EP2909295B1 - Compositions détergentes pour le linge - Google Patents

Compositions détergentes pour le linge Download PDF

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Publication number
EP2909295B1
EP2909295B1 EP13773270.7A EP13773270A EP2909295B1 EP 2909295 B1 EP2909295 B1 EP 2909295B1 EP 13773270 A EP13773270 A EP 13773270A EP 2909295 B1 EP2909295 B1 EP 2909295B1
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EP
European Patent Office
Prior art keywords
composition according
polyglucosamine
alkyl ether
carboxylic acid
acetylglucosamine
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EP13773270.7A
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German (de)
English (en)
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EP2909295A2 (fr
Inventor
Martin Charles Crossman
Craig Jonathon FAIRGRIEVE
Ezat Khoshdel
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/227—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with nitrogen-containing groups
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether carboxylic acids

Definitions

  • This invention relates to a laundry composition. More particularly, the invention is directed to a softening in the wash laundry composition.
  • Alkyl ether carboxylates are known as anionic surfactants for laundry formulations. We have found that a formulation comprising an alkyl ether carboxylic acid or alkyl ether carboxylate salt along with a polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine, provides excellent softening in the wash.
  • the invention is directed to a laundry detergent composition
  • a laundry detergent composition comprising:-
  • alkyl ether carboxylic acid or salt thereof, and the polyglucosamine or copolymer of glucosamine and N-acetylglucosamine are included in the form of an emulsion.
  • the emulsion is an aqueous emulsion.
  • the emulsion may optionally include an emulsifier.
  • compositions according to the invention comprise:-
  • polyglucosamine or copolymer of glucosamine and N-acetylglucosamine is chitosan.
  • polyglucosamine or copolymer of glucosamine and N-acetylglucosamine is neutralised by an organic acid.
  • the polyglucosamine or copolymer of glucosamine and N-acetylglucosamine is present at a level of from 0.5 to 7.5 wt.%, more preferably from 1 to 5 wt.%, most preferably at a level of from 1 to 2.5 wt.%.
  • the alkyl ether carboxylic acid or carboxylate salt thereof is present at a level of from 1 to 10 wt.%, more preferably at a level of from 2 to 7.5 wt.%.
  • Preferred alkyl ether carboxylic acid or carboxylate salt are depicted by formula 1: wherein R denotes a saturated or unsaturated C 6 -C 22 alkyl chain; R 1 and R 2 are either both hydrogen; or R 1 is hydrogen and R 2 is CH 3 ; or R 1 is CH 3 and R 2 is hydrogen; R 3 is hydrogen, or a solubilising cation such as sodium, potassium, ammonium or substituted ammonium; and, n is a number from 2 to 20, preferably 3 to 12, more preferably 3 to 10, which denotes the number of repeat units.
  • Preferred alkyl ether carboxylic acids or carboxylate salts thereof have a C 8 -C 18 alkyl chain with between 2 to 20, more preferably between 3 to 12, even more preferably between 3 to 10 glycol repeat units, wherein the glycol repeat units are selected from ethylene glycol, propylene glycol or mixtures thereof.
  • the molecule of formula 1 may contain mixtures of polyethylene glycol (also known as ethylene oxide) and polypropylene glycol (also known as propylene oxide) repeat units
  • a cationic polymer is present at a level of from 0.1 to 2.5 wt.%.
  • the nonionic surfactant comprises an alcohol ethoxylate.
  • the detergent composition is a liquid laundry detergent composition.
  • composition is a liquid, then preferably it has a pH of from 6.2 to 9, more preferably from pH 6.5 to 8.5, for example from pH 6.5 to 8.
  • the ratio by weight of the alkyl ether carboxylic acid or carboxylate salt thereof to the polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine is from 1.5:1 to 100:1.
  • the invention provides a method of softening fabrics, comprising the steps:-
  • the invention provides the use of an aqueous emulsion comprising an alkyl ether carboxylic acid or carboxylate salt thereof, and a polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine as described herein to provide softness to fabrics.
  • the term “comprising” means including, made up of, composed of, consisting and/or consisting essentially of.
