DE60106939T2 - WATER-SOLUBLE CONTAINERS - Google Patents

Abstract

The method involves forming open container made up of water soluble film. The container is then partially filled with aqueous or non-aqueous liquid comprising gas releasing components such as bleaching agent. After sealing, the container is inflated. The bleaching component of oxygen or chlorine type comprises a mixture of compounds which react in the presence of water to produce the gas. The gas which inflates the container is carbon dioxide. The container comprises disinfectant, anti-bacterial or antiseptic liquid. An independent claim is also included for the container.

Description

The The present invention relates to inflated water-soluble containers and a procedure for their production.

It is known chemical compounds that are dangerous or charming nature, in water-soluble or water-dispersible materials such as films. The packaging can be simply put in water to the contents to dissolve the packaging in the water or to disperse.

To the For example, WO 89/12587 discloses a package comprising a wrapper a water-soluble or water-dispersible material comprising a flexible material Wall and a water-soluble or water-dispersible heat seal includes. The packaging may contain an organic liquid which is used for Example, a pesticide, fungicide, insecticide or herbicide.

It is also known detergent in water-soluble or water-dispersible containers to wrap. For example, WO 94/14941 discloses a water-soluble or water-dispersible capsule containing an aqueous dishwashing detergent contains. The capsule is made of gelatin.

CA-A-1,112,534 discloses a package made of a water-soluble material in film form There is a cleaning agent in paste form for automatic dishwashers is suitable, encloses. The water-soluble Material may, for example, polyvinyl alcohol, polyethylene oxide or Be methylcellulose. Example 1 illustrates an embodiment in which a polyvinyl alcohol (PVOH) film is heat-sealed their edges to a 5 cm tall square package is formed, and the package is filled with a composition, which contains 8.5% by weight of water.

It is also known, water-soluble container by thermoforming a water-soluble To form materials. For example, WO 92/17382 discloses a package, which contains an agrochemical, such as a pesticide, comprising a first layer a non-level, water-soluble or water-dispersible material and a second layer of a water-soluble or water-dispersible material placed on top of the first layer and by a continuous closed water-soluble or water-dispersible seal along a continuous Area of the superimposed Layers are sealed with this. It is said to be advantageous Make sure the air from the manufactured packaging is sucked off or the content is under reduced pressure to a higher one shock resistance to accomplish.

Around to improve the strength of packaging containing liquids it is also known a residual inflatability in the packaging provided. Thus, for example, EP-A-524 721 describes a water soluble package, the one liquid contains wherein the package is inflatable to a volume that is larger as the initial one Volume of the packaging. Thus, the packaging is less than their entire capacity filled, and the unused capacity can partly, but not completely, filled with a gas, such as air become. The unused capacity, which contains no gas, provides the residual inflatability ready.

In Areas such as household detergents is one appealing appearance for an object highly desirable. In the prior art, as described above, have the packaging, however, no appealing appearance. For example The packages disclosed in WO 92/17382 tend not to uniform Apparent as they packed under reduced pressure become. If a pouch of a single layer of a water-soluble Foil by folding the foil and heat sealing the edges to order to shape the bag, which is then filled, as formed in CA-A-1,112,534, the product obtained can be quite a flat, sagging cladding be that contains the product. Again, it may be missing due to its flexible nature uniformity between different bags.

We have found that this product by an average of Consumer is not considered appealing.

The The present invention seeks to provide a water-soluble container which contains a composition, wherein the container a has a more appealing appearance. In particular, the container should be relative be self-supporting and look full. Ideally, the container should have a have appealing, rounded, three-dimensional appearance.

The EP-A-654 418 describes self-standing flexible bags intended for Example liquid Detergent for refilling from other containers can contain. The bags are cut open and the contents are refilled container poured. Thus they are not water soluble. To avoid folding the bag, causing cracking and leakage to lead can, the bags are by pumping in air before sealing inflated.

We have now surprisingly a water-soluble container discovered that contains a composition and an appealing, three-dimensional Appearance has by making sure that the container is inflated will after being sealed.

• a) Bilden eines offenen Behälters aus einer wasserlöslichen Folie;
• b) zumindest teilweises Füllen des Behälters mit einer Zusammensetzung, die eine Komponente umfasst, die ein Gas freisetzt;
• c) Versiegeln des Behälters; und
• d) Aufblasen lassen des Behälters.

The present invention thus provides a process for the preparation of an inflated water-soluble container, comprising:

• a) forming an open container of a water-soluble film;
• b) at least partially filling the container with a composition comprising a component which releases a gas;
• c) sealing the container; and
• d) inflate the container.

The The present invention also provides an inflated, water-soluble container available, comprising a water-soluble Foil containing a liquid or enclosing a solid composition and a gas, wherein the gas compared with at least one gaseous component enriched in air or at least one gaseous component which is normally absent in air.

Of the The first step (a) of the method of the invention comprises forming an open container from a water-soluble Foil. A suitable water-soluble Foil is a polyvinyl alcohol (PVOH) film.

