Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0026—Low foaming or foam regulating compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/37—Mixtures of compounds all of which are anionic
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/143—Sulfonic acid esters
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/146—Sulfuric acid esters
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene ethers

Definitions

• Suitable sulphate surfactant includes alkyl sulphate surfactant, preferably Cs to C22 alkyl sulphate or predominantly C12 alkyl sulphate.
• Conventional primary alkyl sulphate surfactants have the general formula: R"OSOs'M + wherein R" is typically a Cs to C20 alkyl group, which may be straight chain or branched chain, and M is a water-solubilizing cation.
• R" is a C10 to Cis alkyl group, C10 to C15 alkyl group, and M is alkali metal, more specifically R" is C12 to C14 alkyl and M is sodium.
• the anionic surfactant includes 0 wt.% to 10 wt.% alkyl sulfate surfactant, preferably 0.2 wt.% to 5 wt.% alkyl sulfate surfactant, preferably the alkyl sulfate surfactant is a primary alkyl sulphate surfactant (PAS).
• the anionic surfactant may also preferably include from 0 wt.% to 10 wt.% MES, more preferably 0 wt.% to 5 wt.% MES.
• the detergent composition of the present invention includes from 3 wt.% to 50 wt.% of primary anionic detersive surfactant selected from sulphate surfactant, sulphonate surfactant, alkyl ether sulphate surfactant or mixtures thereof.
• the ratio of the C3 to C10 alkyl amine salt of C9 to C15 alkyl benzene sulphonate cosurfactant to the primary anionic detersive surfactant is in a ratio from 1 :1 to 1 :200, preferably 1 :1 to 1 :160, still preferably from 1 :1 to 1 :100, still preferably the ratio from 1 :5 to 1 :200, further preferably the ratio is from 1 :5 to 1 :160, still more preferably from 1 :5 to 1 :100.
• the total amount of primary anionic detersive surfactant is greater than the C3 to C10 alkyl amine salt of C9 to C15 alkyl benzene sulphonate cosurfactant present in the composition.
• the solid laundry detergent composition includes a C3 to C10 alkyl amine salt of C9 to C15 alkyl benzene sulphonate.
• the cosurfactant is a C3 to C10 alkyl amine salt of a linear or branched C9 to C15 alkyl benzene sulphonate.
• the alkyl amine group includes a C 3 to C 10 alkyl group, preferably the hydroxyl alkyl amine group is selected from triethanolamine (TEA) or monoisopropanol amine (MIPA).
• TAA triethanolamine
• MIPA monoisopropanol amine
• the alkyl amine salt of alkyl benzene sulphonate is a C 3 to C 10 alkyl amine salt of C 9 to C 15 alkyl benzene sulphonate. More preferably the alkyl amine salt of alkyl benzene sulphonate cosurfactant is MIPA- LAS.
• the co-surfactant may include a mixture of other alkyl amine salt of C 10 to C 18 sulphate surfactant or alkyl amine salt of C 10 to C 18 ether sulphate surfactant along with alkyl amine salt of alkyl benzene sulphonate.
• the solid detergent composition according to the present invention comprises from 0.05 wt.% to 5 wt.% C 3 to C 10 amine salt of C 9 to C 15 alkyl benzene sulphonate cosurfactant.
• the solid detergent composition comprises at least 0.8 wt.%, preferably at least 0.1 wt.%, still preferably at least 0.15 wt.% still more preferably 0.25 wt.% and most preferably at least 0.5 wt.%, but typically not more than 4 w.t%, still preferably not more than 3 wt.%, still further preferably not more than 2 wt.% and most preferably not more than 1 wt.%.
• the solid laundry detergent composition of the present invention may include other cosurfactant selected from the cationic polysaccharide, siloxane comprising polyoxyalkylene group, amide surfactant or mixtures thereof.
• Cationic polysaccharide cosurfactant is preferably a cationic polysaccharide.
