EP3301158A1 - Composition de détergent pour lessive - Google Patents

Composition de détergent pour lessive Download PDF

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Publication number
EP3301158A1
EP3301158A1 EP17194533.0A EP17194533A EP3301158A1 EP 3301158 A1 EP3301158 A1 EP 3301158A1 EP 17194533 A EP17194533 A EP 17194533A EP 3301158 A1 EP3301158 A1 EP 3301158A1
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EP
European Patent Office
Prior art keywords
composition
group
alkyl
identity
composition according
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EP17194533.0A
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German (de)
English (en)
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EP3301158B1 (fr
Inventor
Andre Chieffi
Alan Thomas Brooker
Craig Adam Wilkinson
Linsey Sarah Fuller
Paul Anthony Gould
Hossam Hassan Tantawy
Carly Pickering
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Procter and Gamble Co
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Procter and Gamble Co
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3723—Polyamines or polyalkyleneimines

Definitions

  • the present invention relates to a solid free flowing particulate laundry detergent composition having a low pH profile.
  • the compositions of the present invention provide good solubility profile, good cleaning profile, good stability profile and good fabric care profile.
  • Laundry detergent powder manufacturers seek to provide solid free-flowing particulate laundry detergent compositions that have good solubility profile, good cleaning profile, good stability profile and good fabric care profile. Typically, a performance balance is required between the chosen formulation to ensure that these profile requirements are met.
  • the pH profile of a typical laundry detergent powder is quite high, around pH 10.5 and sometimes even higher. This pH profile ensures the good performance of historic cleaning mechanisms: such as grease saponification mechanisms and/or fabric fibre swelling mechanisms. However, this high pH profile also means that the detergent formulators are having to address problems with improving the fabric care profile, and ensuring fabric appearance performance and/or fabric shape retention performance is still adequate.
  • This low pH laundry detergent powder formulation approach ensures good fabric appearance and good fabric care profiles, but careful attention is needed to ensure good cleaning performance, and especially to address any undesirable cleaning performance skews that result due to the low pH profile.
  • the inventors have found that the cleaning performance of low pH laundry detergent powders can be improved by careful formulation of specific technologies, formulation features and particle architecture as defined by the present invention.
  • the inventors have found that a good cleaning performance is achieved by the combination of a low pH solid laundry detergent powder when formulated using a specific base detergent particle, formulation features and a specific polymer.
  • WO00/18856 relates to detergent compositions. However, the compositions disclosed by WO00/18856 differ from the composition required by the present invention. In particular, example composition E of WO00/18856 has a calculated pH of 9.7. This is higher (more alkaline) than the pH profile required by the present invention. Data in the application shows the benefit of combining the reduced pH profile with the specific technology and other formulation features required by the present invention (c.f. invention example 5 compared to comparative example 7).
  • WO03/038028 relates to detergent compositions. However, the compositions disclosed by WO03/038028 differ from the compositions required by the present invention.
  • example E of WO03/18856 comprises high levels of carbonate in excess of the levels required by the present invention. Data in the application shows the benefit of formulating at lower sodium carbonate levels when formulated in combination with the specific technology and other formulation features required by the present invention (c.f. invention example 5 compared to comparative example 6).
  • the present invention relates to a solid free flowing particulate laundry detergent composition
  • a solid free flowing particulate laundry detergent composition comprising:
  • the solid free flowing particulate laundry detergent composition comprises:
  • Solid free-flowing particulate laundry detergent composition is a fully formulated laundry detergent composition, not a portion thereof such as a spray-dried, extruded or agglomerate particle that only forms part of the laundry detergent composition.
  • the solid composition comprises a plurality of chemically different particles, such as spray-dried base detergent particles and/or agglomerated base detergent particles and/or extruded base detergent particles, in combination with one or more, typically two or more, or five or more, or even ten or more particles selected from: surfactant particles, including surfactant agglomerates, surfactant extrudates, surfactant needles, surfactant noodles, surfactant flakes; phosphate particles; zeolite particles; polymer particles such as carboxylate polymer particles, cellulosic polymer particles, starch particles, polyester particles, polyamine particles, terephthalate polymer particles, polyethylene glycol particles; aesthetic particles such as coloured noodles, needles, lamellae particles and ring particles; enzyme particles such as protease granulates, amylase granulates, lipase granulates, cellulase granulates, mannanase granulates, pectate lyase gran
  • the solid free flowing particulate laundry detergent composition comprises:
  • the composition at 1wt% dilution in deionized water at 20°C has an equilibrium pH in the range of from 6.5 to 9.0, preferably from 6.5 to 8.5, more preferably from 7.0 to 8.0.
  • the composition at 1wt% dilution in deionized water at 20°C has a reserve alkalinity to pH 7.0 of less than 4.0gNaOH/100g, preferably less than 3.0gNaOH/100g, or even less than 2.0gNaOH/100g.
  • the composition comprises from 30wt% to 90wt% base detergent particle, wherein the base detergent particle comprising (by weight of the base detergent particle): (a) from 4wt% to 35wt% anionic detersive surfactant; (b) optionally, from 1wt% to 8wt% zeolite builder; (c) from 0wt% to 4wt% phosphate builder; (d) from 0wt% to 8wt%, preferably from 0wt% to 4wt%, sodium carbonate; (e) from 0wt% to 8wt%, preferably from 0wt% to 4wt%, sodium silicate; (f) from 1wt% to 10wt% organic acid; and (g) optionally, from 1wt% to 10wt% magnesium sulphate.
  • the base detergent particle is in the form of a spray-dried particle.
  • the organic acid comprises citric acid and the base detergent particle comprises from 1wt% to 10wt% citric acid.
  • the organic acid may be at least partially coated, or even completely coated, by a water-dispersible material.
  • Water-dispersible material also typically includes water-soluble material.
  • a suitable water-dispersible material is wax.
  • a suitable water-soluble material is citrate.
  • the anionic detersive surfactant comprises alkyl benzene sulphonate and wherein the base detergent particle comprises from 4wt% to 35wt% alkyl benzene sulphonate.
  • the base detergent particle comprises from 0.5wt% to 5wt% carboxylate co-polymer, wherein the carboxylate co-polymer comprises: (i) from 50 to less than 98 wt% structural units derived from one or more monomers comprising carboxyl groups; (ii) from 1 to less than 49 wt% structural units derived from one or more monomers comprising sulfonate moieties; and (iii) from 1 to 49 wt% structural units derived from one or more types of monomers selected from ether bond-containing monomers represented by formulas (I) and (II): wherein in formula (I), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 provided X represents a number 1-5 when R is a single bond, and R 1 is a hydrogen atom or C 1 to C 20 organic group; wherein in formula (II), R 0 represents a hydrogen atom or CH
  • the base detergent particle comprises from 30wt% to 70wt% sodium sulphate.
  • the composition comprises from 1wt% to 20wt% co-surfactant particle, wherein the co-surfactant particle comprises: (a) from 25wt% to 60wt% co-surfactant; (b) from 10wt% to 50wt% carbonate salt; and (c) from 1wt% to 30wt% silica.
  • the co-surfactant particle is in the form of an agglomerate.
  • the co-surfactant comprises alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 2.5, and wherein the co-surfactant particle comprises from 25wt% to 60wt% alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 2.5.
  • the co-surfactant particle may comprise linear alkyl benzene sulphonate and alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 2.5.
  • composition at 1wt% dilution in deionized water at 20°C may have an equilibrium pH in the range of from 6.5 to 8.5.
