3.8 micron) film sample which was tested for DC residual values by the above method. Table 1 summarizes the resin and film properties of Examples 1 to 5. In Table 1, the anionic comonomer (AC) content of the film is provided in moles relative to all of the polymeric resin in the film (ie, excluding its plasticizer and other non-resin components).

Figure 2 presents data from Table 1 illustrating DC residual (% by weight) as a function of the AC content (% by mole) of the PVOH (co)polymer resin forming the film. As shown, the DC residue is highly correlated with the AC content. The curved and convex shape of the DC residual (y) relative to the AC background (x) relationship is described by the quadratic curve of the tested film (y(x)=-4.491x ² +1.864x+60.38; r ² =0.9996) Figure 2.

Example 6 to Example 10: Double resin blend film

Examples 6 to 10 represent water-soluble films each comprising a blend of a blend of PVOH polymer or PVOH copolymer resin A-E. Specific blends include PVOH resin A and PVOH resin E (Example 6), PVOH resin A and PVOH resin C (Example 7), PVOH resin A and PVOH resin D (Example 8), PVOH resin B and PVOH resin E (Example 9) and PVOH resin A and PVOH resin B (Example 10). The blend film comprises 100 phr of a combination of two resins which form a given blend within a relative weight ratio range as set forth in Tables 2 through 6 below, while the plasticizer and other additives are as implemented The amounts and types described in Examples 1 to 5 exist. The aqueous composition of the foregoing blend film composition was cast to form a 3.0 mil ± 0.15 mil (or 76.2 micron ± 3.8 micron) film sample which was tested for DC residual, TS and MOD values by the above method. Tables 2 to 6 summarize the resin and film properties of Examples 6 to 10. The first entry of each of Tables 2 to 6 and The last entry represents the single resin limit of the film formulation, while the remaining values represent the dual resin blend formulation. In Tables 2 to 6, the anionic comonomer (AC) content of the film is relative to all of the polymer resins in the film (ie, containing the two resins present, but excluding the plasticizer and other non-resin components) Available as a meter.

Figures 3 and 4 present data from Tables 2 through 6 illustrating the DC residual (% by weight) as a function of the AC content (% by mole) of the PVOH (co)polymer resin blend forming the film. As can be seen from FIG. 3, the DC residual data of Examples 7 to 10 generally follows the DC residual relationship with respect to the AC content as illustrated in FIG. 2 with respect to the single polymer resin films of Examples 1 to 5. The same curved, convex shape. However, with respect to both the single polymer resin film of Examples 1 to 5 and the double polymer resin blend film of Examples 7 to 10, the double of Example 6 (A/E blend) The polymer resin blend film exhibits a substantially increased reduction in DC residue over a wide range of blend compositions. In particular, the A/E blend film of Example 6 exhibits substantiality at an AC content ranging from about 1 mol% to about 3.4 mol%, especially from about 1.4 mol% to about 2.6 mol%. Reduced DC residuals. The corresponding blend composition of the advantageous film of Example 6 comprises from about 30% to about 90% by weight Resin E (especially from about 40% to about 70% by weight Resin E) and from about 10% to about 70% by weight Resin A (especially from about 30% by weight to about 60% by weight of Resin A).

Figure 4, which illustrates a subset of the data in Figure 3, provides Example 6 (A/E blend) Comparison of membrane with Example 9 (B/E blend) membrane. As can be seen in the figure, the Example 9 (B/E Blend) film does not provide improved baseline residual DC residual performance relative to Examples 1 to 5 or Examples 7 through 10 (overall). Although Example 6 and Example 9 span the same range of AC content values and both share the same anionic PVOH copolymer resin E (ie, both have the same amount of 2-acrylamido-2-methylpropanesulfonate) Acid (sodium salt) comonomer). The main difference between Example 6 and Example 9 is the 4% solution viscosity of PVOH polymer resin A in Example 6 compared to PVOH polymer resin B (about 23.5 centipoise) in Example 9. 12.5 centipoise).

