RU2462508C2 - Composition for film-coated detergents and production method - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to a composition for one-time packaging of a film-coated detergent in which the detergent composition is coated by a water-soluble or dispersible coating. The coating contains from at least 50% to 99% of a compound selected from (A1) protein or peptide, preferably gelatine or peptide(s) thereof, (A3) shellac or (B) amino acid(s) or a mixture of at least two of them. The coating also contains a plasticiser selected from monoalkyl ethers of alkylene glycol, glycerine, polystyrenes, propylene glycols, ethoxylated or propoxylated ethylene or propylene, glycerine esters, glycerine triacetate, polyethylene glycols, methyl esters and amides, and nonionic surfactants. The invention also relates to a method of producing said composition.

EFFECT: easy and safe to handle detergent composition.

11 cl, 1 ex

Description

The present invention relates to a composition of a detergent and / or coated additive, for example, for a dishwasher or washing machine; or tablets of water softeners coated with a material that decomposes in water or when exposed to temperature; and the method of their manufacture.

The traditional form of detergent and / or additive compositions used in dishwashers or washing machines are granules or non-dispersed solids, such as bars or tablets, or briquettes. In the following description, the term tablet will refer to any form of non-dispersed solids. For automatic dishwashers or washing machines, said detergent tablets and / or additives or granules are respectively placed or poured into a dispenser located in said machine or in an appropriate dispensing device, which is then placed in said machine.

So far, detergent tablets have been supplied in packaged pieces or in packaging that must be opened before putting the tablet in a dishwasher or washing machine, or in a water-soluble package that is left on the tablet before being placed in the machine. Water-soluble packages containing an agent that will be distributed in an aqueous medium are well known.

In order to simplify the dispensing of detergents per wash cycle in the machine and to avoid wasting the detergent due to spillage during the dispensing process, EP-A 700 989 describes a detergent in a one-time packaging. The specified detergent in a single packaging is a detergent packaged in a film or sheet of water-soluble polymer so that this package is suitable for one wash cycle. This detergent in a single packaging is placed in the detergent dispenser of the machine, without opening the package containing the detergent.

The lack of a deployment step for the detergent from the package has several advantages. Firstly, the specified detergent in a one-time packaging prevents the unnecessary consumption of detergent as a result of the scattering of the detergent composition and / or the additive. Secondly, the specified detergent in a single packaging eliminates the need for the user to determine the required dosage of the specified composition and ensures that the user uses the correct dosage of the specified composition for the wash cycle. Thirdly, the user does not touch the wrapped detergent composition with his fingers.

WO 04/20509 describes a water-soluble inhomogeneous polymer for packaging detergent compositions containing water-soluble fillers. This polymer is used in a method of injection molding using a water-soluble resin containing a water-soluble polymer and a water-soluble filler.

Residues of the film or foil used as soluble wrapping material may contaminate, for example, dishwashers, depending on the film or foil used or the reaction products of the contaminants with the dissolved coating. Regardless of the solubility of the films or foils used for wrapping / packaging the detergent particles, the manufacturing method should include a wrapping / packaging step that affects the speed of the manufacturing process.

Initially, wrapped, uncoated tablets were created for laundry / dishwashing compositions, especially to increase the mechanical strength of the tablets and their stability. WO 00/66701 describes molded detergent tablets coated with several types of water-soluble polymers, in particular copolymers including acidic monomers and / or unsaturated monomers.

US 6576599 discloses dishwashing tablets having a water-insoluble coating to enhance the mechanical stability of the tablets.

WO 04/20569 A1 describes a dispersed detergent whose particles have a base layer of finely divided powder dispersed in a carrier on the surface of the particle, said base layer being coated with a surface modifier.

An object of the present invention was to provide a detergent composition that is safe and easy to handle for a user, and a quick and easy method for making said composition.

This task is performed by a detergent composition in a one-time packaging in which the detergent composition is coated with a water-dispersible or water-dispersible coating comprising at least one compound selected from cellulose, starch or derivatives of starch, pectin, proteins or peptides , in particular gelatin, sugar (sugars) or amino acids (amino acids).

In the following description, any detergent and / or additive compositions will be encompassed by the term “detergent”. This detergent composition may be granules or any non-dispersed solid form, such as bars or tablets, or briquettes. The word "tablet" in the following description covers any kind of non-dispersed solid forms. The specified tablet may take any form. Preferably, the form of said solid detergent tablet guarantees a uniform dissolution of the tablet in the washing solution. In one preferred embodiment of the present invention, the detergent and / or additive composition may include any ingredients known in the art for dishwashing, washing or softening water. Such ingredients may include, for example, surfactants, antifoam agents, whitening systems, chelating agents, detergent additives, enzymes, fillers, and perfumes; however, these ingredients are not limited to this list.

