TR201802447T4 - Laundry compositions. - Google Patents

Abstract

The present invention relates to a laundry composition. More particularly, the invention relates to a softener in the laundry composition. The laundry detergent composition of the invention comprises: (a) 1 to 40% by weight of nonionic surfactant; (b) 1 to 40% by weight of anionic surfactant; and (c) 0.1 to 10% by weight of a silicone having betaine functionality.

Description

DESCRIPTION WASHING COMPOSITIONS FIELD OF THE INVENTION The present invention relates to a laundry composition. In particular, invention laundry It is related to a softener in its composition.

BACKGROUND TO THE INVENTION Textile fabrics, including clothes, are traditionally cleaned with laundry detergents.

After cleaning, the fabrics can often feel stiff. in fabrics felt after cleaning and especially after multiple wash and wear cycles To increase the softness of fabrics to prevent hardening problems, the copper compounds added to the rinse water and the softener added to the detergent composition. Technologies including systems have been developed. These formulations are sometimes It is classified as a fabric softener in laundry detergents.

Silicone materials such as polydimethylsiloxanes (PDMS) fabric softening agents known as. Aqueous liquid detergent compositions are disclosed to provide Such compositions (A) have at least one detersive surfactant; (B) a nitrogen-containing amino or ammonium functional a silicone mixture containing a polysiloxane and a nitrogen-free non-functional polysiloxane droplets; and (C) detersive enzymes, dye transfer inhibitors, optical brighteners, at least one non-silicone additive selected from defoamers and combinations thereof Contains laundry aid. Softening product based on silicone softeners in laundry detergents stability is needed.

A formulation containing a silicone with betaine functionality is the problem mentioned above. We found that it could be fixed. With these formulations, the aforementioned previous A product is provided which exhibits improved stability according to the art.

SUMMARY OF THE INVENTION In a first aspect, the invention relates to a laundry detergent composition comprising: is intended for:- (a) 1% to 40% by weight of nonionic surfactant; (b) 1% to 40% by weight of anionic surfactant; and (c) a silicone with a betaine functionality of 0.1%] to 10% by weight.

Silicon with betaine functionality, preferably at a level of 025% to 10% by weight, preferably at a level of 025% to 75% by weight, more preferably 0.5 to 5% by weight available at the level.

Preferably, the nonionic surfactant and the anionic surfactant are each by weight. Preferably, the nonionic surfactant comprises an alcohol ethoxylate.

Preferably, the cationic polymer is present at a level of 01 to 25% by weight.

Preferably, the detergent composition is a liquid laundry detergent composition.

If the composition is a liquid, then it preferably has a pH of 6.2 to 9, more preferably pH 6.5 to It has a pH of 8.5.

DETAILED DESCRIPTION OF THE INVENTION As used herein, the term "contains" includes, made from, thanks, It means consists of and/or consists essentially of.

All percentages given are the total in the laundry composition unless otherwise stated. weight % based on quantity.

The invention is a nonionic surfactant, an anionic surfactant and betaine. For laundry compositions containing a functional silicone. Composition, silicone It exhibits improved stability when compared to other silicones in terms of substance.

Invention Form The invention may be in any of several forms which are laundry compositions. examples includes powders, granules, bars, gels and liquids. Preferably the composition is a liquid laundry product is in the form. They are preferably products related to the main wash. It can be diluted for the main wash or may be in the form of an indilutable laundry composition. Laundry composition For example, it can be an isotropic liquid or a surfactant-structured liquid. This Particularly preferred forms of the invention are those that provide "softness during washing". Contains detergent/softener combination products.

Preferably, the detergent composition is a liquid laundry detergent composition. Preferably liquid composition 6.2 has a pH of 9 to 9, more preferably a p-Pa of 6.5 to 8.5.

Silicon with Betaine Functionality Silicon with betaine functionality is present at a level of 01% to 10% by weight. Preferably silicone with betaine functionality at a level of 025 to 10% by weight, more preferably by weight preferably present at a level of from 05 to 25% by weight.

Silicone has a betaine functionality. Silicone can be any silicone, but preferred. The silicone backbones are made of polydimethylsiloxane (PDMS), also known as dimethicone. is based on.