• polysaccharide are polymer carbohydrate molecules composed of long chains of monosaccharide units bound together by glycosidic linkages.
• a "cationic polysaccharide” is understood to be a polysaccharide or a derivate of a polysaccharide comprising a cationic group.
• the cationic group is preferably selected from ammonium group, quaternary ammonium group, a sulfonium group, a phosphonium group a transitional metal or any other positively charged functional group.
• a preferred cationic group is a quaternary ammonium group.
• the polysaccharide is preferably selected from the group consisting of fructan, dextran, maltodextrin, or mixtures thereof. More preferably the polysaccharide is a fructan.
• A represents a straight-chain or branched C2 to Ce alkylene group which is optionally preceded by a carbonyl group or optionally interrupted by one or two oxygen atoms or imino or alkylimino groups and optionally substituted by one or two hydroxyl groups or amine groups or a carboxyl or carbamoyl group; or “A” represents the residue of a monosaccharide unit;
• R 1 and R 2 each represent hydrogen methyl, carboxymethyl, phosphonomethyl, ethyl, hydroxyethyl, propyl, isopropl, allyl, hydroxypropyl or dihydroxypropyl or, together with the nitrogen atom, form a pyrrolidino, piperidino, piperazino, N’-alkylpiperazino, N’- (hydroxyalkyl)piperazino, N’- (aminoalkyl)piperazino, morpholino or hexamethyleneamino group,
• R 3 represents hydrogen, Ci to C18 alkyl, C3 to C18 alkenyl, alkynyl or cycloalkyl, C4 to C18 cycloalkyl-alkyl or C7 to C18 aralkyl or a group of the formula -A-Fruc, where “A” has the above-mentioned meaning and True” represents a polysaccharide residue bonded via oxygen; and
• R 4 represents hydrogen, methyl, ethyl, hydroxyethyl, hydroxypropyl or dihydroxypropyl; where the amine nitrogen atoms can be uncharged or protonated or quarternised with methyl, ethyl, hydroxyethyl, hydroxypropyl or dihydroxypropyl.
• the polysaccharide is selected from the group consisting of sucrose, trehalose, lactose, fructan, dextran, maltodextrin, amylose or mixtures thereof. More preferably the polysaccharide is selected from the group consisting of fructan, dextran, maltodextrin or mixtures thereof. Still more preferably the polysaccharide is a fructan.
• Each polysaccharide has on an average at least 0.1 cationic group per monosaccharide unit and where the general formula of the cationic group is
• the cationic polysaccharide has a weight average molecular weight lower than 30000 g/mol and more preferably a weight average molecular weight ranging from 500 g/mol and 30000 g/mol. More preferably the weight average molecular weight of the cationic polysaccharide ranges between 1000 g/mol and 15000 g/mol and more preferably from 2000 g/mol and 5000 g/mol.
• the "weight average molecular weight” is defined by the following formula: wherein M/ is the molecular weight of a chain; N, is the number of chains of that molecular weight.
• the average molecular weight may be calculated based on the average molecular weight of the cationic derivative of fructan, preferably inulin, as determined by a chromatographic method such as HPAEC-PAD (high-performance anion exchange chromatography coupled to pulsed amperometric detection) before quaternization, and the weight increase based on the degree of substitution determined after quaternization.
• HPAEC-PAD high-performance anion exchange chromatography coupled to pulsed amperometric detection
• the cationic polysaccharide has a degree of substitution ranging from 0.01 and 3, more preferably 0.05 to 2.5. More preferably, the degree of substitution of the cationic polysaccharide ranges from 0.1 and 2.5, more preferably from 0.1 and 2, still preferably from 0.15 and 2, still more preferably from 0.15 and 1.5, furthermore preferably from 0.2 and 0.9 or most preferably from 0.30 and 0.90.
• the "degree of substitution” is defined as the cationic group content per monosaccharide unit. The degree of substitution may be determined based on the nitrogen content calculated using Kjeldahl method.