One particularly preferred embodiment of the present invention is a molded dishwashing product formed by a particulate detergent composition, in which the detergent composition includes any of the ingredients typical of such compositions. Such ingredients do not limit the invention, however, examples of suitable ingredients are provided below.

According to the present invention, a pre-dosed amount of detergent is coated with a water soluble or degradable material to present the coated fraction of the detergent as a “one-time detergent”. The wording “detergent in a single packaging” refers to the amount of detergent suitable for one washing cycle. However, according to the present invention, two or more one-time detergent packaging per washing cycle can be used in order to meet different conditions of the washing process, such as the degree of contamination, load, volume of the washing machine, water hardness, water temperature and type of detergent . The specified coating is made of decomposable in water or at a temperature of the material. The detergent in a single packaging of the present invention may contain from 5 to 60 grams of detergent.

This coated detergent in a one-time packaging of the present invention is placed in the machine without further action with it. This is possible due to the fact that the coating is made of a soluble, degradable or dispersible material in water. A coated detergent has several advantages. First, the specified coated detergent in a single packaging prevents unnecessary consumption of the detergent composition and / or additives as a result of spilling. Detergent can be scattered by measuring its amount or by placing detergent in a detergent dispenser in a washing machine or in a dispenser. Secondly, the specified detergent in a single packaging eliminates the need for the user to determine the required dosage of the specified composition and ensures that the user uses the correct dosage of the specified composition for the wash cycle. Therefore, the need for separate devices for measuring and / or dosing is eliminated. Thirdly, the user does not touch the wrapped detergent composition with his fingers, which means that the user does not contaminate his fingers and / or hands. Or in the case of a water-soluble film for wrapping detergent in a one-time packaging, people may confuse and try to open such a wrapper.

One feature of the present invention is that the shell of the coated detergent in a single packaging is made of a material that is water soluble or breaks down in water or disperses in water, and this shell does not harm the user, and during the manufacture of the shell of detergent compositions, this shell can be applied at high speed.

In preferred embodiments of the invention, said sheath material includes:

A) at least one water soluble or degradable polymer selected from:

A1) a protein (more than 100 amino acids and up to "full-sized proteins", for example up to 2500 amino acids) or a peptide having at least 10, preferably at least 50, more preferably at least 80, most preferably at least 100 amino acids in length; alternatively, a protein or peptide having a molecular weight of from 20,000 to 350,000 g / mol, preferably from 100,000 to 300,000 g / mol. The most preferred protein is gelatin or a peptide thereof. Enzymes in their active form are not preferred.

A2) sugar polymers such as cellulose, starch, starch derivatives, pectins, such as glycogen.

A3) shellac, preferably non-fat.

The shell may consist mainly of one of these polymers or consist of at least two of them.

B) Low molecular weight sugars containing from 1 to 10 sugar units or any amino acid, preferably natural amino acids, or a mixture of sugars, a mixture of amino acids or a mixture of sugars and amino acids. The shell may mainly consist of these compounds.

C) A mixture of the compounds shown in A) and B).

D) A mixture of the compounds shown in A), B) or C) with additional homo- and / or block copolymers.

E) A mixture of the compounds given in A), B), C) or D) with any non-ionic, amphoteric, anionic or cationic compounds, such as:

- shellac

- polyethylene glycol (PEG)

- (co) polymers of poly (meth) acrylic acid

- vinyl acetate

- Quaternary polyvinyl alcohol

- or derivatives of these compounds.

F) A mixture of the compounds given in A), B), C), D) or E), with any non-ionic, amphoteric, anionic or cationic compounds, such as:

a) water-soluble non-ionic polymers from the group:

A1) polyvinylpyrrolidones,

A2) copolymers of vinyl pyrrolidone / vinyl esters,

A3) cellulose ethers;

b) water-soluble amphoteric polymers from the group:

b1) copolymers of alkyl acrylamide / acrylic acid,

b2) copolymers of alkyl acrylamide / methacrylic acid,

b3) copolymers of alkyl acrylamide / methyl methacrylic acid,

b4) copolymers of alkyl acrylamide / acrylic acid / alkyl amino amino (meth) acrylic acid,

b5) copolymers of alkyl acrylamide / methacrylic acid / alkyl amino amino (meth) acrylic acid,

b6) copolymers of alkyl acrylamide / methyl methacrylic acid / alkyl amino amino (meth) acrylic acid,

b7) copolymers of alkyl acrylamide / alkyl methacrylate / alkyl aminoethyl methacrylate / alkyl methacrylate,

b8) copolymers:

b8i) unsaturated carboxylic acids,

b8ii) cationic derivatives of unsaturated carboxylic acids,

b8iii) optionally other ionic or nonionic monomers;

c) water soluble zwitterionic polymers from the group:

c1) copolymers of acrylamidoalkyl-trialkylammonium chloride / acrylic acid and their alkali metal and ammonium salts,

c2) copolymers of acrylamidoalkyl-trialkylammonium chloride / methacrylic acid and their alkali metal and ammonium salts,

c3) methacryl-ethylbetaine / methacrylate copolymers;

d) water soluble anionic polymers from the group:

d1) copolymers of vinyl acetate / crotonic acid,

d2) copolymers of vinyl pyrrolidone / vinyl acrylate,

d3) terpolymers of acrylic acid / ethyl acrylate / N-tert-butyl acrylamide,

d4) grafted polymers of vinyl esters, esters of acrylic acid or methacrylic acid individually or in a mixture copolymerized with crotonic acid, acrylic acid or methacrylic acid with polyalkylene oxides and / or polyalkylene glycols,

d5) grafted and crosslinked copolymers by copolymerization:

d5i) at least one nonionic type monomer,

d5ii) at least one ionic type monomer,

d5iii) polyethylene glycol and

d5iv) a crosslinking agent,

d6) copolymers obtained by copolymerization of at least one monomer from each of the following three groups:

d6i) esters of unsaturated alcohols and short chain saturated carboxylic acids and / or esters of short chain saturated alcohols and unsaturated carboxylic acids,

d6ii) unsaturated carboxylic acids,

d6iii) esters of long chain carboxylic acids and unsaturated alcohols and / or esters of carboxylic acids from the group d6ii) with saturated or unsaturated, linear or branched C _8-18 alcohols,

d7) terpolymers of crotonic acid, vinyl acetate and allyl or metal ester,

d8) tetrapolymers and pentapolymers:

d8i) crotonic acid or allyl hydroxyacetic acid,

d8ii) vinyl acetate or vinyl propionate,

d8iii) branched allyl or metal esters,

d8iv) vinyl ethers, vinyl esters or unbranched allyl or metal esters,

d9) copolymers of crotonic acid with one or more of the group consisting of ethylene, vinylbenzene, vinyl methyl ether, acrylamide and their soluble salts,

d10) terpolymers of vinyl acetate, crotonic acid and vinyl esters of saturated aliphatic monocarboxylic acid, branched at the α-position;

e) water soluble cationic polymers from the group:

e1) Quaternary cellulose derivatives,

e2) polysiloxanes containing quaternary groups,

e3) cationic derivatives of guar,

e4) polymer dimethyl-diallylammonium salts and their copolymers with esters and amides of acrylic acid and methacrylic acid,

e5) copolymers of vinyl pyrrolidone with quaternary derivatives of dialkyl aminoacrylate and methacrylate,

e6) vinylpyrrolidone / methoimidazolinium chloride copolymers,

e7) quaternary polyvinyl alcohol,

e8) the polymers that are known under INCI names - polyquartenium 2, polyquartenium 17, polyquartenium 18 and polyquartenium 27.

All compounds from paragraph F) are described in detail in EP 1 173 539 B1.

All compositions described in paragraphs A) to F) may optionally contain a binder.

In the case of shell compositions according to A) to C), said compositions may contain at least 1% by weight or at least 5% by weight, preferably at least 15% by weight, more preferably, at least 35% by weight, most preferably at least 50% by weight and up to 100% by weight, or up to 99% by weight, up to 95% by weight, up to 90% by weight, or possibly up to 75% by weight of the materials given in paragraphs A) to C), preferably the materials given in paragraphs A) or B), particularly preferably the materials given in paragraph A1). The materials listed in paragraph A), in particular the materials listed in paragraph A1), are most preferred because these materials are obviously non-toxic, inexpensive, and they easily and quickly dissolve in water or in a washing load, in particular in hot water / washing load, as in an automatic dishwashing device.

In the case of shell compositions according to points D) to F), said compositions may contain at least 1% by weight or at least 5% by weight, preferably at least 15% by weight, more preferably, at least 35% by weight, most preferably at least 50% by weight of the compounds described in paragraphs A) to C), and from 1 to 99, or from 5 to 95, preferably from 10 to 75, more preferably from 15 to 50% by weight of at least one of the compounds mentioned in paragraphs D) -F) as additional compounds.