The PVOH film can be partially or fully alcoholized or hydrolyzed For example, it may be one of 40 to 100%, preferably 70 up to 92%, stronger preferably about 88% or about 92% alcoholized or hydrolyzed Polyvinyl acetate be. It is known that the degree of hydrolysis affects the temperature at which the PVOH starts to turn into water to solve. An 88% hydrolysis corresponds to a film which is cold (i.e. Room temperature) water soluble is while a 92% hydrolysis of a film equivalent to that in warm water soluble is. An example for a preferred PVOH is ethoxylated PVOH. The foil can be poured be blown or extruded. It also can not be oriented, monoaxial oriented or biaxially oriented.

The Film may also be a cellulose derivative, such as hydroxypropyl methylcellulose (HPMC). A suitable HPMC is for example M900, the from Enak Ltd. available is.

Of the Can slide suitable additives, such as plasticizers, lubricants and dyes, be added. Components that have the properties of the polymer can modify also be added. Plasticizers are generally used in one Amount of up to 35 wt .-%, for example 5 to 35 wt .-%, preferably 7 to 20 wt .-%, stronger preferably 10 to 15 wt .-%, used. Lubricants are generally used in an amount of 0.5 to 5 wt .-%. Therefore, the polymer becomes generally in an amount of 60 to 94.5 wt .-%, based on the total amount of composition used to form the film, used. Suitable plasticizers are, for example, pentaerythritol, such as dipentaerythritol, sorbitol, mannitol, glycerol and glycols, such as Glycerol, ethylene glycol and polyethylene glycol. Solids, such as talc, stearic acid, Magnesium stearate, silica, zinc stearate or colloidal silica may also be used become.

It is possible, too, one or more particulate Include solids in the slides to increase the dissolution rate of the container to accelerate. This solid may also be present in the contents of the container. The resolution of the solid in water is sufficient to accelerate the Breaking the container to effect, in particular, when a gas is generated, when the effected physical movement, for example, for immediate release content from the container to lead can. examples for Such solids are alkali metal or alkaline earth metal, such as for example, sodium, potassium, magnesium or calcium bicarbonate or carbonate, in conjunction with an acid. Suitable acids are For example, acidic substances with carboxylic acid or sulfonic acid groups or salts thereof. Examples are cinnamon, wine, almond, fumar, Malein, Apples, Palmitic, citric and naphthalenedisulfonic acids.

The film is generally soluble in cold water (20 ° C) but may be in cold water at 20 ° C insoluble and first become soluble in warm water or hot water at a temperature of for example 30 ° C, 40 ° C, 50 ° C or even 60 ° C. This parameter is determined in the case of PVOH by its degree of hydrolysis.

It is especially important, fine holes to avoid in the film, by which a leakage of the contained Composition may occur. It may therefore be appropriate to one Laminate of two or more layers of different films or to use the same slide as it is unlikely to be fine holes in two layers of material.

Of the open containers can be formed by any means. For example, he can through Thermoforming a PVOH film to create a non-planar layer, which contains a bag, such as a recess, that the composition can be formed. The bag is generally through bonded to a flange, which is preferably substantially planar. The bag may have internal barrier layers, such as in WO 93/08095. Thus, the container for Example be formed by a method similar to that which is disclosed in WO 92/17382.

In another embodiment can the container by making an open-topped pouch, by forming a film around a shoulder and then simultaneously the bottom and sides of the bag are heat-sealed. There may be others Sealing methods are used, for example infrared, High frequency, ultrasound, laser, solvent, vibration, electromagnetic, Hot gas, Heating plate, integration (insert bonding "), friction sealing or spin welding. An adhesive such as water or an aqueous solution of PVOH may also be used become. The adhesive may be by spraying, transfer coating or Roll coating can be applied to the film, or the film can through a mist of adhesive. The seal is desirable also water-soluble. Such a method is described, for example, in EP-A-728,673.

One Another method of forming the open container is to use two sheets on three sides of the bag to seal each other by the slides superimposed and sealed as described in WO 95/23099 become.

If a single water-soluble Slide is used or if two slides are used are not thermoformed, the films generally have one Thickness from 20 to 500 μm, in particular 30 to 160 μm, preferably 40 to 120 μm, stronger preferably 50 to 100 microns.

If a first and a second water-soluble film are used, around the containers In accordance with the present invention, the first film generally becomes a thickness before thermoforming of 20 to 500 microns, especially 70 to 400 microns, for example 70 to 300 μm, most preferably 70 to 160 μm, in particular 75 to 100 microns or 90 to 110 to 150 μm exhibit. The thickness of the second film may be less than that the first film, since the second film is generally not thermoformed will, so a local thin out the slide does not occur. The thickness of the second film will generally be from 20 to 150 μm or 160 μm, preferably 40 or 50 to 90 or 100 μm, more preferably 50 to 80 μm. The slides can if desired so chosen be that they have the same thickness before the first slide thermoformed, or have the same thickness after the The first film was thermoformed to provide a composition set by a substantially constant thickness of a film is enclosed.

