Fabric Care Composition

Abstract

A fabric care composition is provided comprising water, a detersive surfactant, a fabric softening silicone, and a deposition aid polymer, the deposition aid polymer being a dextran polymer functionalized with quaternary ammonium moieties, wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to fabrics.

Description

[Technical Field]

[0001] The present invention relates to fabric care compositions. In particular, the present invention relates to fabric care compositions comprising water, a detersive surfactant, a fabric softening silicone, and a deposition aid polymer, the deposition aid polymer being a dextran polymer functionalized with quaternary ammonium moieties, wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to fabrics.

[0002] The use of cationic carbohydrate polymers in laundry detergents is known, for example, in U.S. Patent No. 6,833,347, but this reference does not suggest the use of the modified polymers described herein.

[0003] Modified carbohydrate polymers having quaternary ammonium groups have been disclosed for use in fabric care by Eldredge et al. in U.S. Patent Application Publication No. 20170335242. Eldredge et al. 8~22 1. A fabric care composition comprising a modified carbohydrate polymer having quaternary ammonium groups with alkyl or alkenyl groups, wherein the modified carbohydrate polymer has a weight average molecular weight of at least 500,000, and at least 20% by weight of the quaternary ammonium groups on at least one modified carbohydrate polymer are at least one C 8~22 The present invention discloses fabric care compositions having alkyl or alkenyl groups of the formula:

[0004] Nevertheless, there remains a continuing need for fabric care compositions that have a desirable balance of performance properties, particularly softening and anti-redeposition.

[0005] The present invention provides a fabric care composition comprising water, a detersive surfactant, a fabric softening silicone, and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer functionalized with quaternary ammonium moieties, wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to fabrics.

[0006] The present invention provides a method of treating laundry comprising providing laundry, selecting a fabric care composition according to the present invention, providing bath water, and applying the bath water and the fabric care composition to the laundry to provide treated laundry, wherein a fabric softening silicone is associated with the treated laundry. DETAILED DESCRIPTION OF THE INVENTION

[0007] Fabric care compositions comprising a fabric softening silicone in combination with a deposition aid polymer comprising a dextran polymer functionalized with quaternary ammonium moieties have been found to provide a surprisingly favorable balance of softening and anti-redeposition.

[0008] Unless otherwise indicated, ratios, percentages, parts, etc. are by weight. Weight percentages (or wt %) in a composition are percentages of dry weight, i.e., excluding any water that may be present in the composition.

[0009] As used herein, unless otherwise indicated, the terms "weight average molecular weight" and "Mw" are used interchangeably to refer to weight average molecular weight measured in the conventional manner using gel permeation chromatography (GPC) and conventional standards such as polyethylene glycol standards. The GPC technique is described in detail in "Modem Size Exclusion Chromatography," W.W. Yau, J.J. Kirkland, D.D.Bly; Wiley-Interscience, 1979, and in "A Guide to Materials Characterization and Chemical Analysis," J.P. Sibilia; VCH, 1988, pp. 81-84. Weight average molecular weights are reported herein in units of Daltons.

[0010] Preferably, the fabric care composition of the present invention comprises water (preferably 10 to 94.9 wt. % (more preferably 25 to 94 wt. %, even more preferably 40 to 85 wt. %, and most preferably 50 to 75 wt. %) water, based on the weight of the fabric care composition), a detersive surfactant (preferably 5 to 89.9 wt. % (more preferably 7.5 to 75 wt. %, even more preferably 10 to 60 wt. %, and most preferably 15 to 30 wt. %) detersive surfactant, based on the weight of the fabric care composition), a fabric softening silicone (preferably 0.05 to 10 wt. % (more preferably 0.1 to 5 wt. %, and most preferably 0.1 to 3 wt. %) fabric softening silicone, based on the weight of the fabric care composition (preferably, the fabric softening silicone is selected from the group consisting of nitrogen-free silicone polymers, anionic silicone polymers, and mixtures thereof), and a deposition aid polymer (preferably 0.05 to 10 wt. % (more preferably, 0.1 to 5 wt. %, and most preferably, 0.1 to 3 wt. %) fabric softening silicone, based on the weight of the fabric care composition) (preferably, the fabric softening silicone is selected from the group consisting of nitrogen-free silicone polymers, anionic silicone polymers, and mixtures thereof), and a deposition aid polymer (preferably 0.05 to 10 wt. % (more preferably, 0.1 to 5 wt. %, and most preferably, 0.1 to 3 wt. %) fabric softening silicone, based on the weight of the fabric care composition). and a deposition aid polymer (preferably, the deposition aid polymer has a concentration of 0.5 wt. % or more (preferably, 0.5 to 5.0 wt. %, corrected for ash and volatile matter), corrected for ash and volatile matter, and is a dextran polymer (preferably, a branched dextran polymer) functionalized with a quaternary ammonium moiety. %, more preferably 0.5-4.0 wt.%, even more preferably 0.75-2.5 wt.%, and most preferably 1-2 wt.%, wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to the fabric (preferably the fabric is selected from the group consisting of cotton interlock, cotton, polycotton blend, and cotton terry, more preferably the fabric contains cotton, and most preferably the fabric is cotton).