Preferred betaine functionalities are linked to the preferred betaine structure below. has a silicone backbone: Silicone Spine O Preferred silicones are TEGOPREN 6950 and REWOCARE 6950 commercially available. available under the names Dimethicone Propyl PG-Betaine.

Surfactants The detergent composition contains nonionic surfactant and anionic surfactant.

The nonionic surfactant component preferably includes alcohol ethoxylate.

Alcohol ethoxylates are formed by the reaction of primary or secondary alcohols with ethylene oxide. they occur. Typically aliphatic C3 to Cig primary or secondary congenital or branched alcohol The alcohol reacts with the required amount of ethylene oxide to produce ethoxylate. Preferred alcohol ethoxylates 2 to 40, preferably 3 to 30, more preferably 5 to 20, attached to the aliphatic chain It has ethylene oxide units.

Surfactants "Surface Active Agents" Vol 1, Schwartz & Perry, Interscience 1949, Vol. 2, Schwartz, Perry & Berch, Interscience 1958 reference, Manufacturing "McCutcheon's Emulsifiers and Detergents" published by Confectioners Company in the current edition of the reference or "Tenside-Taschenbuch", H. Stache, 2nd Edition, Carl May be selected from surfactants disclosed in Hauser Verlag, 1981. Preferably The surfactants used are saturated.

Suitable nonionic detergent compounds that may be used include, in particular, a hydrophobic group and a compounds with reactive hydrogen atoms, for example aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, in particular either alone or with propylene oxide It also contains reaction products with ethylene oxide. Certain nonionic detergent compounds usually 5 to 25 EO, i.e. C6 to 25 units of ethylene oxide per molecule C2; alkyl phenol-ethylene oxide coudensates and aliphatic Cg to C13 primary or secondary condensation of linear or branched alcohols with ethylene oxide, usually 5 to 40 BG are products.

Suitable anionic detergent compounds to be used range from about 8 to about 22 carbon water-soluble organic sulfates and sulfonates with alkyl radicals containing alkali metal salts, wherein the term alkyl denotes the alkyl of higher acyl radicals. used to include. Examples of suitable synthetic anionic detergent compounds sodium and potassium alkyl sulfates, especially tallow or coconut obtained by sulfation of higher Cg to Cig alcohols produced from oil, sodium and potassium alkyl C9 to C20 benzene sulfonates, especially sodium linear secondary alkyl C1 to C15 benzene sulfonates; and sodium alkyl glyceryl ether sulfates, especially tallow or ethers of higher alcohols produced from coconut oil and synthetics derived from petroleum are alcohols. The anionic surfactant may also contain soaps of C6-C22 fatty acids.

Preferred anionic detergent compounds are sodium CII to Cis alkyl benzene sulfonates and sodium C 12 to C 18 alkyl sulfates. Sulfonate additionally included as hydrotropes salts thereof may also be considered to be included in the anionic surfactants described herein. EP-A- Salt precipitation resistant surfactant described in document 328 177 (Unilever) substances, alkyl polyglycoside surfactants described in document EP-A-070 074 and alkyl monoglycosides may also be applied.

Nonionic detergent preferably 1 to 40% by weight, preferably 2 to 35% by weight, more preferably in amounts of 4 to 20% by weight, or even 6 to 20% by weight.

Anionic surfactant preferably 1 to 40% by weight, preferably 2 to 35% by weight, more preferably 4 to 20% by weight, even 6 to 20% by weight.

The total amount of surfactant present in the composition is preferably 5% by weight, more preferably at least 10% by weight. More preferably, the total amount of surfactant is from 15% by weight to In addition to the above-mentioned nonionic and anionic surfactants, cationic surfactants active substances and amphoteric/zwitterionic surfactants, such as betaines other surfactants may also be present.

Optional Components Cationic Polymers The composition may additionally contain a cationic polymer.

This term refers to polymers having a positive charge pool.

Preferably, the cationic polymer consists of cationic polysaccharide polymers and acrylate, methacrylate, of acrylamide, methacrylamide monomer classes, allyls (including diallyl and metallyl); ethylene imine; and/or a polymerized amino from at least one of the vinyl monoiner classes, or homo or having cationic protonated amine or quaternary ammonium functionalities, which are copolymers from cationic non-saccharide polymers; and a mixture of these is selected.

