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WO2002008509A1 - Emballage de detergent - Google Patents

Emballage de detergent Download PDF

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Publication number
WO2002008509A1
WO2002008509A1 PCT/US2000/034910 US0034910W WO0208509A1 WO 2002008509 A1 WO2002008509 A1 WO 2002008509A1 US 0034910 W US0034910 W US 0034910W WO 0208509 A1 WO0208509 A1 WO 0208509A1
Authority
WO
WIPO (PCT)
Prior art keywords
pack according
products
dispensing
pack
detergent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2000/034910
Other languages
English (en)
Inventor
Tanya Cecile Corneel Van Rompuy
Brian Xiaoqing Song
Elizabeth Ann Alam
Frank William Denome
Helen Varley
Kenton Ray Lynde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21741603&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002008509(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from PCT/US2000/020255 external-priority patent/WO2002008371A2/fr
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to AU2001222876A priority Critical patent/AU2001222876A1/en
Priority to US09/906,479 priority patent/US6557732B2/en
Priority to US09/906,295 priority patent/US20020142931A1/en
Priority to PCT/US2001/022707 priority patent/WO2002006438A1/fr
Priority to JP2002512332A priority patent/JP2004506749A/ja
Priority to EP01959009A priority patent/EP1305394A1/fr
Priority to CA002415304A priority patent/CA2415304A1/fr
Priority to MXPA03000488A priority patent/MXPA03000488A/es
Priority to AU2001280606A priority patent/AU2001280606A1/en
Publication of WO2002008509A1 publication Critical patent/WO2002008509A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0043—For use with aerosol devices
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/1266—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/264—Aldehydes; Ketones; Acetals or ketals
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3227—Ethers thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/16—Metals

