WO2000006689A9 - Zusammensetzung zur verwendung in einem waschmaschine - Google Patents
Zusammensetzung zur verwendung in einem waschmaschineInfo
- Publication number
- WO2000006689A9 WO2000006689A9 PCT/TR1999/000035 TR9900035W WO0006689A9 WO 2000006689 A9 WO2000006689 A9 WO 2000006689A9 TR 9900035 W TR9900035 W TR 9900035W WO 0006689 A9 WO0006689 A9 WO 0006689A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition according
- cavity
- composition
- particle
- core
- 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
Links
Classifications
-
- 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
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
-
- 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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- 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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3753—Polyvinylalcohol; Ethers or esters thereof
Definitions
- the present invention relates to a composition for use in a washing machine and a method for using it.
- washing programs essentially consist of the following basic steps: pre-wash cycle; Main wash; several rinses; and spin cycle. While the actual detergent, which is supposed to have a cleaning effect, is added at the beginning of the main wash cycle (or possibly at the start of the pre-wash cycle), special detergents with different functions can be used in the rinse cycles. These special rinse aid agents should primarily bring additional laundry treatment benefits.
- a non-exhaustive list of such agents includes, but is not limited to: fragrances (pleasant smell of laundry), fabric softener (softness of laundry), antistatic agents (reducing or preventing the build-up of static electricity in the laundry), agents to restore the ability of the laundry Moisture-absorbent laundry, mild acids (removal of incrustations or neutralization of alkalinity), bleaching agents, either based on oxygen or chlorine (improving the cleaning effect), disinfectants, agents for the long-term protection of both the laundry and the person wearing the laundry against insects or mites , Agents for improved removal of grease soiling, agents for providing anti-crease, optical brighteners, ironing aids (to facilitate ironing of the laundry), agents for inhibiting dye transfer, enzymes such as cellulases, lipases, etc., for special purposes.
- the aim of the present invention was to compare the reimer function and the function (s) of the substance (s) to be added in the rinse cycles while maintaining the performance as constant as possible the results, which can be achieved with a separate dosage, in one product or to allow the addition of further substances in the rinse cycles.
- detergent tablets for use as detergents are known, in which, among other things, it is provided to combine two components with different functionality.
- a structure is provided from an enveloping shell, which is composed, for example, of two shell halves, which consist of a cleaning agent, and a cavity enclosed by the shells, which contains additives such as plasticizers, whitening agents, etc.
- British Patent 1,390,503 discloses a liquid detergent which contains capsules which are insoluble in the composition but which release their contents when the composition is diluted with water. This goal is achieved in that the capsules are coated with a substance which has poor solubility in water solutions with high ionic strength, but becomes soluble when the ionic strength is reduced by dilution. It is pointed out that this technique can be used to include materials in the liquid detergent that are unstable in the liquid detergent itself, or would create instability if added directly. It is also suggested to use the technique to delay the release of a specific substance. The use in detergents is addressed. The encapsulated material is removed within 2 minutes after diluting the detergent with water, i.e. already released in the main wash cycle.
- US Pat. No. 4,082,678 describes a fabric conditioning product which comprises a closed container which contains a releasable agent which serves to insoluble or non-dispersible an inner container disposed in the container, which is normally water-soluble or water-dispersible make, wherein the inner container contains a fabric conditioning agent.
- the inner container consists of a substance whose solubility in water is strongly dependent on the ionic strength or the pH of the medium, and the agent which serves to render the inner container insoluble is a means of controlling the pH or the ionic strength.
- Japanese patent application KOKAI 60-141705, 61-28440, 61-28441, 61-28596, 61-28597 and 61-28598 describe a process for the preparation of pH-sensitive microcapsules for use in detergents.
- the pH-sensitive coating is a copolymer of the following monomers:
- R is hydrogen or a methyl group
- R 1 and R 2 are each an alkyl group with 1-3 carbon atoms and x is an integer from 1 -4;
- the polymers described are said to be insoluble at pH 9.5 or more and to become soluble at pH 8.5 or less.
- Different ingredients of detergent compositions are described, which can be coated successfully and effectively by the polymers described.
- the aim of the invention described there is to protect substances that are only supposed to develop their function in the rinse cycle until the beginning and then to release them as soon as possible.
- a disadvantage of the solution described in these Japanese patent applications is that the coated particles are in direct contact with non-alkaline wash water at the beginning of the washing cycle, which can result in the protective coating becoming detached.
- a washing aid which is surrounded by a water-soluble coating which is obtained by mixing polyvinyl acetal dialkylaminoacetate and at least one organic acid which is solid at room temperature.
- This protective covering is intended to protect the washing aid during the main wash cycle and to release it during the rinse cycles.
- the described Binding reacts to the change in pH between the main wash and the rinse cycle.
- the appropriately coated particles are mixed with conventional powder detergent.
- the protective covering may detach at the beginning of the washing cycle.