  • the composition may have a reserve alkalinity to pH 7.5 of less than 3.0gNaOH/100g.
  • the composition may comprise from 0wt% to 6wt%, preferably from 0wt% to 4wt%, sodium bicarbonate.
  • the composition may comprise from 0wt% to 4wt% sodium carbonate.
  • the composition may comprise from 0wt% to 4wt% sodium silicate.
  • the composition may comprise from 0wt% to 4wt% phosphate builder.
  • composition is preferably substantially free of phosphate builder.
  • the composition may be substantially free of sodium carbonate.
  • the composition may be substantially free of sodium bicarbonate.
  • the composition may be substantially free of sodium silicate.
  • composition may comprise the combination of lipase enzyme and soil release polymer.
  • the composition comprises alkyl benzene sulphonate, wherein the alkyl benzene sulphonate comprises at least 25wt% of the 2-phenyl isomer.
  • a suitable alkyl benzene sulphonate having this feature is obtained by DETAL synthesis.
  • the composition may comprises alkyl amine oxide.
  • the composition may comprises from 0.5wt% to 8wt% carboxylate co-polymer, wherein the carboxylate co-polymer comprises: (i) from 50 to less than 98 wt% structural units derived from one or more monomers comprising carboxyl groups; (ii) from 1 to less than 49 wt% structural units derived from one or more monomers comprising sulfonate moieties; and (iii) from 1 to 49 wt% structural units derived from one or more types of monomers selected from ether bond-containing monomers represented by formulas (I) and (II): wherein in formula (I), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 provided X represents a number 1-5 when R is a single bond, and R 1 is a hydrogen atom or C 1 to C 20 organic group; wherein in formula (II), R 0 represents a hydrogen atom or CH 3
  • composition may comprise a polyester soil release polymer having the structure:
  • composition may comprise a polyester soil release polymer consisting of structure units (1) to (3): wherein:
  • the composition may comprise carboxymethyl cellulose having a degree of substitution greater than 0.65 and a degree of blockiness greater than 0.45.
  • the composition may comprise an alkoxylated polyalkyleneimine, wherein said alkoxylated polyalkyleneimine has a polyalkyleneimine core with one or more side chains bonded to at least one nitrogen atom in the polyalkyleneimine core, wherein said alkoxylated polyalkyleneimine has an empirical formula (I) of (PEI) a -(EO) b -R 1 , wherein a is the average number-average molecular weight (MW PEI ) of the polyalkyleneimine core of the alkoxylated polyalkyleneimine and is in the range of from 100 to 100,000 Daltons, wherein b is the average degree of ethoxylation in said one or more side chains of the alkoxylated polyalkyleneimine and is in the range of from 5 to 40, and wherein R 1 is independently selected from the group consisting of hydrogen, C 1 -C 4 alkyls, and combinations thereof.
  • PEI average number-average molecular weight
  • the composition may comprise an alkoxylated polyalkyleneimine, wherein said alkoxylated polyalkyleneimine has a polyalkyleneimine core with one or more side chains bonded to at least one nitrogen atom in the polyalkyleneimine core, wherein the alkoxylated polyalkyleneimine has an empirical formula (II) of (PEI) o -(EO) m (PO) n -R 2 or (PEI) o -(PO) n (EO) m -R 2 , wherein o is the average number-average molecular weight (MW PEI ) of the polyalkyleneimine core of the alkoxylated polyalkyleneimine and is in the range of from 100 to 100,000 Daltons, wherein m is the average degree of ethoxylation in said one or more side chains of the alkoxylated polyalkyleneimine which ranges from 10 to 50, wherein n is the average degree of propoxylation in said one or more side chains of the
  • composition may comprise the combination of a non-ionic soil release polymer and an anionic soil release polymer.
  • the composition is substantially free of pre-formed peracid.
  • composition may comprise:
  • the bleach activator may comprise sodium tetraacetylethylenediamine, and wherein the composition may comprise from 0.5wt% to 5wt% sodium tetraacetylethylenediamine.
  • the chelant may comprise sodium salt of methylglycine diacetic acid (MGDA), and wherein the composition may comprise from 0.5wt% to 5wt% sodium salt of methylglycine diacetic acid (MGDA).
  • MGDA methylglycine diacetic acid
  • the chelant may comprise ethylenediamine disuccinic acid (EDDS), and wherein the composition may comprise from 0.5wt% to 5wt% ethylenediamine disuccinic acid (EDDS).
  • EDDS ethylenediamine disuccinic acid
  • the chelant may comprise disodium 4,5-dihydroxy-1,3-benzenedisulfonate, and wherein the composition may comprise from 0.5wt% to 5wt% disodium 4,5-dihydroxy-1,3-benzenedisulfonate.
  • the composition may comprises 4,4'-bis-(triazinylamino)-stilbene-2,2'-disulfonic acid brightener and/or 4,4'-distyryl biphenyl brightener.
  • composition may comprises an acyl hydrazone bleach catalyst, wherein the acyl hydrazone bleach catalyst has the formula I:
  • composition may comprise a hueing agent having the following structure: wherein:
  • composition may comprise a hueing agent having the following structure: wherein the index values x and y are independently selected from 1 to 10.
  • the composition may comprise a hueing agent selected from Acid Violet 50, Direct Violet 9, 66 and 99, Solvent Violet 13 and any combination thereof.
  • composition may comprise a protease having at least 90% identity to the amino acid sequence of Bacillus amyloliquefaciens as shown in SEQ ID NO:9
  • the composition may comprise a protease having at least 90% identity to the amino acid sequence of Bacillus amyloliquefaciens BPN' as shown in SEQ ID NO:10, and which comprises one or more mutations selected from group consisting of V4I, S9R, A15T, S24G, S33T, S53G, V68A, N76D, S78N, S101M/N, Y167F, and Y217Q.
  • composition may comprise a protease having at least 90% identity to the amino acid sequence of Bacillus thermoproteolyticus as shown in SEQ ID NO:11.
  • composition may comprise a protease having at least 90% identity to the amino acid sequence of Bacillus lentus as shown in SEQ IS NO:12, and which comprises one or mutations selected from the group consisting of S3T, V4I, A194P, V199M, V205I, and L217D.
  • composition may comprise a protease having at least 90% identity to the amino acid sequence of Bacillus sp. TY145 as shown in SEQ ID NO:13.
  • composition may comprises a protease having at least 90% identity to the amino acid sequence of Bacillus sp. KSM-KP43 as shown in SEQ ID NO:14.
  • the composition may comprise a variant of the wild-type amylase from Bacillus sp. which has at least 90% identity for amino acid sequence SEQ ID NO:5, and which comprises one or more mutations at positions N195, G477, G304, W140, W189, D134, V206, Y243, E260, F262, W284, W347, W439, W469 and/or G476, and optionally which comprises the deletions of D183* and/or G184*.
  • the composition may comprise a variant of the wild-type amylase from Bacillus sp. which has at least 90% identity for amino acid sequence SEQ ID NO:6, and which comprises one or more mutations at positions 9, 26, 30, 33, 82, 37, 106, 118, 128, 133, 149, 150, 160, 178, 182, 186, 193, 195, 202, 214, 231, 256, 257, 258, 269, 270, 272, 283, 295, 296, 298, 299, 303, 304, 305, 311, 314, 315, 318, 319, 320, 323, 339, 345, 361, 378, 383, 419, 421, 437, 441, 444, 445, 446, 447, 450, 458, 461, 471, 482 and/or 484, preferably that also contain the deletions of D183* and G184*.