A preferred water soluble low molecular weight compound is any kind of sugar, amino acid, or other low molecular weight acid, such as citric acid and the like. A particular advantage of these materials is that, on the one hand, they dissolve / are dispersible in water, and on the other hand, they are not toxic.

It has been found that cellulose, starch, pectin, gelatin and / or low molecular weight sugar or amino acid compounds are particularly suitable as water-soluble / degradable / water-dispersible material for forming a water-soluble / water-dispersible coating, especially since they have a short dissolution time / dispersible, they are harmless (these are ordinary food ingredients), and as a result of their application, little residues are formed. On the other hand, the use of these materials provides a high-speed production method.

As for the material, in the present description, a water-soluble / degradable / dispersible material is defined as follows: more than 99% of the shell (layer) of such a material disperses in water for 15 minutes, preferably for 5 minutes in a beaker containing 1 liter of deionized water at 40 ° C, with stirring on a mixer at a speed of 200 rpm. It should be noted that as ingredients for the shell, you can use materials that are themselves insoluble, but, for example, form a dispersion, provided that the shell containing the specified material decomposes in water.

Preferred water-soluble / degradable / dispersible materials are: cellulose, especially preferred are cellulose fibers or microcrystalline cellulose with an average dry particle size of less than 1000 microns, preferably less than 500 microns, more preferably 250 microns or less, and particularly preferably 20 to 150 microns ; starch or derivatives of starch; pectin such as glycogen; or most preferred are proteins or peptides (at least 10 units), in particular gelatin or its derivatives, or peptide fragments.

Another suitable and preferred material is shellac, which is preferably used in fat-free form. Further suitable compounds are “low molecular weight compounds,” such as C ₃ -C ₆ sugar in the form of aldoses or ketoses, such as allose, altrose, glucose, mannose, gulose, idose, galactose, talose, psychosis, fructose, sorbose, tagatose, xylulose, ribulose, ribose, arabinose, xylose, lyxose, threose, erythrose, erythrulose, dihydroxyacetone or glyceraldehyde, or disaccharides, such as, for example, sucrose, lactose, maltose or isomalt, or oligosaccharides 3 to 10 sugar units, or amino acids, preferably native amino acids (usually found in natural proteins), not limited to the examples given. One particularly preferred low molecular weight compound is Isomalt ST sugar, including 6-O-α-D-glucopyranosyl-D-sorbitol units and 1-O-α-D-glucopyranosyl-D-mannitol dihydrate. Further information on this sugar can be found at http://www.chemistryworld.de/preise/prs-html/analysen/2444-spz.htm.

These materials can be used individually or as a mixture of individual materials. In one preferred embodiment, the cited material may (cited materials may) form one layer on the surface of the disposable packaging composition, in an alternative preferred embodiment of the invention, the disposable packaging composition includes at least two layers of the above materials, in which the layers may contain various materials selected from points A) -F), as well as various combinations of material (materials) from points A) -F) above.

As an additional ingredient, for example, to reduce the stickiness of the shell, polymorphic SiO ₂ can be added to the shell (for example, Aerosil type from Degussa, Germany).

In one embodiment of the invention, the above soluble / degradable / water dispersible compounds are used in combination with an additional water soluble or dispersible polymer. In the case where a water-soluble / dispersible polymer is used, it is clear that the water-soluble polymer may contain a homopolymer or copolymer. If the water-soluble polymer contains a copolymer, then the monomers in the copolymers may be randomly arranged, or the copolymer may be a block copolymer.

A suitable additional water-soluble polymer may include a cellulose derivative such as cellulose ether, for example hydroxypropyl cellulose, carboxymethyl cellulose, or the polymer includes polyvinyl alcohol monomers, polyvinyl pyrrolidone, partially hydrolyzed polyvinyl acetate, polyvinyl acetate, acacia, malova, acrylic, modified, acrylic, mesaconic, citraconic and methylene malonic acids or their salts, maleic anhydride, acrylamide, alkylene, vinyl methyl ether or styrene. Such polymers can be either homo- or copolymers of the aforementioned monomers. Polyvinyl pyrrolidone homopolymers or copolymers of polyvinyl alcohol are preferred, copolymers of polyvinyl alcohol and polycarboxylates are more preferred, copolymers of polyvinyl alcohol with maleic acid or (meth) acrylic acid are most preferred.

Preferably, the water-soluble polymer has dispersing properties, does not allow re-deposition of contaminants, has the property to release contaminants or other detergent properties.