More preferably cationic polymer, cationic cellulose polymers, cationic guar polymers, polymers containing cationic diallyl quaternary ammonium and dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate or tert-butylaminoethyl (meth)acrylate quaternary or protonated consisting of homo or copolymers in the amine form and mixtures thereof. selected from the group.

Most preferably, the cationic polymer is a cationic polysaccharide polymer.

More preferably, the cationic polysaccharide polymer is a cationic guar or cationic cellulose. is polymer. Most preferably, the cationic polymer is a cationic cellulose polymer, eg quaternary hydroxy is ethyl cellulose.

The composition is a single cationic polymer or one of the same or different classes of cationic polymers. The composition may contain a mixture of a cationic polysaccharide polymer and a cationic may contain non-polysaccharide polymer.

Cationic Polysaccharide Polymer corresponds to polymers with a total Polysaccharides joined by glycosidic bonds They are polymers made of monosaccharide monomers.

Cationic polysaccharide-based polymers in the compositions of the invention are a modified has a polysaccharide backbone, where additional chemical groups are attached to the polysaccharide backbone. modified cellulosic monomer by reacting with some of the free hydroxyl groups it is modified in the sense that it creates a total positive charge in the unit.

A preferred class of cationic polysaccharide polymers suitable for the present invention is a quaternary have a polysaccharide backbone modified to contain the ammonium salt are the ones. Preferably, the quaternary ammonium salt is attached to a polysaccharide backbone with a hydroxyethyl or bonded with a hydroxypropyl group. Preferably, the charged nitrogen of the quaternary ammonium salt is one or more alkyl groups have substituents.

Preferred cationic polysaccharide-based polymers are a guar-based or a cellulose-based one. It has a spine. Most preferred are cellulose-based cationic polymers. Guar (1- A ß-1.4-linked mannose with branching points to 1.6-linked galactose units It is a galactomannan with a backbone.

Suitable cationic guar gum derivatives are, for example, guar hydroxypropyltrimonium chloride, certain specimens are commercially available by Rhone-Poulenc Incorporated. The Jaguar series and commercially available Aqualon Division of Hercules, Inc. by Includes sold N-Hance series.

A preferred example of a guar-based cationic polymer is guar 2-hydroxy-3- (trimethylammonium) propyl ether salt.

Cellulose is a polysaccharide with glucose as its monoinner, specifically to specify ß-1,4 It is a straight-chain polymer of D-glucopyranose units linked by glycosidic bonds and It is a linear, unbranched polymer.

Examples of cationic cellulose polymers are trimethyl ammonium substituted epoxide. are salts of reacted hydroxyethyl cellulose and are used in the field of International Cosmetics. It is referred to as polyquatium 10 under the Component Nomenclature and is commercially available. by Amerchol Corporation, a subsidiary of Dow Chemical Company, The polymer is marketed as LR, .l R and KG series polymers. Other suitable cationic cellulose species laurii reacted with dimethyl ammonium substituted epoxide It contains hydroxyethyl cellulose polymeric quaternary ammonium salts. As polyquatium 24 under the International Nomenclature of Cosmetic Ingredients passes. These substances are named Polymer LM-200 by Amerchol Corporation. is marketed.

Typical examples of preferred cationic cellulosic polymers are cocodimethylammonium hydroxypropyl oxyethyl cellulose, lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose and stearyldimethylammonium hydroxyethyl cellulose; cellulose 2-hydroxyethyl12-hydroxy 3-(trimethyl ammonium) propyl ether salt, polyquaternium-4, polyquaternium-IO, polyquaternium-24 and polyquaternium- Contains 677 or mixtures thereof.

More preferably, the cationic cellulosic polymer is a quaternary hydroxy ether cellulose cationic is polymer. These are commonly known as polyquaternium-10. According to the present invention commercial cationic cellulosic polymer products suitable for use by Amerchol Corporation It is marketed under the trade name UCARE.

Other Cationic Polymer Classes Non-polysaccharide based cationic polymers can also be used. Cationic saccharide suitable polymers, acrylate, methacrylate, acrylamide, methacrylamide monomer classes of allyls (including diallyl and metallyl); ethylene imine; and/or vinyl monomer functionality of a polymerized amino or quaternary nitrogen from at least one of its classes cationic, which are homo- or copolymers derived from monomers containing a group that is those with protonated amine or quaternary ammonium functionalities and their Contains mixtures.