  • composition may comprise a variant of the wild-type amylase from Bacillus sp. KSM-K38 which has at least 90% identity for amino acid sequence SEQ ID NO:7.
  • composition may comprise a variant of the wild-type amylase from Cytophaga sp. which has at least 60% identity for amino acid sequence SEQ ID NO:8.
  • composition may comprise a variant of the wild-type lipase from Thermomyces lanuginosus which has at least 90% identity for amino acid sequence SEQ ID NO:1.
  • composition may comprise a variant of the wild-type lipase from Thermomyces lanuginosus which has at least 90% identity for amino acid sequence SEQ ID NO:1, and which comprises T231R and/or N233R mutations.
  • the composition may comprise a variant of the wild-type lipase from Thermomyces lanuginosus which has at least 90% identity for amino acid sequence SEQ ID NO:1, and which comprises G91A, D96G, G225R, T231R and/or N233R mutations.
  • the composition may comprise a cellulase that is a wild-type or variant of a microbially-derived endoglucanase endogenous to Bacillus sp. exhibiting endo-beta-1,4-glucanase activity (E.C. 3.2.1.4) which has at least 90% identity to the amino acid sequence SEQ ID NO:2.
  • the composition may comprise cellulase that is a wild-type or variant of a microbially-derived endoglucanase endogenous to Paenibacillus polymyxa exhibiting endo-beta-1,4-glucanase activity (E.C. 3.2.1.4) which has at least 90% identity to amino acid sequence SEQ ID NO:3.
  • the composition may comprise a cellulase that is a hybrid fusion endoglucanase comprising a Glycosyl Hydrolase Family 45 catalytic domain that is a wild-type or variant of a microbially-derived endoglucanase endogenous to Melanocarpus albomyces, and a carbohydrate binding module that is a wild-type or variant of a carbohydrate binding module endogenous to Trichoderma reesei, and which has at least 90% identity to amino acid sequence SEQ ID NO:4.
  • composition may comprise an enzyme selected from mannanase, pectate lyase, laccase, polyesterase, galactanase, acyltransferase, and any combination thereof.
  • the composition may comprise a perfume, wherein the perfume comprises from 60wt% to 85wt% ester perfume raw materials having the structure: wherein R1 and R2 are independently selected from C1 to C30 linear or branched, cyclic or non-cyclic, aromatic or non-aromatic, saturated or un-saturated, substituted or unsubstituted alkyl.
  • the composition may comprise: (a) alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 2.0; (b) perfume, wherein the perfume comprises from 60wt% to 85wt% ester perfume raw materials having the structure: wherein R1 and R2 are independently selected from C1 to C30 linear or branched, cyclic or non-cyclic, aromatic or non-aromatic, saturated or un-saturated, substituted or unsubstituted alkyl.
  • the composition may comprise polyvinyl N oxide polymer.
  • the composition may comprise: silicate salt particles, especially sodium silicate particles; and/or carbonate salt particles, especially sodium bicarbonate particles. However it may be preferred for the composition to be free of silicate salt particles, especially free of sodium silicate particles. It may also be preferred for the composition to be free of carbonate salt particles, especially free of sodium carbonate particles.
  • the composition comprises from 1wt% to 10wt% dry-added acid particles, preferably from 2wt% to 8wt% dry-added acid particles.
  • a suitable dry-added acid is an organic acid, preferably a carboxylic acid, preferably cirtric acid.
  • the solid free-flowing particulate laundry detergent composition typically comprises a base detergent particle.
  • the base detergent particle may be in the form of spray-dried particle, or an agglomerate, preferably the base particle is in the form of a spray-dried particle.
  • the composition comprises from 30wt% to 90wt% base detergent particle, preferably from 40wt% to 80wt%, more preferably from 50wt% to 70wt% base detergent particle.
  • the base detergent particle typically comprises from 1wt% to 10wt% organic acid, preferably from 2wt% to 8wt%, or from 3wt% to 7wt% organic acid.
  • a preferred organic acid is a carboxylic acid, preferably citric acid.
  • the base detergent particle typically comprises from 1wt% to 10wt% magnesium sulphate, preferably from 2wt% to 8wt%, or from 3wt% to 6wt% magnesium sulphate.
  • the base detergent particle typically comprises from 1wt% to 8wt%, preferably from 2wt% to 6wt% or from 2wt% to 4wt% zeolite.
  • a preferred zeolite is zeolite A, especially zeolite 4A.
  • the base detergent particle typically comprises from 5wt% to 40wt%, preferably from 10wt% to 30wt% anionic detersive surfactant.
  • a preferred anionic detersive surfactant is alkyl benzene sulphonate.
  • the base detergent particle typically comprises from 0.5wt% to 5wt% polymer, preferably from 1wt% to 3wt% polymer.
  • a preferred polymer is a carboxylate polymer, more preferably a co-polymer that comprises: (i) from 50 to less than 98 wt% structural units derived from one or more monomers comprising carboxyl groups; (ii) from 1 to less than 49 wt% structural units derived from one or more monomers comprising sulfonate moieties; and (iii) from 1 to 49 wt% structural units derived from one or more types of monomers selected from ether bond-containing monomers represented by formulas (I) and (II): wherein in formula (I), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 provided X represents a number 1-5 when R is a single bond, and R 1 is a hydrogen atom or C 1
  • the base detergent particle comprises from 30wt% to 70wt%, or from 40wt% to 70wt% sodium sulphate.
  • the detergent composition comprises a co-surfactant particle.
  • the composition comprises from 1wt% to 20wt%, or from 2wt% to 15wt%, or from 3wt% to 10wt% co-surfactant particle.
  • the co-surfactant particle is in the form of an agglomerate, extrudate, needle, noodle, flake or any combination thereof.
  • the co-surfactant particle is in the form of an agglomerate.
  • the co-surfactant particle typically comprises from 25wt% to 60wt% co-surfactant, preferably from 30wt% to 50wt% co-surfactant.
  • a preferred co-surfactant is alkyl alkoxy sulphate, preferably a C 10 -C 20 alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 2.0.
  • the co-surfactant particle comprises from 10wt% to 50wt% carbonate salt.
  • a preferred carbonate salt is sodium carbonate and/or sodium bicarbonate.
  • the co-surfactant particle comprises from 1wt% to 30wt% silica, preferably from 5wt% to 20wt% silica.
  • Suitable laundry detergent compositions comprise a detergent ingredient selected from: detersive surfactant, such as anionic detersive surfactants, non-ionic detersive surfactants, cationic detersive surfactants, zwitterionic detersive surfactants and amphoteric detersive surfactants; polymers, such as carboxylate polymers, soil release polymer, anti-redeposition polymers, cellulosic polymers and care polymers; bleach, such as sources of hydrogen peroxide, bleach activators, bleach catalysts and pre-formed peracids; photobleach, such as such as zinc and/or aluminium sulphonated phthalocyanine; enzymes, such as proteases, amylases, cellulases, lipases; zeolite builder; phosphate builder; co-builders, such as citric acid and citrate; sulphate salt, such as sodium sulphate; chloride salt, such as sodium chloride; brighteners; chelants; hueing
  • the composition may comprise: silicate salt, especially sodium silicate; and/or carbonate salt, especially sodium bicarbonate and/or sodium carbonate.
  • silicate salt especially sodium silicate
  • carbonate salt especially sodium bicarbonate and/or sodium carbonate.