A comparison of other examples similarly illustrates the advantages of the Example 6 (A/E blend) film. The film of Example 8 (A/D blend) and the film of Example 6 (A/E blend) share the same PVOH polymer resin A and the same anionic comonomer (i.e., both resin D and resin E have 2- Acrylamide-2-methylpropanesulfonic acid (sodium salt) comonomer), but the Example 8 (A/D blend) film is not provided relative to Example 1 to Example 5 or Example 7. Comparison of baseline improved DC residual potency to Example 10 (overall). Thus, the presence of 2-propenylamido-2-methylpropanesulfonic acid (sodium salt) comonomer alone does not necessarily provide improved DC residual performance. The Example 10 (A/B Blend) film comprising two PVOH polymers of different viscosities (or equivalently, molecular weight) had relatively high DC residual values. Thus, the relatively low viscosity (or molecular weight) of Resin A in the Example 6 (A/E blend) film does not necessarily provide improved DC residual efficacy alone.

Example 11: Illustrative composition

Tables 7 through 15 show illustrative compositions that can be combined with the articles described herein. For example, the following compositions intended to be non-limiting examples can be encapsulated in a water soluble film as described herein, such as a sachet.

A bleaching additive can comprise the ingredients presented in Table 7.

Granular laundry detergents can include the ingredients presented in Table 8.

Liquid laundry detergents can include the ingredients presented in Table 9.

The detergent may comprise the formulation presented in Table 10.

The composition may comprise the formulation presented in Table 11.

Multi-compartment pouches can contain a plurality of benefit agents. By way of a non-limiting example, a two-component or three-component pouch can contain the formulation presented in Table 12 in a separate enclosure, wherein the dosage is the amount of formulation in the corresponding enclosure.

In another embodiment of the multi-component pouch, the corresponding casing can be filled with a liquid and solid benefit agent. Non-limiting examples of two compartment pouches (one of which is filled with a liquid and one filled with a solid) comprise a combination of the formulations presented in Tables 13 and 14.

A hard surface cleaning composition that can be used by a professional can include the formulations presented in Table 15.

The above description is given for clarity of understanding only, and should not be construed as an unnecessary limitation, as modifications within the scope of the invention will be apparent to those skilled in the art.

Throughout the specification and the appended claims, the word "comprise" and variations (such as "comprises/comprising") are to be understood to include the whole or the steps, unless otherwise specified herein. Or a whole or a group of steps, but does not exclude any other whole or steps or steps or groups of steps or steps.

Throughout the specification, unless otherwise described, when the composition is described as comprising a component or substance, it is contemplated that the composition may also consist essentially of or consist of any combination of the components or substances. Combination composition. Also, unless otherwise described, when a method is described as comprising a particular step, it is contemplated that the method can also consist essentially of or consist of any combination of the steps. The presently disclosed invention may be suitably practiced in the absence of any element or step that is not specifically disclosed herein.

The methods disclosed herein and the practice of the individual steps thereof can be manually and/or borrowed Assist in the execution of electronic devices or automation provided by electronic devices. Although the process has been described with reference to a particular embodiment, those skilled in the art will readily appreciate that other implementations of the actions associated with the method can be used. For example, the order of the various steps may be varied, without departing from the scope or spirit of the method, unless otherwise described. In addition, some of the individual steps may be combined, omitted or further subdivided into other steps.

All patents, publications, and references cited herein are hereby incorporated by reference in their entirety. In the event of a conflict between the present invention and the incorporated patents, publications and references, the present invention shall prevail.