The additional water-soluble polymer may also be a polymer containing sulfonic acid groups, such as, for example, the polymers described in EP-A 1 299 513, EP-A 1 363 986, WO 95/12654 or EP-A 0 877 002 .

The water soluble polymer system may include a contaminant releasing agent.

Examples of contaminant releasing agents include agents that have: (a) one or more non-ionic hydrophilic components consisting primarily of: (i) polyoxyethylene moieties with a degree of polymerization of at least 2 or (ii) hydroxypropylene or polyoxypropylene moieties with a degree polymerizations from 2 to 10, in which the hydrophilic fragment does not cover any oxypropylene unit, if it is not connected with adjacent elements on each end with a simple ether bond, or (iii) a mixture of oxyalkylene units comprising oxyethylene and 1 to 30 oxypropylene units, said hydrophilic moieties preferably containing at least 25% oxyethylene units, and more preferably especially for such components having 20 to 30 oxypropylene units, at least 50 % oxyethylene units; or (b) one or more hydrophobic components containing: (i) C3-hydroxyalkylene-terephthalate moieties, in which, if said hydrophobic components also contain oxyethylene-terephthalate, the ratio of oxyethylene-terephthalate to C3-hydroxyalkylene terephthalate units is 2: 1 or below, (ii) C4-C6 alkylene or hydroxy-C4-C6 alkylene moieties or mixtures thereof, (iii) poly (vinyl ester) moieties, preferably polyvinyl acetate having a polymerization degree of at least 2, or (iv ) ethers of alkyls C'-C4 or C4 hydroxyacylef aromatic substituents, or mixtures thereof, wherein said substituents are present in the form of derivatives of a Cj-C4 alkyl ether or C4-hydroxyalkyl cellulose ether or mixtures thereof; or a combination of (a) and (b). Typically, the polyoxyethylene moieties (a) (i) will have a degree of polymerization of from 1 to 200, although higher degrees of polymerization can be used, preferably from 3 to 150, more preferably from 6 to 100. Suitable hydroxy-C4-C6 alkylene hydrophobic moieties include , but not limited to, heads at the ends of polymer contaminant releasing agents, such as MO ₃ S (CH:) nOCH: CH ₂ O-, where M is sodium and n is an integer from 4 to 6. Other releasing contaminants agents useful in the invention also include the manufacture of celluloses such as hydroxyether cellulose polymers, copolymer blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate and the like. Such agents are commercially available and include cellulose hydroxyesters such as METHOCEL (Dow). Cellulose-based contaminating release agents suitable for use in the present invention also include agents selected from the group consisting of Ct-C4 alkyl and C4 hydroxyalkyl celluloses. Additional suitable surfactants include water-soluble cationic ethoxylated amine compounds that have the ability to remove contaminant particles / viscous substances and / or to prevent re-deposition of contaminants. Of these cationic compounds, ethoxylated cationic monoamines, diamines or triamines are particularly preferred.

A preferred shell system of the invention satisfies one or more of the following physical parameters:

a) High compatibility with coated materials (for example, detergents), such as: providing an effective barrier to materials that are inside the shell, and compatibility with hygroscopic and caustic materials.

b) High solubility in water, for example, 0.1-1 g of the material of the composition of the shell of the present invention is dissolved in 10 minutes in 1 liter of water in a beaker at 40 ° C and stirring at 200 rpm and for 20 minutes at 20 ° C under the same conditions. In order to meet these properties, the material may include a solubility modifying additive. Preferred examples of such additives include plasticizers.

Therefore, it is necessary to take into account that any additives must be substantially water soluble or dispersible, so that the overall system would retain its ability to dissolve / disperse in water.

In a preferred embodiment of the invention, the water-soluble coating system may include a plasticizer, the content of which will be more than 0.01%, preferably more than 0.1%, more preferably more than 0.5% and most preferably 1% or more, and up to 30%, preferably less than 30% by weight, more preferably 10% or less than 10%.

Suitable types of plasticizers include solvents.

Preferred examples of solvents include water, alkylene glycol and lower alkyl monoesters, glycerol, polyalcohols, propylene glycols, ethoxylated or propoxylated ethylene or propylene, glycerol esters, glycerol triacetate, polyethylene glycols, methyl esters and amides.