Preferred cationic non-saccharide polymers are cationic diallyl quaternary ammonium polymers containing dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate or tert- butylaminoethyl (meth)acrylate1n quaternary or protonated ain in the form of homo or copolymers and mixtures thereof.

Other cationic polymers suitable for use in compositions are 1-vinyl-2-pyrrolidone and 1- vinyl-3-methylimidazolium salt copolymers (known as polyquatemium-16); 1-vinyl-2- copolymers of pyrrolidone and dimethylaminoethyl methacrylate (known as polyquaternium-11); polyiners containing cationic diallyl quaternary ammonium, eg dimethyldiallylainonyl chloride homopolymer, acrylamide and dimethyldiallylammonium chloride copolymers (respectively known as polyquatium 6 and polyquatium 7); amphoteric acrylic acid copolymers, eg copolymers of acrylic acid and dimethyldiallylammonium chloride (polyquatemium 22 known as acrylic acid) with dimethyldiallylammonium chloride and acrylamide (polyquatemium 39) terpolymers and methacrylamidopropyl trimethylammonium of acrylic acid. terpolymers (known as polyquatemium 47) with chloride and methylacrylate. Choice cationically substituted monomers obtained from cationically substituted dialkylaminoallyl acrylamides, dialkylaminoallyl methacrylamides and combinations thereof.

The counterion of the cationic polymer is freely halides: from chloride, bromide and iodide; or hydroxide, phosphate, sulfate, hydrosulphate, ethyl sulfate, methyl sulfate, formate and acetate.

Cationic polymer 01 to 25% by weight, preferably 01 to 2% by weight, more preferably present at a level of 02 to 1% by weight.

Many of the above-mentioned cationic polyiners are of many different molecular weights. synthesized and commercially available. Preferably, the cationic polymer The detergent composition can optionally use one or more of the optional ingredients listed below. May contain more: shading dye, enzyme, dirt-removing polymer, dye transfer barrier polymer, reinforcing agent, sequestrant, sunscreen and/or dirt extractor polymer.

Enhancers and Sequestrants Detergent compositions optionally with relatively low levels of organic detergent It may also contain a potentiator or sequestrant. Examples of these are alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and Contains polyacetyl carboxylates. Specific examples are oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, ethylene diamine tetra-acetic acid, diethylenetriaminepentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid and citric acid sodium, potassium and lithium contains salts. Other examples are DEQUESTTM, organic phosphonate sold by Monsanto type are sequestrants and alkanhydroxy phosphonates.

Other suitable organic builders with builder properties It includes high molecular weight polymers and copolymers known to be For example, this such substances are suitable polyacrylic acid, polymaleic acid and polyacrylic/polymaleic acid copolymers and their salts, for example by BASF as SOKALANTM Includes sold. Another suitable potentiator is sodium carbonate.

If used, potentiators may comprise approximately 05 to 20% by weight of the composition, preferably 1% to 10% by weight. Preferred booster level the composition is less than 10% and preferably less than 5% by weight.

Preferably, the laundry detergent formulation is a non-phosphate laundry detergent. formulation, that is, it contains less than 1% phosphate by weight.

Toning Paint Shading dyes are applied to the fabric during the wash or rinse phase of the wash. precipitates, creating a visible tone in the fabric. Shading white clothes It can be made in any color according to your preference. Blue and Magenta are particularly preferred. and therefore the preferred dyes or dye mixtures are blue in white fabrics. or those that leave a magenta tone. The shading dyes used are preferably blue or it is magenta.

Shading dye chromophore preferably: mono-azo, bis-azo, triphenylmethane, triphenodioxazine, selected from the group consisting of phthalocyanine, naphtolactam, azine and anthraquinone. Top choice are mono-azo, bis-azo, azine and anthraquinone.

Most preferably, the dye contains at least one sulfonate group.

Preferred shading dyes are direct dyes, acid dyes, hydrophobic dyes, cationic dyes. selected from dyes and reactive dyes.

Range of 0.0001% to 001% by weight of shading dye component, if included available.