10‧‧‧ film

20‧‧‧ film

30‧‧‧ interface

40‧‧‧ Internal pouch container volume

50‧‧‧Composition

100‧‧‧Water soluble pouch

Claims (85)

A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 4% at 20 ° C a solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a second at 20 ° C % solution viscosity (μ ₂ ); wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer |μ ₂ -μ ₁ | is in the range of 0 centipoise to about 10 centipoise, and The first PVOH copolymer is present in an amount ranging from about 30% to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film. The water soluble film of claim 1, wherein the second PVOH polymer is present in an amount ranging from about 10% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The water-soluble film of claim 1 or 2, wherein the anionic monomer unit has a total PVOH polymer and PVOH copolymer range of from about 1.0 mol% to about 4.2 mol% in the film. The amount inside is present in the film. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 4% at 20 ° C a solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having a second at 20 ° C % solution viscosity (μ ₂ ); wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer |μ ₂ -μ ₁ | is in the range of 0 centipoise to about 10 centipoise, and The anionic monomer units are present in the film in an amount ranging from about 1.0 mole percent to about 4.2 mole percent total PVOH polymer and PVOH copolymer in the film. The water-soluble film according to any one of claims 1 to 4, wherein the anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, and cis-butyl Monoalkylene dicarboxylate, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, antibutene Acid monoalkyl ester, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, clothing Dimethyl benzoate, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2-acrylamido-1-methylpropane sulfonic acid, 2-acrylamido-2-yl a propanesulfonic acid, 2-methylpropenylamino-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof. The water-soluble film according to any one of claims 1 to 5, wherein the anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid and a base thereof. Metal salts and combinations thereof. The water-soluble film according to any one of claims 1 to 6, wherein Anionic monomers are selected from the group consisting of maleic acid monomethyl esters, alkali metal salts thereof, and combinations thereof. The water-soluble film according to any one of claims 1 to 7, wherein the anionic monomer unit is present in the first PVOH in an amount ranging from about 2 mol% to about 10 mol%. In the copolymer. The water soluble film of claim 8, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 5 mole % to about 10 mole %. The water-soluble film of claim 9, wherein the anionic monomer unit is present in an amount ranging from about 3 mol% to about 4.2 mol% of the total PVOH polymer and PVOH copolymer in the film. . The water-soluble film according to any one of claims 1 to 10, wherein the PVOH resin blend consists essentially of the first PVOH copolymer and the second PVOH polymer. The water-soluble film according to any one of claims 1 to 11, wherein a difference in viscosity (μ _{2 -} μ ₁ ) between the first PVOH copolymer and the second PVOH polymer is about From 0 centipoise to about 10 centipoise. The water-soluble film according to any one of claims 1 to 12, wherein the first viscosity μ _{1 is} in the range of from about 4 centipoise to about 24 centipoise. The water-soluble film according to any one of claims 1 to 13, wherein the second viscosity μ _{2 is} in the range of from about 4 centipoise to about 24 centipoise. The water-soluble film according to any one of claims 1 to 14, wherein the water-soluble film has a weight of about 45 wt% or less, as measured by a dissolution chamber test. The residual value of %. The water-soluble film of any one of clauses 1 to 15, wherein the first PVOH copolymer and the second PVOH polymer each independently have a range of from about 75% to about 99%. Degree of hydrolysis within. The water-soluble film according to any one of claims 1 to 16, wherein the PVOH resin blend comprises a third PVOH polymer. The water-soluble film according to any one of claims 1 to 17, wherein the water-soluble film further comprises at least a third water-soluble polymer other than the PVOH polymer. The water-soluble film according to claim 18, wherein the third water-soluble polymer is selected from the group consisting of polyethylenediimide, polyvinylpyrrolidone, polyoxyalkylene, poly Acrylamide, cellulose ether, cellulose ester, cellulose decylamine, polyvinyl acetate, polyamine, gelatin, methyl cellulose, carboxymethyl cellulose and its salts, dextrin, ethyl cellulose, Hydroxyethyl cellulose, hydroxypropyl methylcellulose, maltodextrin, starch, modified starch, guar gum, gum arabic, tricyon