In Step (b) becomes the container at least partially filled with a composition. Of the Container can Completely or only partially filled be, for example, immediately after the formation of the container one Airspace of 2 to 20%, in particular of 5 to 10%, of the volume of the container to leave.

The Type of composition is not limited. It can for example a solid or a liquid be. If it is in the form of a solid, it can, for example in the form of powder, granules, an extruded tablet, a compressed tablet or a solidified gel. If in the form of a liquid may be present with a thickener or a gelling agent thickened or gelled. It can be a or more than one phase. For example, the container with a liquid Composition and a separate solid composition are filled, for Example in the form of a ball, pill or in the form of speckles. In another embodiment can two or more solid phases or two or more immiscible liquid phases to be available.

Thus, the composition does not have to be uniform. For example, the container at the Preparation first with a composition that can solidify, for example, a gel, and then filled with a different composition. Each of the compositions is independently aqueous. The first composition may dissolve slowly, for example in a washing process, to release it over a long period of time. This could be useful, for example, to provide immediate, delayed, or sustained release of a component, such as a softener.

If the water-soluble container in cold water at room temperature (20 ° C) or at a slightly higher temperature soluble is, it is important to ensure that the composition itself does not dissolve the container. In general do not attack solid compositions or liquid organic compounds, containing less than about 5% of water, such as in WO 92/17382 described the container at. If the composition is in the form of a liquid, the more contains about 5% by weight of water, something must be done to ensure that the composition the walls of the container does not attack. It can Steps to be taken to the inner surface of the To treat film, for example, by coating it with a Agents such as PVdC (polyvinylidene dichloride) or PTFE (polytetrafluoroethylene). A semi-permeable or partial water barrier, such as polyethylene or polypropylene, or a hydrogel, such as a polyacrylate, may also be provided as a coating. The coating becomes easy fall apart or dissolve or dispersing into microscopic particles when the container is in Dissolved water becomes. It can also steps are taken to adapt the composition, to make sure it does not dissolve the film. It is found for example been that by ensuring that the composition has a high ionic strength or contains an agent which the loss of water through the walls of the container minimizes, prevents the composition from a PVOH film dissolves from within. This is described in more detail in EP-A-518 689 and WO 97/27743.

A Component which releases a gas is added to the composition. This component can be added separately or with the other components become. Thus, for example, the component or one of the components a gas release system of several components first added and the rest of the composition are then added. One more way is that the components or one of the components of a Gas release system with multiple components after the rest of the Composition is / are added. It is also possible, all Add components in a single composition.

The Component that releases a gas may be, for example, a component or a mixture of two or more components, which in Presence of the contents of the container react to release a gas. If, for example, water in The composition may contain two components, the do not react in solid form, but react in the presence of water, be added, like an acid and a carbonate or bicarbonate. An example of a suitable acid is Citric acid. Examples of suitable Carbonates and bicarbonates are sodium and potassium carbonate and sodium and potassium bicarbonate.

A another possibility is that a component is added, which with a Component can already react in the existing in the container Composition is present. For example, an acid in the Composition present, which is held in the container, and a Carbonate or bicarbonate, as described above, then added become. In another embodiment A carbonate or bicarbonate may be present in the composition his and an acid subsequently be added.

In the above cases For example, the component that releases a gas may be in solid form or in a solvent, such as water or an organic solvent. The release rate of the gas can be controlled. For example A finely divided powder releases the gas faster than one compressed tablet. If desired, For example, the component may be encapsulated by a substance that the Delayed release of the gas.

A another possibility consists in adding to the composition a component which at room temperature (20 ° C) is a gas, but at the moment it's admitted in the form of a solid or a liquid, since it is on under their melting or Boiling point cooled has been. For example, solid carbon dioxide (dry ice) may be added become. When the component warms to room temperature, what on natural Way or with support from warming can happen, it will boil or sublimate to a gas. A another possibility is to add a compound that is thermally unstable is; for example, sodium bicarbonate will release carbon dioxide, when it reaches about 60 ° C heated becomes.

The Component that releases a gas may be, for example, a component be a gas gradually releases, such as a bleaching agent, especially an oxygen bleaching agent or a chlorine bleach. Such bleaches put a gas gradually free, such as oxygen or a chlorine-containing compound, if she was in contact with water come. The water may itself be included in the composition be contained in another compartment and through the partition diffuse into the compartment containing the bleach, or from outside of the container diffuse into the composition.

each Component or combination of components that generates a gas, can be used. The gas should not be toxic or in small quantities are produced. However, it is most convenient to use carbon dioxide gas produce, since this brings no environmental concerns.

After this the component that releases a gas has been added, for example with or to the composition, the container is sealed in step (c). When the component that releases a gas starts immediately To release gas, which it will do in general, should be container be sealed immediately to make sure that at least one Part of the generated gas in the tank is held. The sealing may be by any means as described above carried out become.