Definitions

  • the present invention is in the field of detergents, in particular it relates to detergent packs for use in conjunction with a washing machine and which includes two or more detergent or auxiliary products with different functionalities.
  • the detergent packs are especially useful in dishwashing for the removal of cooked-, baked- and burnt-on soils from cookware and tableware.
  • Dishwashing loads are usually characterised by including articles made of different materials (i.e. stainless steel, glass, plastic, wood, ceramic, china, porcelain, etc ) and soiled with different food residues (i.e. proteinaceous, carbohydrates, grease, starch, carotenoids, etc).
  • the removal of all the soils from the dishwashing load usually requires a combination of several detergent ingredients. However, in many cases not all the ingredients are compatible with one another and it can be a difficult or impossible task to combine and stabilise them into a single composition.
  • Cooked-, baked- and burnt-on soils are amongst the most severe types of soils to remove from surfaces. Traditionally, the removal of cooked-, baked- and burnt-on soils from cookware and tableware requires soaking the soiled object prior to a mechanical action. Consequently, the automatic dishwashing process alone does not provide a satisfactory removal of cooked-, baked- and burnt-on soils. Manual dishwashing processes may require a tremendous rubbing effort to remove cooked-, baked- and burnt-on soils and this can be detrimental to the safety and condition of the cookware/tableware.
  • US-A-5, 102,573 provides a method for treating hard surfaces soiled with cooked-on, baked-on or dried-on food residues comprising applying a pre-spotting composition to the soiled article.
  • the composition applied comprises surfactant, builder, amine and solvent.
  • US-A-5,929,007 provides an aqueous hard surface cleaning composition for removing hardened dried or baked-on grease soil deposits.
  • the composition comprises nonionic surfactant, chelating agent, caustic, a glycol ether solvent system, organic amine and anti-redeposition agents.
  • O-A-94/28108 discloses an aqueous cleaner concentrate composition, that can be diluted to form a more viscous use solution comprising an effective thickening amount of a rod micelle thickener composition, lower alkyl glycol ether solvent and hardness sequestering agent.
  • the application also describes a method of cleaning a food preparation unit having at least one substantially vertical surface having a baked food soil coating. In practice, however, none of the art has been found to be very effective in removing baked-on, polymerized soil from metal and other substrates.
  • JP-A- 10,017,900 discloses an automatic dishwashing auxiliary composition comprising non- ionic low foaming surfactant, organic solvent and water. The composition delivers detergency and drying benefits.
  • JP-A-11,117,000 discloses a cleaning assistant composition for automatic dishwashing machines comprising surfactant, organic high- molecular polyelectrolyte, water-soluble solvent and water. The claimed assistant composition helps in the cleaning of stubborn dirt such as that due to oil or lipstick.
  • Multi-compartment dispensing devices are used for the storage of chemical systems which require two or more components to be kept separate before their use.
  • Such devices for example US-A-4,678,103 and US-A- 4,730,381 disclose plural-chambered, gravity-activated dispensing devices for two or more flowable products at a substantially constant, predetermined ratio;
  • WO-A-00/61712 and O-A-00/61713 disclose liquid cleaning compositions comprising bleach and bleach activators which are held separate from each other in a single container.
  • These multi- compartment dispensing devices can deliver a predetermined ratio of the multiple compositions however the total amount delivered needs to be measured by the consumer. Moreover maintaining a constant ratio can be difficult in the case of gel-form compositions or products delivered at a high ratio relative to one another.
  • the pack should provide maximum convenience and minimum effort for the user by automatically delivering a predetermined dose of detergent.
  • a detergent pack for use in conjunction with a washing machine and which comprises two or more detergent or auxiliary products, storage means comprising separate but associated portions of the two or more products, and means for delivering quantities of the two or more products into the same or different cycles of a washing machine.
  • the means for delivering quantities of the two or more products comprises means for dispensing quantities of the two or more products, and means for controlling the relative dispensing rate of the two or more products from the storage means.
  • the pack can, for example, be a multi-compartment bottle-shaped storage container containing different products in the different compartments, the products being simultaneously delivered at a predetermined ratio into the washing machine.
  • the pack can be hand-held whereby the two or more products are manually dosed into the washing machine dispenser as required by the user.
  • the pack can be built-into or accommodated as a replaceable unit in a washing machine, whereby the two or more products are automatically delivered into the washing machine under program control in accordance with the requirements of the user on the wash process parameters.
  • the packs of the invention allow the inclusion of products incompatible with one another into the same storage means and the delivery of the different products in a fixed relative ratio.
  • the packs of the invention simplify the process of delivering different and incompatible compositions into the washing machine.
  • the pack comprises at least two product containers for separate storage of the two or more detergent or auxiliary products.
  • auxiliary product is understood to be a product which is capable of improving the result of the washing process over that achieved when using the detergent product alone.