  • the invention is directed to laundry compositions containing alkyl ether carboxylic acid or carboxylate salt thereof, a polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine, a nonionic surfactant, and an anionic surfactant.
  • the composition displays improved softening in the wash.
  • the invention can take any of a number of forms that are laundry compositions. Examples include powders, granules, bars, gels and liquids. Preferably the composition is in the form of a liquid laundry product. Preferably they are main wash products. It can take the form of a laundry composition for the main wash, which may be dilutable or non-dilutable.
  • the laundry composition may for example be an isotropic liquid, or a surfactant-structured liquid.
  • Particularly preferred forms of this invention include combination detergent/softener products to provide "softening in the wash".
  • the detergent composition is a liquid laundry detergent composition.
  • the liquid composition has a pH of from 6.2 to 9, more preferably from pH 6.5 to 8.5, for example from pH 6.5 to 8.
  • the ratio by weight of the alkyl ether carboxylic acid or carboxylate salt thereof to the polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine is from 1.5:1 to 100:1.
  • the composition comprises a polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine.
  • the polyglucosamine may be derived from plant or animal feedstocks and is prepared by deacetylating chitin, e.g. between 50-100% deacetylation.
  • the polyglucosamine may therefore be a copolymer of glucosamine and N-acetylglucosamine.
  • polyglucosamine e.g. where a chitin feedstock is 100% deacetylated
  • a copolymer of glucosamine and N-acetylglucosamine e.g. where a chitin feedstock is only partially deacetylated.
  • the polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine is present at a level of from 0.1 to 10 wt.%.
  • the polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine is present at a level of from 0.1 to 7.5 wt.%, more preferably at a level of from 0.1 to 5 wt.%, most preferably at a level of from 0.2 to 2.5 wt.%.
  • polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine may be present at a level of from 0.5 to 7.5 wt.%, preferably at a level of from 1 to 5 wt.%, more preferably at a level of from 1 to 2.5 wt.%.
  • the preferred polyglucosamine or a copolymer of glucosamine and N-acetylglucosamine is chitosan.
  • the chitosan can be low, medium or high molecular weight and polydispersity.
  • the polyglucosamine or copolymer of glucosamine and N-acetylglucosamine, preferably chitosan, may be neutralised (wholly or partially) by an organic acid.
  • composition comprises 1 to 15 wt.% alkyl ether carboxylic acid or carboxylate salt thereof.
  • alkyl ether carboxylic acid/carboxylate is usually derived from a fatty alcohol which is alkoxylated, usually with ethylene glycol and/or propylene glycol, a carboxylic acid is then introduced to the material to form the alkyl ether carboxylic acid.
  • the alkyl ether carboxylic acid or carboxylate salt thereof is present at a level of from 1 to 10 wt.%, more preferably at a level of from 2 to 7.5 wt.%.
  • Preferred alkyl ether carboxylic acid or carboxylate salt are depicted by formula 1: wherein R denotes a saturated or unsaturated C 6 -C 22 alkyl chain; R 1 and R 2 are either both hydrogen (in which case the repeat unit is ethylene glycol known as (EO) for short); or R 1 is hydrogen and R 2 is CH 3 ; or R 1 is CH 3 and R 2 is hydrogen (in which case the repeat unit is propylene glycol, known as (PO) for short); R 3 is hydrogen (in which case it is an alkyl ether carboxylic acid), or a solubilising cation such as sodium, potassium, ammonium or substituted ammonium (in which case it is an alkyl ether carboxylate salt); and, n is a number from 2 to 20, preferably 3 to 12, more preferably 3 to 10, which denotes the number of repeat units.
  • R denotes a saturated or unsaturated C 6 -C 22 alkyl chain
  • R 1 and R 2 are either both hydrogen (
  • Preferred alkyl ether carboxylic acids or carboxylate salts thereof have a C 8 -C 18 alkyl chain with between 2 to 20, more preferably between 3 to 12, even more preferably between 3 to 10 glycol repeat units, wherein the glycol repeat units are selected from ethylene glycol, propylene glycol or mixtures thereof.
  • the molecule of formula 1 may contain mixtures of polyethylene glycol (also known as ethylene oxide) and polypropylene glycol (also known as propylene oxide) repeat units.