If thus, for example, the container in the form of a bag consisting of one or two layers of a Foil is formed, the container can by heat sealing or by any of the other sealing methods discussed above to be sealed. The slides can for example, by heat sealing along of the flange are sealed together. A suitable heat-sealing temperature is for example 120 to 195 ° C, for example 140 to 150 ° C. A suitable sealing pressure is, for example, 250 to 800 kPa. examples for sealing pressures are 276 to 552 kPa (40 to 80 psi), especially 345 to 483 kPa (50 to 70 psi) or 400 to 800 kPa (4 to 8 bar), in particular 500 to 700 kPa (5 to 7 bar); depending on the heat sealer used. suitable Seal dwell times are at least 0.4 seconds, for example 0.4 to 2.5 seconds. It can Other methods of sealing the films used, for Example infrared, high frequency, ultrasound, laser, solvent, Vibration, electromagnetic, hot gas, heating plate, binding, Friction sealing or spin welding. An adhesive like for example Water or an aqueous solution from PVOH, can also be used. The adhesive can be applied by spraying, transfer coating, Roll coating or other coating applied to the films be, or the slides can through a mist of adhesive. The seal is desirable also water-soluble. The second film may comprise, for example, PVOH.

If more than a container At the same time, the packaged compositions can then be separated from each other. In another embodiment can they will be left together and, for example, perforations between the individual containers be provided so that they at a later stage, for example from a consumer, can be easily separated. When the containers are separated can, can the flanges are left in place. Desirably, the flanges however, partially removed to an even more appealing three-dimensional To create appearance. In general, the remaining should Flange of aesthetic establish as small as possible Be careful not to forget that a certain flange necessary to ensure that that the two films stick to each other. A flange of 1 mm to 10 mm is desirable preferably 2 mm to 7 mm, stronger preferably 4 mm to 6 mm, most preferably about 5 mm.

The container then inflate in step (d). The containers blow, for example in a resting position or they can be in boxes for retail be packaged and inflate in the boxes. The containers themselves can, if desired, packed in outer containers be, for example, in non-water-soluble containers that are removed, before the water-soluble container be used.

The container The present invention generally contains from 5 to 100 g a composition, such as an aqueous composition, in particular 15 to 40 g, depending on their intended use. For example can be a dishwashing detergent 15 to 20 g, a water softener 25 to 35 g and a detergent 10 to 40 g, in particular 20 to Weigh 30 g or 30 to 40 g.

The containers can have any shape. For example, they may take the form of a wrapper, sachet, ball, cylinder, cube, or cuboid, ie, a rectangular parallelepiped whose sides are not all the same. Generally, the sides are not flat but rather convex, since the containers are not rigid and inflated.When the container is formed from a thermoformed film and a flat film, the seam between the two films appears closer to one surface of the container than to the other Container due to the production of gas For example, deformation may also occur in the manufacturing step, if desired. For example, when the bag is filled with a gelled composition having a height greater than that of the bag, the second film is deformed when placed on top of the bag.

in the General amounts the maximum dimension of the filled Part of the container (exclusively the flanges) 5 cm. For example, a rounded cuboid container may be a length of 1 to 5 cm, in particular 3.5 to 4.5 cm, a width of 1.5 to 3.5 cm, in particular 2 to 3 cm, and a height of 1 to 2.5 cm, in particular 1 to 2 cm, for example, have 1.25 to 1.75 cm.

The Composition containing the containers crowded, is not particularly limited. It can be any composition that can be added to an aqueous system or in an aqueous Environment is to use. Suitable compositions are fabric care, surface care and dishwashing detergent. For example, the composition may include a dishwashing, water softening, Include detergents or cleaning agents or a rinse aid. In this Case, it is especially suitable for use in a household washing machine suitable, such as in a washing machine or dishwasher. The container can also be a disinfectant, an antibacterial composition or containing an antiseptic composition before use to dilute with water or it may contain a concentrated replenisher composition, for example for a spray bottle ("trigger-type spray "), which in Household situations is used. Such a composition just may already be contained in the spray container Add water. Examples of surface care agents are those used for cleaning, treating or polishing a surface become. Suitable surfaces are for example household surfaces, such as work surfaces, as well surfaces from sanitary Equipment, such as sinks, Sink and toilets.

Examples of anionic surfactants are straight-chain or branched alkyl sulfates and alkyl polyalkoxylated sulfates, also known as alkyl ether sulfates. Such surfactants can be prepared by the sulfation of higher C ₈ -C ₂₀ fatty alcohols.

Examples of primary alkyl sulfate surfactants are those of the formula: ROSO ₃ ^- M ⁺ where R is a linear C ₈ -C ₂₀ hydrocarbon radical and M is a water-solubilizing cation. Preferably, R is C ₁₀ -C ₁₆ alkyl, for example C ₁₂ -C ₁₄ , and M is an alkali metal, such as lithium, sodium or potassium.