  • Suitable product containers include for example rigid or semi-rigid bottles made of plastics material. Although there is no theoretical limitation as to the size and shape of the product containers, the containers will normally have, for practical reasons, capacities of from about 0.1 1 to about 5 1 preferably from about 0.2 1 to about 1.5 1 by volume.
  • the storage means can include means for refilling thereof, such as for example reclosable opening in each of the product containers or the storage means can be removed or replaced as a unit for the purpose of recharging the pack with fresh product.
  • the pack is normally constructed to include an outer shell which provides at least part of the external framework of the pack, the storage means being adapted to fit wholly or partly within the outer shell.
  • the outer shell and the storage means together form the exterior framework of the pack, this facilitating the refilling and replacement of the storage means when required by the user.
  • the storage means comprises two or more product containers mounted in an inverted orientation with corresponding outlets directed in a generally downward direction to provide gravitational-assisted dispensing therefrom.
  • Inverted orientation is particularly suitable in cases in which the two or more detergent or auxiliary products have very high viscosity.
  • the downward direction of dispensing avoids the need of tilting the pack to pour out the two or more detergent or auxiliary products.
  • the volume of the two or more product containers will generally be in integer ratio to one another ( ⁇ 5% or so). This allows refilling or replacement of the various product containers at the same time.
  • the means for dispensing generally comprises one or more conduit means, connecting with one or more dispensing orifices and having one or more valves associated therewith to enable or cut off the flow of product through the one or more dispensing orifices.
  • the conduit means take the form of one or of a plurality of flexible tubes, for example silicone rubber tubes.
  • the tubes can have the same or different diameters.
  • the diameter of each tube is chosen as function of the required delivery rate of the products associated therewith.
  • Particularly suitable valves for use at or proximal to the inlet of the each conduit means are duckbill valves which allow to regulate the flow as well as venting of the sealed containers.
  • conduit means are provided for each of the two or more products and these conduit means lead to and communicate to the outlet with a common valve means, for example a slit seal valve having a dispensing orifice in the form of slit which is normally closed but which can be opened under pressure to allow dispensing of the product.
  • a common valve means for example a slit seal valve having a dispensing orifice in the form of slit which is normally closed but which can be opened under pressure to allow dispensing of the product. This valve helps to deliver the products in a clean manner avoiding any dripping after delivery.
  • the relative dispensing rate of the two or more products can be controlled by one or more electrically operated pumps adapted to dispense the two or more products at given flow rates, or for given dispensing times or in a given product dispensing sequence.
  • the relative dispensing rate is controlled by a positive displacement pump.
  • This kind of pump is particularly suitable herein for providing controlled dosages of multiple products.
  • a preferred pump for use herein is a peristaltic pump which is operatively associated with the flexible tubes described hereinabove to provide a fixed relative dispensing rate.
  • the peristaltic pump can also include means such as a retropumping system for pumping the two or more products in a reverse direction at the end of the dispensing cycle in order to prevent excess product dripping from the dispensing orifices.
  • the relative dispensing rate is determined by the relative diameter of the flexible tubes and by the rheology of the two or more detergent or auxiliary products.
  • the products are in gel form, the rheology or the gel-form compositions, being matched to provide dispensing of the two or more products at a controlled relative dispensing rate.
  • Products are considered to be rheology-matched if they have similar yield values (differing by less than about 50%, preferably by less than about 20%) and/or similar viscosities (differing by less than about 50%, preferably by less than about 20%) under the same shear conditions.
  • the pack also includes means for preselecting the dosages or quantities of the two or more product to be dispersed.
  • the pack allow for dosing an optimum amount effective for high, medium or lightly soiled loads.
  • the pack can also include means overriding the preselecting means to provide continuous dispensing, thereby allowing the consumer to add an extra amount of product.
  • the pack also preferably comprises a visual indication of dispensing such as a movable spout situated in the vicinity of the dispensing orifices and which indicates when the dispensing system is in operation.
  • the packs of the invention can be used in conjunction with detergent or auxiliary products of any kind, but preferably they are used in automatic dishwashing for dispensing a combination of an organic solvent composition and an automatic dishwashing detergent composition.
  • at least one of the two or more detergent or auxiliary products, preferably the organic solvent composition is an anhydrous composition.
  • anhydrous as used herein is intended to include compositions containing less than about 10% of water by weight of the composition, preferably less than about 5% of water and more preferably less than about 1%.
  • the water can be present in the form of hydrated compounds, i.e. bound water or in the form of moisture. It is preferred that the composition contains less than about 1%, preferably less than about 0.1% free moisture. Free moisture can be measured by extracting 2 g of the product into 50 ml of dry methanol at room temperature for 20 minutes and then analysis a 1 ml aliquot of the methanol by Karl Fischer titration.
  • the detergent product or auxiliary comprises an organic solvent system.