- the European patent application EP 0 481 547 AI discloses multi-layer dishwasher tablets with a core, a separating layer surrounding the core and an outer layer for the sequential release of the ingredients of the different layers. Basically, two tasks are to be solved with this tablet, namely 1) incompatible materials can be formulated together in a single tablet and released at different times in order to avoid mutual interference; and 2) Compositions that are designed to perform their functions at different times can be formulated in a single tablet.
- a major disadvantage of this prior art is that the temperature and / or especially the contact time in the washing solution is used as a triggering factor for the initiation of the dissolution of the coating layer, ie temperature-sensitive materials are used for the material of the coating. Since the temperature / time course in washing machines can vary greatly depending on the selected program, it would be difficult, if not impossible, to choose a material for the cover that can be used for all programs of modern washing machines.
- EP 0 481 547 AI itself admits (page 7, lines 37-43) that the selection of the material of the cladding layer must take into account device-specific and program-specific features. The practical usability of the products described is therefore clearly limited. Use in washing machines is not mentioned in the document.
- PCT application WO 95/29982 discloses a delayed-release dishwashing detergent in the form of a non-ionic surfactant, this non-ionic surfactant, together with an inorganic builder salt, forming a core particle which is provided with a wax-like coating to compensate for the delayed release Ensure release.
- This coating is a substance that does not melt at the working temperatures that can be found in the cleaning cycle, but is chemically disintegrated so gradually at alkaline pH that an effective amount of the rinse aid remains at the end of the main cleaning cycle and is transferred into the rinse cycle. Use in washing machines is not mentioned in the document.
- a disadvantage of the solution presented in this document is that the coating is made soluble by chemical saponification at alkaline pHs, so that the point in time at which the rinse aid substance is released from the core is a function of both the temperature and the length of the main cleaning cycle .
- the patent application does not contain any teaching on how to formulate a product with which the rinse aid is released in all washing programs of every device type in the rinse cycle. After all, the product is a mixture of granular detergent and granular rinse aid particles.
- the present invention is based on the object of creating a generic composition which can be used for most washing programs of various types of washing machine equipment and in each of these cases the substance (s) which have their effect essentially only in the rinse cycles should unfold, only in these releases.
- the aim is to achieve this without largely restricting the selection for the detergent used, the substance (s) used for the rinse cycles and other ingredients of the composition.
- this object is achieved with a generic composition which is characterized by a basic composition which essentially functions in the main wash cycle of the washing machine; and at least one particle, with at least one core, which comprises at least one substance which functions essentially in the rinse cycles of the washing machine; and a sheath substantially completely surrounding the core (s), comprising at least one compound whose solubility increases with decreasing concentration of a specific compound in the surrounding medium; means are provided to prevent a substantial dissolution of the covering or a substantial detachment of the covering from the core or from the cores until the start of the rinsing cycles.
- the concentration of the specific compound in the local environment of the particle (s) is sufficiently high until the start of the rinsing cycles that a substantial dissolution of the covering and a substantial detachment of the covering from the core or to prevent from the cores.
- the particle is (are) coated with a substance which - largely independently of the concentration of the specific compound in the surrounding medium; in the course of the washing cycles of the washing machine.
- the base composition is in the form of a tablet.
- An embodiment of the invention proposes that the at least one particle is arranged in or on the tablet in such a way that the concentration of the specific compound in the local environment of the particle (s) is sufficiently high until the tablet is essentially completely dissolved to prevent substantial disintegration of the sheath or substantial detachment of the sheath from the core or cores.
- the or all of the particles is or are received in at least one cavity of the tablet that is completely surrounded by the base composition.
- the at least one cavity may contain one or more particles which alone or taken together have (have) essentially the same volume as the cavity.
- the at least one cavity has a larger volume than the or all of the particles that are or are accommodated in the respective cavity.
- the particle (s) is (are) loosely arranged inside the cavity.
- the particle (s) is (are) fixed in the interior of the cavity, preferably by an adhesive.
- the cavity is arranged essentially centrally in the interior of the tablet.
- the invention also proposes that the tablet have a single, substantially spherical cavity.
- a single, essentially spherical particle is accommodated in the cavity, the outside diameter of which is smaller than the inside diameter of the cavity.
- the or all of the particles are or are received in at least one cavity of the tablet which is only partially surrounded by the base composition.
- the cavity is a depression in one of the surfaces of the tablet in which the particle (s) is (are) at least partially received.
- the particle (s) is (are) received in the cavity or recess such that it (they) do not protrude above the surface (s) of the tablet.
- the invention proposes that the cavity or the depression contains only a single particle, the volume and shape of which in the region of the cavity or the depression corresponds substantially to the volume and the shape of the cavity or the depression and that this) essentially completely.
- the cavity or the depression has an essentially circular cross-sectional area parallel to one of the surface (s) to which it opens or in which it is arranged.
- the invention also proposes that the cavity or recess only open to the surface (s) to the extent that the particle (s) contained therein does not pass through the opening (s) of the cavity or recess can (can).
- the particle (s) is (are) loosely arranged in the cavity or in the depression.
- the particle (s) is (are) fixed in the cavity or in the depression, preferably by means of an adhesive.
- the base composition comprises at least one composition which is selected from the group consisting of a detergent composition, a water softener composition and a wash booster composition.
- the sheath comprises at least one compound which is at the concentration of the specific compound End of the main wash of the washing machine is not or only slightly soluble and shows such a sufficient solubility in the concentration of the specific compound in the rinse cycles that it is so largely dissolved in the rinse cycles or detached from the core (from the cores) that an at least partially Leakage of the core material into the medium of the rinse cycles is made possible.
- solubility of the compound increases with a falling OH "ion concentration and thus a decreasing pH in the surrounding medium.
- the compound shows no or only a low solubility at a pH above 10 and that it has such a sufficient solubility at a pH below 9 that it is largely dissolved in the rinse cycles or from the core (from the cores) is replaced so that an at least partial escape of the core material into the medium of the rinse cycles is made possible.
- the compound comprise a polymer, preferably a pH sensitive polymer, which comprises at least one repeating unit which has at least one basic function which is not part of the backbone chain of the polymer.
- the polymer comprises at least one repeating unit based on a compound selected from the group consisting of vinyl alcohol derivatives, acrylates or AUcylacrylaten, which comprise said basic function.
- the invention also provides that the polymer is a carbohydrate that is functionalized with said basic function.
- the above-mentioned basic function is preferably an amine, particularly preferably a secondary or tertiary amine.
- the repeating unit is based on a compound with the following formula ITI:
- G is a linking group which is selected from -COO-, -OCO-, -CONH-, - NHCO -, - NHCONH -, - NHCOO -, -OCONH - or - OCOO -, R, independently of one another hydrogen or an alkyl group with 1-3 carbon atoms, R 2 is independently hydrogen or an alkyl group with 1-5 carbon atoms and x is an integer from 1 to 6.
- the repeating unit is preferably based on a compound with the following formula rv:
- R i is independently hydrogen or an alkyl group with 1-3 carbon atoms
- R is independently hydrogen or an alkyl group with 1 -5 carbon atoms
- x is an integer from 1 to 6.
- the basic function is an imine or a basic aromatic N-containing group, preferably a pyridine group or one.
- the pH-sensitive polymer is a polymer derived from chitosan.
- the invention proposes that the compound comprise K-carrageenan.
- the core (s) comprise at least one material selected from the group consisting of fragrances, fabric softeners, antistatic agents, agents for restoring the ability of the laundry to Moisture absorption, mild acids, bleaching agents, disinfectants, agents for the long-term protection of both the laundry and the person wearing the laundry from insects or mites, agents for improved removal of grease soiling, agents for providing anti-crease, optical brighteners, ironing aids, agents for inhibiting the Dye transfer and enzymes exist.
- the core or at least part of the cores is in the form of an encapsulated liquid.
- the core or at least part of the cores is in a solid form.
- the invention further relates to a method for carrying out a washing cycle in a washing machine, in which the composition according to the invention is added to the medium in the washing machine at a suitable point in time during the prewash or main wash cycle.
- this sufficient concentration of the specific ion by the addition of a further composition, such as a detergent composition, is provided to the medium of the main wash cycle at a suitable time.
- the composition according to the invention is distinguished by the fact that it delivers excellent results both in the main wash cycle and in the rinse cycles of a washing machine.
- the basic composition e.g. in the form of a tablet, is dissolved during the main wash cycle and can develop its intended effect (cleaning, water softening, washing reinforcement, etc.).
- the particle according to the invention contains that substance or those substances which are intended to develop their main function in the washing cycles of the washing machine. This substance (s) is (are) protected by an envelope which, at the concentration specific compound, e.g. the pH value and the temperature of the main wash cycle are stable and do not dissolve or dissolve only insignificantly.
- the protection of the core material is effective from the addition of the composition according to the invention to the water until the start of the rinse cycles, i.e. even before the wash liquor reaches a sufficiently high concentration of the specific compound, as will be explained in more detail below.
- the particles can be connected to the basic composition, for example coated, by means of a granulation method or a similar process by means of a granulation process or a similar process.
- the particles can be surrounded with a further protective jacket, which consists, for example, of a compound soluble in water irrespective of the concentration of the specific compound.
- the particles according to the invention should be chosen so large that they are at least not to a significant extent during the pumping after the main wash cycle and the first rinse cycle, be discharged from the washing machine or metered in by metering devices.
- Figure 1 shows a first embodiment of the composition according to the invention in cross section.
- Fig. 5 shows a fifth embodiment of the composition according to the invention in cross section.
- Fig. 1 shows a tablet 1, which consists of two half-tablets 2 and 3, which may have different or the same composition.
- An approximately hemispherical recess 4 or 5 can be seen approximately in the center of both half-tablets, which when the tablet 1 is joined together result in an approximately spherical cavity.