• the solubility of the cationic polysaccharide in water at a temperature of 25 °C is preferably not less than 20 wt.%, still preferably more than 30 wt.%, more preferably more than 50 wt.%, further preferably more than 80 wt.%.
• solubility is defined as the maximum percentage (by weight) of a substance that will dissolve in a unit of volume of water at a certain temperature.
• Preferred cationic polysaccharide have an average molecular weight ranging between 1000 g/mol and 15000 g/mol and a degree of substitution ranging between 0.15 and 2. Even more preferred cationic polysaccharide have an average molecular weight ranging between 2000 g/mol and 5000 g/mol and a degree of substitution ranging between 0.30 and 0.90.
• the solubility of the cationic polysaccharide in water at a temperature of 25°C is preferably higher than 20 wt.% and more preferably higher than 40 wt.%.
• the polysaccharide of the invention is a fructan.
• the term "fructan” is understood to include all polysaccharides which have a multiplicity of anhydrofructose units.
• the fructan can have a polydisperse chain length distribution and can be straight-chain or branched.
• the fructan includes both products obtained directly from a vegetable or other source and products in which the average chain length has been modified (increased or reduced) by fractionation, enzymatic synthesis, or hydrolysis.
• the preferred average chain length is from 2 to 20 monosaccharide units.
• the fructan as used according to the invention contains predominantly p-2,1 bonds, as in inulin (see also Mensink et al., Carbohydrate Polymers 130 (2015) 405-419).
• a preferred group of fructan comprises inulin.
• the term "inulin” is understood to comprise polysaccharides comprising P (2,1) linked fructofuranose units and a glucopyranose unit.
• a preferred cationic polysaccharide additional cosurfactant is a cationic inulin.
• the degree of polymerization of cationic inulin polysaccharide additional cosurfactant ranges preferably ranges from 2 and 60.
• the cationic inulin has a degree of substitution ranging from 0.01 to 3. More preferably, the degree of substitution of the cationic inulin ranges from 0.05 to 2.5, for example from 0.1 to 2, from 0.15 to 2, from 0.15 to 1.5, from 0.2 to 0.9 or from 0.30 to 1.3. More preferably the cationic inulin has a degree of substitution in the range from 0.55 to 0.85, preferably from 0.6 to 0.8, more preferably from 0.65 to 0.75. Also, preferably the cationic inulin has a weight average molecular weight ranging from 3000 to 5000 g/mol, preferably from 3500 to 4500 g/mol, most preferably from 3800 to 4200 g/mol.
• Quatin® Commercially available cationic inulin is known and sold under the trademark Quatin® (a trademark of Cosun Biobased Products).
• Quatin®350 Commercially available cationic inulin is known and sold under the trademark Quatin®350, Quatin® 680, Quatin® 1280 having INCI name as hydroxypropyl trimonium inulin.
• the solid detergent composition according to the present invention comprises from 0.05 wt.% to 5 wt.% cationic polysaccharide cosurfactant.
• the solid detergent composition comprises at least 0.8 wt.%, preferably at least 0.1 wt.%, still preferably at least 0.15 wt.% still more preferably 0.25 wt.% and most preferably at least 0.5 wt.%, but typically not more than 4 w.t%, still preferably not more than 3 wt.%, still further preferably not more than 2 wt.% and most preferably not more than 1 wt.%.
• Siloxane comprising a polyoxyalkylene group:
• R 1 is same or different and is selected from an alkyl, alkenyl or aryl alkyl group from 1 to 20 carbon atom, or alkyl, alkenyl or aryl alkyl group from 1 to 20 carbon atom comprising a functional group, or mixtures thereof,
• Y is a polyoxyalkylene group having 19 to 30 oxyalkylene group
• R 2 and R 3 are same or different and is selected from an alkyl, alkenyl or aryl alkyl group having from 1 to 20 carbon atom, or alkyl, alkenyl or aryl alkyl group having from 1 to 20 carbon atom comprising a functional group, wherein, a is 0 or 1 , b is 0 or 1 or 2, p is 0 to 20 preferably 0, 1 , 2 or 3, j, k, are independent of each other and is 0 or an integer from 1 to 50 where either j or k or both is at least 1 and with the proviso that the siloxane contains at least one Y radical per molecule.