Examples of secondary alkyl sulphate surfactants are those in which the sulphate moiety is on a "backbone" of the molecule, for example those of the formula: CH ₂ (CH ₂ ) _n (CHOSO ₃ ^- M ⁺ (CH ₂ ) _m CH ₃ wherein m and n are independently 2 or more, the sum of m + n is typically 6 to 20, for example 9 to 15, and M is a water-solubilizing cation, such as lithium, sodium or potassium.

Particularly preferred secondary alkyl sulfates are the type (2,3) alkyl sulfate surfactants of the formulas: CH ₂ (CH ₂ ) _x (CHOSO ₃ ^- M ⁺ ) CH ₃ and CH ₃ (CH ₂ ) _x (CHOSO ₃ ^- M ⁺ ) CH ₂ CH ₃ for the 2-sulfate or 3-sulfate. In these formulas, x is at least 4, for example 6 to 20, preferably 10 to 16. M is a cation, such as an alkali metal, lithium, sodium or potassium.

Examples of alkoxylated alkyl sulfates are ethoxylated alkyl sulfates of the formula: RO (C ₂ H ₄ O) _n SO ₃ ^- M ⁺ where R is a C ₈ -C ₂₀ -alkyl radical, preferably C ₁₀ -C ₁₈ , such as a C ₁₂ -C ₁₆ , n is at least 1, for example 1 to 20, preferably 1 to 15, in particular 1 to 6, and M is a salt-forming cation, such as lithium, sodium, potassium, ammonium, alkylammonium or alkanolammonium. These compounds can provide particularly desirable fabric cleaning performance benefits when used in combination with alkyl sulfates.

The Alkyl sulfates and alkyl ether sulfates are generally in the form of mixtures used, the varying alkyl chain lengths and, if present, have different degrees of alkoxylation.

Other anionic surfactants that can be used are salts of fatty acids, for example C ₈ -C ₁₈ fatty acids, especially the sodium, potassium or alkanolammonium salts, and alkyl, for example C ₈ -C ₁₈ , benzenesulfonates.

Examples of nonionic surfactants are fatty acid alkoxylates, such as fatty acid ethoxylates, especially those of the formula: R (C ₂ H ₄ O) _n OH where R is a straight or branched C ₈ -C ₁₆ -alkyl radical, preferably a C ₉ -C ₁₅ -, for example C ₁₀ -C ₁₄ or C ₁₂ -C ₁₄ -alkyl radical, and n is at least 1, for example 1 to 16, preferably 2 to 12, more preferably 3 to 10.

The surfactants Agent of the type alkoxylated nonionic fatty alcohol is often a Hydrophilic-lipophilic balance (HLB), that of 3 to 17, stronger preferably from 6 to 15, most preferably from 10 to 15.

Examples of fatty alcohol ethoxylates are those made from alcohols having 12 to 15 carbon atoms and containing about 7 moles of ethylene oxide. Such materials are commercially marketed under the trademarks Neodol 25-7 and Neodol 23-6.5 by the Shell Chemical Company. Other useful neodols include Neodol 1-5, an ethoxylated fatty alcohol having an average of 11 carbon atoms in its alkyl chain with about 5 moles of ethylene oxide; Neodol 23-9, an ethoxylated primary C ₁₂ -C ₁₃ alcohol containing about 9 moles of ethylene oxide; and Neodol 91-10, an ethoxylated primary C ₉ -C ₁₁ alcohol containing about 10 moles of ethylene oxide;

Alcohol ethoxylates of this type were also marketed by Shell Chemical Company under the trademark Dobanol. Dobanol 91-5 is an ethoxylated C ₉ -C ₁₁ fatty alcohol having an average of 5 moles of ethylene oxide and Dobanol 25-7 is an ethoxylated C ₁₂ -C ₁₅ fatty alcohol having an average of 7 moles of ethylene oxide per mole of fatty alcohol.

Other examples of suitable ethoxylated nonionic alcohol type surfactants include Tergitol 15-S-7 and Tergitol 15-S-9, both of which are linear secondary alcohol ethoxylates available from Union Carbide Corporation. Tergitol 15-S-7 is a mixed ethoxylated product of a linear secondary C ₁₁ -C ₁₅ alkanol with 7 moles of ethylene oxide and Tergitol 15-S-9 is the same but with 9 moles of ethylene oxide.

Other suitable nonionic surfactant Agents of the ethoxylated alcohol type are 45-11, a similar one Ethylene oxide condensation product of a fatty alcohol having 14-15 carbon atoms wherein the number of ethylene oxide groups per mole is about 11. such Products are also available from the Shell Chemical Company.

Other nonionic surfactants are, for example, C ₁₀ -C ₁₈ -alkylpolyglycosides, such as C ₁₂ -C ₁₆ -alkyl polyglycosides, in particular the polyglucosides. These are particularly useful when high foaming compositions are desired. Other surfactants are polyhydroxy fatty acid amides, such as C ₁₀ -C ₁₈ N- (3-methoxypropyl) glycamides and Pluronic ethylene oxide-propylene oxide block polymers.