  • silicate salt especially sodium silicate
  • carbonate salt especially free of sodium carbonate and/or sodium bicarbonate.
  • the composition may have a pH profile such that upon dilution in de-ionized water at a concentration of 1g/L at a temperature of 20oC, the composition has a pH in the range of from 6.5 to 8.5, preferably from 7.0 to 8.0.
  • Suitable laundry detergent compositions may have a low buffering capacity.
  • Such laundry detergent compositions typically have a reserve alkalinity to pH 7.5 of less than 5.0gNaOH/100g, preferably less than 3.0gNaOH/100g.
  • the composition is preferably substantially free of pre-formed peracid.
  • the composition is prerferably substantially free of phthalimido-peroxycaproic acid. Substantially free means no deliberately added.
  • Suitable detersive surfactants include anionic detersive surfactants, non-ionic detersive surfactant, cationic detersive surfactants, zwitterionic detersive surfactants and amphoteric detersive surfactants.
  • Suitable detersive surfactants may be linear or branched, substituted or un-substituted, and may be derived from petrochemical material or biomaterial.
  • Anionic detersive surfactant Suitable anionic detersive surfactants include sulphonate and sulphate detersive surfactants.
  • Suitable sulphonate detersive surfactants include methyl ester sulphonates, alpha olefin sulphonates, alkyl benzene sulphonates, especially alkyl benzene sulphonates, preferably C 10-13 alkyl benzene sulphonate.
  • Suitable alkyl benzene sulphonate (LAS) is obtainable, preferably obtained, by sulphonating commercially available linear alkyl benzene (LAB); suitable LAB includes low 2-phenyl LAB, other suitable LAB include high 2-phenyl LAB, such as those supplied by Sasol under the tradename Hyblene®.
  • Suitable sulphate detersive surfactants include alkyl sulphate, preferably C 8-18 alkyl sulphate, or predominantly C 12 alkyl sulphate.
  • a preferred sulphate detersive surfactant is alkyl alkoxylated sulphate, preferably alkyl ethoxylated sulphate, preferably a C 8-18 alkyl alkoxylated sulphate, preferably a C 8-18 alkyl ethoxylated sulphate, preferably the alkyl alkoxylated sulphate has an average degree of alkoxylation of from 0.5 to 20, preferably from 0.5 to 10, preferably the alkyl alkoxylated sulphate is a C 8-18 alkyl ethoxylated sulphate having an average degree of ethoxylation of from 0.5 to 10, preferably from 0.5 to 5, more preferably from 0.5 to 3 and most preferably from 0.5 to 1.5.
  • alkyl sulphate, alkyl alkoxylated sulphate and alkyl benzene sulphonates may be linear or branched, substituted or un-substituted, and may be derived from petrochemical material or biomaterial.
  • anionic detersive surfactants include alkyl ether carboxylates.
  • Suitable anionic detersive surfactants may be in salt form, suitable counter-ions include sodium, calcium, magnesium, amino alcohols, and any combination thereof.
  • suitable counter-ions include sodium, calcium, magnesium, amino alcohols, and any combination thereof.
  • a preferred counter-ion is sodium.
  • Non-ionic detersive surfactant Suitable non-ionic detersive surfactants are selected from the group consisting of: C 8 -C 18 alkyl ethoxylates, such as, NEODOL® non-ionic surfactants from Shell; C 6 -C 12 alkyl phenol alkoxylates wherein preferably the alkoxylate units are ethyleneoxy units, propyleneoxy units or a mixture thereof; C 12 -C 18 alcohol and C 6 -C 12 alkyl phenol condensates with ethylene oxide/propylene oxide block polymers such as Pluronic® from BASF; alkylpolysaccharides, preferably alkylpolyglycosides; methyl ester ethoxylates; polyhydroxy fatty acid amides; ether capped poly(oxyalkylated) alcohol surfactants; and mixtures thereof.
  • C 8 -C 18 alkyl ethoxylates such as, NEODOL® non-ionic surfactants from Shell
  • Suitable non-ionic detersive surfactants are alkylpolyglucoside and/or an alkyl alkoxylated alcohol.
  • Suitable non-ionic detersive surfactants include alkyl alkoxylated alcohols, preferably C 8-18 alkyl alkoxylated alcohol, preferably a C 8-18 alkyl ethoxylated alcohol, preferably the alkyl alkoxylated alcohol has an average degree of alkoxylation of from 1 to 50, preferably from 1 to 30, or from 1 to 20, or from 1 to 10, preferably the alkyl alkoxylated alcohol is a C 8-18 alkyl ethoxylated alcohol having an average degree of ethoxylation of from 1 to 10, preferably from 1 to 7, more preferably from 1 to 5 and most preferably from 3 to 7.
  • the alkyl alkoxylated alcohol can be linear or branched, and substituted or un-substituted.
  • Suitable nonionic detersive surfactants include secondary alcohol-based detersive surfactants.
  • Cationic detersive surfactant Suitable cationic detersive surfactants include alkyl pyridinium compounds, alkyl quaternary ammonium compounds, alkyl quaternary phosphonium compounds, alkyl ternary sulphonium compounds, and mixtures thereof.
  • Preferred cationic detersive surfactants are quaternary ammonium compounds having the general formula: (R)(R 1 )(R 2 )(R 3 )N + X - wherein, R is a linear or branched, substituted or unsubstituted C 6-18 alkyl or alkenyl moiety, R 1 and R 2 are independently selected from methyl or ethyl moieties, R 3 is a hydroxyl, hydroxymethyl or a hydroxyethyl moiety, X is an anion which provides charge neutrality, preferred anions include: halides, preferably chloride; sulphate; and sulphonate.
  • Suitable zwitterionic detersive surfactants include amine oxides and/or betaines.
  • Suitable polymers include carboxylate polymers, soil release polymers, anti-redeposition polymers, cellulosic polymers, care polymers and any combination thereof.
  • Carboxylate polymer The composition may comprise a carboxylate polymer, such as a maleate/acrylate random copolymer or polyacrylate homopolymer.
  • Suitable carboxylate polymers include: polyacrylate homopolymers having a molecular weight of from 4,000 Da to 9,000 Da; maleate/acrylate random copolymers having a molecular weight of from 50,000 Da to 100,000 Da, or from 60,000 Da to 80,000 Da.
  • Another suitable carboxylate polymer is a co-polymer that comprises: (i) from 50 to less than 98 wt% structural units derived from one or more monomers comprising carboxyl groups; (ii) from 1 to less than 49 wt% structural units derived from one or more monomers comprising sulfonate moieties; and (iii) from 1 to 49 wt% structural units derived from one or more types of monomers selected from ether bond-containing monomers represented by formulas (I) and (II): wherein in formula (I), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 provided X represents a number 1-5 when R is a single bond, and R 1 is a hydrogen atom or C 1 to C 20 organic group; wherein in formula (II), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond,
  • the polymer has a weight average molecular weight of at least 50kDa, or even at least 70kDa.
  • Soil release polymer The composition may comprise a soil release polymer.
  • a suitable soil release polymer has a structure as defined by one of the following structures (I), (II) or (III): (I) -[(OCHR 1 -CHR 2 ) a -O-OC-Ar-CO-] d (II) -[(OCHR 3 -CHR 4 ) b -O-OC-sAr-CO-] e (III) -[(OCHR 5 -CHR 6 ) c -OR 7 ] f wherein:
  • Suitable soil release polymers are sold by Clariant under the TexCare® series of polymers, e.g. TexCare® SRN240 and TexCare® SRA300.