• siloxane compound when a is 1 , j is 2, and k is 0 then p is an integer from 1 to 30. In yet another preferred siloxane compound, when a is 1 , j is 2 and k is 0 then p is 0.
• Y represents a polyoxyalkylene group having from 20 to 30 oxyalkylene group, more preferably from 22 to 30 oxyalkylene group, even more preferably from 23 to 30 oxyalkylene group, still more preferably from 24 to 30 oxyalkylene group, still more preferably from 24 to 28 oxyalkylene group and yet more preferably from 24 to 26 oxyalkylene group.
• the polyoxyalkylene group is polyoxyethylene group.
• R 1 is same or different and is selected from an alkyl, alkenyl or aryl alkyl group from 1 to 20 carbon atom, or an alkyl, alkenyl or aryl alkyl group from 1 to 20 carbon atom comprising a functional group selected from alkoxy, hydroxyl group or combinations thereof, or mixtures thereof, where R 2 and R 3 are same or different and is selected from an alkyl, alkenyl or aryl alkyl group having from 1 to 20 carbon atom, or alkyl, alkenyl or aryl alkyl group having from 1 to 20 carbon atom comprising a functional group
• R 4 is same or different and is a C2 alkylene radical.
• p is 0, 1 , 2 or 3
• p is 0 or an integer from 1 to 50, with the proviso that the siloxane contains at least one
• the siloxane cosurfactant may be used along with an alkyl ester of fatty acid.
• the alkyl ester of fatty acid is preferably selected from but not limited to fatty acid alkyl or alkylene esters based on Ce to C22 fatty acids and most preferably is a methyl ester of a Ce to C22 fatty acid.
• Other suitable alkyl ester of fatty acid may be selected from esters of linear Ce to C22 fatty acids with linear or branched Ce to C22 fatty alcohols or esters of branched Ce to C13 carboxylic acids with linear or branched Ce to C22 fatty alcohols.
• the additional cosurfactant is preferably an amide surfactant or salts thereof.
• the amide surfactant has a general formula (III) wherein R 2 is linear or branched, saturated or unsaturated, alkyl group or alkenyl group having 16 carbon atom or less, preferably R 2 is a 10 to 14 carbon atom alkyl group or alkenyl group.
• R 1 and Z are independently selected from H, hydroxy, methyl, ethyl, propyl, isopropyl, butyl or 2-hydroxyl ethyl and where at least one of R 1 or Z is a 2-hydroxyl ethyl. More preferably the Z is an alkyl mono hydroxyl group.
• a preferred example of the amide surfactant has the general formula (III) wherein R 2 is linear or branched, saturated or unsaturated, alkyl group or alkenyl group having 16 carbon atom or less, preferably R 2 is a 10 to 14 carbon atom alkyl group or alkeny
• the ratio of the additional amide cosurfactant to the primary anionic detersive surfactant in the composition is preferably in a ratio from 1 :1 to 1 :200, more preferably the ratio is from 1 :1 to 1 :160 still preferably the ratio is from 1 :1 to 1 :100, more preferably 1 :10 to 1 :80.
• Suitable functionalized siloxane polymers include materials selected from the group consisting of aminosilicones, amidosilicones, silicone polyethers, silicone-urethane polymers, quaternary ABn silicones, amino ABn silicones, and combinations thereof.
• the silicone compound is an organopolysiloxane preferably having an amino-functional or a carboxyl-functional organic group.
• Suitable organosilicone may be linear, branched, or cross linked.
• the silicone compound may belong to the organosiloxane class of amino amino-functional organopolysiloxane, carboxy-functional organopolysiloxane, polydimethyl siloxane, silicone polyether or mixtures thereof.