- particle 6 can also completely fill the entire cavity of the tablet and rest on the walls thereof. If the interior diameter of the cavity is slightly larger than the outer diameter of the particle 6, this can either be loosely received in the cavity or fixed by an adhesive attached in the space.
- the manufacturing process e.g. the pressing of the individual components in successive steps, a deformation and possibly consequent damage to the core (the cores) and / or the casing, which could reduce the protective effect of the casing of the core (the cores).
- the particle By preventing the particle from being pressurized at any stage of the manufacturing process, it can also be reliably prevented from "bleeding" into the material of the cladding and base composition at a particular composition of the core (s) comes.
- certain compositions of the casing 9 or the base composition 2, 3 it may be advantageous to avoid intimate full-surface contact, since otherwise undesirable reactions could occur in the boundary layers.
- the surface of the particle is at most partially in direct contact with the surface of the basic composition of the tablet surrounding it. This can be done in the ways specifically described and illustrated in this application, but also in any other way with which the intended purpose is achieved. Examples are the loose arrangement of the smaller particle in a larger cavity, the fixing of a smaller particle in the larger cavity in such a way that there is no or only partial contact between the particle and the base composition, the application of a protective coating over the covering of the core according to the invention , Etc.
- the term "local environment” as used in connection with the particle according to the invention is intended to denote the immediate environment around this particle.
- the concentration of the specific compound in this local environment of the particle is the determining factor for its stability. In the preferred embodiments in In tablet form, this concentration in the local environment of the particle is determined at least until the tablet is essentially completely dissolved by molecules dissolving from it.
- the origin of the “specific compound” is therefore preferably - at least in the initial phase of the main wash cycle - a compound from the basic composition forming the tablet or is generated by it in the surrounding medium.
- the usual basic detergents are OH " ions, the concentration of which can be expressed as pH.
- a (e.g. basic) detergent composition is used as the base composition, but e.g. a water softener composition or a washing booster composition
- the protection of the coating of the particle by a sufficiently high concentration of the specific compound in the local environment of the particle may only be ensured until the base composition, e.g. the tablet is completely dissolved, namely in cases where the base composition is unable to do so. to provide a sufficiently high corresponding concentration in the wash liquor.
- the sufficiently high concentration in the wash liquor is achieved by dissolving the actual detergent (or another special additive).
- a conventional adhesive can be used to fix the particle in the cavity, but also other compositions and agents that serve the same purpose, for example mechanical fixation, such as e.g. sufficient friction between the tablet and particles in at least some places or a plug connection between the tablet and particles.
- mechanical fixation such as e.g. sufficient friction between the tablet and particles in at least some places or a plug connection between the tablet and particles.
- other compounds which preferably melt or dissolve during the main wash cycle are also possible as fixing agents between the particle and the tablet.
- the cavity in the tablet or the particle accommodated therein various other geometric shapes are possible for the design of the cavity in the tablet or the particle accommodated therein, such as, for example, ellipsoid, cylinder, etc.
- the shape and size of the cavity in the tablet and that of the particle accommodated therein do not have to be correspond with each other.
- a cylindrical particle can be accommodated in a spherical cavity. All other possible combinations are within the present invention conceivable. It is also possible to fill the cavity not only with one particle, but with several smaller particles.
- FIG. 2 shows a second embodiment of the composition according to the invention on the basis of a conventional 2-layer tablet 1.
- the upper half-tablet 3 consists of two parts which both provide a sufficient cavity 5 for receiving the particle 6 and an opening to the side 11 of the tablet.
- the particle 6 is therefore not completely surrounded by the basic composition of the tablet 1, so that it is visible from the outside in the interior of the tablet 1.
- the particle in the cavity 5 can either be loosely received (provided the appropriate selection of the size of the particle 6 on the one hand and the size of the opening of the cavity 5 to the side 11 of the tablet ensures that the particle or particles in the cavity is not can or can pass through the opening) or be fixed in the interior of the cavity 5 by appropriate means, such as, for example, glue.
- a third possible embodiment results from FIG. 3.
- the basis is again a two-layer tablet.
- a recess 4 is formed in the upper layer 2 by means of a suitable device.
- the particle 6 is introduced, which in this case, since the recess on the side 11 of the tablet 1 is open to the extent that it would be possible for the particle to fall out of the recess without fixation, for example with an adhesive 10 or fixing intermediate layer or mechanically (for example by friction) in the recess.
- this principle can also be applied to single-layer tablets.
- the depression can have a substantially circular cross section parallel to side 11.
- any number of other cross sections is also conceivable, for example any polygon.
- the particle 6 accommodated in the depression 4 can assume any shape (such as ellipsoid, cylinder, cuboid, etc.) (and is independent of the shape of the depression 4). It can also be considered to fix the particle 6 'in a cavity open on both sides in the tablet, for example in a cylindrical hole 4' passing through a tablet body 1 ' consisting of a layer 2', in which a corresponding hole cylindrical particle 6 'is fixed (Fig. 4a and b).