gum, carrageenan, polyacrylate and its salts, copolymerization thereof , blends thereof, and combinations thereof. The water-soluble film according to any one of claims 1 to 19, wherein the water-soluble film further comprises one or more selected from the group consisting of: a plasticizer, Plasticizer compatibilizer, lubricant, mold release agent, filler, extender, crosslinker, anti-caking agent, antioxidant, anti-adhesive agent, antifoaming agent, nano particle, bleach, interface activity Agents and combinations thereof. The water-soluble film according to any one of claims 1 to 20, wherein the water-soluble film further comprises an amount in an amount ranging from about 1 to about 40% by weight of the film. A variety of plasticizers. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 4% at 20 ° C a solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having about 20 centipoise or less 4% solution viscosity (μ ₂ ) at a second 20 ° C of centipoise; wherein: the first PVOH copolymer is in the range of from about 30% to about 90% by weight of the total PVOH polymer and copolymer in the film The amount exists. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first PVOH copolymer having a first 4% at 20 ° C a solution viscosity (μ ₁ ); and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, the second PVOH polymer having about 20 centipoise or less 4% solution viscosity (μ ₂ ) at a second 20 ° C of centipoise; wherein: the anionic monomer unit is from about 1.0 mol% to about 4.2 mol% total PVOH polymer and PVOH copolymer in the film Amounts within the range are present in the film. A water soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising a first anionic monomer unit; and a composition consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit a second PVOH polymer; wherein the first PVOH copolymer is present in an amount of from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The water soluble film of claim 24, wherein the second PVOH polymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The water-soluble film according to claim 24, wherein the first anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, and maleic acid. Acid monoalkyl ester, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, fumaric acid Alkane ester, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, itaconic acid Dimethyl ester, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, ethylene sulfonic acid, 2-acrylamido-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropane Sulfonic acid, 2-methylpropenylamino-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof. The water-soluble film according to any one of claims 24 to 26, wherein the first anionic monomer is selected from the group consisting of: acrylamidomethylpropanesulfonic acid, Its alkali metal salts and combinations thereof. The water-soluble film of claim 27, wherein the first anionic monomer is The amount of less than about 3 mole % total PVOH polymer and PVOH copolymer in the film is present. The water-soluble film according to any one of claims 24 to 28, wherein the first PVOH copolymer and the second PVOH polymer have 20 ° C within about 10 centipoise of each other. The next 4% solution viscosity value. The water-soluble film according to any one of claims 24 to 29, wherein the first PVOH copolymer and the second PVOH polymer have a temperature of 20 ° C which is apart from each other by more than about 10 centipoise. 4% solution viscosity value. The water-soluble film according to any one of claims 24 to 30, wherein the first PVOH copolymer has the first range of from about 3 mol% to about 5 mol% An incorporation content of an anionic monomer unit; the first anionic monomer is selected from the group consisting of: acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; The body is present in an amount ranging from about 1 mole % to about 3 mole % of the total PVOH polymer and PVOH copolymer in the film; the first PVOH copolymer is from about 40% to about 60 in the film The amount of % by weight of the total PVOH polymer and the PVOH copolymer is present; the second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of from about 8 centipoise to about 16 centipoise; The second PVOH polymer is present in an amount ranging from about 40% to about 60% by weight of the total PVOH polymer and PVOH copolymer in the film. The water-soluble film according to any one of claims 24 to 30, wherein the first PVOH copolymer has the first range of from about 3 mol% to about 5 mol% An incorporation content of an anionic monomer unit; the first anionic monomer is selected from the group consisting of: acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; The body is present in an amount ranging from about 1 mole % to about 3 mole % of the total PVOH polymer and PVOH copolymer in the film; the first PVOH copolymer