  • the organic solvent system can simply act as a liquid carrier, but in preferred compositions, the solvent is capable of removing cooked-, baked- or baked-on soils from substrates and thus has detergent functionality in its own right. Organoamine solvents are particularly beneficial in this respect.
  • the organic solvent system (comprising a single solvent compound or a mixture of solvent compounds) preferably has a volatile organic content above 1 mm Hg and more preferably above 0.1 mm Hg of less than about 50%, preferably less than about 20% and more preferably less than about 10% by weight of the solvent system.
  • volatile organic content of the solvent system is defined as the content of organic components in the solvent system having a vapor pressure higher than the prescribed limit at 25°C and atmospheric pressure.
  • the organic solvent system for use herein is preferably selected from organoamine solvents, inclusive of alkanolamines, alkylamines, alkyleneamines and mixtures thereof; alcoholic solvents inclusive of aromatic, aliphatic (preferably C 4 -C 10 ) and cycloaliphatic alcohols and mixtures thereof; glycols and glycol derivatives inclusive of C 2 -C (poly)alkylene glycols, glycol ethers, glycol esters and mixtures thereof; and mixtures selected from organoamine solvents, alcoholic solvents, glycols and glycol derivatives.
  • organoamine solvents inclusive of alkanolamines, alkylamines, alkyleneamines and mixtures thereof
  • alcoholic solvents inclusive of aromatic, aliphatic (preferably C 4 -C 10 ) and cycloaliphatic alcohols and mixtures thereof
  • glycols and glycol derivatives inclusive of C 2 -C (poly)alkylene glycols, glycol ethers, glycol esters and mixture
  • the organic solvent comprises organoamine (especially alkanolamine, more especially 2-aminalkanol) solvent and glycol ether solvent, preferably in a weight ratio of from about 3:1 to about 1:3, and wherein the glycol ether solvent is selected from ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monobutyl ether, dipropylene glycol, dipropylene glycol methyl ether, and mixtures thereof.
  • the glycol ether is a mixture of diethylene glycol monobutyl ether and propylene glycol butyl ether, especially in a weight ratio of from about 1 :2 to about 2:1.
  • Preferred anhydrous dishwashing compositions for use herein take the form of a particulate bleach suspension in a non-aqueous liquid carrier.
  • Particulate bleaches suitable for use herein include inorganic peroxides inclusive of perborates and percarbonates, organic peracids inclusive of preformed monoperoxy carboxylic acids, such as phthaloyl amido peroxy hexanoic acid and di-acyl peroxides.
  • Preferred peroxides for use herein are percarbonate and perborate bleach.
  • One problem in formulating particulate bleach into liquid compositions is to keep the bleach physically stable and homogeneously distributed in the liquid composition. Bleach suspension can be achieved by matching the density of the liquid carrier and the particulate bleach.
  • the density difference between the particulate bleach and the non-aqueous liquid carrier is preferably less than about 500 Kg /m 3 , more preferably less than about 300 Kg /m 3 .
  • High viscosity and small particle size will also contribute to the formation of a stable suspension.
  • the particulate bleach has an average particle size from about 10 ⁇ m to about 500 ⁇ m, preferably from about 30 ⁇ m to about 250 ⁇ m, as measured using a Malvern particle size analyser based on laser diffraction.
  • the suitable viscosities for the suspensions used herein are from about 1,000 Kg/m s "1 to about 100,000 Kg/m s "1 , preferably from about 5,000 Kg/m s "1 to about 50,000 Kg/m s '1 at shear rate of Is "1 ; and from about 500 Kg/m s " 1 to about 50,000 Kg/m s "1 , preferably from about 800 Kg/m s "1 to about 30,000 Kg/m s 1 at shear rate of 150s "1 as measured using a Contraves Rheometer with 40 mm diameter parallel plate at 25°C.
  • the stability of the bleach suspension can also be enhanced through the use of suspending agents.
  • bleaches such as perborates and percarbonates are incompatible with some of the traditional thickeners used as suspending agents for example the polymeric thickeners and clays.
  • cellulosic type thickeners have improved bleach compatibility and give rise to physically stable suspensions.
  • Suitable thickener materials for use herein include hydroxyethyl and hydroxymethyl cellulose (ETHOCEL and METHOCEL® available from Dow Chemical), hydroxpropyl cellulose (Klucel H and Klucel M) and mixtures thereof.
  • a free radical scavenger can be added to the suspension.
  • Suitable free radical scavengers for use herein include benzoic acids, sulfobenzenes and mixtures thereof.
  • at least one of the detergent products or auxiliaries includes a detersive enzyme and/or an alkalinity source.
  • the one or more detergent or auxiliary products additionally comprise a spreading auxiliary.
  • the function of the spreading auxiliary is to reduce the interfacial tension between solvent and soil, therefore increasing the wettability of the soils.
  • the spreading auxiliary when added to the compositions herein leads to a lowering in the surface tension of the compositions, preferred spreading auxiliaries being those which lower the surface tension below that of the auxiliary itself.
  • spreading auxiliaries able to render a surface tension below about 30 mN/m, preferably below about 28 mN/m and more preferably below about 26 mN/m, and especially below about 24 mN/m. Surface tensions are measured herein at 25°C.
  • Spreading auxiliaries for use herein can be selected from organic solvents, wetting agents and mixtures thereof.
  • Preferred wetting agents for use herein are silicone polyether copolymers, especially silicone poly(alkyleneoxide) copolymers wherein alkylene is selected from ethylene, propylene and mixtures thereof.
  • the washing process herein is preferably undertaken at low wash liquor surface tension, this being valuable, in conjunction with the defined dishwashing compositions from the viewpoint of providing optimum cleaning performance, especially from cooked-, baked- and burnt-on soils.
  • the surface tension of the wash liquor after delivery of the two or more detergent or auxiliary products is less than about 35 mN/m, preferably less than about 32 mN/m more preferably less than about 30 mN/m and especially less than about 28 mN/m.