Fluorescent Substance The composition preferably contains a fluorescent agent (optical brightener). Fluorescent materials are fine. known and many such fluorescent substances are commercially available. Generally, These Fluorescent substances are provided in the form of alkali metal salts, eg sodium salts, and used. Total amount of fluorescent substance or substances used in the composition, Classes: Di-styryl biphenyl compounds, eg Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulfonic acid compounds, such as Tinopal DMS Pure Xtra and Blankophor (Commercial Brand) HRH and Pyrazoline compounds, for example Blankophor SN°. Preferred fluorescers: methyl-N-2 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino}stilbene-2-2' disulfonate, disodium disodium is 4,4'-bis(2-sulfoslyryl)biphenyl.

Perfume Preferably, the composition includes a perfume. Perfume preferably from 0.001% to 3% by weight, not more than preferably present in the range of 01 to 1% by weight. Many suitable examples of pariums CTFA (Cosmetics, Toiletries and Fragrance) published by CFTA Publications Association) 1992 International Purchasing Guide and by Schnell Publishing C0 published in the OPD 1993 Chemical Purchasing Guide 80th Annual Edition is offered.

It is usual for more than one perfume ingredient to be present in a formulation. Available four or more, preferably five or more, more preferably six, in compositions of the invention or more, or even seven or more different fragrance components is designed.

Preferably, 15% to 25% by weight of the composition mixtures are composed of top notes. Top sheet music by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]) has been defined. Preferred top notes are citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol. A peroxygen bleach, eg sodium percarbonate, sodium It is preferred that it does not contain perborate and peracid.

polymers The composition may contain one or more polymers. polymers dirt solution or suspension cleaning by helping it stay in and/or preventing the transfer of dyes they can support your cause. Polymers can also assist in soil removal. Paint Polymers for transport, dirt handling and dirt removal are further detailed below. is explained.

The composition may contain one or more polymers. Examples are carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, poly(ethylene glycol), poly(vinyl alcohol), ethoxylated polyamines, polycarboxylates, eg polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.

Bova Transfer Inhibitors Typically used as 'dye transfer inhibitors' in modern detergent compositions. named polymers are used. These are particularly long print times. They prevent the transfer of dyes during Generally, such dye transfer inhibitory substances polyvinyl pyrrolidone polymers, polyamine N-oxide polymers, N-vinylpyrrolidone and N-vinylimidazole copolymers, manganese phthalocyanine, peroxidases and their They contain blends and are usually based on the total amount in the laundry composition. they are present at a level of 0.01 to 10% by weight.

Dirt Carrier Polymers Dirt-carrying polymers are designed to suspend or disperse dirt. Typical soil-bearing polymers as ethoxylated and/or propoxylated polyethylene imir or polycarboxylate materials, eg homo or copolymers based on acrylic acid, Dow Chemical's ACUSOL, Akzonobel's Alcosperse or BASF's Sokolan commercial are available in the market.

Dirt Removing Polymers Suitable examples of soil-removing polymers are poly(Vinyl ester) acid copolymers, for example Ci-C(> Vinyl esters, preferably polyalkylene oxide backbones acylaninis poly(vinyl acetate),i includes. Commercially available such soil-removing agents SOKALAN type contains the substance, for example SOKALAN HP-229 from BASFl (Germany). Different other suitable soil-removing polymers of one type include commercially available ZELCON agents. Dirt-removing polymer, if present included in the laundry composition at a level of 001 to 10% by weight, based on the total amount can be done. Other examples of soil-removing polymers are Texcare, Repel-o-tex, Gerol, Marloquest are tereitalic acid/glycol copolymers sold under the trade names Cirrasol.

hydrotrope Optional liquid crystal formation, especially if the detergent composition is a liquid composition. May contain a hydrotrope that may inhibit Addition of hydrotrope helps with clarity/transparency. Suitable hydrotropes, not to be limited by these propylene glycol, ethanol, glycerol, urea, benzene sulfonate, toluene sulfonate, xylene sulfonate or cumene sulfonate salts. Suitable salts, not to be frustrated with them it contains sodium, potassium, ammonium, monoethanolamine, triethanolamine. Sulfonate salts thereof are also considered anionic surfactants as defined herein. can be done. Preferably, the hydrotrope is propylene glycol, xylene to provide optimum performance. selected from the group consisting of sulfonate, ethanol and urea. The amount of hydrotrope is usually 0% to 30%, is in the range.