  • Other suitable soil release polymers are sold by Solvay under the Repel-o-Tex® series of polymers, e.g. Repel-o-Tex® SF2 and Repel-o-Tex® Crystal.
  • Anti-redeposition polymer examples include polyethylene glycol polymers and/or polyethyleneimine polymers.
  • Suitable polyethylene glycol polymers include random graft co-polymers comprising: (i) hydrophilic backbone comprising polyethylene glycol; and (ii) hydrophobic side chain(s) selected from the group consisting of: C 4 -C 25 alkyl group, polypropylene, polybutylene, vinyl ester of a saturated C 1 -C 6 mono-carboxylic acid, C 1 -C 6 alkyl ester of acrylic or methacrylic acid, and mixtures thereof.
  • Suitable polyethylene glycol polymers have a polyethylene glycol backbone with random grafted polyvinyl acetate side chains.
  • the average molecular weight of the polyethylene glycol backbone can be in the range of from 2,000 Da to 20,000 Da, or from 4,000 Da to 8,000 Da.
  • the molecular weight ratio of the polyethylene glycol backbone to the polyvinyl acetate side chains can be in the range of from 1:1 to 1:5, or from 1:1.2 to 1:2.
  • the average number of graft sites per ethylene oxide units can be less than 1, or less than 0.8, the average number of graft sites per ethylene oxide units can be in the range of from 0.5 to 0.9, or the average number of graft sites per ethylene oxide units can be in the range of from 0.1 to 0.5, or from 0.2 to 0.4.
  • a suitable polyethylene glycol polymer is Sokalan HP22. Suitable polyethylene glycol polymers are described in WO08/007320 .
  • Cellulosic polymer Suitable cellulosic polymers are selected from alkyl cellulose, alkyl alkoxyalkyl cellulose, carboxyalkyl cellulose, alkyl carboxyalkyl cellulose, sulphoalkyl cellulose, more preferably selected from carboxymethyl cellulose, methyl cellulose, methyl hydroxyethyl cellulose, methyl carboxymethyl cellulose, and mixures thereof.
  • Suitable carboxymethyl celluloses have a degree of carboxymethyl substitution from 0.5 to 0.9 and a molecular weight from 100,000 Da to 300,000 Da. Suitable carboxymethyl celluloses have a degree of substitution greater than 0.65 and a degree of blockiness greater than 0.45, e.g. as described in WO09/154933 .
  • Suitable care polymers include cellulosic polymers that are cationically modified or hydrophobically modified. Such modified cellulosic polymers can provide anti-abrasion benefits and dye lock benefits to fabric during the laundering cycle. Suitable cellulosic polymers include cationically modified hydroxyethyl cellulose.
  • Suitable care polymers include dye lock polymers, for example the condensation oligomer produced by the condensation of imidazole and epichlorhydrin, preferably in ratio of 1:4:1.
  • a suitable commercially available dye lock polymer is Polyquart® FDI (Cognis).
  • Suitable care polymers include amino-silicone, which can provide fabric feel benefits and fabric shape retention benefits.
  • Suitable bleach includes sources of hydrogen peroxide, bleach activators, bleach catalysts, pre-formed peracids and any combination thereof.
  • a particularly suitable bleach includes a combination of a source of hydrogen peroxide with a bleach activator and/or a bleach catalyst.
  • Source of hydrogen peroxide include sodium perborate and/or sodium percarbonate.
  • Suitable bleach activators include tetra acetyl ethylene diamine and/or alkyl oxybenzene sulphonate.
  • the composition may comprise a bleach catalyst.
  • Suitable bleach catalysts include oxaziridinium bleach catalysts, transistion metal bleach catalysts, especially manganese and iron bleach catalysts.
  • a suitable bleach catalyst has a structure corresponding to general formula below: wherein R 13 is selected from the group consisting of 2-ethylhexyl, 2-propylheptyl, 2-butyloctyl, 2-pentylnonyl, 2-hexyldecyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, iso-nonyl, isodecyl, iso-tridecyl and iso-pentadecyl.
  • Pre-formed peracid Suitable pre-form peracids include phthalimido-peroxycaproic acid. However, it is preferred that the composition is substantially free of pre-formed peracid. By: “substantially free” it is meant: “no deliberately added”.
  • Enzymes include lipases, proteases, cellulases, amylases and any combination thereof.
  • Suitable proteases include metalloproteases and/or serine proteases.
  • suitable neutral or alkaline proteases include: subtilisins (EC 3.4.21.62); trypsin-type or chymotrypsin-type proteases; and metalloproteases.
  • the suitable proteases include chemically or genetically modified mutants of the aforementioned suitable proteases.
  • protease enzymes include those sold under the trade names Alcalase®, Savinase®, Primase®, Durazym®, Polarzyme®, Kannase®, Liquanase®, Liquanase Ultra®, Savinase Ultra®, Ovozyme®, Neutrase®, Everlase® and Esperase® by Novozymes A/S (Denmark), those sold under the tradename Maxatase®, Maxacal®, Maxapem®, Preferenz P® series of proteases including Preferenz® P280, Preferenz® P281, Preferenz® P2018-C, Preferenz® P2081-WE, Preferenz® P2082-EE and Preferenz® P2083-A/J, Properase®, Purafect®, Purafect Prime®, Purafect Ox®, FN3®, FN4®, Excellase® and Purafect OXP® by DuPont, those sold
  • a suitable protease is described in WO11/140316 and WO11/072117 .
  • Amylase Suitable amylases are derived from AA560 alpha amylase endogenous to Bacillus sp. DSM 12649, preferably having the following mutations: R118K, D183*, G184*, N195F, R320K, and/or R458K.
  • Suitable commercially available amylases include Stainzyme®, Stainzyme® Plus, Natalase, Termamyl®, Termamyl® Ultra, Liquezyme® SZ, Duramyl®, Everest® (all Novozymes) and Spezyme® AA, Preferenz S® series of amylases, Purastar® and Purastar® Ox Am, Optisize® HT Plus (all Du Pont).
  • a suitable amylase is described in WO06/002643 .
  • Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are also suitable. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, e.g., the fungal cellulases produced from Humicola insolens, Myceliophthora thermophila and Fusarium oxysporum.
  • cellulases include Celluzyme®, Carezyme®, and Carezyme® Premium, Celluclean® and Whitezyme® (Novozymes A/S), Revitalenz® series of enzymes (Du Pont), and Biotouch® series of enzymes (AB Enzymes).
  • Suitable commercially available cellulases include Carezyme® Premium, Celluclean® Classic. Suitable cellulases are described in WO07/144857 and WO10/056652 .
  • Suitable lipases include those of bacterial, fungal or synthetic origin, and variants thereof. Chemically modified or protein engineered mutants are also suitable. Examples of suitable lipases include lipases from Humicola (synonym Thermomyces ), e.g., from H. lanuginosa ( T. lanuginosus ).
  • the lipase may be a "first cycle lipase", e.g. such as those described in WO06/090335 and WO13/116261 .
  • the lipase is a first-wash lipase, preferably a variant of the wild-type lipase from Thermomyces lanuginosus comprising T231R and/or N233R mutations.
  • Preferred lipases include those sold under the tradenames Lipex®, Lipolex® and Lipoclean® by Novozymes, Bagsvaerd, Denmark.
  • Liprl 139 e.g. as described in WO2013/171241
  • TfuLip2 e.g. as described in WO2011/084412 and WO2013/033318 .