• the silicone compound may also be selected from a reactive siloxane which is a silicone aminoalcohol.
• Yet another preferred silicone compound includes a reactive siloxane which is an aminosilicone.
• Another preferred foam suppressing agent is a modified amino-functional organopolysilioxane have the general formula (V) together (V) where R 2 is the same or different and is a monovalent C 1 to C 18 hydrocarbyl radical, R 1 is as defined above for (IVa) Q is as defined above for (IVa), k is 0 or 1, m is 0 or an integer from 1 to 1000, n is 0 or an integer from 1 to 50, with the proviso that the organopolysiloxanes contain at least one Q radical per molecule.
• amino-functional organopolysiloxanes of the formula (V) are amino-functional polydimethylsiloxanes terminated by trimethylsiloxane units and amino-functional polydimethylsiloxanes terminated by hydroxydimethylsiloxane units and C 1 to C 3 alkoxydimethylsiloxane units.
• A is an amino radical of the formula or a protonated amino form and/or acylated amino form of the amino radical A, preferably A is –(CH 2 ) 3 NH 2 and – (CH 2 ) 3 NH(CH 2 ) 2 NH 2 ;
• X is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms or a polyoxyalkylene group G of the formula , preferably G is – (CH 2 ) 3 –(OC 2 H 4 ) y –O–R 6
• R 1 is a C 1 to C 10 alkylene radical, preferably a radical of the formula -CH 2 CH 2 CH 2 -
• R 2 is hydrogen or a C 1 to C 4 alkyl radical, preferably hydrogen
• R 3 is a C 1 to C 10 alkylene radical, preferably a radical of the formula -CH 2 CH 2 -
• R 4 is a
• the modified amino silicone organopolysiloxane are generally a fluid and therefore need a carrier filler selected from the group comprising sodium carbonate, sodium sulphate, aluminum silicate, potassium carbonate, potassium sulphate, sodium bicarbonate, potassium bicarbonate and zeolites to form a free-flowing powder form.
• Still another preferred type of modified amino silicone organopolysiloxane useful in the present invention is the one having the formula (VII) where: Y is an amino group of the general formula or the protonated or acylated amino forms of the amino group Y, R 1 is the same or different and is a monovalent C 1 to C 6 alkyl radical or a C 1 to C 6 alkoxy radical or a hydroxyl radical, R is a monovalent C 1 to C 6 alkyl radical, R 2 is a monovalent C 2 to C 6 alkyl radical, R 3 is a C 1 to C 10 alkylene radical, R 4 is a hydrogen or a C 1 to C 4 alkyl radical, R 5 and R 6 independently represent hydrogen or a C 1 to C 4 alkyl radical, j is an integer from 0 to 3, k is an integer from 0 to 3, z is an integer from 1 to 500, n is an integer from 1 to 70, m is an integer from 1 to 10, v is an integer from 0 to 15, x
• silicone oils examples include silicone oils 47v 100, 47v 5000 and 47v 12500 available from Rhone Poulenc; Silcolapse 430 and Silicone EP 6508 available from ICI; Rhodosil 454 available from Rhone Poulenc; and Silkonol AK 100 available from Wacker.
• the silicone compound is an organosilicones selected from polydimethylsiloxane, dimethicone, dimethiconol, dimethicone crosspolymer, phenyl trimethicone, alkyl dimethicone, lauryl dimethicone, stearyl dimethicone and phenyl dimethicone, octyl amidomethicone, cetyl amidomethicone. Still preferably the silicone compound is selected from polydimethylsiloxane, octyl amidomethicone, cetyl amidomethicone and mixtures thereof.
• the composition according to the present invention has a pH of from 8 to 13, preferably from 8.5 to 12, more preferably 8.5 to 11 when measured at 1 wt.% dilution in de-ionised water at 25°C.
• the sodium carbonate builder provides the desired pH to the composition.
• the composition of the present invention preferably also includes further alkaline source which is selected from bicarbonates and semi-bicarbonates.