- FIG. 5 A further possible embodiment results from FIG. 5.
- This is essentially structured like the embodiment according to FIG. 3.
- the particle 6 "does not only contain a core (as in FIG. 4) but a multitude of Cores 8 "which are embedded overall in a casing 9".
- the release of an acid in the washing cycles of a washing machine is intended both to remove incrustations and to neutralize alkaline residues.
- Weak acids such as amidosulfonic acid and or maleic acid, are advantageously used for this purpose.
- These materials are usually Solids that can be provided directly with the intended coating, the coating process possibly having to be based on the corresponding substance (s).
- the manufacturing process is as follows:
- a mixture of 1.05 g of amidosulfonic acid and 0.45 g of maleic acid is formed into a tablet in a rotary press under a pressure of 890 kg / cm 2 .
- fragrance 0.0525 g is absorbed onto 0.1975 g of finely divided silica to give a free-flowing granular material.
- the resulting 0.25 g is mixed with 0.6 g of microcrystalline cellulose and 0.15 g of cross-linked polyvinylpyrrolidone.
- the mixture is tableted in a round press with an inner diameter of 10 mm under a pressure of 1310 kg / cm 2 to give an elliptical tablet with a height of 13.1 mm and a weight of approx. 1 g.
- fragrances which are usually liquids, can also be presented as capsules containing the fragrance.
- such cores can be made as follows: 1 g of chlorine bleach, eg pure sodium dichloroisocyanurate, can be compressed into a tablet in a suitable press under a pressure of 5,600 kg / cm 2 .
- chlorine bleach eg pure sodium dichloroisocyanurate
- the core comprises several substances which are intended to develop their respective effects in the washing cycle of a washing machine.
- it is a combination of a fabric softener, an agent for reducing the build-up of static electricity in the fabric and an agent for improving the re-absorption of moisture by the fabric.
- a slurry of 58% urea, 18% dimethyldistearylammonium chloride (DMDSAC) (90%), 8% of a C 9 . n alcohol ethoxylated with 9 moles of ethylene oxide and 16% water was prepared.
- the slurry was spray dried to obtain a granular material with a density of 580 g / l and the following composition: 68.8% by weight urea, 19.2% by weight DMDSAC, 9.5% by weight not -ionic surfactant and 2.5 wt .-% water.
- the material for the coating of the particle core (s), which comprise the substance (s) that function essentially in the rinse cycle, shows solubility , which depends on the concentration of a specific compound selected.
- solubility which depends on the concentration of a specific compound selected.
- concentration values of the specific compound that should be used in the screening of the polymers depend on the formulation of the base composition of the tablet into which the coated particle is to be incorporated.
- the highest concentration value used for the screening process should correspond to the concentration of the selected compound found in the wash liquor after the detergent has completely dissolved. Once this concentration is determined, the lower concentration should be set 20 to 200 times below this higher value.
- the materials to be examined are dissolved in solvents in which they are easily soluble.
- the solutions are distributed on glass plates and then dried at room temperature until they have a constant weight.
- the glass plates are placed in a beaker with test solution at a controlled temperature.
- the solution is then stirred with a magnetic stirrer at a controlled stirring speed. After about 10 minutes, the glass plates are removed from the beaker and dried to constant weight at room temperature. The results are expressed as weight loss [%].
- the screening methods must be adapted to the composition of the detergent, since this has the essential influence on the concentration of the specific compound or pH profile in the wash cycle.
- the aim is to check the degree of solubility of the corresponding materials under different conditions, namely high or low concentration of the specific compound or pH.
- Screening method 1 was carried out using buffer solutions as the medium for the simulation of the wash liquor.
- two buffer solutions were prepared as follows:
- pH 8 buffer solution 500 ml stock solution 500 ml dist. H 2 O 1, 23 gl N NaOH
- pH 10 buffer solution 500 ml stock solution 500 ml dist. H 2 O 32.6 g IN NaOH. Screening procedure 2:
- Screening Procedure 2 was performed on the following detergent formulation to simulate the conditions in different stages of a wash cycle.
- a spray-dried base material was made with the following composition:
- Screening method 3 is used to screen for compounds whose solubility changes depending on the concentration of potassium ions.
- the compounds determined using such screening methods can be used if, as described above, there is a correspondingly high concentration of potassium ions in the main wash cycle, which is correspondingly reduced by dilution in the rinse cycles.
- the screening method 3 was carried out with the following formulation in order to simulate corresponding conditions. Forumulierung:
- the polymer was prepared in the customary manner by bulk polymerization.
- the results of the screening tests were as follows:
- Polymer 1 films were made from a 10% solution in isopropanol.