One of the preferred types of plasticizers contains polyethylene glycols (PEG) with an average molecular weight. Such materials preferably have a molecular weight of at least 150. Most preferred are PEGs with a molecular weight in the range of 200 to 3000. Another preferred type of plasticizer includes low molecular weight methyl esters. Such materials are substances of the general formula RC (O) —OCH ₃ in which R ranges from 1 to 18. Examples of suitable low molecular weight methyl esters include methyl acetate, methyl propionate, methyl octanoate and methyldodecanoate.

Suitable types of plasticizers will also include nonionic surfactants.

Preferred non-ionic surfactants included in the resin have a defoaming effect. Alkyl ethoxylates, alcohol condensation products with 1-80 moles of alkylene oxide (linear / branched / aromatic, optionally substituted C ₂ -C ₂₀ alkylene), are suitable for this application. The alkyl chain of the alcohol can be either straight or branched, primary or secondary and usually contains from 6 to 22 carbon atoms. Especially preferred are condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms, with 2-10 moles of ethylene oxide per mole of alcohol. Suitable surfactants for this include non-ionic surfactants POLY-TERGENT (R) SLF-18B from Olin Corporation.

In the present invention, ethoxylated fatty alcohols (C ₆ -C ₁₈ ) and mixed ethoxylated / propoxylated fatty alcohols (C ₆ -C ₁₈ ) are suitable as surfactants. Preferred ethoxylated fatty alcohols are ethoxylated fatty alcohols (C ₁₀ -C ₁₈ ) with a degree of ethoxylation from 3 to 50, most preferred are ethoxylated fatty alcohols (C ₁₂ -C ₁₈ ) with a degree of ethoxylation from 3 to 40. It is preferred that mixed ethoxylated / propoxylated fatty alcohols had an alkyl chain length of 10 to 18 carbon atoms, an ethoxylation degree of 3 to 30, and a propoxylation degree of 1 to 10.

Condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol are suitable for use in the present invention. Preferably, the molecular weight of the hydrophobic part of these compounds is from 1500 to 1800, and this hydrophobic part is not soluble in water. Examples of compounds of this type include some of the commercially available Pluronic (TM) surfactants sold by BASF.

Condensation products of ethylene oxide with the reaction product of propylene oxide and ethylene diamine are suitable for use in the present invention. The hydrophobic portion of these products contains the reaction product of ethylene diamine and an excess of propylene oxide and usually has a molecular weight of 2500 to 3000. Examples of this type of nonionic surfactant include some of the commercially available Tetronic (TM) compounds sold by BASF.

In a preferred embodiment of the present invention, the polymer system may comprise a mixed non-ionic surfactant system.

Suitable compounds include fatty esters of mono- or polyhydric alcohols having from 1 to 40 carbon atoms in the hydrocarbon chain. In the fatty ester, the portion related to the fatty acid can be obtained from mono- or polycarboxylic acids having from 1 to 40 carbon atoms in the hydrocarbon chain. Suitable examples of monocarboxylic fatty acids include behenic acid, stearic acid, oleic acid, palmitic acid, myristic acid, lauric acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid, and glycolic, bicol dihydroxyisobutyric acid. Examples of suitable polycarboxylic acids include: n -butyl malonic acid, isolimonic acid, citric acid, maleic acid, malic acid and succinic acid. The fatty alcohol radical in the fatty ester can be represented by mono- or polyhydric alcohols having from 1 to 40 atoms in the hydrocarbon chain. Examples of suitable fatty alcohols include behenyl, arachdyl, cocoyl, oleyl and lauryl alcohol, ethylene glycol, glycerin, ethanol, isopropanol, vinyl alcohol, diglycerin, xylitol, sucrose, erythritol, pentaerythritol, sorbitol or sorbitan. Preferably, the fatty acid and / or fatty alcohol groups joined in the fatty ester have from 1 to 24 atoms in the alkyl chain. Preferred fatty esters in the present invention are ethylene glycol, glycerin and sorbitan esters in which a portion of the fatty acid ester typically contains fragments selected from behenic acid, stearic acid, oleic acid, palmitic acid or myristic acid. Glycerol esters are also particularly preferred. Specific examples of fatty alcohol esters for use in the present invention include: stearyl acetate, palmityl lactate, cocoyl isobutyrate, oleyl maleate, oleyldimaleate and tallowyl propionate. Fatty acid esters suitable for use in the present invention include: xylitol monopalmitate, pentaerythritol monostearate, sucrose monostearate, glycerol monostearate, ethylene glycol monostearate, sorbitan esters. Suitable sorbitan esters include: sorbitan monostearate, sorbitan palmitate, sorbitan monolaurate, sorbitan monomyristate, sorbitan monobegenate, sorbitan monooleate, sorbitan dilaurate, sorbitan distearate, sorbitan dibehenate, sorbitan dioleate, and also alkyl polylates. Preferred glycerol esters in the present invention are glycerol monostearate, glycerol monooleate, glycerol monopalmitate, glycerol monobegenate and glycerol distearate. In addition, suitable agents include triglycerides, mono or diglycerides and their fully or partially hydrogenated derivatives; and any mixtures of these compounds. Suitable sources of fatty acid esters include vegetable oils, fish oil and animal fats. Suitable vegetable oils include soybean oil, cottonseed oil, castor oil, olive oil, peanut oil, safflower oil, sunflower oil, rapeseed oil, grape oil, palm oil and corn oil.