  • washing machine incorporating a built-in or replaceable detergent pack as described herein, the washing machine being programmable in accordance with the requirements of the user or of the wash process parameters to automatically deliver quantities of the two or more products from the storage means into the same or different cycles of the washing machine.
  • the present invention envisages the use of a detergent pack for use in conjunction with a washing machine.
  • the pack comprises separate but associated means for storage of two or more detergent or auxiliary products and means for dispensing predetermined quantities at controlled relative dispensing rate of the two or more detergent or auxiliary products.
  • the invention also envisages detergent packs comprising detergent products or auxiliaries in the form of anhydrous liquids, especially useful compositions being those containing an organic solvent capable of remove baked-, cook- or burnt-on soils; and those comprising anhydrous suspensions containing particulate bleach.
  • Figure 1 is an exploded perspective view of a detergent pack according to the invention.
  • Figure 2 is a partial fragmentary side view of the detergent pack of Figure 1.
  • the detergent pack of Figure 1 comprises in general terms: a) two detergent or auxiliary products in fluid form; b) corresponding containers 1 and 2 for bulk storage of the products; c) conduit means 6 and 7 connected with the product containers and communicating with two dispensing orifices and a common associated valve means 12; and d) pump means 5 for providing controlled dispensing of the fluids.
  • the containers for bulk storage of fluid are bottles 1 and 2 of any convenient material and any convenient shape suitable for fitting within shell portions 3 and 4 of the detergent pack, h the exemplified embodiment, the bottles are placed in the shell up-side down, with both outlets lowermost, in order to take advantages of gravitational forces and to avoid the need for tilting.
  • the pack also includes a pair of duckbill valve means 8 and 9 one for each container which can be used to breach the container seals after insertion of the bottles within the shell and to provide means for venting the product containers. The pack is thus designed to allow easy replacement of the bottles in an upside down orientation.
  • the fluids are dispensed in controlled proportions by means of a pump 5.
  • the pump is a peristaltic positive displacement pump.
  • the fluids are dispensed from bottles 1 and 2 through flexible tubes 6 and 7 (shown only in part) by means of the peristaltic pump 5.
  • the exemplified pump arrangement used herein comprises two flexible tubes 6 and 7 and a pump 5 having a single pump head.
  • Each container has a duckbill valve 8 and 9 in the vicinity of the inlets to the flexible tubes.
  • the duckbill valves 8 and 9 allow free flow of fluid with positive differential pressure.
  • Each flexible tube 6 and 7 is connected at its upper end to the outlet 10 or 11 of one of the bottles, passes via the pump 5 and terminates at the common slit seal valve 12 situated within a moveable spout 13.
  • the pump 5 is designed to dispense a fixed ratio of the different fluids.
  • Each tube passing through the pump 5 is fitted to a curved track mounted concentrically with a rotor carrying three rollers. As the rollers rotate, they flatten the tube against the track at the points of contract. This "flats" move the fluid by positive displacement.
  • Figure 1 For clarity, only the pump inlet and valve inlet portions of tubes 6 and 7 are illustrated in Figure 1.
  • the pump is electrically activated and controlled by a microprocessor 14.
  • the user can choose among different fixed doses via a dose selector button 15 as illustrated in Figure 2.
  • the pack includes a button 16 which allows the user to deliver a variable amount of fluid.
  • the pump is driven by a motor 17 powered by disposable batteries 18 and 19 which are placed in a mounting plate 20 in the bottom unit. The flow is controlled by the number of turns of the motor 17.
  • the pack comprises an automatic electrical supply cut off button 21, which is activated when the apparatus rests on a surface (in order to avoid accidental dosing of the fluids).
  • the pack is also provided with a retro-pumping system (not illustrated) which acts at the end of each dose in order to prevent dripping.
  • the detergent pack is used for storage and dispensing of two or more detergent products or auxiliaries.
  • the detergent products or auxiliaries generally comprise one or more organic solvents and can additionally comprises surfactant, bleach, enzyme, enzyme stabilising components, thickener, etc.
  • PAP N.N- Pthaloylaminoperoxycaproic acid Termamyl ⁇ -amylase available from Novo Nordisk A/S
  • Examples 1 to 8 illustrate the use of a combination of an automatic dishwashing liquid detergent and an organic solvent composition for removing cooked-, baked- and burnt-on soils.
  • the two-component compositions are stored in a dual-compartment storage container having an electrically operated pump as described herein with reference to Figure 1 and delivered at a feed ratio (dishwashing liquid detergent: organic solvent composition) of 1 : 1.
  • the compositions of examples 1 to 8 are used to wash the following dishware load according to the procedure described herein below.
  • the load comprises different soils and different substrates: lasagne baked for 2 hours at 140°C on Pyrex, lasagne cooked for 2 hours at 150°C on stainless steel, potato and cheese cooked for 2 hours at 150°C on stainless steel, egg yolk cooked for 2 hours at 150°C on stainless steel and sausage cooked for 1 hour at 120°C followed by 1 hour at 180°C.
  • the load is washed in a 5 litre liquor capacity Bosch 6032 dishwashing machine, at 55°C without prewash, using 40 ml of the compositions given in Examples 1 to 8.
  • the two-component compositions of examples 1 to 8 provide excellent removal of cooked-on, baked-on and burnt-on food soils.
  • the above examples 1 to 8 were repeated in a modified detergent pack using a dishwashing liquid detergent: organic solvent composition feed ratio of 4:1 with similar results.