  • Other enzymes are bleaching enzymes, such as peroxidases/oxidases, which include those of plant, bacterial or fungal origin and variants thereof.
  • bleaching enzymes such as peroxidases/oxidases, which include those of plant, bacterial or fungal origin and variants thereof.
  • commercially available peroxidases include Guardzyme® (Novozymes A/S).
  • Other suitable enzymes include choline oxidases and perhydrolases such as those used in Gentle Power BleachTM.
  • Suitable enzymes include pectate lyases sold under the tradenames X-Pect®, Pectaway® (from Novozymes A/S, Bagsvaerd, Denmark) and PrimaGreen® (DuPont) and mannanases sold under the tradenames Mannaway® (Novozymes A/S, Bagsvaerd, Denmark), and Mannastar® (Du Pont).
  • identity refers to the relatedness between two amino acid sequences.
  • the degree of sequence identity between two amino acid sequences is determined using the Needleman-Wunsch algorithm ( Needleman and Wunsch, 1970, J. Mol. Biol. 48: 443-453 ) as implemented in the Needle program of the EMBOSS package ( EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, Trends Genet. 16: 276-277 ), preferably version 3.0.0 or later.
  • the optional parameters used are gap open penalty of 10, gap extension penalty of 0.5, and the EBLOSUM62 (EMBOSS version of BLOSUM62) substitution matrix.
  • Zeolite builder The composition may comprise zeolite builder.
  • the composition may comprise from 0wt% to 5wt% zeolite builder, or 3wt% zeolite builder.
  • the composition may even be substantially free of zeolite builder; substantially free means "no deliberately added".
  • Typical zeolite builders include zeolite A, zeolite P and zeolite MAP.
  • the composition may comprise phosphate builder.
  • the composition may comprise from 0wt% to 5wt% phosphate builder, or to 3wt%, phosphate builder.
  • the composition may even be substantially free of phosphate builder; substantially free means "no deliberately added".
  • a typical phosphate builder is sodium tri-polyphosphate.
  • Carbonate salt The composition may comprise carbonate salt.
  • the composition may comprise from 0wt% to 5wt% carbonate salt.
  • the composition may even be substantially free of carbonate salt; substantially free means "no deliberately added".
  • Suitable carbonate salts include sodium carbonate and sodium bicarbonate.
  • Silicate salt The composition may comprise silicate salt.
  • the composition may comprise from 0wt% to 5wt% silicate salt.
  • the composition may even be substantially free of silicate salt; substantially free means "no deliberately added".
  • a preferred silicate salt is sodium silicate, especially preferred are sodium silicates having a Na 2 O:SiO 2 ratio of from 1.0 to 2.8, preferably from 1.6 to 2.0.
  • Sulphate salt A suitable sulphate salt is sodium sulphate.
  • Suitable fluorescent brighteners include: di-styryl biphenyl compounds, e.g. Tinopal® CBS-X, di-amino stilbene di-sulfonic acid compounds, e.g. Tinopal® DMS pure Xtra and Blankophor® HRH, and Pyrazoline compounds, e.g. Blankophor® SN, and coumarin compounds, e.g. Tinopal® SWN.
  • Preferred brighteners are: sodium 2 (4-styryl-3-sulfophenyl)-2H-napthol[1,2-d]triazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl)amino 1 ,3,5- triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'- bis(2-sulfostyryl)biphenyl.
  • a suitable fluorescent brightener is C.I. Fluorescent Brightener 260, which may be used in its beta or alpha crystalline forms, or a mixture of these forms.
  • the composition may also comprise a chelant selected from: diethylene triamine pentaacetate, diethylene triamine penta(methyl phosphonic acid), ethylene diamine-N'N'-disuccinic acid, ethylene diamine tetraacetate, ethylene diamine tetra(methylene phosphonic acid) and hydroxyethane di(methylene phosphonic acid).
  • a preferred chelant is ethylene diamine-N'N'-disuccinic acid (EDDS) and/or hydroxyethane diphosphonic acid (HEDP).
  • the composition preferably comprises ethylene diamine-N'N'- disuccinic acid or salt thereof.
  • the ethylene diamine-N'N'-disuccinic acid is in S,S enantiomeric form.
  • the composition comprises 4,5-dihydroxy-m-benzenedisulfonic acid disodium salt.
  • Preferred chelants may also function as calcium carbonate crystal growth inhibitors such as: 1-hydroxyethanediphosphonic acid (HEDP) and salt thereof; N,N-dicarboxymethyl-2-aminopentane-1,5-dioic acid and salt thereof; 2-phosphonobutane-1,2,4-tricarboxylic acid and salt thereof; and combination thereof.
  • Hueing agent Suitable hueing agents include small molecule dyes, typically falling into the Colour Index (C.I.) classifications of Acid, Direct, Basic, Reactive (including hydrolysed forms thereof) or Solvent or Disperse dyes, for example classified as Blue, Violet, Red, Green or Black, and provide the desired shade either alone or in combination.
  • C.I. Colour Index
  • Solvent or Disperse dyes for example classified as Blue, Violet, Red, Green or Black, and provide the desired shade either alone or in combination.
  • Preferred such hueing agents include Acid Violet 50, Direct Violet 9, 66 and 99, Solvent Violet 13 and any combination thereof.
  • hueing agents are known and described in the art which may be suitable for the present invention, such as hueing agents described in WO2014/089386 .
  • Suitable hueing agents include phthalocyanine and azo dye conjugates, such as described in WO2009/069077 .
  • Suitable hueing agents may be alkoxylated. Such alkoxylated compounds may be produced by organic synthesis that may produce a mixture of molecules having different degrees of alkoxylation. Such mixtures may be used directly to provide the hueing agent, or may undergo a purification step to increase the proportion of the target molecule.
  • Suitable hueing agents include alkoxylated bis-azo dyes, such as described in WO2012/054835 , and/or alkoxylated thiophene azo dyes, such as described in WO2008/087497 and WO2012/166768 .
  • the hueing agent may be incorporated into the detergent composition as part of a reaction mixture which is the result of the organic synthesis for a dye molecule, with optional purification step(s).
  • reaction mixtures generally comprise the dye molecule itself and in addition may comprise un-reacted starting materials and/or by-products of the organic synthesis route.
  • Suitable hueing agents can be incorporated into hueing dye particles, such as described in WO 2009/069077 .
  • Suitable dye transfer inhibitors include polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone, polyvinyloxazolidone, polyvinylimidazole and mixtures thereof.
  • Preferred are poly(vinyl pyrrolidone), poly(vinylpyridine betaine), poly(vinylpyridine N-oxide), poly(vinyl pyrrolidone-vinyl imidazole) and mixtures thereof.
  • Suitable commercially available dye transfer inhibitors include PVP-K15 and K30 (Ashland), Sokalan® HP165, HP50, HP53, HP59, HP56K, HP56, HP66 (BASF), Chromabond® S-400, S403E and S-100 (Ashland).
  • Suitable perfumes comprise perfume materials selected from the group: (a) perfume materials having a ClogP of less than 3.0 and a boiling point of less than 250°C (quadrant 1 perfume materials); (b) perfume materials having a ClogP of less than 3.0 and a boiling point of 250°C or greater (quadrant 2 perfume materials); (c) perfume materials having a ClogP of 3.0 or greater and a boiling point of less than 250°C (quadrant 3 perfume materials); (d) perfume materials having a ClogP of 3.0 or greater and a boiling point of 250°C or greater (quadrant 4 perfume materials); and (e) mixtures thereof.
