GB2339203A - A method of dipensing - Google Patents

Abstract

The invention provides a method for improving the dispensing of a detergent composition or component thereof, comprising a surfactant and other detergent components, by providing a detergent composition comprising an intimate mixture of the surfactant component or part thereof and a crystalline layered silicate.

Description

1 2339203 Method for dispensing

Technical field

The invention relates to the use of a specific detergent component in detergent compositions for improvement of the dispensing of the product or components thereof.

Background to the Invention

In the past decades research efforts have been directed towards the development of detergents which have an improved cleaning performance. Furthermore, the focus has been on developing high density detergent products. It has recently been found that one of the main complaints of the users of detergent is 20 that the products do not always dispense or dissolve satisfactorily. This results in residues of the product in the dispensing drawer, in the washing machine and also on the fabrics after the wash, for example in the form of a gel or in the form of powdered residues. This can be in particular a problem with high density products, under cold water washing conditions or when limited amounts of water are used in 25 the washing process, for example in the initial phase of the washing process when small amounts of water are contacted with the product in the dispensing drawer or in the interior of the washing machine. The inventors have found that various detergent ingredients can cause these 30 problems. They have found that in particular certain surfactants can form gels upon initial contact with water. The inventors have also found that dense granules comprising high levels of surfactants, dense granules comprising high levels of alumnosilicates and granules comprising high levels of water can cause gelling and dissolution problems. For example, agglomerates of crystalline layered silicate 35 comprising high levels of water are disclosed in W092/07932 (Procter & Gamble), which however describes aluminosilicates to be more preferred builder ingredients than crystalline layered silicates. EP425804 discloses particles comprising high levels of aluminosilicate, surfactant and crystalline layered silicates. These agglomerates known in the art are often exactly those ingredients which are found to 40 cause dispensing problems in detergents.

The formation of these gels does not only limit the delivery of the gelling ingredients to the wash but also of other detergent ingredients trapped in the gel. This results in an ineffective delivery of the detergent composition as a whole or of part thereof and thus a reduced cleaning performance. Also, another problem associated with those certain ingredients which have a tendency to gel is that they may have a tendency to cake, resulting in a reduced flowability of the product. Furthermore, the resulting residues in the washing machine and possibly even on the fabrics are undesirable, because they result in a dirty appearance of the washing machines and clothes and even damage to the fabrics.

Another problem associated with detergent products is that certain ingredients are not water-soluble and have a tendency to deposit on fabrics or in the washing machine, forming undesirable residues.

The inventors have now found that when the surfactants are intimately mixed with a specific amount of crystalline layered silicate builder material, preferably by agglomeration, prior to addition to the detergent formulation, these problems are ameliorated. It has been found that the levels of crystalline layered silicate and surfactant which are intimately mixed are essential for ameliorating these problems, for example intimate mixtures comprising more than about 60% surfactant do not dispense satisfactory.

It has been found that the use of the intimately mixed anionic surfactant and crystalline layered silicate, in particular agglomerates thereof, in solid detergent compositions improves the dispensing of the detergent compositions, or improves the dissolution of the detergent compositions or reduces the gelling of the detergent compositions upon contact with water.

SummM of the invention

The invention provides a method for improving the dispensing of a detergent composition or component thereof, comprising a surfactant and other detergent components, by providing a detergent composition comprising an intimate mixture of the surfactant component and a crystalline layered silicate.

The invention also relates to the use of the intimate mixture obtainable by intimately mixing a surfactant and a crystallise layered silicate in a detergent composition, comprising a surfactant and other detergent components, for improving the dispensing of the detergent component.

The intimate mixture preferably comprises less than 10% or even less than 5% or even less than 3% by weight of free moisture.

3 The surfactant preferably comprises an anionic surfactant, in particular a sulphonate surfactant.

The detergent composition is preferably a solid dish washing detergent composition 5 or laundry detergent composition.

In the use or method of the present invention, by providing the surfactant or part thereof intimately mixed with a crystalline layered silicate, an improvement of the dispensing of a detergent composition is achieved. Hereby is meant that the dispensing of the detergent composition or component thereof in the wash water, including from a dispensing drawer of a washing machine or a dispensing device, is improved compared to detergent compositions which comprise the anionic surfactant not intimately mixed with a crystalline layered silicate.

The improvement in the dispensing may also include an improvement of the dissolution of a detergent composition or component thereof in the washing water, including the washing water in the dispensing drawer and the washing water in the interior of the washing machine, compared to detergent compositions which comprise the anionic surfactant not intimately mixed with an crystalline layered silicate.

The improvement of the dispensing of the detergent composition or component thereof may also include a reduction of deposition of residues of the detergent composition or components thereof on fabrics in the wash or on the washing machine, compared to detergent compositions which comprise the anionic surfactant not intimately mixed with an crystalline layered silicate.

The improvement of the dispensing of the detergent composition or component thereof may also include a reduction of the gelling of the detergent composition or component upon contact with water, in particularly at the beginning of the washing process, in particular the initial contact with water of the detergent composition in a dispensing drawer of a washing machine or in the interior of the washing machine, compositions which comprise the anionic surfactant not intimately mixed with an crystalline layered silicate.

Detailed description of the invention

The intimate mixture When used herein, 'intimate mixture' means for the purpose of the invention that components of the mixture are substantially homogeneously distributed in the mixture, preferably being in the form of a particle. Intimately mixing or mixed should be interpreted accordingly.

N_ The intimate mixture can be obtained by any process involving the mixing of the components, which can be part of a tableting process, extrusion process and granulation, including spray-drying and agglomeration processes. The intimately mixing step is preferably done by agglomerating the surfactant and the crystalline 5 layered silicate. This may be done by any conventional agglomeration process.

The intimate mixture preferably comprises the crystalline layered silicate material at a level of from 90% to 35%, more preferably from 80% to 40%, or even from 70% to 45% or even 50% by weight of the mixture.

Preferably, the weight ratio of the crystalline layered silicate to the surfactant in the intimate mixture is from 4:5 to 7:3, more preferably from 1: 1 to 2: 1, most preferably from 5:4 to 3:2.

Preferably, the intimate mixture comprises the surfactant at a level of from 10% to 55% or more preferably from 20% to 55%, or even 30% to 45% by weight of the mixture.

Preferably, the intimate mixture, in particular the agglomerated particle, comprises less than 10% or even less than 5% or most preferably less than 3% by weight of the intimate mixture of free moisture. The free moisture content as used herein, can be determined by placing 5 grams of the intimate mixture in a petri dish and placing this petri dish in a convection oven at 50'C for 2 hours, and subsequently measuring the weight loss, due to water evaporation.

The intimate mixture may also comprise additional ingredients, for example in amounts of from 0% to 25%, generally up to 20% or even 15% by weight of the intimate mixture. The precise nature of these additional ingredients, and levels of incorporation thereof will depend on the application of the component or compositions and the physical form of the components and the compositions.

The intimate mixture preferably comprises less than 15% or even less than 10% or even 5% or even 0% by weight of the mixture of aluminosilicates. If the intimate mixture is in the form of an agglomerate, any aluminosilictaes present is preferably in the form of dusted unto the agglomerate.

It may be preferred that the intimate mixture preferably comprises less than 15%, or even less than 10% or even less than 5% or even 0% of nonionic surfactants.

It may be preferred that the intimate mixture comprises polymeric binder material. Hereby, it is preferred to use as little binder material as possible. It may be preferred that the intimate mixture comprises less than 25%, preferably less than 10%, more preferably less than 5% by weight, most preferably 0% by weight of ethylene oxide polymers.

The intimate mixture herein is mixed with the other components of the detergent composition. The intimate mixture may thus be present in the form of a separate particle, or the intimate mixture may be agglomerated with other ingredients or may be sprayed or dusted with other ingredients. 5 When in the form of a separate particle, the particle preferably has a weight average particle size by weight similar to the weight average particle size of the other components of the detergent composition. The particle preferably has a weight average particle size of from 150 microns to 1500 microns, or more preferably 80% by weight of the particles has a particle size of more than 300 microns (80% by weight on Tyler sieve mesh 48) and less than 10% by weight of the particles has a particle size of more than 1180 microns or even 710 microns (on Tyler mesh sieve24). 15 Preferably, the density of intimate mixture, when present in a separate particle, is from 380g/litre to 1500gr/litre, or more preferably from 500 g/litre to 1200 g/litre, more preferably from 550 g/litre to 900g/litre. 20 Surfactant The compositions of the invention contain one or more surfactants, whereof at least a part is intimately mixed with the crystalline layered silicate material. The surfactant may comprise any surfactant known in the art, selected from anionic, nonionic, 25 cationic, ampholytic, amphoteric and zwitterionic surfactants and mixtures thereof. It should be understood that for the purpose of the invention the detergent composition may comprise surfactant which is not present in the intimate mixture with the crystalline layered silicate, but present in the other detergent components. 30 Preferably at least 50% by weight of the surfactant in the intimate is an anionic surfactant, preferably an anionic sulphonate surfactant, preferably an alkyl sulphonate surfactant, as described herein. More preferably, the anionic surfactant is from 5 0% to 100% or even from 60% to 100% or even from 75% to 100% by weight of the surfactant in the intimate mixture. 35 It may be preferred that the intimate mixture comprises as surfactant, only anionic surfactant or even only anionic sulphonate surfactant. It may be preferred that when nonionic surfactants are present, the level thereof is up 40 to 15% by weight of the mixture, or even less than 10% or even 5% by weight, or it may be preferred that no nonionic surfactant is present. Anionic Surfactant The compositions and the intimate mixtures in accord with the present invention 45 preferably comprise an anionic surfactant. Essentially any anionic surfactants useful (0 for detersive purposes can be comprised in the detergent composition. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and sarcosinate surfactants. Anionic sulfate and sulfonate 5 surfactants are preferred.

Highly preferred are surfactants, systems comprising a sulfonate, preferably a linear or branched alkyl benzene sulfonate, as described herein, preferably combined with a cationic surfactants as described herein.