enzymes Enzymes may also be present in the formulation. Preferred enzymes are protease, lipase, pectate Contains lyase, amylase, cutinase, cellulase, mannanazi. If present, enzymes are a known they can be stabilized with an enzyme stabilizer, eg boric acid. Enzyme selection available may be relative to the cationic polymer. Examples Various silicones are based on two anionic/nonionic surfactant laundry formulations, 'Y' and 'Z' corresponding to high and low surfactant concentrations, respectively Tested for compatibility with

Base Formulation Components Y (Wg.%) Z (Wg.%) Mono Propylene Glycol 15 17 Triethanolamine 2 4.55 Water 65.7 37.7 20g of the base formulation was filled into a flask into which an emulsified silicone was added.

The formulation was mixed, then kept at room temperature. Formulation stability visually observed for evaluation. Formulation clear, turbid or phase It was evaluated as subject to discrimination. Observation after 2 days (base formulation 'Y' for) or 1 week later (for base formulation 'Z'). If both observations If the formulation was clear, the product was considered stable. The silicones used in Examples A-G are softening silicones known in the prior art. Sample Especially silicon with betaine functionality is used. Emulsified silicones in the experiment used. Emulsified silicones were used 'as is'. not emulsified silicones were emulsified using Tergitol TMN-6.

The following test silicones were used:- Example Item Name A LZPDMS first cSt* l-ZPDMS lk cSt* + DPE LZPDMS 60k cSt* 2Arristan 64 ZFinish WRl 100 2Finish WR1100 + DPE Example Item Name G l'ZPDMS 100 nm emulsion l 3Rewocare IPDMS corresponds to polydimethylsiloxane; * lkcSt corresponds to the viscosity of the substance (lk cSt = 1,000 centi Stokes Etc...); 2 PDMS, Arristan, and Finish are examples of softener silicones and, respectively, Dow Chemical, Available from CHT-Beitlich and Wackera; 3 Rewocare 6950 Evonilöten available Silicone C, D, G and 1 were supplied as emulsions, silicone A and E were emulsified emulsified using Tergitol TMN-6 and silicone B and F alternatively of Rewocare 6950 supplied (supplied as an emulsion containing dipropylene glycol) was used) with a dipropylene glycol and Tergitol TMN-6 to reflect product properties. emulsified using the combination.

The results for the incorporation of silicon into the base formulation 'Y' are given below:- Example First Observation 2 Days Observation A Blurred Separation B Blurred Separation C Blurred Separation D Blurred Separation E Blurred Separation F Blurred Separation G Blurred Separation 1 Clear Clear Only silicon with betaine functionality produced an acceptable clear product. Back the remainder was unstable due to turbidity and eventual phase separation.

The results for the incorporation of silicon into the base formulation 'Z' are given below:- Example First Observation 1 Week Observation A Blurred Separation B Blurred Separation C Blurred Separation D Blurred Separation Example First Observation 1 Week Observation E Blurred Separation G Blurred Separation 1 Clear Clear Likewise, silicone with only betaine functionality is an acceptable clear product. revealed. The remainder was unstable due to turbidity and eventual phase separation.

Claims (7)

REQUESTS 1. A laundry detergent composition comprising:- (a) 1% to 40% by weight nonionic surfactant; (b) 1% to 40% by weight of anionic surfactant; and (c) 0.1% by weight] to 10% betaine functionality of a silicone. 2. A composition as in claim 11 wherein the betaine functionality is present at a level of 025 to 10% by weight, preferably at a level of 025 to 75% by weight, more preferably from 05 to 5% by weight. 3. The composition of claim 1 or claim 2, wherein the nonionic surfactant is at a level of from 4 to 40% by weight, preferably from 4 to 20% by weight, and anionic surfactant from 4 to 40% by weight, preferably from 4 to 40% by weight. Available at a level of 4 to 20%. 4. A composition according to any preceding claim wherein the nonionic surfactant comprises an alcohol ethoxylate. 5. A composition as claimed in any one of the preceding claims, further comprising from 01% to 1% by weight. 6. The composition of any preceding claim, which is a liquid composition. 7. The composition of claim 61 having a pH of 6.2 to 9, preferably pH 6.5 to 8.5.