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  • Chemical & Material Sciences (AREA)
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  • Engineering & Computer Science (AREA)
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  • Organic Chemistry (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Detergent Compositions (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
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Abstract

La présente invention concerne un emballage de détergent destiné à être utilisé avec une machine à laver la vaisselle, et qui comprend au moins deux produits détergents ou auxiliaires, un organe (1, 2) de stockage comprenant des parties séparées mais associées contenant ces produits, un organe d"apport de doses de ces produits dans le même cycle ou dans des cycles différents d"une machine à laver la vaisselle, cet organe d"apport comprenant un organe (5) permettant de distribuer des doses de ces produits, et un organe (14) permettant de commander le débit relatif de distribution de ces produits en dehors de l"organe de stockage (1, 2).
PCT/US2000/034910 2000-07-19 2000-12-21 Emballage de detergent Ceased WO2002008509A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AU2001222876A AU2001222876A1 (en) 2000-07-19 2000-12-21 Detergent pack
US09/906,479 US6557732B2 (en) 2000-07-19 2001-07-16 Detergent pack
US09/906,295 US20020142931A1 (en) 2000-07-19 2001-07-16 Gel form automatic dishwashing compositions, methods of preparation and use thereof
AU2001280606A AU2001280606A1 (en) 2000-07-19 2001-07-18 Gel form automatic dishwashing compositions, methods of preparation and use thereof
MXPA03000488A MXPA03000488A (es) 2000-07-19 2001-07-18 Composiciones para el lavado automatico de trastes en forma de gel, metodos de preparacion y uso de las mismas.
PCT/US2001/022707 WO2002006438A1 (fr) 2000-07-19 2001-07-18 Compositions se presentant sous forme de gel pour lave-vaisselle automatique, leurs procedes de preparation et d'utilisation
JP2002512332A JP2004506749A (ja) 2000-07-19 2001-07-18 ゲル状自動食器洗浄用組成物、それらの調製方法、及びそれらの使用
EP01959009A EP1305394A1 (fr) 2000-07-19 2001-07-18 Compositions se presentant sous forme de gel pour lave-vaisselle automatique, leurs procedes de preparation et d'utilisation
CA002415304A CA2415304A1 (fr) 2000-07-19 2001-07-18 Compositions se presentant sous forme de gel pour lave-vaisselle automatique, leurs procedes de preparation et d'utilisation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
USPCT/US00/19619 2000-07-19
PCT/US2000/019619 WO2002008370A2 (fr) 2000-07-19 2000-07-19 Composition de nettoyage
USPCT/US00/20255 2000-07-25
PCT/US2000/020255 WO2002008371A2 (fr) 2000-02-17 2000-07-25 Composition de lavage