- the invention is of course not limited to this exemplary polymer, although there is of course already a large variation possibility with regard to the polymers mentioned in Japanese patent applications KOKAI 60-141705, 61-28440, 61-28441, 61-28596, 61-28597 and 61-28597 or can be extended to compounds of the formula TV:
- R i is independently hydrogen or an alkyl group with 1-3 carbon atoms
- R is independently hydrogen or an alkyl group with 1-5 carbon atoms
- x is an integer from 1 to 6.
- G is a linking group which is selected from -COO-, -OCO-, -CO ⁇ H-, - ⁇ HCO-, - ⁇ HCO ⁇ H-, - ⁇ HCOO-, -OCO ⁇ H- or -OCOO-, R, independently of one another hydrogen or an alkyl group with 1-5 carbon atoms and x is an integer from 1 to 6, for example polymers with a repeating unit can also be used, which are based on a compound of the formula V.
- polymer 2 for example a pH-sensitive polymer (“polymer 2”) with the repeating unit VI, which is commercially available from the company SANKYO under the brand name AEA®,
- polymers are (e.g. statistical) polymers derived from chitosan based on the following monomer units IX and X
- K-Carrageenan is represented by the following formula XI:
- Polymer 4 This polymer, designated "Polymer 4", was tested according to screening method 3 described above:
- Example 1 The different cores described in Example 1 were used as the basis for the production of particles according to the invention. These cores were provided individually or in groups (FIG. 5) with a coating in a device for applying a film coating, as is known from the pharmaceutical industry (for example from the companies Loedige, Huettlin, GS, Manesty and Driam).
- the core (s) can first apply a coating before applying this covering Protective cover can be provided.
- a coating such as, for example, cellulose, cellulose derivatives, polyvinyl alcohol, polyvinyl alcohol derivatives and mixtures thereof.
- a protective coating was used in cases 1a, 1b and 1c, a 10% strength by weight aqueous solution of the polyvinyl alcohol Mowiol® 5-88 (Clariant) being used here.
- the core was coated with 0.76 g of such a solution, in the case of example lb 0.40 g of the same solution was used and in the case of example lc 0.29 g of the same solution was used.
- the coating can in principle be applied to the core (s) or protective coating in any quantity and thickness, as long as it is ensured that the coating detaches or dissolves quickly enough in the rinsing cycles so that the core (in the substance (s) contained in the kernels can have their effect (s).
- 1-10% by weight, preferably 4-8% by weight, of the coating material (dry mass) sensitive to ion concentration, based on the mass of the entire particle, is applied.
- the particles according to the invention should preferably have a size such that they are not, or at least not to a considerable extent, removed from the washing machine by the pumping-down processes after the main wash cycle or the individual rinse cycles.
- a size of approximately 1 cm in diameter is usually sufficient for this. Smaller or larger dimensions can of course be chosen as long as the functionality is guaranteed overall.
- Polymer 1 from Example 3 was used as the coating for the further tests and applied as a 10% strength solution of the polymer in 0.055 N aqueous HC1.
- Such a tablet can be produced by compressing the powdery ingredients in machines which are known in principle from the prior art and using operating parameters which are known in principle from the prior art.
- composition of such a tablet is based on commercially available products.
- a detergent tablet, a water softener tablet and a washing intensifier tablet are described below by way of example.
- composition for a detergent tablet can be mixed, for example, on the basis of a detergent formulation as shown in Example 2, Tables 2 and 3.
- the resulting granular composition has a bulk density of about 690 g / 1 and can be tabletted in an appropriate compression under a pressure of 21 kg / cm 2 to give a half-tablet with recess, weighing about 20 g.
- a fixing substance e.g. an adhesive (for example, polyethylene glycol, polyvinyl ether, polyvinyl alcohol, silicate, preferably melted PEG 4000) is applied to the corresponding surface of the half tablet and, if appropriate, also to the particle, and the second half tablet is pressed onto the first half tablet with particles according to the invention.
- an adhesive for example, polyethylene glycol, polyvinyl ether, polyvinyl alcohol, silicate, preferably melted PEG 4000
- the resulting granular composition is tableted under a pressure of 150 kg / cm to give a half-tablet with a recess weighing about 8 g.
- the completion according to the particle according to the invention and the assembly of the half tablets takes place as previously described for the detergent tablet.