  • a preferred salt is sodium.
  • suitable materials are oleyl alkyl ether (8EO) carboxylic acid, oleyl alkyl ether (10EO) carboxylic acid or laureth-5 carboxylic acid (5EO), and the sodium salts thereof.
  • the polyglucosamine and alkyl ether carboxylic acid or carboxylate salt thereof are most preferably delivered in the composition in the form of an emulsion. Delivery of a complex of these two actives in the form of an emulsion even more so improves the softening in the wash for fabrics that are treated.
  • the emulsion is an aqueous emulsion.
  • the alkyl ether carboxylic acid or carboxylate salt thereof is dissolved in water and protonated with mole equivalent acid (e.g. HCl), the polyglucosamine is added, and the mixture is allowed to stir for 24 hours.
  • the alkyl ether carboxylate/polyglucosamine emulsion is then filtered (for example through cheesecloth) to remove any undissolved reactants, and dialysed to remove any remaining free acid, resulting in the desired aqueous emulsion comprising the polyglucosamine and the alkyl ether carboxylic acid/carboxylate salt.
  • An optional emulsifier may be included to aid formation of the emulsion, though it is not required.
  • the detergent composition comprises nonionic surfactant and anionic surfactant.
  • the nonionic surfactant component preferably comprises alcohol ethoxylate.
  • the alcohol ethoxylates are formed from the reaction of primary or secondary alcohols with ethylene oxide. Typically an aliphatic C 8 to C 18 primary or secondary linear or branched alcohol is reacted with ethylene oxide in the required molar amount to produce the alcohol ethoxylate.
  • Preferred alcohol ethoxylates have from 2 to 40, preferably from 3 to 30, more preferably from 5 to 20 ethylene oxide units attached to the aliphatic chain.
  • the surfactants may be chosen from the surfactants described in " Surface Active Agents” Vol. 1, by Schwartz & Perry, Interscience 1949 , Vol. 2 by Schwartz, Perry & Berch, Interscience 1958 , in the current edition of "McCutcheon's Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in " Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 .
  • the surfactants used are saturated.
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are C 6 to C 22 alkyl phenol-ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic C 8 to C 18 primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 40 EO.
  • Suitable anionic detergent compounds which may be used can be water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C 8 to C 18 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C 9 to C 20 benzene sulphonates, particularly sodium linear secondary alkyl C 10 to C 15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the anionic surfactant may also include soaps of C 6 -C 22 fatty acids.
  • the preferred anionic detergent compounds are sodium C 11 to C 15 alkyl benzene sulphonates and sodium C 12 to C 18 alkyl sulphates. Salts of sulphonates included as hydrotrobes can additionally be considered as anionic surfactants as defined herein. Also applicable are surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074 , and alkyl monoglycosides.
  • the nonionic detergent is present in amounts of from 1 to 40 wt.%, preferably from 5 to 35 wt.%, more preferably from 6 to 20 wt.%.
  • the anionic surfactant is present in amounts of from 1 to 40 wt.%, preferably from 5 to 35 wt.%, more preferably from 6 to 20 wt.%.
  • the total amount of surfactant present in the composition is preferably at least 5 wt.%, more preferably at least 10 wt.%, More preferably the total amount of surfactant is from 15 to 65 wt.%, preferably from 10 to 50 wt.%.
  • surfactants such as cationic surfactants, and amphoteric/zwitterionic surfactants such as betaines may also be present in addition to the aforementioned nonionic and anionic surfactants.
  • composition may additionally comprise a cationic polymer.
  • This term refers to polymers having an overall positive charge.
  • the cationic polymer is selected from the group consisting of: cationic polysaccharide polymers, and cationic non-saccharide polymers having cationic protonated amine or quaternary ammonium functionalities that are homo or copolymers derived from monomers containing an amino or quaternary nitrogen functional group polymerised from at least one of the following monomer classes: acrylate, methacrylate, acrylamide, methacrylamide; allyls (including diallyl and methallyl); ethylene imine; and/or vinyl monomer classes, and mixtures thereof.