Other anionic surfactants include the isethionates such as the acyl isethionates, Nacyl taurates, fatty acid amides of methyl tauride, alkyl succinates and sulfosuceinates, monoesters of sulfosuccinate (especially saturated and unsaturated C12-C 18 monoesters) diesters of sulfosuccinate (especially saturated and unsaturated C 6-C14 diesters), N-acyl sarcosinates. Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tallow oil.

Anionic Sulphonate Smda-qtant Highly preferred herein, in particular in the intimate mixture with the crystalline layered silicate, are anionic sulphonate surfactants. Particularly suitable for use herein include the salts Of C5-C20 linear or branched alkylbenzene sulphonates, but also may be used alkyl ester sulphonates, C6-C22 primary or secondary alkane sulphonates, C6-C24 olefin sulphonates, sulphonated polycarboxylic acids, alkyl glycerol sulphonates, fatty acyl glycerol sulphonates, fatty oleyl glycerol sulphonates, and any mixtures thereof Most preferred are Cg-C,, linear alkyl benzene sulphonates.

Anionic Sulfate Surfactant Anionic sulfate surfactants suitable for use herein include the linear and branched primary and secondary alkyl sulfates, alkyl ethoxysulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, the C5-CI7 acyl-N- (CI-C4 alkyl) and -N-(C I -C2 hydroxyalkyl) glucamine sulfates, and sulfates of alkylpolysaccharides such as the sulfates of alkylpolyglucoside (the nonionic nonsulfated compounds being described herein).

Alkyl sulfate surfactants are preferably selected from the linear and branched primary C I O-C 18 alkyl sulfates, more preferably the C I I -C 15 branched chain alkyl sulfates and the C 12-C 14 linear chain alkyl sulfates.

7 Alkyl ethoxysulfate surfactants are preferably selected from the group consisting of the C I O-C 18 alkyl sulfates which have been ethoxylated with from 0. 5 to 20 moles of ethylene oxide per molecule. More preferably, the alkyl ethoxysulfate surfactant is a C 11 -C 18, most preferably C I I -C 15 alkyl sulfate which has been ethoxylated with 5 from 0.5 to 7, preferably from 1 to 5, moles of ethylene oxide per molecule.

A particularly preferred aspect of the invention employs mixtures'of the preferred alkyl sulfate and/ or sulfonate and alkyl ethoxysulfate surfactants. Such mixtures have been disclosed in PCT Patent Application No. WO 93/18124.

Anionic Carboxylate Surfactant Suitable anionic carboxylate surfactants include the alkyl ethoxy carboxylates, the alkyl polyethoxy polycarboxylate surfactants and the soaps Calkyl carboxyls'), especially certain secondary soaps as described herein.

Suitable alkyl ethoxy carboxylates include those with the formula RO(CH2CH20)x CH2C00_M+ wherein R is a C6 to C 18 alkyl group, x ranges from 0 to 10, and the ethoxylate distribution is such that, on a weight basis, the amount of material where x is 0 is less than 20 % and M is a cation. Suitable alkyl polyethoxy polycarboxylate surfactants include those having the formula RO-(CHR I - CHR2-0)-R3 wherein R is a C6 to C 18 alkyl group, x is from I to 25, RI and R2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical, and mixtures thereof, and R3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having between I and 8 carbon atoms, and mixtures thereof.

Suitable soap surfactants include the secondary soap surfactants which contain a carboxyl unit connected to a secondary carbon. Preferred secondary soap surfactants for use herein are water-soluble members selected from the group consisting of the water-soluble salts of 2-methylI -undecanoic acid, 2-ethyl- I -decanoic acid, 2-propyl I -nonanoic acid, 2-butyl- I -octanoic acid and 2-pentyl- 1 -heptanoic acid.

Certain soaps may also be included as suds suppressors.

Alkali Metal Sarcosinate Surfactant Other suitable anionic surfactants are the alkali metal sarcosinates of formula R-CON (RI) CH2 COOM, wherein R is a C5-C 17 linear or branched alkyl or alkenyl group, R I is a C I -C4 alkyl group and M is an alkali metal ion. Preferred examples are the myristyl and oleoyl methyl sarcosinates in the form of their sodium salts.

Alkoxylated Nonionic Surfactant Essentially any alkoxylated nonionic surfactants are suitable herein. The ethoxylated and propoxylated nonionic surfactants are preferred.

19 Preferred alkoxylated surfactants can be selected from the classes of the nonionic condensates of alkyl phenols, nonionic ethoxylated alcohols, nonionic ethoxylated/propoxylated fatty alcohols, nonionic ethoxylate/propoxylate condensates with propylene glycol, and the nonionic ethoxylate condensation products with propylene oxide/ethylene diamine adducts.

Nonionic Alkonlated Alcohol Surfactant Nonionic surfactant can be present in the detergent compositions. It may be preferred that the level of ethoxylated nonionic surfactants in the intimate mixture are below 10% by weight of the mixture, preferably even 5% by weight.

The condensation products of aliphatic alcohols with from I to 25 moles of alkylene oxide, particularly ethylene oxide and/or propylene oxide, are suitable for use herein. The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.

Nonionic PolyhydE M Fqtty Acid Amide Surfactant Polyhydroxy fatty acid amides suitable for use herein are those having the structural formula R2CONRI Z wherein: R1 is H, C I -C4 hydrocarbyl, 2-hydroxy ethyl, 2hydroxy propyl, ethoxy, propoxy, or a mixture thereof, preferable C 1 -C4 alkyl, more preferably C 1 or C2 alkyl, most preferably C I alkyl (i.e., methyl); and R2 is a C5C31 hydrocarbyl, preferably straight-chain C5-Clq alkyl or alkenyl, more preferably straight-chain C9-C 17 alkyl or alkenyl, most preferably straight-chain C I I -C 17 alkYl or alkenyl, or mixture thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof Z preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably Z is a glycityl.

Nonionic Fgly Acid Amide Surfactant Suitable fatty acid amide surfactants include those having the formula: R6CON(R7)2 wherein R6 is an alkyl group containing from 7 to 21, preferably from 9 to 17 carbon atoms and each R7 is selected from the group consisting of hydrogen, C 1 -C4 alkyl, C I -C4 hydroxyalkyl, and -(C2H40)xH, where x is in the range of from I to 3.

Nonionic Alkyll2olysaccharide Surfactant Suitable alkylpolysaccharides for use herein are disclosed in U.S. Patent 4,565,647, Llenado, issued January 21, 1986, having a hydrophobic group containing from 6 to 9 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from 1.3 to 10 saccharide units.

Preferred alkylpolyglycosides have the formula: 5 R20(C nH2nO)t(glYCOSYI)x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 8. The glycosyl is preferably derived from glucose.

Amphoteric Surfactant Suitable amphoteric surfactants for use herein include the amine oxide surfactants and the alkyl amphocarboxylic acids.

Suitable amine oxides include those compounds having the formula R3(OR4)xNO(R5)2 wherein R3 is selected ftom an alkyl, hydroxyalkyl, acylamidopropoyl and alkyl phenyl group, or mixtures thereof, containing from 8 to 26 carbon atoms; R4 is an alkylene or hydroxyalkylene group containing from 2 to 3 carbon atoms, or mixtures thereof; x is from 0 to 5, preferably ftorn 0 to 3; and each R5 is an alkyl or hydroxyalkyl group containing ftom I to 3, or a polyethylene oxide group containing from I to 3 ethylene oxide groups. Preferred are C I O-C 18 alkyl dimethylamine oxide, and C 10- 18 acylamido alkyl dimethylamine oxide.

A suitable example of an alkyl aphodicarboxylic acid is Miranol(TM) C2M Conc. manufactured by Miranol, Inc., Dayton, NJ.

Zwitterionic Surfactant Zwitterionic surfactants can also be incorporated into the detergent compositions in accord with the invention. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. Betaine and sultaine surfactants are exemplary zwitterionic surfactants for use herein.

Suitable betaines are those compounds having the formula R(R')2N+R2COowherein R is a C6-C 18 hydrocarbyl group, each RI is typically C I -C3 alkYl, and R2 is a C I -C5 hydrocarbyl group. Preferred betaines are C 12-18 dimethyl- ammonio hexanoate and the C 10- 18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines. Complex betaine surfactants are also suitable for use herein.

Cationic Surfactants Suitable cationic surfactants to be used herein include the quaternary ammonium surfactants. Preferably the quaternary ammonium surfactant is a mono C6-C 16, preferably C6-C 10 N-alkyl or alkenyl ammonium surfactants wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups. Preferred are also the mono-alkoxylated and bis-alkoxylated arnine surfactants.

Another suitable group of cationic surfactants which can be used in the detergent compositions or components thereof herein are cationic ester surfactants.

The cationic ester surfactant is a, preferably water dispersible, compound having surfactant properties comprising at least one ester (i.e. -COO-) linkage and at least one cationically charged group.

Suitable cationic ester surfactants, including choline ester surfactants, have for example been disclosed in US Patents No.s 4228042, 4239660 and 4260529.

In one preferred aspect the ester linkage and cationicafly charged group are separated from each other in the surfactant molecule by a spacer group consisting of a chain comprising at least three atoms (i.e. of three atoms chain length), preferably from three to eight atoms, more preferably from three to five atoms, most preferably three atoms. The atoms forming the spacer group chain are selected from the group consisting of carbon, nitrogen and oxygen atoms and any mixtures thereof, with the proviso that any nitrogen or oxygen atom in said chain connects only with carbon atoms in the chain. Thus spacer groups having, for example, -0-0- (i.e. peroxide), - N-N-, and -N-0- linkages are excluded, whilst spacer groups having, for example CH2-0- CH2- and -CH2-NH-CH2- linkages are included. In a preferred aspect the spacer group chain comprises only carbon atoms, most preferably the chain is a hydrocarbyl chain.