• the composition may preferably include a buffer.
• Anti-redeposition polymers are designed to suspend or disperse soil.
• antiredeposition polymers are polyethylene glycol polymers, polycarboxylate polymers, polyethyleneimine polymers or mixtures thereof.
• Such polymers are available from BASF under the trade name Sokalan®CP5 (neutralised form) and Sokalan®CP45 (acidic form).
• Suitable antiredeposition polymers are ethoxylated and or propoxylated polyethylene imine or polycarboxylate materials, for example, acrylic acid-based homo or copolymers available under the trademark ACLISOL from Dow Chemical, Alcosperse from Akzonobel or Sokolan from BASF.
• the cleaning composition is preferably substantially free of phosphate based sequestering polymers.
• substantially free it is meant herein that no phosphate based sequestering polymers is deliberately added.
• suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, xyloglucanase, phospholipases, esterases, cutinases, pectinases, mannanases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, G-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
• Suitable commercially available 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®, Maxaca®l, Maxapem®, Properase®, Purafect®, Purafect Prime®, Purafect Ox®, FN3®, FN4®, 10 Excellase® and Purafect OXP® by Genencor International, those sold under the tradename Opticlean® and Optimase by Solvay Enzymes.
• the enzyme-containing compositions described herein may optionally comprise from 0.001 % to 10%, by weight of the composition, of an enzyme stabilizing system.
• the enzyme stabilizing system can be any stabilizing system which is compatible with the detersive enzyme.
• Such stabilizing systems can, for example, comprise calcium ion, boric acid, propylene glycol, short chain carboxylic acids, boronic acids, chlorine bleach scavengers and mixtures thereof.
• Hueing agents may be selected from any known chemical class of dye, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo), including 30 premetallized azo, benzodifurane and benzodifuranone, carotenoid, coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoids, methane, naphthalimides, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazoles, stilbene, styryl, triarylmethane, triphenylmethane, xanthenes and mixtures thereof.
• Suitable fabric hueing agents include dyes, dye-clay conjugates, and organic and inorganic pigments.
• the detergent composition according to the present invention may include additional surfactants selected from but not limited to non-ionic surfactant, amphoteric surfactant cationic surfactant, zwitterionic surfactant, or mixtures thereof.
• Non-limiting examples of nonionic surfactants include: C12 to C18 alkyl ethoxylates, Ce to C12 alkyl phenol alkoxylates wherein the alkoxylate units are a mixture of ethyleneoxy and propyleneoxy units; C12 to C18 alcohol and Ce to C12 alkyl phenol condensates with ethylene oxide/propylene oxide block alkyl polyamine ethoxylates alkylpolysaccharides and ether capped poly(oxyalkylated) alcohol surfactants.
• Non-limiting examples of zwitterionic or ampholytic surfactants include: derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds.
• the solid laundry detergent composition includes fillers such as sodium sulphate, sodium chloride, calcite, dolomite or mixtures thereof.
• the method includes the step of preparing an aqueous wash liquor of the detergent composition in a liquid.
• the wash liquor is preferably prepared by dissolving the detergent composition in water.
• the wash liquor may be preferably cold water or water at ambient temperature conditions.
• the foam profile of the present invention is not dependent on the temperature of the wash liquor.
• washing includes, but is not limited to, scrubbing, wiping and mechanical agitation.
• a third aspect of the present invention is the use of a primary anionic detersive surfactant, a foam suppressing agent and a C3 to C10 alkyl amine salt of C9 to C15 alkyl benzene sulphonate cosurfactant in a detergent composition to provide good lather generation in the wash liquor during the main wash stage and collapse of lather during rinse stage wherein the rinse stage requires less than 3 rinses.
• Example 1 Four (4) different solid laundry detergent compositions according to the present invention were prepared by spray drying as shown in table 1.
• compositions as provided in table 1 were found to give good foam profile in the main wash and quick reduction of the foam in a single rinse at the rinse stage.

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