  • the perfume may be in the form of a perfume delivery technology. Such delivery technologies further stabilize and enhance the deposition and release of perfume materials from the laundered fabric. Such perfume delivery technologies can also be used to further increase the longevity of perfume release from the laundered fabric. Suitable perfume delivery technologies include: perfume microcapsules, pro-perfumes, polymer assisted deliveries, molecule assisted deliveries, fiber assisted deliveries, amine assisted deliveries, cyclodextrin, starch encapsulated accord, zeolite and other inorganic carriers, and any mixture thereof. A suitable perfume microcapsule is described in WO2009/101593 .
  • Suitable silicones include polydimethylsiloxane and amino-silicones. Suitable silicones are described in WO05075616 .
  • the particles of the composition can be prepared by any suitable method. For example: spray-drying, agglomeration, extrusion and any combination thereof.
  • a suitable spray-drying process comprises the step of forming an aqueous slurry mixture, transferring it through at least one pump, preferably two pumps, to a pressure nozzle. Atomizing the aqueous slurry mixture into a spray-drying tower and drying the aqueous slurry mixture to form spray-dried particles.
  • the spray-drying tower is a counter-current spray-drying tower, although a co-current spray-drying tower may also be suitable.
  • the spray-dried powder is subjected to cooling, for example an air lift.
  • the spray-drying powder is subjected to particle size classification, for example a sieve, to obtain the desired particle size distribution.
  • the spray-dried powder has a particle size distribution such that weight average particle size is in the range of from 300 micrometers to 500 micrometers, and less than 10wt% of the spray-dried particles have a particle size greater than 2360 micrometers.
  • aqueous slurry mixture may be heated to elevated temperatures prior to atomization into the spray-drying tower, such as described in WO2009/158162 .
  • anionic surfactant such as linear alkyl benzene sulphonate
  • anionic surfactant such as linear alkyl benzene sulphonate
  • a gas such as air
  • a gas such as air
  • any inorganic ingredients such as sodium sulphate and sodium carbonate, if present in the aqueous slurry mixture, to be micronized to a small particle size such as described in WO2012/134969 .
  • a suitable agglomeration process comprises the step of contacting a detersive ingredient, such as a detersive surfactant, e.g. linear alkyl benzene sulphonate (LAS) and/or alkyl alkoxylated sulphate, with an inorganic material, such as sodium carbonate and/or silica, in a mixer.
  • a detersive ingredient such as a detersive surfactant, e.g. linear alkyl benzene sulphonate (LAS) and/or alkyl alkoxylated sulphate
  • LAS linear alkyl benzene sulphonate
  • an inorganic material such as sodium carbonate and/or silica
  • the agglomeration process may also be an in-situ neutralization agglomeration process wherein an acid precursor of a detersive surfactant, such as LAS, is contacted with an alkaline material, such as carbonate and/or sodium hydroxide, in a mixer, and wherein the acid precursor of a detersive surfactant is neutralized by the alkaline material to form a detersive surfactant during the agglomeration process.
  • a detersive surfactant such as LAS
  • Suitable detergent ingredients include polymers, chelants, bleach activators, silicones and any combination thereof.
  • the agglomeration process may be a high, medium or low shear agglomeration process, wherein a high shear, medium shear or low shear mixer is used accordingly.
  • the agglomeration process may be a multi-step agglomeration process wherein two or more mixers are used, such as a high shear mixer in combination with a medium or low shear mixer.
  • the agglomeration process can be a continuous process or a batch process.
  • the agglomerates may be subjected to a drying step, for example to a fluid bed drying step. It may also be preferred for the agglomerates to be subjected to a cooling step, for example a fluid bed cooling step.
  • the agglomerates are subjected to particle size classification, for example a fluid bed elutriation and/or a sieve, to obtain the desired particle size distribution.
  • particle size classification for example a fluid bed elutriation and/or a sieve
  • the agglomerates have a particle size distribution such that weight average particle size is in the range of from 300 micrometers to 800 micrometers, and less than 10wt% of the agglomerates have a particle size less than 150 micrometers and less than 10wt% of the agglomerates have a particle size greater than 1200 micrometers.
  • fines and over-sized agglomerates may be recycled back into the agglomeration process.
  • over-sized particles are subjected to a size reduction step, such as grinding, and recycled back into an appropriate place in the agglomeration process, such as the mixer.
  • fines are recycled back into an appropriate place in the agglomeration process, such as the mixer.
  • ingredients such as polymer and/or non-ionic detersive surfactant and/or perfume to be sprayed onto base detergent particles, such as spray-dried base detergent particles and/or agglomerated base detergent particles.
  • base detergent particles such as spray-dried base detergent particles and/or agglomerated base detergent particles.
  • this spray-on step is carried out in a tumbling drum mixer.
  • the method of laundering fabric comprises the step of contacting the solid composition to water to form a wash liquor, and laundering fabric in said wash liquor.
  • the wash liquor has a temperature of above 0°C to 90°C, or to 60°C, or to 40°C, or to 30°C, or to 20°C.
  • the fabric may be contacted to the water prior to, or after, or simultaneous with, contacting the solid composition with water.
  • the wash liquor is formed by contacting the laundry detergent to water in such an amount so that the concentration of laundry detergent composition in the wash liquor is from 0.2g/l to 20g/l, or from 0.5g/l to 10g/l, or to 5.0g/l.
  • the method of laundering fabric can be carried out in a front-loading automatic washing machine, top loading automatic washing machines, including high efficiency automatic washing machines, or suitable hand-wash vessels.
  • the wash liquor comprises 90 litres or less, or 60 litres or less, or 15 litres or less, or 10 litres or less of water.
  • 200g or less, or 150g or less, or 100g or less, or 50g or less of laundry detergent composition is contacted to water to form the wash liquor.
  • Solid free-flowing particulate laundry detergent composition illustrative examples:
  • Anionic detersive surfactant such as alkyl benzene sulphonate, alkyl ethoxylated sulphate and mixtures thereof
  • Non-ionic detersive surfactant such as alkyl ethoxylated alcohol
  • Cationic detersive surfactant such as quaternary ammonium compounds
  • Other detersive surfactant such as zwiterionic detersive surfactants, amphoteric surfactants and mixtures thereof
  • Carboxylate polymer such as co-polymers of maleic acid and acrylic acid and/or carboxylate polymers comprising ether moieties and sulfonate moieties
  • Polyethylene glycol polymer such as a polyethylene glycol polymer comprising polyviny
  • fluorescent brightener 260 or C.I. fluorescent brightener 351 from 0.1wt% to 0.4wt% Protease (such as Savinase, Savinase Ultra, Purafect, FN3, FN4 and any combination thereof) from 0.1wt% to 0.4wt% Amylase (such as Termamyl, Termamyl ultra, Natalase, Optisize, Stainzyme, Stainzyme Plus and any combination thereof) from 0wt% to 0.2wt% Cellulase (such as Carezyme and/or Celluclean) from 0wt% to 0.2wt% Lipase (such as Lipex, Lipolex, Lipoclean and any combination thereof) from 0wt% to 1wt% Other enzyme (such as xyloglucanase, cutinase, pectate lyase, mannanase, bleaching enzyme) from 0wt% to 2wt% Fabric softener (such as montmor
  • a low pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.22 Sodium sulphate 75.23 Citric acid 6.54 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 7.0.