Cationic mono-alkoLcylated arnine surfactants Highly preferred herein are cationic mono-alkoxylated amine surfactant preferably of the general formula 1:

R ApR 4 N + X_ R wherein RI is an alkyl or alkenyl moiety containing from about 6 to about 18 carbon atoms, preferably 6 to about 16 carbon atoms, most preferably from about 6 to about 14 carbon atoms; R2 and R3 are each independently alkyl groups containing from one to about three carbon atoms, preferably methyl, most preferably both R2 and R3 I I are methyl groups; R4 is selected from hydrogen (preferred), methyl and ethyl; X- is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, to provide electrical neutrality; A is a alkoxy group, especially a ethoxy, propoxy or butoxy group; and p is from 0 to about 30, preferably 2 to about 15, most preferably 2 to 5 about8.

Preferably the ApR4 group in formula I has p=1 and is a hydroxyalkyl group, having no greater than 6 carbon atoms whereby the --OH group is separated from the quaternary ammonium nitrogen atom by no more than 3 carbon atoms. Particularly preferred ApR4 groups are -CH2CH20H, --CH2CH2CH20H, - CH2CH(CH3)OH and -CH(CH3)CH20H, with --CH2CH20H being particularly preferred. Preferred RI groups are linear alkyl groups. Linear RI groups having from 8 to 14 carbon atoms are preferred.

Another highly preferred cationic mono-alkoxylated amine surfactants for use herein are of the formula R (CH2CH20)2-5H CH3 CH3 wherein R I is C I O-C 18 hydrocarbyl and mixtures thereof, especially C I O-C 14 alkyl, preferably C 10 and C 12 alkyl, and X is any convenient anion to provide charge 20 balance, preferably chloride or bromide.

As noted, compounds of the foregoing type include those wherein the ethoxy (CH2CH20) units (EO) are replaced by butoxy, isopropoxy [CH(CH3)CH20] and [CH2CH(CH301 units (i-Pr) or n-propoxy units (Pr), or mixtures of EO and/or Pr 25 and/or i-Pr units.

The levels of the cationic mono-alkoxylated amine surfactants used in detergent compositions of the invention is preferably from 0. 1% to 20%, more preferably from 0.2% to 7%, most preferably from 0.3% to 3.0% by weight of the composition. 30 Cationic bis-alkoxylated amine surfactant The cationic bis-alkoxylated amine surfactant preferably has the general formula II:

R ApR N + X R NqR wherein RI is an alkyl or alkenyl moiety containing from about 8 to about 18 carbon atoms, preferably 10 to about 16 carbon atoms, most preferably from about 10 to about 14 carbon atoms; R2 is an alkyl group containing from one to three carbon atoms, preferably methyl; R3 and R4 can vary independently and are selected from 5 hydrogen (preferred), methyl and ethyl, X- is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, sufficient to provide electrical neutrality. A and A' can vary independently and are each selected from C I -C4 alkoxy, especially ethoxy, (i.e., -CH2CH20-), propoxy, butoxy and mixtures thereof-, p is from 1 to about 30, preferably I to about 4 and q is from I to about 30, preferably I to about 4, and most preferably both p and q are 1.

Highly preferred cationic bis-alkoxylated amine surfactants for use herein are of the formula R CH,CH,OH """" N XG CH3 CH2CH20H wherein R I is C I O-C 18 hydrocarbyl and mixtures thereof, preferably C 10, C 12, C 14 alkyl and mixtures thereof X is any convenient anion to provide charge balance, preferably chloride. With reference to the general cationic bisalkoxylated amine structure noted above, since in a preferred compound RI is derived from (coconut) C I 2-C 14 alkyl fraction fatty acids, R2 is methyl and ApR3 and A'qR4 are each monoethoxy.

Other cationic, bis-alkoxylated amine surfactants useful herein include compounds of the formula:

R N ',,,(CH2CH20)pH X- R"-' '--"(CH2CH20)qH wherein R I is C I O-C 18 hydrocarbyl, preferably C 1 O-C 14 alkyl, independently p is I to about 3 and q is I to about 3, R2 is C I -C3 alkyl, preferably methyl, and X is an anion, especially chloride or bromide. Other compounds of the foregoing type include those wherein the ethoxy 30 (CH2CH20) units (EO) are replacedby butoxy (Bu) isopropoxy [CH(CH3)CH20] and [CH2CH(CH301 units (i-Pr) or n-propoxy units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.

13 Crystalline layered silicate The preferred crystalline layered silicate herein have the general formula NaMSix02x+l.yH20 wherein M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20. Crystalline layered sodium silicates of this type are disclosed in EP-A 0 164514 and methods for their preparation are disclosed in DE-A-3417649 and DE A-3742043. For the purpose of the present invention, x in the general formula above has a value of 2, 3 or 4 and is preferably 2. M is preferably H, K or Na or mixtures thereof, preferably Na. The most preferred material is a-Na2Si205, p- Na2Si2O5 or 5-Na2Si2O5, or mixtures thereof, preferably being at least 75% -Na2Si2O5, for example available from Clariant as NaSKS-6.

The crystalline layered silicate material, in particular of the formula Na2Si205 may optionally comprise other elements such as B, P, S, for example obtained by processes as described in EP 578986-B.

It may be preferred that the crystalline layered silicate is a coarse material having an weight average particle size above 150 microns, as measurable by sieving on Tyler sieves, or fine material of weight average particle size below 20 microns, Malvern Instruments SB.OC light scattering equipment.

It may also be preferred that at least 95% or even 98% or even 100% by weight of the crystalline layered silicate has a particle size of less than 102 microns or more preferably less than 88.2 microns or even less than 65.6 microns, whilst having a weight average particle size of more than 15.0 microns, preferably from 16.0 to 48.8 microns or even from 17.3 to 42.1 microns, as measured with a Malvern Instruments SB.OC light scattering equipment. Preferably, when the weight average particle is from 16.0 to 48.8 microns, at least 90%by weight of the particle has a particle size of from 17.3 to 88.2 and when the weight average particle is from 17.3 to 42. 1 microns, at least 90% by weight of the particle has a particle size of from 23.3 to 76.0, as measured with a Malvern Instruments SB.OC light scattering equipment, according to the Malvern Instruments users manual.

14- It may be preferred that the crystalline layered silicate is ground material, preferably obtained by grinding in an air jet mill or ceramic ball mill coarse crystalline layered silicate material.

Detergent compositions Additional detergent inUedients The compositions in accord with the invention and also the intimate mixture herein 10 may contain additional detergent components. The precise nature of these additional components, and levels of incorporation thereof will depend on the physical form of the composition or the intimate mixture, and the precise nature of the washing operation for which it is to be used. 15 The compositions of the invention preferably contain one or more additional detergent components selected ftom bleaches, bleach catalysts, alkalinity systems, additional builders, organic polymeric compounds, enzymes, suds suppressors, lime soap, dispersants, soil suspension and anti-redeposition agents soil releasing agents, perfumes, brightners, photobleaching agents and additional corrosion inhibitors. 20 Perhydrate Bleaches A preferred additional components of the compositions or intimate mixtures herein is a perhydrate bleach, such as metal perborates, metal percarbonates, particularly the sodium salts. Perborate can be mono or tetra hydrated. Sodium percarbonate has the 25 formula corresponding to 2Na2C03.3H202, and is available commercially as a crystalline solid. Potassium peroxymonopersulfate, sodium per is another optional inorganic perhydrate salt of use in the detergent compositions herein. 30 Organic PeroXyacid Bleaching System A preferred feature of the composition or intimate mixtures herein is an organic peroxyacid bleaching system. In one preferred execution the bleaching system contains a hydrogen peroxide source and an organic peroxyacid bleach precursor 35 compound. The production of the organic peroxyacid occurs by an in situ reaction of the precursor with a source of hydrogen peroxide. Preferred sources of hydrogen peroxide include inorganic perhydrate bleaches, such as the perborate bleach of the claimed invention. In an alternative preferred execution a preformed organic peroxyacid is incorporated directly into the composition. Compositions containing 40 mixtures of a hydrogen peroxide source and organic peroxyacid precursor in combination with a preformed organic peroxyacid are also envisaged.

Peroxyacid Bleach Precursor Peroxyacid bleach precursors are compounds which react with hydrogen peroxide in a perhydrolysis reaction to produce a peroxyacid. Generally peroxyacid bleach precursors may be represented as 5 0 where L is a leaving group and X is essentially any functionality, such that on perhydroloysis the structure of the peroxyacid produced is 10 0 11 X-C-0011 Peroxyacid bleach precursor compounds are preferably incorporated at a level of from 0. 5 % to 2 0% by weight, more preferably from I% to 15% by weight, most preferably from 1. 5% to 10% by weight of the detergent compositions.

Suitable peroxyacid bleach precursor compounds typically contain one or more N- or O-acyl groups, which precursors can be selected from a wide range of classes. Suitable classes include anhydrides, esters, imides, lactams and acylated derivatives of imidazoles and oximes. Examples of useful materials within these classes are disclosed in GB-A-1586789. Suitable esters are disclosed in GB-A-836988, 864798, 1147871, 2143231 and EP-A-0 1703 86.

Leaving Groups The leaving group, hereinafter L group, must be sufficiently reactive for the perhydrolysis reaction to occur within the optimum time frame (e.g., a wash cycle). However, if L is too reactive, this activator will be difficult to stabilize for use in a bleaching composition.

Preferred L groups are selected from the group consisting of- Y R3y 0 0 A 11 4 -N-C R1 -N N -N-C-CH-R 1 3 Li 1 3 1 R R Y I Y R 3 Y I I 0 0 11 Y 0 CH2_C '>_U" 11 / 4 N NR4 R3 0 Y 1 11 1 _U_(;=CHR4 and -N-S-CH-R4 1 11 R 3 0 and mixtures thereof, wherein R 1 is an alkyl, aryl, or alkaryl group containing from I to 14 carbon atoms, R 3 is an alkyl chain containing from 1 to 8 carbon atoms, R 4 is 3 H or R, and Y is H or a solubilizing group. Any of Rl, R3 and 0 may be substituted by essentially any fimctional group including, for example alkyl, hydroxy, alkoxy, halogen, amine, nitrosyl, amide and ammonium or alkyl animmonium groups.