  • the cationic polymer is selected from the group consisting of cationic cellulose polymers, cationic guar polymers, cationic diallyl quaternary ammonium-containing polymers and homo or copolymers of dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate or tert-butylaminoethyl (meth)acrylate in their quaternary or protonated amine form, and mixtures thereof.
  • the cationic polymer is a cationic polysaccharide polymer.
  • the cationic polysaccharide polymer is a cationic guar or cationic cellulose polymer.
  • the cationic polymer is a cationic cellulose polymer, for example, quaternised hydroxy ethyl cellulose.
  • the composition may include a single cationic polymer or a mixture of cationic polymers from the same or different classes, i.e. the composition may contain a cationic polysaccharide polymer and a cationic non-polysaccharide polymer.
  • cationic polysaccharide polymer refers to polymers having a polysaccharide backbone and an overall positive charge.
  • Polysaccharides are polymers made up from monosaccharide monomers joined together by glycosidic bonds.
  • the cationic polysaccharide-based polymers present in the compositions of the invention have a modified polysaccharide backbone, modified in that additional chemical groups have been reacted with some of the free hydroxyl groups of the polysaccharide backbone to give an overall positive charge to the modified cellulosic monomer unit.
  • a preferred class of cationic polysaccharide polymers suitable for this invention are those that have a polysaccharide backbone modified to incorporate a quaternary ammonium salt.
  • the quaternary ammonium salt is linked to the polysaccharide backbone by a hydroxyethyl or hydroxypropyl group.
  • the charged nitrogen of the quaternary ammonium salt has one or more alkyl group substituents.
  • Preferred cationic polysaccharide-based polymers have a guar based, or cellulosic based backbone. Cellulose based cationic polymers are most preferred. Guar is a galactomannan having a ⁇ -1,4 linked mannose backbone with branchpoints to ⁇ -1,6 linked galactose units.
  • Suitable cationic guar gum derivatives such as guar hydroxypropyltrimonium chloride, specific examples of which include the Jaguar series commercially available from Rhone-Poulenc Incorporated and the N-Hance series commercially available from Aqualon Division of Hercules, Inc.
  • guar 2-hydroxy-3-(trimethylammonium) propyl ether salt is guar 2-hydroxy-3-(trimethylammonium) propyl ether salt.
  • Cellulose is a polysaccharide with glucose as its monomer, specifically it is a straight chain polymer of D-glucopyranose units linked via ⁇ -1,4 glycosidic bonds and is a linear, non-branched polymer.
  • Example cationic cellulose polymers are salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the field under the International Nomenclature for Cosmetic Ingredients as Polyquatemium 10 and is commercially available from the Amerchol Corporation, a subsidiary of The Dow Chemical Company, marketed as the Polymer LR, JR, and KG series of polymers.
  • Other suitable types of cationic celluloses include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide referred to in the field under the International Nomenclature for Cosmetic Ingredients as Polyquatemium 24. These materials are available from Amerchol Corporation marketed as Polymer LM-200.
  • Typical examples of preferred cationic cellulosic polymers include cocodimethylammonium hydroxypropyl oxyethyl cellulose, lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose, and stearyldimethylammonium hydroxyethyl cellulose; cellulose 2-hydroxyethyl 2-hydroxy 3-(trimethyl ammonio) propyl ether salt, polyquaternium-4, polyquaternium-10, polyquaternium-24 and polyquaternium-67 or mixtures thereof.
  • the cationic cellulosic polymer is a quaternised hydroxy ether cellulose cationic polymer. These are commonly known as polyquaternium-10. Suitable commercial cationic cellulosic polymer products for use according to the present invention are marketed by the Amerchol Corporation under the trade name UCARE.
  • Non-polysaccharide based cationic polymers may also be used.
  • Suitable cationic non-saccharide polymers include those having cationic protonated amine or quaternary ammonium functionalities that are homo or copolymers derived from monomers containing an amino or quaternary nitrogen functional group polymerised from at least one of the following monomer classes: acrylate, methacrylate, acrylamide, methacrylamide; allyls (including diallyl and methallyl); ethylene imine; and/or vinyl monomer classes, and mixtures thereof.
  • Preferred cationic non-saccharide polymers include cationic diallyl quaternary ammonium-containing polymers and homo or copolymers of dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate or tert-butylaminoethyl (meth)acrylate in their quaternary or protonated amine form, and mixtures thereof.