Examples for cationic surfactants Agents are those of the quaternary ammonium type.

Examples of amphoteric surfactants are C ₁₀ -C ₁₈ amine oxides and the C ₁₂ -C ₁₈ betaines and sulfobetaines.

Of the Total content of surface-active Compositions in the composition is desirably 0.1 to 95 wt .-%, in particular 60 or 75 to 90 wt .-%. The total salary on surfactants in a washing or cleaning agent is desirably 60 to 95 Wt .-%, in particular 70 to 90 wt .-%. Desirably lies, in particular in a detergent, an anionic surfactant in one Amount of 50 to 75 wt .-%, a nonionic surface-active Agent in an amount of 5 to 20% by weight, a cationic surfactant Means in an amount of 0 to 10 wt .-% and / or an amphoteric surfactant Agent in an amount of 0 to 10 wt .-% before. Desirably lies in a dishwashing detergent the anionic surfactant Means in an amount of 0.1 to 50% by weight, a nonionic surfactant Agent in an amount of 0.5 to 20 wt .-% and / or a cationic surfactant Agent in an amount of 1 to 15 wt .-% before. These quantities are based on the total solids content of the composition, i. exclusively any water or solvent, that may be present.

The Compositions can, especially if they are used as washing or dishwashing agents, too Enzymes, such as protease, lipase, amylase, cellulase and peroxidase enzymes. Such enzymes are commercially available and are, for example under the registered trademarks Esperase, Alcalase, Savinase, Termanyl, Lipolase and Celluzyme from Novo Industries A / S and Maxatasc from International Biosynthetics, Inc. Distributed. Desirably, the lie Enzymes in the composition in an amount of 0.5 to 3% by weight, in particular 1 to 2 wt .-% before.

The Compositions can, if desired, a thickener or gelling agent. suitable Thickeners are polyacrylate polymers, such as those that under the trademark CARBOPOL or the brand ACUSOL by Rohm and Haas Company are distributed. Other suitable thickeners are xanthan gum. The thickener, if present, generally in an amount of 0.2 to 4 wt .-%, in particular 0.5 to 2 wt .-%, before.

Dishwashing liquid usually include a laundry builder (English "detergency builder ") builders are alkali metal or ammonium phosphates, polyphosphates, phosphonates, Polyphosphonates, carbonates, bicarbonates, borates, polyhydroxysulfonates, Polyacetates, carboxylates and polycarboxylates, such as citrates. The builder is desirable in an amount of up to 90% by weight, preferably 15 to 90% by weight, stronger preferably from 15 to 75% by weight, based on the total content of the composition in front. More details about suitable components are, for example, in EP-A-694 059, EP-A-518 720 and WO 99/06522.

The Compositions can also optionally comprise one or more additional ingredients. These include conventional ones Detergent components, such as other surfactants, bleaches, Bleach funding, Builders, Suds boosters or suds suppressors, anti-dulling agents and Corrosion inhibitors, organic solvents, co-solvents, Phase stabilizers, emulsifiers, preservatives, soil suspending agents, Soil release agents, germicides, phosphates, such as sodium tripolyphosphate or potassium tripolyphosphate, the pH adjusting agent or Buffers, alkalinity sources, the no builders are chelating agents, clays, such as smectic clays, enzyme stabilizers, Anti-limescale, colorants, colors, hydrotropes, agents to inhibit color transfer, Brighteners and perfumes. If used, provide such possible Ingredients generally not more than 10% by weight, for example 1 to 6 wt .-%, of the total weight of the compositions.

The builders counteract the effects of calcium or other ion-based water hardness that occurs with the use of the laundry or bleach compositions herein. Examples of such materials are citrate, succinate, malonate, carboxymethyl succinate, carboxylate, polycarboxylate and polyacetyl carboxylate salts, for example with alkali metal or alkaline earth metal cations, or the corresponding free acids. Specific examples are sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, C ₁₀ -C ₂₂ fatty acids and citric acid. Further examples are phosphonate-type organic complexing agents such as those sold by Monsanto under the trademark Dequest and alkyl hydroxyphosphonates. Citrate salts and C ₁₂ -C ₁₈ fatty acid soaps are preferred.

Other suitable builders are polymers and copolymers known to have builder properties to have. For example, such materials include suitable polyacrylic acid, polymaleic acid and Polyacrylic / polymaleic and copolymers and their salts, such as those derived from BASF under the brand Sokalan.