The preferred solubilizing groups are -SO 3- M +' _CO 2- M +,-SO 4- M +' N + (R 3)4X and 0<--N(R 3)3 and most preferably -SO 3- M + and -CO 2- M + wherein R 3 is an alkyl chain containing from I to 4 carbon atoms, M is a cation which provides solubility to the bleach activator and X is an anion which provides solubility to the bleach activator. Preferably, M is an alkali metal, ammonium or substituted ammonium cation, with sodium and potassium being most preferred, and X is a halide, hydroxide, methylsulfate or acetate anion.

17 Alkyl Percarboxylic Acid Bleach Precursors Alkyl percarboxylic acid bleach precursors form percarboxylic acids on perhydrolysis. Preferred precursors of this type provide peracetic acid on 5 perhydrolysis.

Preferred alkyl percarboxylic precursor compounds of the imide type include the N- N,N IN I tetra acetylated alkylene diamines wherein the alkylene group contains from I to 6 carbon atoms, particularly those compounds in which the alkylene group contains 1, 2 and 6 carbon atoms. Tetraacetyl ethylene diamine (TAED) is particularly preferred. The TAED is preferably not present in the agglomerated particle of the present invention, but preferably present in the detergent composition, comprising the particle.

Other preferred alkyl percarboxylic acid precursors include sodium 3,5,5tri-methyl hexanoyloxybenzene sulfonate (iso-NOBS), sodium nonanoyloxybenzene sulfonate (NOBS), sodium acetoxybenzene sulfonate (ABS) and pentaacetyl glucose.

Amide Substituted Plkyl Peroxvacid Precursors Amide substituted alkyl peroxyacid precursor compounds are suitable herein, including those of the following general formulae:

R1 -C-N-R2-C-L R1 -N-C-RZ-C-L I I 11 1 5 11 1 5 0 R 0 or K 0 0 wherein R1 is an alkyl group with from I to 14 carbon atoms, R2 is an alkylene group containing from I to 14 carbon atoms, and R5 is H or an alkyl group containing I to 10 carbon atoms and L can be essentially any leaving group. Amide substituted bleach activator compounds of this type are described in EP-A-0170386.

Perbenzoic Acid Precursor Perbenzoic acid precursor compounds provide perbenzoic acid on perhydrolysis. Suitable 0-acylated perbenzoic acid precursor compounds include the substituted and unsubstituted benzoyl oxybenzene sulfonates, and the benzoylation products of sorbitol, glucose, and all saccharides with benzoylating agents, and those of the imide type including N-benzoyl succinimide, tetrabenzoyl ethylene diamine and the N-benzoyl substituted ureas. Suitable imidazole type perbenzoic acid precursors include N-benzoyl imidazole and N-benzoyl benzimidazole. Other useful N-acyl group-containing perbenzoic acid precursors include Nbenzoyl pyrrolidone, dibenzoyl taurine and benzoyl pyroglutarnic acid.

Cationic Peroxyacid Precursors Cationic peroxyacid precursor compounds produce cationic peroxyacids on perhydrolysis.

Typically, cationic peroxyacid precursors are fort-ned by substituting the peroxyacid part of a suitable peroxyacid precursor compound with a positively charged functional group, such as an ammonium or alkyl ammmonium group, preferably an ethyl or methyl ammonium group. Cationic peroxyacid precursors are typically present in the solid detergent compositions as a salt with a suitable anion, such as a 10 halide ion. The peroxyacid precursor compound to be so cationically substituted may be a perbenzoic acid, or substituted derivative thereof, precursor compound as described hereinbefore. Alternatively, the peroxyacid precursor compound may be an alkyl 15 percarboxylic acid precursor compound or an amide substituted alkyl peroxyacid precursor as described hereinafter. Cationic peroxyacid precursors are described in U.S. Patents 4,904,406; 4,751,015; 4,988,451; 4,397,757; 5,269,962; 5,127,852; 5,093, 022; 5,106,528; U.K. 1,382,594; 20 EP 475,512, 458,396 and 284,292; and in JP 87-318,332.

Examples of preferred cationic peroxyacid precursors are described in UK Patent Application No. 9407944.9 and US Patent Application Nos. 08/298903, 08/298650, 08/298904 and 08/298906.

Suitable cationic peroxyacid precursors include any of the ammonium or alkyl ammonium substituted alkyl or benzoyl oxybenzene sulfonates, Nacylated caprolactams, and monobenzoyltetraacetyl glucose benzoyl peroxides. Preferred cationic peroxyacid precursors of the N-acylated caprolactam class include the trialkyl ammonium methylene benzoyl caprolactams and the trialkyl ammonium methylene alkyl caprolactams.

19 Benzoxazin Organic Perolcyacid Precursors Also suitable are precursor compounds of the benzoxazin-type, as disclosed for example in EP-A-332,294 and EP-A-482,807, particularly those having the formula:

0 0 1 L; - K1 wherein R I is H, alkyl, alkaryl, aryl, or arylalkyl.

Preformed Organic Peroxyacid The detergent composition may contain, in addition to, or as an alternative to, an organic peroxyacid bleach precursor compound, a preformed organic peroxyacid, typically at a level of from 1% to 15% by weight, more preferably from 1% to 10% by weight of the composition.

A preferred class of organic peroxyacid compounds are the amide substituted compounds of the following general formulae:

R'-C-N-R2-C-OOH i 1 1 5 11 0 R 0 or R1 -N-C-R2-C-OOH R5 0 0 wherein R I is an alkyl, aryl or alkaryl group with from I to 14 carbon atoms, R2 is an alkylene, arylene, and alkarylene group containing from I to 14 carbon atoms, and R5 is H or an alkyl, aryl, or alkaryl group containing I to 10 carbon atoms. Amide substituted organic peroxyacid compounds of this type are described in EP- A 0170386.

Other organic peroxyacids include diacyl and tetraacylperoxides, especially diperoxydodecanedioc acid, diperoxytetradecanedioc acid and diperoxyhexadecanedioc acid. Mono- and diperazelaic acid, mono- and diperbrassylic acid and N-phthaloylaminoperoxicaproic acid are also suitable herein.

Bleach Catalyst The composition can contain a transition metal containing bleach catalyst.

P 0 One suitable type of bleach catalyst is a catalyst system comprising a transition metal cation of defined bleach catalytic activity, such as copper, iron or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, such as zinc or aluminum cations, and a sequestrant having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra(methylenephosphonic acid) and water-soluble salts thereof Such catalysts are disclosed in U.S. Pat. 4,430,243.

Other types of bleach catalysts include the manganese-based complexes disclosed in lo U.S. Pat. 5,246,621 and U.S. Pat. 5,244,594. Preferred examples of these catalysts include MnIV2(u-0)3(1,4,7-trimethyl-1,4,7-triazacyclononane)2-(PF6)2, N4nl,12(u0)1(u-OAC)2(1,4,7-trimethyl-1,4,7-triazacyclononane)2-(CI04)2, MnIV4(u0)6(1,4,7-triazacyclononane)4-(CI04)2, Mn,"MnlV4(u-O)I(u-OAc)2-(1,4,7trimethyl- 1,4,7-triazacyclononane)2-(CI04)3, and mixtures thereof. Others are described in European patent application publication no. 549,272. Other ligands suitable for use herein include 1,5,9-trimethyl-1,5,9-triazacyclododecane, 2-methyl 1,4,7-triazacyclononane, 2-methyl-1,4,7-triazacyclononane, 1,2,4,7tetramethyl 1,4,7-triazacyclononane, and mixtures thereof The bleach catalysts useful herein may also be selected as appropriate for the present invention. For examples of suitable bleach catalysts see U.S. Pat. 4,246, 612 and U.S.

Pat. 5,227,084. See also U.S. Pat. 5,194,416 which teaches mononuclear manganese (IV) complexes such as Mn(1,4,7-trimethyl-1,4,7-triazacyclononane)(OCH3)3- (PF6).

Still another type of bleach catalyst, as disclosed in U.S. Pat. 5,114, 606, is a water soluble complex of manganese (111), and/or (IV) with a ligand which is a non carboxylate polyhydroxy compound having at least three consecutive C-OH groups.

Preferred ligands, include sorbitol, iditol, dulsitol, mannitol, xylithol, arabitol, adonitol, meso-erythritol, meso-inositol, lactose, and mixtures thereof.

U.S. Pat. 5,114,611 teaches a bleach catalyst comprising a complex of transition metals, including Mn, Co, Fe, or Cu, with an non-(macro)-cyclic ligand. Said ligands are of the formula:

R2 R3 1 1 4 Rl-N=C-B-C=N-R wherein RI, R2, R3, and R4 can each be selected from H, substituted alkyl and aryl groups such that each R I -N=C-R2 and R3 -C=N-R4 form a five or six- membered ring. Said ring can fin-ther be substituted. B is a bridging group selected from 0, S.