  • Suitable cationic polymers for use in the compositions include copolymers of 1-vinyl-2-pyrrolidone and 1-vinyl-3-methylimidazolium salt (known as Polyquatemium-16); copolymers of 1-vinyl-2-pyrrolidone and dimethylaminoethyl methacrylate (known as Polyquaternium-11); cationic diallyl quaternary ammonium-containing polymers, including, for example, dimethyldiallylammonium chloride homopolymer, copolymers of acrylamide and dimethyldiallylammonium chloride (known as Polyquatemium 6 and Polyquatemium 7 respectively); amphoteric copolymers of acrylic acid including copolymers of acrylic acid and dimethyldiallylammonium chloride (known as Polyquatemium 22), terpolymers of acrylic acid with dimethyldiallylammonium chloride and acrylamide (known as Polyquatemium 39), and terpolymers of acrylic acid with methacrylamidopropy
  • the counterion of the cationic polymer is freely chosen from the halides: chloride, bromide, and iodide; or from hydroxide, phosphate, sulphate, hydrosulphate, ethyl sulphate, methyl sulphate, formate, and acetate.
  • the cationic polymer is present at a level of from 0.1 to 2.5 wt.%, preferably from 0.1 to 2 wt.%, more preferably from 0.2 to 1 wt.%.
  • the aforementioned cationic polymers can be synthesised in, and are commercially available in, a number of different molecular weights.
  • the molecular weight of the cationic polymer is from 10,000 to 2,000,000 Daltons, more preferably from 10,000 to 500,000 Daltons.
  • the detergent composition may optionally comprise one or more of the following optional ingredients, shading dye, enzyme, antiredeposition polymer, dye transfer inhibiting polymer, builder, sequestrant, sunscreen and/or soil release polymer.
  • the detergent compositions may also optionally contain relatively low levels of organic detergent builder or sequestrant material.
  • organic detergent builder or sequestrant material examples include the alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates.
  • Specific examples include sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, ethylene diamine tetra-acetic acid, diethylenetriaminepentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid, and citric acid.
  • DEQUESTTM organic phosphonate type sequestering agents sold by Monsanto and alkanehydroxy phosphonates.
  • suitable organic builders include the higher molecular weight polymers and copolymers known to have builder properties.
  • such materials include appropriate polyacrylic acid, polymaleic acid, and polyacrylic/polymaleic acid copolymers and their salts, such as those sold by BASF under the name SOKALANTM.
  • SOKALANTM Another suitable builder is sodium carbonate.
  • the builder materials may comprise from about 0.5% to 20 wt%, preferably from 1 wt% to 10 wt%, of the composition.
  • the preferred builder level is less than 10 wt% and preferably less than 5 wt% of the composition.
  • the laundry detergent formulation is a non-phosphate built laundry detergent formulation, i.e., contains less than 1 wt.% of phosphate.
  • Shading dyes deposit to fabric during the wash or rinse step of the washing process providing a visible hue to the fabric. Shading of white garments may be done with any colour depending on consumer preference. Blue and Violet are particularly preferred shades and consequently preferred dyes or mixtures of dyes are ones that give a blue or violet shade on white fabrics. The shading dyes used are preferably blue or violet.
  • the shading dye chromophore is preferably selected from the group comprising: mono-azo, bis-azo, triphenylmethane, triphenodioxazine, phthalocyanin, naptholactam, azine and anthraquinone. Most preferably mono-azo, bis-azo, azine and anthraquinone.
  • the dye bears at least one sulfonate group.
  • Preferred shading dyes are selected from direct dyes, acid dyes, hydrophobic dyes, cationic dyes and reactive dyes.
  • the shading dye is present is present in the composition in range from 0.0001 to 0.01 wt %.
  • the composition preferably comprises a fluorescent agent (optical brightener).
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt.%, more preferably 0.01 to 0.1 wt.%.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g.
  • Preferred fluorescers are: sodium 2-(4-styryl-3-sulfophenyl)-2H-napthol[1,2-d]trazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfoslyryl)biphenyl.
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt.%, most preferably 0.1 to 1 wt.%.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co .
  • compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.
  • top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955 ]).
  • Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
  • the laundry treatment composition does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
  • a peroxygen bleach e.g., sodium percarbonate, sodium perborate, and peracid.
  • the composition may comprise one or more polymers.
  • Polymers can assist in the cleaning process by helping to retail soil in solution or suspension and/or preventing the transfer of dyes. Polymers can also assist in the soil removal process. Dye transfer, anti-redeposition and soil-release polymers are described in further detail below.
  • the composition may comprise one or more polymers.
  • polymers are carboxymethylcellulose, hydroxyethyl cellulose, hydroxpropyl cellulose, poly(ethylene glycol), poly(vinyl alcohol), ethoxylated polyamines, polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
  • Modern detergent compositions typically employ polymers as so-called 'dye-transfer inhibitors'. These prevent migration of dyes, especially during long soak times.
  • dye-transfer inhibiting agents include polyvinyl pyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, manganese pthalocyanine, peroxidases, and mixtures thereof, and are usually present at a level of from 0.01 to 10 wt.% based on total amount in the laundry composition.
  • Anti-redeposition polymers are designed to suspend or disperse soil.
  • antiredeposition polymers are ethoxylated and or propoxylated polyethylene imine or polycarboxylate materials, for example, Acrylic acid based homo or copolymers available under the trade mark ACUSOL from Dow Chemical, Alcosperse from Akzonobel or Sokolan from BASF.
  • suitable soil release polymers include graft copolymers of poly(vinyl ester), e.g., C 1 -C 6 vinyl esters, preferably poly(vinyl acetate) grafted onto polyalkylene oxide backbones.
  • Commercially available soil release agents of this kind include the SOKALAN type of material, e.g., SOKALAN HP-22, available from BASF (West Germany).
  • Further suitable soil release polymers of a different type include the commercially available material ZELCON 5126 (from DuPont) and MILEASE T (from ICI). If present, the soil release polymer may be included at a level of from from 0.01 to 10 wt.% based on total amount in the laundry composition.
  • Further examples of soil release polymers are terephthalic acid / glycol copolymers sold under the tradenames Texcare, Repel-o-tex, Gerol, Marloquest, Cirrasol.
  • the detergent composition especially when a liquid composition may optionally include a hydrotrope, which can prevent liquid crystal formation.
  • a hydrotrope which can prevent liquid crystal formation.
  • the addition of the hydrotrope thus aids the clarity/transparency of the composition.
  • Suitable hydrotropes include but are not limited to propylene glycol, ethanol, urea, salts of benzene sulphonate, toluene sulphonate, xylene sulphonate or cumene sulphonate.
  • Suitable salts include but are not limited to sodium, potassium, ammonium, monoethanolamine, triethanolamine. Salts of sulphonates can also be considered as anionic surfactants as defined herein.
  • the hydrotrope is selected from the group consisting of propylene glycol, xylene sulfonate, ethanol, and urea to provide optimum performance.
  • the amount of the hydrotrope is generally in the range of from 0 to 30%, preferably from 0.5 to 30%, more preferably from 0.5 to 30%, most preferably from 1 to 15%.
  • Enzymes can also be present in the formulation.
  • Preferred enzymes include protease, lipase, pectate lyase, amylase, cutinase, cellulase, mannanase. If present the enzymes may be stabilized with a known enzyme stabilizer for example boric acid.
  • Emulsogen Col 100 an Oleic alcohol polyethylene glycol ether (10EO) carboxylic acid available from Clariant
  • deionised water 500ml
  • Chitosan LMW 2.5g
  • the resulting product was filtered through cheesecloth to remove any undissolved reactants, and then dialysed to remove free acid.
  • Formulation A Ingredients Wt.% LAS Acid (Anionic surfactant) 5 SLES (Anionic surfactant) 2.5 NEODOL 25-7E (Nonionic surfactant) 7.5 PRIFAC 5908 (Fatty acid) 1 Propylene Glycol 20 Triethanolamine 2 Citric acid (50%) 2 Betaine 0.25 EPEI 2.5 NaOH To pH 7 Water To 100
  • the experiment involved dosing 500ml of water in a 1 litre bottle along with 4 pieces of terry towel. Liquor to cloth weight ratio was 10:1. The amounts of formulation were also added, and the bottle was agitated for 30 minutes on a rotary stirrer at room temperature to replicate a washing machine. The wash liquor was removed, and each set of terry towels were rinsed twice, for 10 minutes using 500ml of water, again on the rotary stirrer at room temperature. The terry towels were line dried.