is from about 30% to about 70% of the film The amount of % by weight of the total PVOH polymer and the PVOH copolymer is present; the second PVOH polymer has a 4% solution viscosity value at 20 ° C in the range of from about 20 centipoise to about 30 centipoise; The second PVOH polymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The water-soluble film according to any one of claims 24 to 32, wherein the water-soluble film has a content of about 48% by weight or less, as measured by a dissolution chamber test. Residual value. The water-soluble film according to any one of claims 24 to 33, wherein the water-soluble film has an average tensile strength of at least about 33 MPa as measured by a tensile strength test. value. The water-soluble film of any one of claims 24 to 34, wherein the water-soluble film has a modulus value of at least about 12 N/mm 2 as measured by a modulus test. An article comprising: the water-soluble film according to any one of claims 1 to 35, which is defined The internal pouch is in the form of a pouch. The article of claim 36, further comprising a composition contained in the inner pouch volume. An article comprising: a. a water soluble film, wherein the water soluble film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, said a PVOH copolymer having a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, The second PVOH polymer has a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer is |μ ₂ -μ ₁ | From 0 centipoise to about 10 centipoise, and the first PVOH copolymer is present in an amount ranging from about 30% to about 90% by weight of the total PVOH polymer and PVOH copolymer in the film; and b. A home care composition that is close to the film. The article of claim 38, wherein the second PVOH polymer is present in an amount ranging from about 10% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The article of claim 38 or 39, wherein the anionic monomer unit is from about 1.0 mol% to about 4.2 mol% of the total PVOH polymer and PVOH in the film. An amount within the range of the polymer is present in the film. An article comprising: a. a water soluble film, wherein the water soluble film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, said a PVOH copolymer having a 4% solution viscosity (μ ₁ ) at a first 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, The second PVOH polymer has a 4% solution viscosity (μ ₂ ) at a second 20 ° C; wherein: the absolute viscosity difference between the first PVOH copolymer and the second PVOH polymer is |μ ₂ -μ ₁ | In the range from 0 centipoise to about 10 centipoise, and the anionic monomer units are present in an amount ranging from about 1.0 mole percent to about 4.2 mole percent total PVOH polymer and PVOH copolymer in the film. In the film; and b. a home care composition close to the film. The article of any one of claims 38 to 41, wherein the anionic monomer is selected from the group consisting of vinyl acetate, maleic acid, and maleic acid. Acid monoalkyl ester, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anhydride, fumaric acid, fumaric acid Alkane ester, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anhydride, itaconic acid, monomethyl itaconate, itaconic acid Dimethyl ester, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2-acrylamido-1-methylpropane sulfonic acid, 2-propenyl guanidino-2- Methylpropanesulfonic acid, 2-methylpropenylamino-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof. The article of any one of claims 38 to 42 wherein the anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid and an alkali metal salt thereof. And its combination. The article of any one of claims 38 to 43 wherein the anionic monomer is selected from the group consisting of maleic acid monomethyl ester, alkali metal salt thereof, and Its combination. The article of any one of claims 38 to 44, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 2 mol% to about 10 mol%. in. The article of claim 45, wherein the anionic monomer unit is present in the first PVOH copolymer in an amount ranging from about 5 mole % to about 10 mole %. The article of claim 46, wherein the anionic monomer unit is present in an amount ranging from about 3 mole % to about 4.2 mole % total PVOH polymer and PVOH copolymer in the film. The article of any one of claims 38 to 47, wherein the PVOH resin blend consists essentially of the first PVOH copolymer and the second polymer. The article of any one of claims 38 to 48, wherein a difference in viscosity (μ _{2 -} μ ₁ ) between the first PVOH copolymer and the second PVOH polymer is about 0% Parked to approximately 10 centipoise. The article of any one of claims 38 to 49, wherein the first viscosity μ _{1 is} in the range of from about 4 centipoise to about 24 centipoise. The article of any one of claims 38 to 50, wherein the second viscosity μ _{2 is} in the range of from about 4 centipoise to about 24 centipoise. The article of any one of claims 38 to 51 wherein the water soluble film has a residual value of about 45% by weight or less by 45% by weight as measured by a dissolution chamber test. . The article of any one of claims 38 to 52, wherein the first PVOH copolymer and the second PVOH polymer each independently have a range of from about 75% to about 99%. Degree of hydrolysis. The article of any one of claims 38 to 53 wherein the PVOH resin blend comprises a third PVOH polymer. The article of any one of claims 38 to 54 wherein the water soluble film further comprises at least a third water soluble polymer other than the PVOH polymer. The article of claim 55, wherein the water-soluble polymer is selected from the group consisting of polyethylenediamine, polyvinylpyrrolidone, polyoxyalkylene, polyacrylamide, Cellulose ether, cellulose ester, cellulose decylamine, polyvinyl acetate, polyamine, gelatin, methyl cellulose, carboxymethyl cellulose and its salts, dextrin, ethyl cellulose, hydroxyethyl fiber , hydroxypropyl methylcellulose, maltodextrin, starch, modified starch, guar gum, gum arabic, sambag, carrageenan, polyacrylate and its salts, copolymers thereof, blends thereof And combinations thereof. The article of any one of claims 38 to 56, wherein the water is soluble The film further comprises one or more components selected from the group consisting of plasticizers, plasticizer compatibilizers, lubricants, mold release agents, fillers, extenders, crosslinkers, and anti-blocking agents. Agglomerates, antioxidants, anti-sticking agents, antifoaming agents, nanoparticles, bleaches, surfactants, and combinations thereof. The article of any one of claims 38 to 57, wherein the water soluble film further comprises one or more plastics in an amount ranging from about 1 weight to about 40% by weight of the film. Chemical agent. An article comprising: a. a water soluble film, wherein the water soluble film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first The PVOH copolymer has a 4% solution viscosity (μ ₁ ) at a first temperature of 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, said The second PVOH polymer has a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less; wherein: the first PVOH copolymer is from about 30% by weight to about 30% by weight of the film. 90% by weight of the total PVOH polymer and copolymer are present in an amount; and b. a home care composition close to the film. An article comprising: a. a water soluble film, wherein the water soluble film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising an anionic monomer unit, the first The PVOH copolymer has a 4% solution viscosity (μ ₁ ) at a first temperature of 20 ° C; and a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit, said The second PVOH polymer has a 4% solution viscosity (μ ₂ ) at a second 20 ° C of about 20 centipoise or less; wherein: the anionic monomer unit is from about 1.2 mol% to about 4.2 The molar amount of total PVOH polymer and PVOH copolymer in the range of amounts present in the film; and b. a home care article close to the film. An article comprising: a. a water soluble film, wherein the water soluble film comprises: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising a first anionic monomer unit; a second PVOH polymer consisting essentially of a vinyl alcohol monomer unit and optionally a vinyl acetate monomer unit; wherein the first PVOH copolymer is from about 30% to about 70% by weight total PVOH in the film An amount within the range of polymer and PVOH copolymer is present; and b. a home care article that is adjacent to the film. The article of claim 61, wherein the second PVOH polymer is present in an amount ranging from about 30% to about 70% by weight of the total PVOH polymer and PVOH copolymer in the film. The article of claim 61 or 62, wherein the first anion is The body is selected from the group consisting of vinyl acetate, maleic acid, maleic acid monoalkyl ester, maleic acid dialkyl ester, maleic acid monomethyl ester, and cis-butane. Dimethyl enedionate, maleic anhydride, fumaric acid, monoalkyl fumarate, dialkyl fumarate, monomethyl fumarate, anti-butene Dimethyl methacrylate, fumaric anhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, 2- Acrylamide-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid, 2-sulfoethyl acrylate An ester, an alkali metal salt of each of the above, an ester of each of the above, and a combination thereof. The article of any one of claims 61 to 63, wherein the first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid and a base thereof. Metal salts and combinations thereof. The article of claim 64, wherein the first anionic monomer is present in an amount of less than about 3 mole % total PVOH polymer and PVOH copolymer in the film. The article of any one of claims 61 to 65, wherein the first PVOH copolymer and the second PVOH polymer have a temperature of 20 ° C within about 10 centipoise of each other. 