CR5R6' NR7 and C=O, wherein R5, R6, and R7 can each be H, alkyl, or aryl groups, 21 including substituted or unsubstituted groups. Preferred ligands include pyridine, pyridazine, pyrimidine, pyrazine, imidazole, pyrazole, and triazole rings. Optionally, said rings may be substituted with substituents such as alkyl, aryl, alkoxy, halide, and nitro. Particularly preferred is the ligand 2,2'-bispyridylamine. Preferred bleach catalysts include Co, Cu, Mn, Fe,-bispyridylmethane and -bispyridylamine complexes. Highly preferred catalysts include Co(2,2'-bispyridylamine)CI2, Di(isothiocyanato)bispyridylamine-cobalt JI), trisdipyridylamine- cobalt(II) perchlorate, Co(2,2-bispyridylamine)202CIO4, Bis-(2,2'- bispyridylarnine) copper(II) perchlorate, tris(di-2-pyridylamine) iron(II) perchlorate, and mixtures thereof Other examples include binuclear Mn complexed with tetra-N-dentate and bi- N- dentate ligands, including N4Mnlll(u-0)2Mn'VN4)+and 1BiPY2MnII1(u- 0)2MnIVbiPY2]-(CI04)3- Other bleach catalysts are described, for example, in European patent application, publication no. 408,131 (cobalt complex catalysts), European patent applications, publication nos. 384,503, and 306,089 (metallo- porphyrin catalysts), U.S. 4,728,455 (manganese/multidentate ligand catalyst), U.S. 4,711,748 and European patent application, publication no. 224,952, (absorbed manganese on aluminosilicate 20 catalyst), U.S. 4,601, 845 (aluminosilicate support with manganese and zinc or magnesium salt), U.S. 4,626,373 (manganese/ligand catalyst), U.S. 4,119,557 (ferric complex catalyst), German Pat. specification 2,054,019 (cobalt chelant catalyst) Canadian 866,191 (transition metal-containing salts), U.S. 4, 430,243 (chelants with manganese cations and non-catalytic metal cations), and U.S. 4,728,455 (manganese 25 gluconate catalysts). The bleach catalyst is typically used in a catalytically effective amount in the compositions and processes herein. By "catalytically effective amount" is meant an amount which is sufficient, under whatever comparative test conditions are 30 employed, to enhance bleaching and removal of the stain or stains of interest from the target substrate. The test conditions will vary, depending on the type of washing appliance used and the habits of the user. Some users elect to use very hot water; others use warm or even cold water in laundering operations. Of course, the catalytic performance of the bleach catalyst will be affected by such considerations, and the 35 levels of bleach catalyst used in fully-formulated detergent and bleach compositions can be appropriately adjusted. As a practical matter, and not by way of limitation, the compositions and processes herein can be adjusted to provide on the order of at least one part per ten million of the active bleach catalyst species in the aqueous washing liquor, and will preferably provide from about I pprn to about 200 ppm of 40 the catalyst species in the wash liquor. To illustrate this point further, on the order of 3 micromolar manganese catalyst is effective at 40'C, pH 10 under European conditions using perborate and a bleach precursor. An increase in concentration of 35 fold may be required under U.S. conditions to achieve the same results.

Additioanl builder material Water-Soluble Builders The compositions or the intimate mixtures herein may preferably contain a water soluble builder compound, typically present in detergent compositions at a level of from I% to 80% by weight, preferably from 10% to 60% by weight, most preferably from 15% to 40% by weight of the composition.

The detergent compositions of the invention may comprise phosphatecontaining builder material, preferably comprises tetrasodium pyrophosphate or even more preferably anhydrous sodium tripolyphosphate, present at a level of from 0.5% to 60%, more preferably from 5% to 50%, more preferably from 8% to 40. It may be preferred that the composiitons are free of phosphate-containing builder material.

Suitable water-soluble builder compounds include the water soluble monomeric polycarboxylates, or their acid forms, homo or copolymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxylic radicals separated from each other by not more that two carbon atoms, borates, and mixtures of any of the foregoing.

The carboxylate or polycarboxylate builder can be mornomeric or oligomeric in type although monomeric polycarboxylates are generally preferred for reasons of cost and performance.

Suitable carboxylates containing one carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic; acid, maleic acid, diglycolic; acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates.

Polycarboxylates or their acids containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No.

1,3 79,241, lactoxysuccinates described in British Patent No. 1,3 89,732, and aminosuccinates described in Netherlands Application 7205873, and the oxypolycarboxylate materials such as 2-oxa- 1, 1,3 -propane tricarboxylates described in British Patent No. 1,387,447. The most preferred polycarboxylic acid containing three carboxy groups is citric acid, preferably present at a level of from 0. 1 % to 15%, more preferably from 0.5% to 8% by weight of the composition.

Polycarboxylates containing four carboxy groups include oxydisuccinates disclosed in British Patent No. 1,261,829, 1,1,2,2-ethane tetracarboxylates, 1, 1,3, 3-propane tetracarboxylates and 1,1,2,3-propane tetracarboxylates. Polycarboxylates containing sulfo substituents include the sulfosuccinate derivatives disclosed in British Patent Nos. 1,398,421 and 1,398,422 and in U.S. Patent No. 3,936,448, and the sulfonated pyrolysed citrates described in British Patent No. 1,439,000. Preferred 23 polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.

The parent acids of the monomeric or oligomeric polycarboxylate chelating agents or mixtures thereof with their salts, e.g. citric acid or citrate/citric acid mixtures are also contemplated as useful builder components.

It may be preferred that the polymeric or oligomeric polycarboxylates are present at levels of less than 5%, preferably less than 3% or even less than 2% or even 0% by weight of the compositions.

Borate builders, as well as builders containing borate-forming materials that can produce borate under detergent storage or wash conditions are useful water-soluble builders herein.

Insoluble Builder Compound The compositions or intimate mixtures herein may contain an insoluble builder compound, but preferably only present at a level of from 0% to 25% by weight, most preferably from 0% to 15% weight of the composition, or even 0% to 10% by weight of the composition.

Examples of largely water insoluble builders include the sodium aluminosilicates.

Suitable aluminosilicate zeolites have the unit cell formula Naz[(AI02)z(SiO2)YI.

xH20 wherein z and y are at least 6; the molar ratio of z to y is from 1. 0 to 0.5 and x is at least 5, preferably from 7.5 to 276, more preferably from 10 to 264. The aluminosilicate material are in hydrated form and are preferably crystalline, containing from 10% to 28%, more preferably from 18% to 22% water in bound form.

The aluminosilicate zeolites can be naturally occurring materials, but are preferably synthetically derived. Synthetic crystalline aluminosilicate ion exchange materials are available under the designations Zeolite A, Zeolite B, Zeolite P, Zeolite X, Zeolite HS and mixtures thereof Zeolite A has the formula:

Na 12 [A102) 12 (Si02)121. xH20 wherein x is from 20 to 30, especially 27. Zeolite X has the formula Na86 I(AI02)86(SiO2)1061. 276 H20 Another preferred aluminosilicate zeolite is zeolite MAP builder. Zeolite MAP is described in EP 384070A (Unilever). It is defined as an alkali metal alumino-silicate of the zeolite P type having a silicon to aluminium ratio not greater than 1.33, preferably within the range from 0.9 to 1.33 and more preferably within the range of from 0.9 to 1.2.

Of particular interest is zeolite MAP having a silicon to aluminiurn ratio not greater than 1. 15 and, more particularly, not greater than 1. 07.

In a preferred aspect the zeolite MAP detergent builder has a particle size, expressed as a d50 value of from 1.0 to 10.0 micrometres, more preferably from 2.0 to 7.0 micrometres, most preferably from 2.5 to 5.0 micrometres.

The d50 value indicates that 50% by weight of the particles have a diameter smaller than that figure. The particle size may, in particular be determined by conventional analytical techniques such as microscopic determination using a scanning electron microscope or by means of a laser granulometer. Other methods of establishing d50 values are disclosed in EP 384070A.

HeM metal ion sequestrant Heavy metal ion sequestrant are also useful additional ingredients herein. By heavy metal ion sequestrant it is meant herein components which act to sequester (chelate) heavy metal ions. These components may also have calcium and magnesium chelation capacity, but preferentially they show selectivity to binding heavy metal ions such as iron, manganese and copper.

Heavy metal ion sequestrants are generally present at a level of from 0. 005% to 10%, preferably from 0. 1% to 5%, more preferably from 0.25% to 7.5% and most preferably from 0.3% to 2% by weight of the compositions.

Suitable heavy metal ion sequestrants for use herein include organic phosphonates, such as the amino alkylene poly (alkylene phosphonates), alkali metal ethane I - hydroxy disphosphonates and nitrilo trimethylene phosphonates.

Preferred among the above species are diethylene triamine penta (methylene phosphonate), ethylene diamine tri (methylene phosphonate) hexamethylene diamine tetra (methylene phosphonate) and hydroxy-ethylene 1,1 diphosphonate, Ij hydroxyethane diphosphonic acid and Ij hydroxyethane dimethylene phosphonic acid.

Other suitable heavy metal ion sequestrant for use herein include nitrilotriacetic acid and polyarninocarboxylic acids such as ethylenediaminotetracetic acid, ethylenediamine disuccinic acid, ethylenediamine diglutaric acid, 2 hydroxypropylenediamine disuccinic acid or any salts thereof.

Other suitable heavy metal ion sequestrants; for use herein are iminodiacetic acid derivatives such as 2-hydroxyethyl diacetic acid or glyceryl imino diacetic acid, described in EP-A-317,542 and EP-A-399,133. The iminodiacetic acid-N-2- hydroxypropyl sulfonic acid and aspartic acid N-carboxymethyl N-2- hydroxypropyl 3-sulfonic acid sequestrants described in EP-A-516,102 are also suitable herein. The P-alanine-N,N'-diacetic acid, aspartic acid-N,N'-diacetic acid, aspartic acid-N monoacetic acid and iminodisuccinic acid sequestrants described in EP-A- 509,382 are also suitable.

EP-A-476,257 describes suitable amino based sequestrants. EP-A-510,331 describes suitable sequestrants derived from collagen, keratin or casein. EP-A 528,859 describes a suitable alkyl iminodiacetic acid sequestrant. Dipicolinic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid are alos suitable.

Glycinamide-N,N'-disuccinic acid (GADS), ethylenediamine-N-N'-diglutaric acid (EDDG) and 2-hydroxypropylenediamine-N-N'-disuccinic acid (HPDDS) are also suitable.

Especially preferred are diethylenetriamine pentacetic acid, ethylenediamine N,N'-disuccinic acid (EDDS) and 1, 1 hydroxyethane diphosphonic acid or the alkali metal, alkaline earth metal, ammonium, or substituted ammonium salts thereof, or mixtures thereof Enzyme Another preferred ingredient useful herein is one or more additional enzymes.

Preferred additional enzymatic materials include the commercially available lipases, cutinases, amylases, neutral and alkaline proteases, cellulases, endolases, esterases, pectinases, lactases and peroxidases conventionally incorporated into detergent compositions. Suitable enzymes are discussed in US Patents 3,519,570 and 3,533,139.