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Claims (15)

  1. Composition de détergent de lavage comprenant :
    (a) de 1 à 40 % en masse de tensioactif non ionique ;
    (b) de 1 à 40 % en masse de tensioactif anionique ; et,
    (c) de 1 à 15 % en masse d'un acide alkyléther carboxylique ou sel de carboxylate de celui-ci ; et,
    (d) de 0,1 à 10 % en masse d'une polyglucosamine ou d'un copolymère de glucosamine et de N-acétylglucosamine.
  2. Composition selon la revendication 1, dans laquelle l'acide alkyléther carboxylique ou sel de celui-ci, et la polyglucosamine ou le copolymère de glucosamine et de N-acétylglucosamine sont inclus dans la forme d'une émulsion, de préférence d'une émulsion aqueuse, et comprenant éventuellement un émulsionnant.
  3. Composition selon la revendication 1 ou la revendication 2, comprenant :
    (a) de 1 à 40 % en masse de tensioactif non ionique ;
    (b) de 1 à 40 % en masse de tensioactif anionique ; et,
    (c) une émulsion aqueuse comprenant en masse de composition totale :
    (i) de 1 à 15 % en masse d'un acide alkyléther carboxylique ou sel de carboxylate de celui-ci ; et,
    (ii) de 0,1 à 10 % en masse d'une polyglucosamine ou d'un copolymère de glucosamine et de N-acétylglucosamine.
  4. Composition selon l'une quelconque des revendications précédentes, dans laquelle la polyglucosamine ou copolymère de glucosamine et de N-acétylglucosamine est le chitosane.
  5. Composition selon l'une quelconque des revendications précédentes, dans laquelle la polyglucosamine ou copolymère de glucosamine et de N-acétylglucosamine est neutralisé par un acide organique.
  6. Composition selon l'une quelconque des revendications précédentes, dans laquelle la polyglucosamine ou copolymère de glucosamine et de N-acétylglucosamine est présent à une teneur de 0,1 à 7,5 % en masse, de préférence à une teneur de 0,1 à 5 % en masse, encore mieux à une teneur de 0,2 à 2,5 % en masse.
  7. Composition selon l'une quelconque des revendications précédentes, dans laquelle l'acide alkyléther carboxylique ou sel de carboxylate de celui-ci est présent à une teneur de 1 à 10 % en masse, de préférence à une teneur de 2 à 7,5 % en masse.
  8. Composition selon l'une quelconque des revendications précédentes, dans laquelle l'acide alkyléther carboxylique ou sel de carboxylate est décrit par :
    Figure imgb0005
     où R représente une chaine alkyle en C6-C22 saturée ou insaturée ; R1 et R2 sont soit tous deux l'hydrogène ; soit R1 est l'hydrogène et R2 est CH3 ; soit R1 est CH3 et R2 est l'hydrogène ; R3 est l'hydrogène, ou un cation solubilisant tel que le sodium, le potassium, l'ammonium ou l'ammonium substitué ; et, n est un nombre de 2 à 20, de préférence de 3 à 12, indiquant le nombre d'unités répétitives.
  9. Composition selon l'une quelconque des revendications précédentes, dans laquelle l'acide alkyléther carboxylique ou sel de carboxylate présente une chaîne alkyle en C8-C18 avec 2-12 unités répétitives de glycol, dans laquelle les unités répétitives de glycol sont choisies parmi l'éthylèneglycol, le propylèneglycol ou des mélanges de ceux-ci.
  10. Composition selon l'une quelconque des revendications précédentes, comprenant de plus de 0,1 à 1 % en masse d'un polymère cationique.
  11. Composition selon l'une quelconque des revendications précédentes, laquelle est une composition liquide.
  12. Composition selon la revendication 11, présentant un pH de 6,2 à 9, de préférence un pH de 6,5 à 8,5, encore mieux un pH de 6,5 à 8.