Waxes, including microcrystalline waxes, can be used as lubricants, although it is preferable to use them in a much smaller amount in the present invention due to their poor solubility in water. Preferred waxes have a melting point in the range of 35 ° C to 110 ° C and contain a total of 12 to 70 carbon atoms. Preferred are paraffin and microcrystalline type petroleum waxes, which are composed of long chain saturated hydrocarbon compounds.

The addition of a plasticizer reduces the water content in the shell composition before / during the application of the composition to the detergent tablet. Since the detergent tablet itself consists of decomposable / water dispersible components, it is undesirable to apply a lot of water to the tablet in a coating method. In addition, when using a plasticizer at the shell after drying, softness and elasticity increase, which results in greater tablet strength and the tablet becomes more convenient to handle.

Dye may enter the shell. The coloring matter, if present as a component in the resin, is preferably present at a level of from 0.001 wt.% To 1.5 wt.%, Preferably from 0.01 wt.% To 1 wt.%, Most preferably from 0.1 wt. % to 0.3 wt.%.

The coloring matter may include a dye or pigment. Examples of suitable dyes include reactive dyes, direct dyes, and azo dyes. Preferred dyes include phthalocyanine dyes, anthraquinone dye, quinoline dyes, monoazo, diazo and polyazo. More preferred dyes include anthraquinone, quinoline and monoazo dyes. Preferred dyes include SANDOLAN E-HRL 180% (trade name), SANDOLAN MILLING BLUE (trade name), TURQUOISE ACID BLUE (trade name) and SANDOLAN BRILLIANT GREEN (trade name), all of which are commercially available from Clariant, UK; HEXACOL QUINOLINE YELLOW (trade name) and HEXACOL BRILLIANT BLUE (trade name), both available from Paintings, UK; ULTRA MARINE BLUE (trade name), available from Holliday; or LEVAFIX TURQUISE BLUE EBA (trade name), commercially available from Bayer, USA; and liquid coloring agents, for example, Liquitit® type from Miliken.

Preferably, the product contains a cleansing composition or a composition of a water softening substance. The cleaning composition may be a detergent or an automatic dishwashing additive, a detergent or a washing additive, a cleanser composition for hard surfaces (such as a general purpose cleaner), or a toilet bowl cleanser.

It has been found that such a coated article is particularly convenient since the membrane material consists of components due to which the membrane is rapidly destroyed; it was found that the use of the product solves the problem of the formation of sediment on the items being cleaned, and this precipitate is formed from packaging materials with poor solubility.

The cleaning composition, among other components, may contain detergent additives, a bleaching system, a silver protection system, a glass protection system (against glass corrosion), an enzyme system, viscosity modifier, perfume or odor control system, one or more coloring agents, a modifier acidity, a bactericidal substance / fungicide, a surfactant system and a polymer system including a polymer that provides stain-removing properties and / or a polymer that provides film-forming properties (like, for example, described in EP-A 1299 513, 1363986, WO 95/12654 or EP-A 0877002), and tablet disintegrant, wherein the composition is not limited to these ingredients. However, the ingredients of the composition do not limit the present invention, and the composition of any detergent suitable for various purposes can be used. Typical components of automatic dishwashing compositions are disclosed, for example, in EP-A 1 268 729, EP-A 1 299 513, EP-A 1 571 198, EP-A 1 520 908 and EP-A 1 524 313. All described in their components may be part of the coated compositions of the present invention.

The composition can be formulated taking into account that the user will not come into contact with the composition either by inhalation or by contact with skin. For example, an enzyme may be included in a composition without regard to physical contact between the composition containing the enzyme and the user.

Preferred are dishwashing compositions, particularly preferred are dishwashing compositions that contain silver protection systems, have a low phosphate ion content and include a polymer system that provides good stain-removing and film-forming properties.