Preferred commercially available protease enzymes include those sold under the tradenames Alcalase, Savinase, Primase, Durazym., and Esperase by Novo Industries A/S (Denmark), those sold under the tradename Maxatase, Maxacal and Maxapem by Gist-Brocades, those sold by Genencor International, and those sold under the tradename Opticlean and Optimase by Solvay Enzymes. Protease enzyme may be incorporated into the compositions in accordance with the invention at a level of from 0.0001% to 4% active enzyme by weight of the composition.

Preferred amylases include, for example, cc-amylases obtained from a special strain of B licheniformis, described in more detail in GB-1,269, 839 (Novo). Preferred commercially available amylases include forexample, those sold under the tradename Rapidase by Gist-Brocades, and those sold under the tradename Termamyl, Duramyl and BAN by Novo Industries A/S. Highly preferred amylase enzymes maybe those described in PCT/ US 9703635, and in W095/26397 and W096/23873.

2(p Amylase enzyme may be incorporated into the composition in accordance with the invention at a level of ftom 0.000 1% to 2% active enzyme by weight of the composition.

Lipolytic enzyme may be present at levels of active lipolytic enzyme of from 0. 000 1 % to 2% by weight, preferably 0. 00 1 % to I % by weight, most preferably from 0.001% to 0.5% by weight of the compositions. The lipase may be fungal or bacterial in origin being obtained, for example, ftom a 10 lipase producing strain of Humicola sp., Thermomyces sp. or Pseudomonas sp. including Pseudomonas pseudoalcaligenes or Pseudomas fluorescens. Lipase from chemically or genetically modified mutants of these strains are also useful herein. A preferred lipase is derived ftom PseudomonaS Dseudoalcaligenes, which is described in Granted European Patent, EP-B-0218272. 15 Another preferred lipase herein is obtained by cloning the gene from Humicola lanuginos and expressing the gene in Aspergillus ory, as host, as described in European Patent Application, EPA-0258 068, which is commercially available from Novo Industri A/S, Bagsvaerd, Denmark, under the trade name Lipolase. This lipase 20 is also described in U.S. Patent 4,810,414, Huge-Jensen et al, issued March 7, 1989. Organic Polymeric Compound Organic polymeric compounds are preferred additional components of the compositions herein or the intimate mixtures herein, where they may act such as to 25 bind the intimate mixture components together. By organic polymeric compound it is meant herein essentially any polymeric organic compound commonly used as binder, dispersants, and anti-redeposition and soil suspension agents in detergent compositions, including any of the high molecular weight organic polymeric compounds described as clay flocculating agents herein, including quaternised ethoxylated (poly) amine clay-soil removal/ anti- redeposition agent in accord with the invention. Organic polymeric compound is typically incorporated in the detergent compositions 35 of the invention at a level of from 0.01% to 30%, preferably from 0.1% to 15%, most preferably ftom 0.5% to 10% by weight of the compositions. Examples of organic polymeric compounds include the water soluble organic homoor co-polymeric polycarboxylic acids or their salts in which the polycarboxylic acid 40 comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of the latter type are disclosed in GB-A-1,596,756. Examples of such salts are polyacrylates of MWt 1000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 2000 to 100,000, especially 40,000 to 80,000. 45 27 The polyamino compounds are useful herein including those derived from aspartic acid such as those disclosed in EP-A-305282, EP-A-305283 and EP- A-351629.

Terpolymers containing monomer units selected from maleic acid, acrylic acid, polyaspartic acid and vinyl alcohol, particularly those having an average molecular weight of from 5,000 to 10,000, are also suitable herein.

Other organic polymeric compounds suitable for incorporation in the detergent compositions herein include cellulose derivatives such as methylcellulose, carboxymethy1cellulose, hydroxypropylmethylcellulose and hydroxyethylcellulose.

Further useful organic polymeric compounds are the polyethylene glycols, particularly those of molecular weight 1000- 10000, more particularly 2000 to 8000 and most preferably about 4000.

Highly preferred polymeric components herein are cotton and non-cotton soil release polymer according to U.S. Patent 4,96 8,45 1, Scheibel et al. , and U.S. Patent 5,415,807, Gosselink et al., and in particular according to US application no.60/051517.

Another organic compound, which is a preferred clay dispersant/ antiredeposition agent, for use herein, can be the ethoxylated cationic monoamines and diamines of the formula:

CH3 CH3 I I + X-(-OCH2CH2)n- -CH2-CH2-CCH2)a--N -CH2CH2O-)-n-X' - I -b 1 (CH2CH2O_)_nX (CH2CH20-)n-X wherein X is a nonionic group selected from the group consisting of H, C I -C4 alkyl or hydroxyalkyl ester or ether groups, and mixtures thereof, a is from 0 to 20, preferably from 0 to 4 (e.g. ethylene, propylene, hexamethylene) b is I or 0; for cationic monoamines (b--O), n is at least 16, with a typical range of from 20 to 35; for cationic diamines (b=1), n is at least about 12 with a typical range of from about 12 to about 42.

Other dispersants/ anti-redeposition agents for use herein are described in EP-B 011965 and US 4,659,802 and US 4,664,848.

Suds Suppressing System The detergent compositions of the invention, when formulated for use in machine 40 washing compositions, may comprise a suds suppressing system present at a level of gL 19 from 0.01% to 15%, preferably from 0.02% to 10%, most preferably from 0. 05% to 3% by weight of the composition.

Suitable suds suppressing systems for use herein may comprise essentially any known antifoam compound, including, for example silicone antifoarn compounds and 2-alkyl alcanol antifoam compounds.

By antifoam compound it is meant herein any compound or mixtures of compounds which act such as to depress the foaming or sudsing produced by a solution of a detergent composition, particularly in the presence of agitation of that solution.

Particularly preferred antifoarn compounds for use herein are silicone antifoam compounds defined herein as any antifoam compound including a silicone component. Such silicone antifoam compounds also typically contain a silica component. The term "silicone" as used herein, and in general throughout the industry, encompasses a variety of relatively high molecular weight polymers containing siloxane units and hydrocarbyl group of various types. Preferred silicone antifoam compounds are the siloxanes, particularly the polydimethylsiloxanes having trimethylsilyl end blocking units.

Other suitable antifoarn compounds include the monocarboxylic fatty acids and soluble salts thereof. These materials are described in US Patent 2, 954,347, issued September 27, 1960 to Wayne St. John. The monocarboxylic fatty acids, and salts thereof, for use as suds suppressor typically have hydrocarbyl chains of 10 to 24 carbon atoms, preferably 12 to 18 carbon atoms. Suitable salts include the alkali metal salts such as sodium, potassium, and lithium salts, and ammonium and alkanolammonium. salts.

Other suitable antifoam compounds include, for example, high molecular weight fatty esters (e.g. fatty acid triglycerides), fatty acid esters of monovalent alcohols, aliphatic C I 8-C40 ketones (e.g. stearone) Nalkylated amino triazines such as tri- to hexa-alkylmelamines or di- to tetra alkyldiamine chlortriazines formed as products of cyanuric chloride with two or three moles of a primary or secondary amine containing I to 24 carbon atoms, propylene oxide, bis stearic acid amide and monostearyl di-alkali metal (e.g. sodium, potassium, lithium) phosphates and phosphate esters.

A preferred suds suppressing system comprises:

(a) antifoarn compound, preferably silicone antifoam compound, most preferably a silicone antifoam compound comprising in combination (i) polydimethyl siloxane, at a level of from 50% to 99%, preferably 75% to 95% by weight of the silicone antifoam compound; and 29 (ii) silica, at a level of from 1% to 50%, preferably 5% to 25% by weight of the silicone/silica antifoam compound; wherein said silica/silicone antifoam compound is incorporated at a level of from 5% to 50%, preferably 10% to 40% by weight; (b) a dispersant compound, most preferably comprising a silicone glycol rake copolymer with a polyoxyalkylene content of 72-78% and an ethylene oxide to propylene oxide ratio of from 1:0.9 to 1: 1. 1, at a level of from 0. 5% to 10%, preferably I % to 10% by weight; a particularly preferred silicone glycol rake copolymer of this type is DC0544, commercially available from DOW Coming under the tradename DC0544; (c) an inert carrier fluid compound, most preferably comprising a C I 6-C 18 ethoxylated alcohol with a degree of ethoxylation of from 5 to 50, preferably 8 to 15, at a level of from 5% to 80%, preferably 10% to 70%, by weight; A highly preferred particulate suds suppressing system is described in EP- A-0210731 and comprises a silicone antifoam compound and an organic carrier material having a melting point in the range 50'C to 85'C, wherein the organic carrier material comprises a monoester of glycerol and a fatty acid having a carbon chain containing from 12 to 20 carbon atoms. EP-A- 0210721 discloses other preferred particulate suds suppressing systems wherein the organic carrier material is a fatty acid or alcohol having a carbon chain containing from 12 to 20 carbon atoms, or a mixture thereof, with a melting point of from 45'C to 80'C.

Other highly preferred suds suppressing systems comprise polydimethylsiloxane or mixtures of silicone, such as polydimethylsiloxane, aluminosilicate and polycarboxylic polymers, such as copolymers of laic and acrylic acid.

Polymeric Dye Transfer Inhibiting Agents The compositions herein may also comprise from 0. 0 1 % to 10 %, preferably from 0.05% to 0.5% by weight of polymeric dye transfer inhibiting agents.

The polymeric dye transfer inhibiting agents are preferably selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and Nvinylimidazole, polyvinylpyrrolidonepolyrners or combinations thereof, whereby these polymers can be cross-linked polymers.

Optical Brightene The compositions herein also optionally contain from about 0.005% to 5% by weight of certain types of hydrophilic optical brighteners.