  13. Composition selon l'une quelconque des revendications précédentes, dans laquelle le rapport en masse de l'acide alkyléther carboxylique ou sel de carboxylate de celui-ci à la polyglucosamine ou un copolymère de glucosamine et de N-acétylglucosamine est de 1,5:1 à 100:1.
  14. Procédé d'assouplissement de tissus, comprenant les éta pes :
    (a) de fourniture d'une composition de lavage selon l'une quelconque des revendications précédentes ;
    (b) de mise en contact d'un ou plusieurs articles de textile avec la composition en un ou plusieurs endroits pendant le lavage principal d'un procédé de lavage ; et,
    (c) le laisser sécher des articles de textile ou le séchage mécanique en tambour de ceux-ci.
  15. Utilisation d'une émulsion aqueuse selon l'une quelconque des revendications 2 à 13, comprenant un acide alkyléther carboxylique ou sel de carboxylate de celui-ci, et une polyglucosamine ou un copolymère de glucosamine et de N-acétylglucosamine pour fournir une souplesse à des tissus.
EP13773270.7A 2012-10-17 2013-10-07 Compositions détergentes pour le linge Active EP2909295B1 (fr)

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EP3294852B1 (fr) * 2015-05-08 2018-10-31 Unilever PLC Composition détergente pour lessive
BR112017026234B1 (pt) 2015-06-11 2022-10-04 Unilever Ip Holdings B.V. Composição de detergente para lavagem de roupas e método de tratamento doméstico de um tecido
BR112017026459B1 (pt) 2015-06-11 2022-05-10 Unilever Ip Holdings B.V. Composição de detergente para lavagem de roupas e método de tratamento doméstico de um tecido
CN108138083B (zh) * 2015-10-01 2021-06-11 荷兰联合利华有限公司 粉末洗衣洗涤剂组合物
WO2017162378A1 (fr) 2016-03-21 2017-09-28 Unilever Plc Composition de détergent à lessive
CN108779416B (zh) * 2016-04-08 2021-01-05 荷兰联合利华有限公司 洗衣洗涤剂组合物
WO2017174252A1 (fr) * 2016-04-08 2017-10-12 Unilever Plc Composition de détergent à lessive
US20180051234A1 (en) * 2016-08-17 2018-02-22 The Procter & Gamble Company Cleaning composition
WO2018035192A1 (fr) * 2016-08-17 2018-02-22 The Procter & Gamble Company Composition de nettoyage
US20180051232A1 (en) * 2016-08-17 2018-02-22 The Procter & Gamble Company Cleaning composition
WO2018108382A1 (fr) 2016-12-15 2018-06-21 Unilever Plc Composition détergente à lessive
EP3401384A1 (fr) 2017-05-10 2018-11-14 Unilever PLC Composition détergente liquide pour le lavage
EP3444325B1 (fr) * 2017-08-16 2023-10-04 The Procter & Gamble Company Procédé de nettoyage de surfaces domestiques

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US3003954A (en) * 1957-07-19 1961-10-10 Staley Mfg Co A E Methods and compositions of matter for softening textile fibers, yarns, and fabrics
JPS5338794A (en) * 1976-09-17 1978-04-10 Kao Corp Composition for fabric softening agent
EP0070074B2 (fr) 1981-07-13 1997-06-25 THE PROCTER & GAMBLE COMPANY Compositions moussantes contenant des agents tensio-actifs
GB8803036D0 (en) 1988-02-10 1988-03-09 Unilever Plc Liquid detergents
DE19703362C1 (de) * 1997-01-30 1997-11-20 Henkel Kgaa Verwendung von Chitosanen und/oder Chitosanderivaten
DE10157543A1 (de) * 2001-11-23 2003-06-12 Beiersdorf Ag Emulsionsgetränkte Tücher
DE102007029533A1 (de) * 2007-06-25 2009-01-02 Lothar Ernst Wilhelm Weber Weichspüler für Textilien
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EP2909295A2 (fr) 2015-08-26
BR112015008051A2 (pt) 2017-07-04
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AR093030A1 (es) 2015-05-13

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