- a washing intensifier tablet is produced, the layers of different weights (26/74) having a different composition according to the following table:
- a depression is formed in the upper layer, into which first adhesive or the like and then the particle according to the invention is added.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/744,723 US6727216B1 (en) | 1998-07-29 | 1999-07-29 | Composition for use in a laundry washing machine |
| CA002338658A CA2338658A1 (en) | 1998-07-29 | 1999-07-29 | Composition for use in a water reservoir |
| AU56670/99A AU5667099A (en) | 1998-07-29 | 1999-07-29 | Composition for use in a water reservoir |
| EP99943606A EP1100863A1 (de) | 1998-07-29 | 1999-07-29 | Zusammensetzung zur verwendung in einem wasserreservoir |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19834181.4 | 1998-07-29 | ||
| DE19834181A DE19834181B4 (de) | 1998-07-29 | 1998-07-29 | Zusammensetzung zur Verwendung in einer Waschmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000006689A1 WO2000006689A1 (de) | 2000-02-10 |
| WO2000006689A9 true WO2000006689A9 (de) | 2001-03-01 |
Family
ID=7875733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR1999/000035 Ceased WO2000006689A1 (de) | 1998-07-29 | 1999-07-29 | Zusammensetzung zur verwendung in einem waschmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6727216B1 (de) |
| EP (1) | EP1100863A1 (de) |
| AU (1) | AU5667099A (de) |
| CA (1) | CA2338658A1 (de) |
| DE (1) | DE19834181B4 (de) |
| WO (1) | WO2000006689A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6864875B2 (en) | 1998-04-10 | 2005-03-08 | E Ink Corporation | Full color reflective display with multichromatic sub-pixels |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29823505U1 (de) | 1998-12-05 | 1999-06-17 | Henkel KGaA, 40589 Düsseldorf | Punkttablette |
| ATE305028T1 (de) † | 1999-03-03 | 2005-10-15 | Henkel Kgaa | Verfahren zur herstellung mehrphasiger wasch- und reinigungsmittelformkörper |
| DE19925518B4 (de) * | 1999-06-04 | 2016-06-30 | Henkel Ag & Co. Kgaa | Mehrphasige Wasch- und Reinigungsmittelformkörper mit Parfüm sowie Verfahren zu ihrer Herstellung |
| DE19941266B4 (de) * | 1999-08-31 | 2017-07-13 | Henkel Ag & Co. Kgaa | Formkörper mit speziell geformter Kavität, Verfahren zu dessen Herstellung und Wasch- und Reinigungsverfahren unter Einsatz dieses Formkörpers |
| DE10010760A1 (de) * | 2000-03-04 | 2001-09-20 | Henkel Kgaa | Mehrphasige Wasch- und Reinigungsmittelformkörper mit nicht-gepreßten Anteilen |
| GB0015350D0 (en) † | 2000-06-23 | 2000-08-16 | Reckitt Benckiser Nv | Improvements in or relating to compositions |
| WO2002006431A2 (de) | 2000-07-14 | 2002-01-24 | Henkel Kommanditgesellschaft Auf Aktien | Kompartiment-hohlkörper enthaltend wasch-, reinigungs- oder spülmittelportion |
| GB0018525D0 (en) * | 2000-07-28 | 2000-09-13 | Reckitt Benckiser Nv | Use of new floating particles in dishwashing compositions |
| DE10058646A1 (de) * | 2000-11-25 | 2002-02-28 | Henkel Kgaa | Waschmittel-,Spülmittel-oder Reinigungsmittel-Portion mit kontrollierter Wirkstoff-Freisetzung |
| GB0119710D0 (en) * | 2001-08-13 | 2001-10-03 | Unilever Plc | Cleaning and rinsing of textile fabrics |
| AU2003200070B2 (en) * | 2002-01-25 | 2008-01-24 | Rohm And Haas Company | Triggered response compositions |
| DE10209156A1 (de) * | 2002-03-01 | 2003-09-18 | Henkel Kgaa | Formkörper mit nachträglicher Tensiddosierung |
| CA2435735C (en) * | 2002-07-31 | 2008-10-14 | Rohm And Haas Company | Triggered response compositions |
| DE10243311A1 (de) * | 2002-09-18 | 2004-04-01 | Henkel Kgaa | Befüllte Muldentabletten und Verfahren zu ihrer Herstellung |
| US20040147427A1 (en) * | 2002-11-14 | 2004-07-29 | The Procter & Gamble Company | Rinse aid containing encapsulated glasscare active salt |
| DE10253479A1 (de) * | 2002-11-16 | 2004-06-03 | Henkel Kgaa | Befüllte Muldentabletten und Verfahren zu ihrer Herstellung II |
| DE10313172B4 (de) * | 2003-03-25 | 2007-08-09 | Henkel Kgaa | Gestaltsoptimierte Reinigungsmitteltabletten |
| DE10338882B4 (de) * | 2003-08-23 | 2007-08-02 | Henkel Kgaa | Waschmittel mit steuerbarer Aktivstofffreisetzung |
| DE102005025964A1 (de) * | 2005-06-03 | 2006-12-07 | Henkel Kgaa | Wasch- oder Reinigungsmittel |