Publications (1)

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WO2002008509A1 true WO2002008509A1 (fr) 2002-01-31

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PCT/US2000/019619 Ceased WO2002008370A2 (fr) 2000-02-17 2000-07-19 Composition de nettoyage
PCT/US2000/034910 Ceased WO2002008509A1 (fr) 2000-07-19 2000-12-21 Emballage de detergent
PCT/US2000/034908 Ceased WO2002008375A1 (fr) 2000-07-19 2000-12-21 Composition de lavage
PCT/US2000/034906 Ceased WO2002008374A1 (fr) 2000-07-19 2000-12-21 Composition de nettoyage
PCT/US2000/034907 Ceased WO2002008373A1 (fr) 2000-07-19 2000-12-21 Composition de nettoyage
PCT/US2000/034909 Ceased WO2002008376A1 (fr) 2000-07-19 2000-12-21 Composition de lavage

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PCT/US2000/019619 Ceased WO2002008370A2 (fr) 2000-02-17 2000-07-19 Composition de nettoyage

Family Applications After (4)

Application Number Title Priority Date Filing Date
PCT/US2000/034908 Ceased WO2002008375A1 (fr) 2000-07-19 2000-12-21 Composition de lavage
PCT/US2000/034906 Ceased WO2002008374A1 (fr) 2000-07-19 2000-12-21 Composition de nettoyage
PCT/US2000/034907 Ceased WO2002008373A1 (fr) 2000-07-19 2000-12-21 Composition de nettoyage
PCT/US2000/034909 Ceased WO2002008376A1 (fr) 2000-07-19 2000-12-21 Composition de lavage

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EP (5) EP1305383B1 (fr)
JP (4) JP3962327B2 (fr)
AT (4) ATE342336T1 (fr)
AU (5) AU2001224494A1 (fr)
CA (4) CA2414133C (fr)
DE (1) DE60031309T2 (fr)
ES (6) ES2306676T3 (fr)
MX (4) MXPA03000490A (fr)
WO (6) WO2002008370A2 (fr)

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AU2001222874A1 (en) 2002-02-05
ES2225589T3 (es) 2005-03-16
WO2002008376A1 (fr) 2002-01-31
EP1305389B1 (fr) 2006-10-11
MXPA03000492A (es) 2003-06-24
CA2416327C (fr) 2008-07-22
ATE395405T1 (de) 2008-05-15
CA2416326A1 (fr) 2002-01-31
EP1305389A1 (fr) 2003-05-02
MXPA03000490A (es) 2003-06-24
ES2306676T3 (es) 2008-11-16
WO2002008370A3 (fr) 2003-10-16
AU2001222876A1 (en) 2002-02-05
AU2001224494A1 (en) 2002-02-05
ES2339420T3 (es) 2010-05-20
ATE342336T1 (de) 2006-11-15
CA2414140A1 (fr) 2002-01-31
DE60031309D1 (de) 2006-11-23
EP1305390B1 (fr) 2008-05-14
AU2001222873A1 (en) 2002-02-05
AU2001222875A1 (en) 2002-02-05
CA2414140C (fr) 2008-06-03
ATE481471T1 (de) 2010-10-15
JP2004515569A (ja) 2004-05-27
ES2273742T3 (es) 2007-05-16
ES2352670T3 (es) 2011-02-22
EP1305383A1 (fr) 2003-05-02
MXPA03000491A (es) 2003-06-24
CA2414133A1 (fr) 2002-01-31
ATE455836T1 (de) 2010-02-15
EP1493803B1 (fr) 2006-06-07
JP2004506750A (ja) 2004-03-04
ES2280389T3 (es) 2007-09-16
CA2416327A1 (fr) 2002-01-31
DE60031309T2 (de) 2007-05-24
EP1305388A1 (fr) 2003-05-02
MXPA03000493A (es) 2003-06-24
EP1493803A1 (fr) 2005-01-05
JP2004509175A (ja) 2004-03-25
WO2002008373A1 (fr) 2002-01-31
EP1305388B1 (fr) 2010-09-15
EP1305390A1 (fr) 2003-05-02
WO2002008370A2 (fr) 2002-01-31
WO2002008375A1 (fr) 2002-01-31
JP3962327B2 (ja) 2007-08-22
CA2414133C (fr) 2008-11-04
JP2004509176A (ja) 2004-03-25
EP1305383B1 (fr) 2010-01-20
WO2002008374A1 (fr) 2002-01-31

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