The builders generally from 0 to 3% by weight, more preferably from 0.1 to 1% by weight, based on the weight of the composition.

compositions which include an enzyme can optionally contain materials that enhance the stability of the enzyme receive. Such enzyme stabilizers include, for example, polyols, such as propylene glycol, boric acid and Borax. Combinations of these enzyme stabilizers can also be used. When used, put the enzyme stabilizers generally 0.1 to 1% by weight of the compositions. Examples for bleach are listed for example in WO 99/06522. These include oxygen releasing bleaches, such as a hydrogen peroxide source, and an organic peroxyacid bleach precursor compound or a preformed organic peroxyacid. examples for Hydrogen peroxide sources are inorganic perhydrate bleaches, such as the alkali metal salts of perborate, percarbonate, perphosphate, Persulfate and persilicates. Examples of organic peroxyacid bleach precursors are listed in WO 99/06522. The bleaching agents also include chlorine releasing agents such as hydantoins, for example, 1,3-dichloro-5,5-dimethylhydantoin, Hypochlorites, such as sodium hypochlorite or dichloroisocyanurate, such as Sodium dichloroisocyanurate.

The compositions may optionally comprise materials which serve as phase stabilizers and / or co-solvents. Examples are C ₁ -C ₃ alcohols or diols, such as methanol, ethanol, propanol and 1,2-propanediol. C ₁ -C ₃ alkanolamines such as mono-, di- and triethanolamines and monoisopropanolamine can also be used, as such or in combination with the alcohols. The phase stabilizers and / or cosolvents may, for example, represent 0 to 1% by weight, preferably 0.1 to 0.5% by weight, of the composition.

If the composition in liquid Form, it may be anhydrous or, for example, up to 5 wt .-% water. aqueous Compositions generally contain more than 8% by weight of water, based on the weight of the aqueous Composition. Desirably contain the watery Compositions more than 10% by weight, 15% by weight, 20% by weight, 25% by weight or 30% by weight of water, but desirably less than 80% by weight of water, more desirably less than 70% Wt .-%, 60 wt .-%, 50 wt .-% or 40 wt .-% water. You can to Example 30 to 55 or 65 wt .-% water.

The Compositions can optionally include components which control the pH of the compositions set or keep to optimal values. Examples of the pH adjusting agents are NaOH and citric acid. The pH can be, for example from 1 to 13, as 8 to 11, depending on the type of composition. For example, has a dishwashing detergent desirably a pH of 8 to 11, a detergent desirably a pH of 7 to 9 and a water-softening agent desirably a pH of 7 to 9.

The The present invention will now be further illustrated in the following examples explained.

example 1

A dishwashing detergent was prepared by mixing the following components in the weight ratios indicated: Kaliumtripolyphosphatpulver 12% sodium tripolyphosphate 30% isothiazolinone 0.1% Polyacrylate Thickener (Carbopol) 1% Nonionic surfactant 0.5% sodium citrate 10% citric acid 0.2% sodium bicarbonate 0.2% Softened water 46%

A Multivac thermoforming machine operating at 6 cycles / min and ambient conditions of 25 ° C and 35% relative humidity (± 5% relative humidity) was used to thermoform a PVOH film. This was Monosol M8534, obtained from Chris Craft Inc, Gary, Indiana, USA, with a degree of hydrolysis of 88% and a thickness of 100 μm. The PVOH film was molded at 115-118 ° C into a rectangular shape having a length of 39 mm, a width of 29 mm and a depth of 16 mm, the lower edges of rounded to a radius of 10 mm. The thus formed pocket was filled with 10 ml of the dishwashing detergent and a 75 μm thick Monosol M8534 PVOH film was placed on top and heat sealed at 144-148 ° C. The containers thus produced were separated by cutting the flanges. Each container has a rounded appearance due to the generation of carbon dioxide gas.

Example 2

The following formulations were prepared by mixing the indicated components in the weight ratios indicated. In all cases, the compositions were filled into containers according to the procedure described in Example 1, and containers having a pleasing, rounded appearance were obtained after the carbon dioxide gas had been generated. A detergent for laundry: sodium 20% nonylphenol ethoxylate 10% Accusol 820, available from Rohm and Hass Company 3.3% sodium citrate 5% citric acid 0.2% sodium bicarbonate 0.2% Softened water 61.3% A detergent for an automatic dishwasher: sodium citrate 8th% Van Gel ES thickener, available from RT Vanderbilt Company 4% tetrapotassiumpyrophosphate 10% sodium tripolyphosphate 30% Anhydrous sodium metasilicate 2% sodium xylene sulfonate 2.25% Deceth 4-phosphate 0.75% citric acid 0.2% sodium bicarbonate 0.2% Softened water 42.6% A high-performance cleaning fluid in the form of a slurry: Neodol 25-7 linear C _12-15 alcohol 18% Biosoft D-62 Sodium alkylbenzenesulfonate 5.5% sodium 2% Anhydrous sodium metasilicate 5% tetrasodium pyrophosphate 20% sodium citrate 7.5% Carbopol ETDZ691 polymer, available from Goodrich 0.5% citric acid 0.2% sodium bicarbonate 0.2% Softened water 41.1% A detergent in the form of a slurry: sodium 40% sodium citrate 4.8% Accusol 820, available from Rohm and Hass 2% Accusol 810, available from Rohm and Hass 5% sodium tripolyphosphate 10% Accusol 445, available from Rohm and Hass 2% nonylphenol ethoxylate 10% citric acid 0.25% sodium bicarbonate 0.25% Softened water 26.7% A dishwashing detergent: Accusol 810 11% Accusol 445N 4% sodium tripolyphosphate 20% tetrapotassiumpyrophosphate 10% potassium silicate 29% Triton CF-32 alkylamine ethoxylate 3% potassium citrate 5% citric acid 0.25% sodium bicarbonate 0.25% Softened water 17.4%