Hydrophilic optical brighteners useful herein include those having the structural formula:

RI R2 N H H N I _4_1x N O-N _1Q_C=C-O-X--O N S03M S03M RI wherein RI is selected from anilino, N-2-bis-hydroxyethyl and NH-2- hydroxyethyl; R2 is selected from N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphilino, chloro and amino; and M is a salt-forming cation such as sodium or potassium.

When in the above formula, RI is anilino, R2 is N-2-bis-hydroxyethyl and M is a cation such as sodium, the brightener is 4,4',-bis[(4-anilino-6-(N-2-bishydroxyethyl)-s-triazine-2-yl)amino]-2,2'-stilbenedisulfonic acid and disodium salt.

This particular brightener species is commercially marketed under the tradename Tinopal-LTNPA-GX by Ciba-Geigy Corporation. Tinopal-CBS-X and Tinopal UNPA-GX is the preferred hydrophilic optical brightener useful in the detergent compositions herein.

When in the above formula, RI is anilino, R2 is N-2-hydroxyethyl-N-2methylamino and M is a cation such as sodium, the brightener is 4,4'-bis[(4-ani1ino-6- (N-2 hydroxyethyl-N-methylamino)-s-triazine-2-yl)amino]2,2'-stilbenedisulfonic acid disodiurn salt. This particular brightener species is commercially marketed under the tradename Tinopal 5BM-GX by Ciba-Geigy Corporation.

When in the above formula, RI is anilino, R2 is morphilino and M is a cation such as sodium, the brightener is 4,4'-bis[(4-anilino-6-morphilino-s-triazine-2- yl)amino]2,2'stilbenedisulfonic acid, sodium salt. This particular brightener species are commercially marketed under the tradename Tinopal-DMS-X and Tinopal AMS- GX by Ciba Geigy Corporation.

Polymeric Soil Release Agent Polymeric soil release agents, hereinafter "SRA", can optionally be employed in the present compositions. If utilized, SRA's will generally comprise from 0. 01% to 10.0%, typically from 0.1% to 5%, preferably from 0.2% to 3.0% by weight, of the compositions.

31 Preferred SRA's typically have hydrophilic segments to hydrophilize the surface of hydrophobic fibers such as polyester and nylon, and hydrophobic segments to deposit upon hydrophobic fibers and remain adhered thereto through completion of washing and rinsing cycles, thereby serving as an anchor for the hydrophilic segments. This can enable stains occurring subsequent to treatment with the SRA to be more easily cleaned in later washing procedures.

Preferred SRA's include oligomeric terephthalate esters, typically prepared by processes involving at least one transesterification/oligomerization, often with a metal catalyst such as a titanium(IV) alkoxide. Such esters may be made using additional monomers capable of being incorporated into the ester structure through one, two, three, four or more positions, without, of course, forming a densely crosslinked overall structure.

Suitable SRA's include a sulfonated product of a substantially linear ester oligomer comprised of an oligomeric ester backbone of terephthaloyl and oxyalkyleneoxy repeat units and allyl-derived sulfonated terminal moieties covalently attached to the backbone, for example as described in U.S. 4,968,451, November 6, 1990 to J.J.

Scheibel and E.P. Gosselink. Such ester oligomers can be prepared by: (a) ethoxylating allyl alcohol; (b) reacting the product of (a) with dimethyl terephthalate ("DW") and 1,2-propylene glycol ("PG") in a two-stage transesterification/oligomerization procedure; and (c) reacting the product of (b) with sodium metabisulfite in water. Other SRA's include the nonionic end- capped 1,2 propylene/polyoxyethylene terephthalate polyesters of U.S. 4,711,730, December 8, 1987 to Gosselink et al., for example those produced by transesterification/oligomerization of poly(ethyleneglycol) methyl ether, DMT, PG and poly(ethyleneglycol) ("PEG"). Other examples of SRA's include: the partly- and fullyanionic-end-capped oligomeric esters of U.S. 4,721,580, January 26, 1988 to Gosselink, such as oligomers from ethylene glycol ("EG"), PG, DMT and Na- 3,6 dioxa-8-hydroxyoctanesulfonate; the nonionic-capped block polyester oligomeric compounds of U.S. 4,702,857, October 27, 1987 to Gosselink, for example produced from DMT, methyl (Me)-capped PEG and EG and/or PG, or a combination of DMT, EG and/or PG, Me-capped PEG and Na-dimethyl-5-sulfoisophthalate; and the anionic, especially sulfbaroyl, end-capped terephthalate esters of U.S. 4, 877,896, October 31, 1989 to Maldonado, Gosselink et al., the latter being typical of SRA's useful in both laundry and fabric conditioning products, an example being an ester composition made from m-sulfobenzoic acid monosodium salt, PG and DMT, optionally but preferably further comprising added PEG, e.g., PEG 3400.

SRA's also include: simple copolymeric blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate, see U.S. 3,959,230 to Hays, May 25, 1976 and U.S. 3,893, 929 to Basadur, July 8, 1975; cellulosic derivatives such as the hydroxyether cellulosic polymers available as METHOCEL from Dow; the CI-C4 alkyl celluloses and C4 hydroxyalkyl celluloses, see U.S. 4,000,093, December 28, 1976 to Nicol, et al.; and -; L the methyl cellulose ethers having an average degree of substitution (methyl) per anhydroglucose unit from about 1.6 to about 2.3 and a solution viscosity of from about 80 to about 120 centipoise measured at 20'C as a 2% aqueous solution. Such materials are available as METOLOSE SM100 and NMTOLOSE SM200, which are 5 the trade names of methyl cellulose ethers manufactured by Shin-etsu Kagaku Kogyo KK, Additional classes of SRA's include: (1) nonionic terephthalates using diisocyanate coupling agents to link polymeric ester structures, see U.S. 4,201,824, Violland et al.

and U.S. 4,240,918 Lagasse et al.; and (11) SRA's with carboxylate terminal groups made by adding trimellitic anhydride to known SRA's to convert terminal hydroxyl groups to trimellitate esters. With the proper selection of catalyst, the trimellitic anhydride forms linkages to the terminals of the polymer through an ester of the isolated carboxylic acid of trimellitic anhydride rather than by opening of the anhydride linkage. Either nonionic or anionic SRA's may be used as starting materials as long as they have hydroxyl terminal groups which may be esterified. See U.S. 4,525,524 Tung et al.. Other classes include: (III) anionic terephthalatebased SRA's of the urethane-linked variety, see U.S. 4,201,824, Violland et al.; Other Optional Ingredients Other optional ingredients suitable for inclusion in the compositions of the invention include perfames, speckles, colours or dyes, filler salts, with sodium sulfate being a preferred filler salt.

Also, minor amounts (e.g., less than about 20% by weight) of neutralizing agents, buffering agents, phase regulants, hydrotropes, enzyme stabilizing agents, polyacids, suds regulants, opacifiers, anti-oxidants, bactericides and dyes, such as those described in US Patent 4,285,841 to Barrat et al., issued August 25, 1981 (herein incorporated by reference), can be present.

Form of the Compositions The composition of the invention can be made via a variety of methods, including dry-mixing, agglomerating, compaction, or spray-drying of the various compounds comprised in the detergent component, or mixtures of these techniques.

The compositions herein can take a variety of physical forms including liquid, but preferably solid forms such as tablet, flake, pastille and bar, and preferably granular or tablet forms.

The compositions in accord with the present invention can also be used in or in combination with bleach additive compositions, for example comprising chlorine bleach.

Detergent compositions herein, in particular laundry detergents, preferably have a bulk density of from 280 g/litre to 200 g/litre, or preferably from 300 g/litre or even 33 350g/litre or 420g/litre to 20OOg/litre or more preferably to 15OOg/litre or 100 g/litre or even to 700g/litre.

Laundry Washing Method Machine laundry methods herein typically comprise treating soiled laundry with an aqueous wash solution in a washing machine having dissolved or dispensed therein an effective amount of a machine laundry detergent composition in accord with the invention. By an effective amount of the detergent composition it is meant from I Og to 300g of product dissolved or dispersed in a wash solution of volume from 5 to 65 litres, as are typical product dosages and wash solution volumes commonly employed in conventional machine laundry methods.

The composition may also be formulated such that it is suitable for hardsurface cleaning or hand washing or for pre-treatment or soaking of soiled and stained fabrics.

Abbreviations used in Examples In the detergent compositions, the abbreviated component identifications have the following meanings:

LAS Sodium linear C I 1- 13 alkyl benzene sulfonate MES a-sulpho methylester of C,, fatty acid TAS Sodium tallow alkyl sulfate 25 CxyAS Sodium Clx - Cly alkyl sulfate C46SAS Sodium C14 - C16 secondary (2,3) alkyl sulfate CxyEzS Sodium C 1 X-C I y alkyl sulfate condensed with z moles of ethylene oxide CxyEz C I X-C I y predominantly linear primary alcohol condensed with an average of z moles of ethylene oxide QAS R2.N+(CH3)2(C2H40H) with R2 = C 12 - C 14 QAS I R2.N+(CH3)2(C2H40H) with R2 = C8 - C 11 SADS SodiumC,4-C22alkyl disulfate of formula 2-(R)'C4 H7.-1,4-(SO4-)2where R = CIO__Cjg SADE2S SodiumCWC22alkyl disulfate of formula 2-(R).C, H7'-1,4-(SO4-)2where R = CIO-Cls, condensed with z moles of ethylene oxide APA C8 - Clo amido propyl dimethyl amine Soap Sodium linear alkyl carboxylate derived from an 80/20 mixture of tallow and coconut fatty acids STS Sodium toluene sulphonate CFAA C12-C14 (coco) alkyl N-methyl glucamide TFAA C I 6-C 18 alkyl N-methyl glucamide TPKFA C I 6-C 18 topped whole cut fatty acids STPP Anhydrous sodium tripolyphosphate TSPP Tetrasodium pyrophosphate Zeolite A Hydrated sodium aluminosilicate of formula Nal 2(A 1 02SiO2)12.27H20 having a primary particle size in the range from 0. 1 to 10 micrometers (weight expressed on an anhydrous basis) NaSKS-6 (1) Crystalline layered silicate of formula 8- Na2Si2O5 NaSKS-6 (11) Crystalline layered silicate of formula 8Na2Si205 of weight average particle size of 18 microns and at least 90% by weight of particle size of below 65.6 microns Citric acid Anhydrous citric acid 15 Borate Sodium borate Carbonate Anydrous sodium carbonate with a particle size between 200pm and 900gm Bicarbonate Anhydrous sodium bicarbonate with a particle size distribution between 400[tm and 1200grn 20 Silicate Amorphous sodium silicate (Si02:Na2O = 2.0: 1) Sulfate Anhydrous sodium sulfate Mg sulfate Anhydrous magnesium sulfate Citrate Tri-sodium citrate dihydrate of activity 86.4% with a particle size distribution between 425gm and 850gm 25 MA/AA Copolymer of 1:4 maleic/acrylic acid, average molecular weight about 70,000 MA/AA (1) Copolymer of 4:6 maleic/acrylic acid, average molecular weight about 10,000 AA Sodium polyacrylate polymer of average molecular 30 weight 4,500 CMC Sodium carboxymethyl cellulose Cellulose ether Methyl cellulose ether with a degree of polymerization of 650 available from Shin Etsu Chemicals 35 Protease Proteolytic enzyme, having 3.3% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Savinase Protease I Proteolytic enzyme, having 4% by weight of active enzyme, as described in WO 95/10591, sold by 40 Genencor Int. Inc. Alcalase Proteolytic enzyme, having 5.3% by weight of active enzyme, sold by NOVO Industries A/S Cellulase Cellulytic enzyme, having 0.23% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Carezyme Amylase Amylolytic enzyme, having 1.6% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Termamyl 120T Amylase II Amylolytic enzyme, as disclosed in PCT/ US9703635 Lipase Lipolytic enzyme, having 2.0% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Lipolase Lipase (1) Lipolytic enzyme, having 2.0% by weight of active enzyme, sold by NOVO Industries A/S under the tradename Lipolase Ultra Endolase Endoglucanase enzyme, having 1.5% by weight of active enzyme, sold by NOVO Industries A/S PB4 Sodium perborate tetrahydrate of nominal formula NaB02.31120.1-1202 PBl Anhydrous sodium perborate bleach of nominal formula NaB02.1-1202 Percarbonate Sodium percarbonate of nominal formula 2Na2CO3.3H2O2 DOBS Decanoyl oxybenzene sulfonate in the form of the sodium salt DPDA Diperoxydodecanedioc acid NOBS Nonanoyloxybenzene sulfonate in the form of the sodium salt NACA-OBS (6-nonamidocaproyl) oxybenzene sulfonate LOBS Dodecanoyloxybenzene sulfonate in the form of the sodium salt DOBS Decanoyloxybenzene sulfonate in the form of the sodium salt DOBA Decanoyl oxybenzoic acid TAED Tetraacetylethylenediamine DT?A Diethylene triamine pentaacetic acid DTPMP Diethylene triamine penta (methylene phosphonate), marketed by Monsanto under the Tradename Dequest 2060 EDDS Ethylenediamine-NN'-disuccinic acid, (S,S) isomer in the form of its sodium salt.

Photoactivated Sulfonated zinc phthlocyanine encapsulated in bleach (1) dextrin soluble polymer Photoactivated Sulfonated alumino phthlocyanine encapsulated in bleach (2) dextrin soluble polymer Brightener I Disodium 4,4'-bis(2-sulphostyryl)biphenyI -7 L7 Brightener 2 Disodium 4,4'-bis(4-anilino-6-morpholino-1.3.5- triazin-2-yl)axnino) stilbene-2:2'-disulfonate HEDP 1,1-hydroxyethane diphosphonic acid PEGx Polyethylene glycol, with a molecular weight of x (typically 4,000) PEO Polyethylene oxide, with an average molecular weight of 50,000 TEPAE Tetraethylenepentaamine ethoxylate PVI Polyvinyl irmidosole, with an average molecular weight of 20,000 PVP Polyvinylpyrolidone polymer, with an average molecular weight of 60,000 PVNO Polyvinylpyridine N-oxide polymer, with an average molecular weight of 50,000 PVPVI Copolymer of polyvinylpyrolidone and vinylimidazole, with an average molecular weight of 20,000 QEA bis((C2H50)(C2H40)n)(CH3) -N±C6Hl2-N+ (CH3) bis((C2H50)-(C2H40))n, wherein n = from 20 to 30 SRP 1 Anionically end capped poly esters SRP 2 Diethoxylated poly (1, 2 propylene terephtalate) short block polymer PEI Polyethyleneimine with an average molecular weight of 1800 and an average ethoxylation degree of 7 ethyleneoxy residues per nitrogen Silicone antifoam Polydimethylsiloxane foam controller with siloxane oxyalkylene copolymer as dispersing agent with a ratio of said foam controller to said dispersing agent of 10:1 to 100:1 Opacifier Water based monostyrene latex mixture, sold by BASF Aktiengesellschaft under the tradename Lytron 621 Wax Paraffin wax Example 1

The following are detergent formulations according to the invention:

A B C D Base Powder STPP 10.0 37 Zeolite A 16.0 16.0 C45AS 4.0 - 4.0 5.0 QAS I - 1.0 - - MBAS 17, 2.1 2.0 4.0 - C25 AE3S - 1.0 - 1.0 MA/AA 2.0 1.0 2.0 1.0 LAS 4.0 2.0 3.0 1.6 TAS - 4.0 - - Silicate - 3.0 - 3.0 CmC 1.0 1.0 0.5 1.0 Brightener 2 0.2 0.2 - - Soap 1.0 - - 1.0 DTPMP 0.4 0.4 0.2 0.4 Spray On C45E7 - 2.5 - - C25E3 2.5 - - - Silicone antifoam 0.3 0.3 0.3 0.3 Perfume 0.3 0.3 0.3 0.3 Agglomerate NaSKS-6 (11) 9.0 16.0 10.0 6.8 LAS 6.0 9.0 5.9 5.0 Dry additives QEA - 0.5 1.0 - Carbonate 6.0 13.0 15.0 13.0 PB4 18.0 18.0 10.0 - PB 1 4.0 4.0 - NOBS 3.0 4.2 1.0 - Photoactivated bleach 0.02 0.02 0.02 0.02 Manganese catalyst - - 0.5 - Protease 1.0 1.0 1.0 1.0 Lipase 0.4 0.4 0.4 0.4 Amylase 0.25 0.30 0.15 0.3 Dry mixed sodium sulfate 3.0 3.0 5.0 3.0 Balance (Moisture & 100.0 100.0 100.0 100.0 Miscellaneous) Density (g/litre) 630 670 670 670 Example 2

The following formulations are examples of compositions in accordance with the invention, which may be in the form of granules or in the form of a tablet.

I I E I F I G I - H I I Base Product C45 AS/TAS 8.0 5.0 3.0 3.0 3.0 LAS 8.0 - 8.0 - 7.0 C25AE3S 0.5 2.0 1.0 - - LASNaSKS-6 Agglomerate 5.0 17.0 9.0 20.0 15.0 with ratio 3:2 C25AE5/AE3 2.0 - 5.0 2.0 2.0 QAS - - - 1.0 1.0 Zeolite A 20.0 10.0 10.0 - 10.0 NaSKS-6 (1) (dry add) - - 2.0 - MA/AA 2.0 2.0 2.0 - - AA - - - 4.0 Citrate - 2.0 - - - Citric acid 2.0 1.5 2.0 DTPA 0.2 0.2 - - EDDS - - 0.5 0.1 HEDP - - 0.2 0.1 - PB1 3.0 5.0 10.0 - 4.0 PC - - - 18.0 - NOBS 3.0 4.0 - - 4.0 NACA OBS - - 2.0 - - TAED - - 2.0 5.0 - Carbonate 15.0 18.0 8.0 15.0 15.0 Sulphate 5.0 12.0 2.0 17.0 3.0 Silicate - 1.0 - - 8.0 Enzyme 0.3 0.3 1.0 1.0 0.2 Minors (Brightener/SRP 1 / 0.5 0.5 0.5 0.5 0.5 CMCiPhotobleach/ MgS04/ PVPVI/Suds suppressor/ PEG) Perfume 0.2 0.3 0.2 0.1 i i 39

Claims (10)

Claims

1. A method for improving the dispensing of a detergent composition or component thereof, comprising a surfactant and other detergent components, by providing a detergent composition comprising an intimate mixture of the surfactant component or part thereof and a crystalline layered silicate.

2. A method according to claim I whereby the surfactant or part thereof comprises an anionic surfactant, preferably a sulphonate surfactant, and the crystalline layered silicate comprises crystalline layered silicate of the formula Na2S'20,'

3. A method according to claim I or 2 whereby the intimate mixture is an agglomerate, comprises the surfactant component or part thereof agglomerated with the crystalline layered silicate.

4. A method according to any preceding claim, whereby the agglomerate comprises the crystalline layered silicate at a level of from 80% to 40%, or even from 70% to 50% by weight of the intimate mixture and the surfactant at a level of from 20% to 55%, or even 30% to 45% by weight of the intimate mixture.

5. A method according to any preceding claim wherein the intimate mixture has a free moisture level of less than 10% or even less than 3% by weight of the intimate mixture.

6. A method according to any preceding claims wherein the intimate mixture comprises less than 15%, preferably less than 10% by weight of the intimate mixture of an aluminosilicate.

7. A method according to any preceding claim wherein the intimate mixture comprises less than 15% by weight, preferably less than 5% by weight of the intimate mixture of nonionic surfactant.

8. A method according to any preceding claim wherein the intimate mixture comprises less than 25%, preferably less than 10% by weight of ethylene oxide polymers.

9. A method according to any preceding claim wherein the detergent composition is a solid composition having a bulk density of at least 500gilitre.

10. Use of the intimate mixture obtainable by intimately mixing a surfactant and a crystallise layered silicate in a detergent composition, comprising a surfactant'and other detergent components, for improving the dispensing of the detergent component.