  • the compositon had a reserve alkalinity to pH 7 at 1wt% dilution in deionized water at 20°C of 2.0.
  • Polymer 1 is PEI(600)-EO(20) polyethylene imine (PEI) in accordance with claim 1.
  • a high pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.22 Sodium sulphate 75.23 Citric acid 6.54 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 10.5.
  • the compositon had a reserve alkalinity to pH 7 at 1wt% dilution in deionized water at 20°C of 9.6.
  • Washing method The following method demonstrates the ability of Samples 1-6 to remove stains during the wash process (after a four cycle pretreatment step).
  • the wash solutions were then drained and the fabrics were subject to a 5 minute rinse step before being drained and spun dry.
  • the procedure was repeated a further three times to build-up a four-cycle history on the fabrics, alternating tergotometer pots after each cycle to avoid apparatus bias, before the fabrics were taken on to the stain removal step.
  • wash solutions were then drained and the fabrics were subject to a 5 minute rinse step before being drained and spun dry.
  • the washed fabrics were then dried in an airflow cabinet before being analysed to measure the stain removal from the fabric. This procedure wash repeated a further two times to give a total of three external replicates.
  • a low pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.48 Sodium sulphate 76.30 Citric acid 5.21 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 8.5.
  • a low pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.48 Sodium sulphate 76.30 Citric acid 5.21 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 8.5.
  • a high pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.48 Sodium sulphate 76.30 Citric acid 5.21 Water & miscellaneous to 100wt%
  • composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 9.7
  • Example 8 pH 8.4 formulation with 4% Sodium Carbonate without Polymer 1 (Comparititve Example)
  • a low pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.48 Sodium sulphate 76.30 Citric acid 5.21 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 8.5.
  • a low pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.2 Sodium sulphate 74.0 Citric acid 6.5 Water & miscellaneous to 100wt%
  • the composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 8.5.
  • a high pH base powder was prepared by mixing the ingredients together.
  • the composition of the base powder was: Ingredient Amount (wt% of base powder) Alkyl benzene sulphonate anionic detersive surfactant 18.48 Sodium sulphate 76.30 Citric acid 5.21 Water & miscellaneous to 100wt%
  • composition had an equilibrium pH at 1wt% dilution in deionized water at 20°C of 9.7
  • Washing method The following method demonstrates the ability of Samples 5-11 to remove stains during the wash process.
  • the volume of each pot was 1 L.
  • the wash temperature was set to 20 °C. Throughout the procedure, 0.05 gpg water was used.
  • the products were agitated for 2 minutes before addition of fabrics (2 internal replicates of each stain (Grass and makeup on knitted cotton, Equest), and 15 g of WfK SBL 2004 soil sheets per pot with additional knitted cotton ballast to make the total fabric weight up to 35 g).
  • the wash solution was agitated for 20 minutes.
  • the wash solutions were then drained and the fabrics were subject to a 5 minute rinse step before being drained and spun dry.
  • the washed fabrics were then dried in an airflow cabinet before being analysed to measure the stain removal from the fabric. This procedure was repeated a further three times to give a total of four external replicates.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
EP17194533.0A 2016-10-03 2017-10-03 Composition de détergent pour lessive Active EP3301158B1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10501711B2 (en) 2017-06-15 2019-12-10 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition
US10550357B2 (en) 2017-06-15 2020-02-04 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition
US11332701B2 (en) 2017-06-15 2022-05-17 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition

Citations (10)

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Publication number Priority date Publication date Assignee Title
WO1991017232A1 (fr) * 1990-05-08 1991-11-14 The Procter & Gamble Company Compositions de detergents de blanchissage granulaire a faible ph contenant de l'aluminosilicate, de l'acide citrique ainsi que des adjuvants de carbonate
WO1995012658A1 (fr) * 1993-11-03 1995-05-11 The Procter & Gamble Company Detergent pour textiles contenant un percarbonate enrobe et un agent d'acidification destine a obtenir une reduction prolongee du ph
WO2000018856A1 (fr) * 1998-09-25 2000-04-06 The Procter & Gamble Company Granules detergents
WO2003038028A2 (fr) * 2001-10-30 2003-05-08 Henkel Kommanditgesellschaft Auf Aktien Detergent ou nettoyant dispersible sensiblement exempt de sediments
WO2007144857A1 (fr) * 2006-06-16 2007-12-21 The Procter & Gamble Company Compositions de détergent
US20110312869A1 (en) * 2007-11-09 2011-12-22 James Lee Danziger Cleaning compositions comprising a multi-polymer system comprising at least one alkoxylated grease cleaning polymer
WO2013036662A1 (fr) * 2011-09-06 2013-03-14 The Sun Products Corporation Compositions solides et liquides de traitement de textile
WO2013184981A2 (fr) * 2012-06-08 2013-12-12 The Procter & Gamble Company Particules esthétiques visuellement contrastantes possédant une solubilité dans l'eau accrue, particulièrement utiles pour une combinaison avec des compositions pulvérulentes ou granulaires
WO2014190129A1 (fr) * 2013-05-24 2014-11-27 The Procter & Gamble Company Composition de détergent à faible ph
WO2015169851A1 (fr) * 2014-05-09 2015-11-12 Basf Se Granulé d'acylhydrazone doté d'un revêtement à deux couches destiné à être utilisé dans des détergents pour le linge

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017232A1 (fr) * 1990-05-08 1991-11-14 The Procter & Gamble Company Compositions de detergents de blanchissage granulaire a faible ph contenant de l'aluminosilicate, de l'acide citrique ainsi que des adjuvants de carbonate
WO1995012658A1 (fr) * 1993-11-03 1995-05-11 The Procter & Gamble Company Detergent pour textiles contenant un percarbonate enrobe et un agent d'acidification destine a obtenir une reduction prolongee du ph
WO2000018856A1 (fr) * 1998-09-25 2000-04-06 The Procter & Gamble Company Granules detergents
WO2003038028A2 (fr) * 2001-10-30 2003-05-08 Henkel Kommanditgesellschaft Auf Aktien Detergent ou nettoyant dispersible sensiblement exempt de sediments
WO2007144857A1 (fr) * 2006-06-16 2007-12-21 The Procter & Gamble Company Compositions de détergent
US20110312869A1 (en) * 2007-11-09 2011-12-22 James Lee Danziger Cleaning compositions comprising a multi-polymer system comprising at least one alkoxylated grease cleaning polymer
WO2013036662A1 (fr) * 2011-09-06 2013-03-14 The Sun Products Corporation Compositions solides et liquides de traitement de textile
WO2013184981A2 (fr) * 2012-06-08 2013-12-12 The Procter & Gamble Company Particules esthétiques visuellement contrastantes possédant une solubilité dans l'eau accrue, particulièrement utiles pour une combinaison avec des compositions pulvérulentes ou granulaires
WO2014190129A1 (fr) * 2013-05-24 2014-11-27 The Procter & Gamble Company Composition de détergent à faible ph
WO2015169851A1 (fr) * 2014-05-09 2015-11-12 Basf Se Granulé d'acylhydrazone doté d'un revêtement à deux couches destiné à être utilisé dans des détergents pour le linge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10501711B2 (en) 2017-06-15 2019-12-10 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition
US10550357B2 (en) 2017-06-15 2020-02-04 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition
US11332701B2 (en) 2017-06-15 2022-05-17 The Procter & Gamble Company Water-soluble unit dose article comprising a solid laundry detergent composition

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