High dissolution rate is achieved due to a thin coating layer of the specified water-soluble material. Preferably, the present invention uses shells of water-soluble materials with a thickness of from 5 μm to 1000 μm, more preferably from 20 μm to 600 μm.

Thus, the shell corresponds to about 0.1% by weight to 10% by weight of the total amount of a single detergent packaging.

Optionally, said one-time packaging of the coated detergent may be presented in a bag that contains substantially unbound detergent particles. Preferably, said one-time detergent packaging is supplied in a container made of any material, such as cardboard, plastic or metal, if necessary, equipped with a shell.

As an additional feature, the indicated single packaging of the coated detergent may contain an additive that imparts an intolerable bitter taste, in particular if the coating contains any sugar. This additive can be applied to the specified detergent composition either as part of a water-soluble coating or in a separate coating. This supplement helps prevent children from accidentally swallowing the entire amount of detergent.

A single packaging of the detergent of the present invention can be made as follows:

the detergent composition is obtained in the form of granules or particles;

from a granular or dispersed detergent composition, by molding, tablets of the desired shape and size can be obtained by any of the methods known in the art, for example, selected from the group: compression, extrusion and molding; wherein said detergent composition is homogeneously distributed over the tablet or includes different layers or phases of certain detergent ingredients;

a water-disintegrating or dispersible material is obtained in the form of a solution or dispersion in water or in an organic solvent (which means that the material is dissolved or dispersed in an aqueous system or in a system containing at least one organic solvent, such as alcohol or similar solvents ), or in the form of a melt (for example, in the case of sugars);

then said detergent in granular or tablet form is coated with said solution, dispersion or melt of water-soluble or water-degradable material, resulting in a single packing of a coated detergent;

optionally, a single packaging of the coated detergent may pass through a drying step and / or a stabilization / solidification step;

moreover, the last two stages mentioned (coating and drying), optionally, can be repeated in order to apply more than one, preferably at least two layers of collapsing or dispersible in water material.

A water-soluble material obtained in the form of a solution, melt or dispersion, containing all the components that must be in the shell, is applied to the substance in any suitable way. Preferably, the material is applied by spraying, dipping, dipping, or the like.

EXAMPLE

The composition of the shell is prepared by mixing:

33% by weight of lime-treated bone gelatin, 120 grams according to Bloom (corresponds to gelatin with a molar weight of 80,000-150,000 g / mol),

23.5% by weight of isomalt (purity 100%, solid),

10.5% by weight of glycerol (99% by weight),

33% by weight of water;

the composition is heated in a water bath to about 60-95 ° C and applied to a detergent tablet with a brush. After drying, the composition forms a stable coating on the tablet.

When the composition was applied, the detergent tablet did not swell, and no damage was visible on it, since very little water came from the shell into the tablet. Most of the water was sorbed by gelatin and isomalt, which led to a stable and uniform coating of the tablet, which did not affect the detergent.

Claims (11)

1. A disposable packaging composition of a coated detergent in which the detergent composition is coated with a water-soluble or dispersible coating containing at least 50 to 99% of a compound selected from (A1) protein or peptide, preferably gelatin or its peptide (peptides), (A3) shellac or (B) amino acids (amino acids), or a mixture of at least two of them, and a plasticizer selected from monoalkyl ethers of alkylene glycol, glycerol, polyalcohols, propylene glycols, ethoxylated or propoxylated ethylene or propylene, glycerol esters, glycerol triacetate, polyethylene glycols, methyl esters and amides, and nonionic surfactants. 2. The composition according to claim 1, where the detergent composition is a composition for dishwashing, washing or softening water. 3. The composition according to claim 2, where the dishwashing composition does not contain a boron compound. 4. The composition of claim 2, wherein the dishwashing composition is in the form of a tablet. 5. The composition according to any one of claims 1 to 4, in which a soluble or dispersible in water material is applied by one or at least two layers. 6. A method of manufacturing a detergent composition according to any one of claims 1 to 5, comprising the step of applying an aqueous or organic solution, or dispersion, or melt, containing water-soluble or dispersible material and a plasticizer, to a single packaging of the detergent. 7. The method according to claim 6, in which the detergent composition is a composition for dishwashing, washing or softening water. 8. The method according to claim 7, in which the composition for washing dishes does not contain a boron compound. 9. The method according to claim 7, in which the composition for washing dishes is in the form of a tablet. 10. The method according to claim 6, in which a water-soluble or dispersible material is applied in one or at least two layers. 11. The method according to any one of claims 6 to 10, in which the stage of coating is selected from spraying, dipping and immersion.