| DE102006029837A1 (de) * | 2006-06-27 | 2008-01-03 | Henkel Kgaa | Wasch- oder Behandlungsmittelportion II |
| GB201010374D0 (en) * | 2010-06-21 | 2010-08-04 | Mtp Innovations Ltd | Disinfectant composition |
| MX2016003090A (es) | 2013-09-27 | 2016-05-31 | Rohm & Haas | Desintegracion activada por fuerza ionica de peliculas y de particulas. |
| EP3033384A1 (de) | 2013-09-27 | 2016-06-22 | Rohm and Haas Chemicals LLC | Wasserdispergierbare folien zum verpacken von formulierungen mit hohem wassergehalt |
| US20180303725A1 (en) * | 2017-04-21 | 2018-10-25 | Robert Nathan Alder | Customizable dissolvable objects and related methods of manufacture |
| EP3918126B1 (de) | 2019-01-31 | 2024-05-15 | Ecolab USA Inc. | System zur wiederverwendung von spülwasser und verwendungsverfahren |
| EP3918127B1 (de) | 2019-01-31 | 2024-11-27 | Ecolab USA Inc. | Steuerung für ein system zur wiederverwendung von spülwasser und verwendungsverfahren |
| EP3918128B1 (de) | 2019-01-31 | 2025-08-27 | Ecolab USA Inc. | Waschmaschinenkit zur steuerung von wasserpegeln, rezirkulation und sprühen von chemikalien |
| WO2020160425A1 (en) | 2019-01-31 | 2020-08-06 | Ecolab Usa Inc. | Controlling water levels and detergent concentration in a wash cycle |
| CA3140905A1 (en) * | 2019-06-21 | 2020-12-24 | Ecolab Usa Inc. | Solid nonionic surfactants compositions |
| USD1010228S1 (en) * | 2020-10-23 | 2024-01-02 | Henkel Ag & Co. Kgaa | Dosage packaging for washing agents |
| USD1035452S1 (en) * | 2021-03-12 | 2024-07-16 | Henkel Ag & Co. Kgaa | Dosage packaging for washing agents |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE236030C (de) | ||||
| FR2035622A5 (de) | 1969-02-18 | 1970-12-18 | Lion Fat Oil Co Ltd | |
| GB1390503A (en) | 1971-03-30 | 1975-04-16 | Unilever Ltd | Liquid detergent compositions |
| US3924622A (en) * | 1973-10-11 | 1975-12-09 | Mead Johnson & Co | Zero-order release method |
| US4082678A (en) | 1976-11-10 | 1978-04-04 | The Procter & Gamble Company | Fabric conditioning articles and process |
| JPS60141706A (ja) | 1983-12-28 | 1985-07-26 | Nippon Zeon Co Ltd | ジエン系重合体ゴムの改質方法 |
| US4801636A (en) * | 1987-03-24 | 1989-01-31 | The Clorox Company | Rinse soluble polymer film composition for wash additives |
| US4972017A (en) * | 1987-03-24 | 1990-11-20 | The Clorox Company | Rinse soluble polymer film composition for wash additives |
| US4765916A (en) * | 1987-03-24 | 1988-08-23 | The Clorox Company | Polymer film composition for rinse release of wash additives |
| GB9015503D0 (en) * | 1990-07-13 | 1990-08-29 | Unilever Plc | Detergent composition |
| US5133892A (en) * | 1990-10-17 | 1992-07-28 | Lever Brothers Company, Division Of Conopco, Inc. | Machine dishwashing detergent tablets |
| JP3135066B2 (ja) * | 1991-05-14 | 2001-02-13 | エコラボ インコーポレイテッド | 2部式薬剤濃縮物 |
| US5453216A (en) | 1994-04-28 | 1995-09-26 | Creative Products Resource, Inc. | Delayed-release encapsulated warewashing composition and process of use |
| JPH09175992A (ja) * | 1995-12-26 | 1997-07-08 | Kao Corp | カプセル含有錠剤型浴用剤 |
| ATE287944T1 (de) * | 1997-11-26 | 2005-02-15 | Procter & Gamble | Waschmitteltablette |
| DK0960188T3 (da) * | 1997-11-26 | 2002-09-23 | Procter & Gamble | Opvaskefremgangsmåde |
| DE19834172A1 (de) * | 1998-07-29 | 2000-02-03 | Benckiser Nv | Zusammensetzung zur Verwendung in einem Wasserreservoir |
-
1998
- 1998-07-29 DE DE19834181A patent/DE19834181B4/de not_active Expired - Fee Related
-
1999
- 1999-07-29 EP EP99943606A patent/EP1100863A1/de not_active Ceased
- 1999-07-29 WO PCT/TR1999/000035 patent/WO2000006689A1/de not_active Ceased
- 1999-07-29 CA CA002338658A patent/CA2338658A1/en not_active Abandoned
- 1999-07-29 AU AU56670/99A patent/AU5667099A/en not_active Abandoned
- 1999-07-29 US US09/744,723 patent/US6727216B1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6864875B2 (en) | 1998-04-10 | 2005-03-08 | E Ink Corporation | Full color reflective display with multichromatic sub-pixels |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19834181A1 (de) | 2000-02-03 |
| WO2000006689A1 (de) | 2000-02-10 |
| DE19834181B4 (de) | 2006-06-01 |
| CA2338658A1 (en) | 2000-02-10 |
| AU5667099A (en) | 2000-02-21 |
| EP1100863A1 (de) | 2001-05-23 |
| US6727216B1 (en) | 2004-04-27 |
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