Claims (42)

Inflated, water-soluble container comprising a water-soluble film, the one liquid or solid composition and a gas enclosing the gas with at least a gaseous Component is enriched compared to air or at least a gaseous Component which is normally absent in air. container according to claim 1, wherein the gaseous Component is carbon dioxide. container according to claim 1, wherein the gaseous Component is oxygen or a chlorine-containing component. container according to one of the claims 1 to 3, wherein the water-soluble Foil is a polyvinyl alcohol film. container according to one of the claims 1 to 4, wherein the water-soluble Foil was thermoformed into a bag, and the bag sealed was made by adding a second water-soluble Slide over the bag was placed and the films sealed together were. container according to one of the claims 1 to 5, wherein the water-soluble Foil was thermoformed. container according to one of the claims 1 to 6, wherein the composition comprises a fabric care, surface care or dishwashing detergent is. container according to one of the claims 1 to 7, wherein the composition comprises a dishwashing, water softening, Washing or cleaning agent or a rinse aid is. container according to claim 8, for use in a machine for washing is suitable in the household. container according to one of the claims 1 to 9, wherein the composition is a disinfectant, an antibacterial Composition or an antiseptic composition. A container according to any one of claims 1 to 6, wherein the composition comprises a refill composition tion for a spray bottle. container according to one of the preceding claims, wherein the gas from the solid or liquid Composition is released. container according to claim 12, wherein the composition is a solid. container according to claim 13, wherein the solid composition is a finely divided Powder or a compressed tablet. container according to one of the claims 12 to 14, wherein the solid composition is a bleaching agent. container according to claim 15, wherein the bleaching agent is an oxygen or chlorine bleach is. container according to one of the claims 12 to 16, wherein the solid composition is defined by a substance which delays the release of the gas, is enclosed. Process for the preparation of an inflated, water-soluble container full: a) forming an open container of a water-soluble Foil; b) at least partially filling the container with a composition comprising a component which is a gas releases; c) sealing the container; and d) inflation leave the container. The method of claim 18, wherein the container is at least partially filled with a composition, and a component which releases a gas, then is added. The method of claim 18, wherein the container is in a single step with a composition that is a component which releases a gas is filled. A method according to any one of claims 18 to 20, wherein step (a) comprises thermoforming the film to make a bag. The method of claim 21, wherein step (c) is the Arranging a second water-soluble Foil on the filled Bag and sealing the films together. A method according to any one of claims 18 to 22, wherein the water-soluble film a polyvinyl alcohol film. A method according to any one of claims 18 to 23, wherein the composition in step (b) an aqueous or non-aqueous liquid is. The method of claim 24, wherein the aqueous liquid contains more than 8% by weight of water, based on the total weight of the aqueous liquid and a component, which releases a gas. The method of claim 25, wherein the component, which releases a gas comprising a mixture of compounds which react in the presence of water, whereby the gas is generated. The method of claim 25, wherein the component, which releases a gas that contains a compound that has a compound in the aqueous liquid reacts, wherein the gas is generated. The method of claim 27, wherein the component, which releases a gas is a bleaching agent. The method of claim 18, wherein the component, which releases a gas, which is a component at room temperature (20 ° C) Gas is added but in step (b) in the form of a cooled solid or liquid becomes. Method according to one of claims 18 to 29, wherein the gas, that the container inflates, Carbon dioxide is. Method according to one of claims 18 to 30, wherein the container at least partially with a textile care, surface care or dishwashing detergent filled is. Method according to one of claims 18 to 31, wherein the container at least partly with a dishwasher, water softening, Washing or cleaning agent or a rinse aid composition is filled. The method of claim 32, wherein the container for Use in a machine suitable for washing in the home. Method according to one of claims 18 to 30, wherein the container at least partly with a disinfectant, an antibacterial Composition or an antiseptic composition is filled. Method according to one of claims 18 to 30, wherein the container at least partially with a refill composition for one spray bottle filled is. Method according to one of claims 18 to 35, wherein the component, which releases a gas, is a solid. The method of claim 36, wherein the solid composition is a finely divided powder or a compressed tablet. A method according to claim 36 or 37, wherein the component, which releases a gas from a substance which releases it the gas is delayed, is enclosed. The method of claim 28, wherein the bleaching agent is an oxygen bleach. A method according to any one of claims 18 to 39, wherein the liberated Gas is oxygen. The method of claim 28, wherein the bleaching agent is a chlorine bleach. A method according to any one of claims 18 to 39, wherein the liberated Gas is chlorine.