4% solution viscosity value. The article of any one of clauses 61 to 66, wherein the first PVOH copolymer and the second PVOH polymer have 4 at 20 ° C separated from each other by more than about 10 centipoise. % solution viscosity value. The article of any one of clauses 61 to 67 wherein the first PVOH copolymer has the first anion single in the range of from about 3 mole % to about 5 mole % Incorporation content of the body unit; The first anionic monomer is selected from the group consisting of acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer is about 1 in the film. From about 0% to about 3 mole % of total PVOH polymer and PVOH copolymer; the first PVOH copolymer is from about 40% to about 60% by weight of the total PVOH polymer and PVOH copolymer in the film An amount within the range of the object; the second PVOH polymer having a 4% solution viscosity value at 20 ° C in the range of from about 8 centipoise to about 16 centipoise; and the second PVOH polymer as the film Amounts ranging from about 40% by weight to about 60% by weight of the total PVOH polymer and PVOH copolymer are present. The article of any one of clauses 61 to 68 wherein the first PVOH copolymer has the first anion single in the range of from about 3 mole % to about 5 mole % The incorporation content of the bulk unit; the first anionic monomer is selected from the group consisting of: acrylamidomethylpropanesulfonic acid, an alkali metal salt thereof, and combinations thereof; the first anionic monomer The amount of from about 1 mole% to about 3 mole% of the total PVOH polymer and PVOH copolymer in the film is present; the first PVOH copolymer is from about 30% to about 70% by weight of the film An amount in the range of total PVOH polymer and PVOH copolymer; the second PVOH polymer having a 4% solution viscosity value at 20 ° C in the range of from about 20 centipoise to about 30 centipoise; and the second PVOH polymer from about 30% to about 70% by weight of total PVOH in the film Amounts in the range of polymers and PVOH copolymers are present. The article of any one of clauses 61 to 69 wherein the water soluble film has a residual value of about 48% by weight or less by 48% by weight as measured by a dissolution chamber test. . The article of any one of clauses 61 to 70, wherein the water soluble film has an average tensile strength value of at least about 33 MPa as measured by a tensile strength test. The article of any one of clauses 61 to 71 wherein the water soluble film has a modulus value of at least about 12 N/mm 2 as measured by a modulus test. The article of any one of claims 38 to 72, wherein the home care composition is in contact with the film. The article of any one of claims 38 to 73, wherein the article is in the form of a pouch comprising at least one sealed compartment. The article of claim 74, wherein the at least one compartment comprises at least one wall, wherein the at least one wall comprises the water soluble film. The article of claim 74, wherein the pouch comprises at least two compartments. The article of claim 76, wherein the second compartment is superimposed on the first compartment. The article of claim 74, wherein the pouch comprises at least three compartments. The article of claim 78, wherein the second compartment and the third compartment are superimposed on On the first compartment. The article of claim 74, wherein the home care composition is included in at least one compartment. The article of any one of claims 38 to 80, wherein the home care composition is selected from the group consisting of: a light liquid detergent composition, a heavy liquid detergent composition Hard surface cleaning compositions, detergent gels commonly used in laundry, bleaching compositions, laundry additives, fabric enhancer compositions, shampoos, body washes, other personal care compositions, and mixtures thereof. The article of any one of claims 38 to 81, wherein the home care composition comprises a surfactant. The article of any one of claims 38 to 82, wherein the home care composition is in the form of a liquid, a solid, a powder, a bead, or a mixture thereof. A method of forming an article according to any one of claims 38 to 83, wherein the method comprises the steps of: providing the water soluble film, wherein the film defines an inner pouch container volume; Filling the container volume with the home care composition; and sealing the film to form a sealed compartment, wherein the sealed compartment contains the home care composition. A method of processing a substrate, wherein the method comprises the step of contacting the substrate with an article according to any one of claims 38 to 83.