[0011] Preferably, the fabric care compositions of the present invention are liquid formulations. More preferably, the fabric care compositions of the present invention are aqueous liquid formulations.

[0012] Preferably, the fabric care compositions of the present invention comprise water. More preferably, the fabric care compositions of the present invention comprise 10 to 94.9 wt. % (more preferably, 25 to 94 wt. %, even more preferably, 40 to 85 wt. %, and most preferably, 50 to 75 wt. %) water, based on the weight of the fabric care composition. Even more preferably, the fabric care compositions of the present invention comprise 10 to 94.9 wt. % (more preferably, 25 to 94 wt. %, even more preferably, 40 to 85 wt. %, and most preferably, 50 to 75 wt. %) water, based on the weight of the fabric care composition, wherein the water is at least one of distilled water and deionized water. Most preferably, the fabric care compositions of the present invention comprise 10 to 94.9 wt. % (more preferably, 25 to 94 wt. %, even more preferably, 40 to 85 wt. %, and most preferably, 50 to 75 wt. %) water, based on the weight of the fabric care composition, wherein the water is distilled and deionized.

[0013] Preferably, the fabric care compositions of the present invention comprise a cleansing surfactant. More preferably, the fabric care compositions of the present invention comprise 5 to 89.9 wt. % (preferably, 7.5 to 75 wt. %, more preferably, 10 to 60 wt. %, and most preferably, 15 to 30 wt. %) of a cleansing surfactant, based on the weight of the fabric care composition. Even more preferably, the fabric care compositions of the present invention comprise 5 to 89.9 wt. % (preferably, 7.5 to 75 wt. %, more preferably, 10 to 60 wt. %, and most preferably, 15 to 30 wt. %) of a cleansing surfactant, based on the weight of the fabric care composition, wherein the cleansing surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, and mixtures thereof. Even more preferably, the fabric care compositions of the present invention comprise 5 to 89.9 wt.% (preferably, 7.5 to 75 wt.%, more preferably, 10 to 60 wt.%, and most preferably, 15 to 30 wt.%) of a cleansing surfactant, based on the weight of the fabric care composition, wherein the cleansing surfactant is selected from the group consisting of a mixture comprising an anionic surfactant and a nonionic surfactant. Most preferably, the fabric care compositions of the present invention comprise 5 to 89.9 wt.% (preferably, 7.5 to 75 wt.%, more preferably, 10 to 60 wt.%, and most preferably, 15 to 30 wt.%) of a cleansing surfactant, based on the weight of the fabric care composition, wherein the cleansing surfactant comprises a mixture of linear alkyl benzene sulfonate, sodium lauryl ethoxy sulfate, and nonionic alcohol ethoxylate.

[0014] Anionic surfactants include alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, alkoxylated alcohols, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, α-sulfocarboxylates, esters of α-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, sulfates of fatty acids, sulfonates of fatty acids, sulfonates of fatty acid esters, alkyl phenols, alkylphenol polyethoxy ether sulfates, 2-acryloxy-alkane-1-sulfonic acids, 2-acryloxy-alkane-1-sulfonates, β-alkyloxyalkane sulfonic acids, β-alkyloxyalkane sulfonates, amine oxides, and mixtures thereof. Preferred anionic surfactants are C 8~20 Alkylbenzene sulfate, C 8~20 Alkylbenzene sulfonic acid, C 8~20 Alkylbenzene sulfonate, paraffin sulfonic acid, paraffin sulfonate, α-olefin sulfonic acid, α-olefin sulfonate, alkoxylated alcohol, C 8~20 The more preferred anionic surfactants include alkylphenols, amine oxides, sulfonates of fatty acids, sulfonates of fatty acid esters, and mixtures thereof. 12~16 Alkylbenzene sulfonic acid, C 12~16 Alkylbenzene sulfonate, C 12~18 Paraffin sulfonic acid, C 12~18 Paraffin sulfonates, and mixtures thereof.

[0015] Nonionic surfactants include secondary alcohol ethoxylates, ethoxylated 2-ethylhexanol, ethoxylated seed oil, butanol-capped ethoxylated 2-ethylhexanol, and mixtures thereof. Preferred nonionic surfactants include secondary alcohol ethoxylates.

[0016] The cationic surfactants include quaternary surfactant compounds. Preferred cationic surfactants include quaternary surfactant compounds having at least one of an ammonium group, a sulfonium group, a phosphonium group, an iodonium group, and an arsonium group. More preferred cationic surfactants include at least one of dialkyldimethylammonium chloride and alkyldimethylbenzylammonium chloride. Even more preferred cationic surfactants include C 16~18 Dialkyldimethylammonium chloride, C 8~18 The most preferred cationic surfactants include at least one of alkyldimethylbenzylammonium chloride, ditallowdimethylammonium chloride, and ditallowdimethylammonium chloride.

[0017] Amphoteric surfactants include betaines, amine oxides, alkylamidoalkylamines, alkyl-substituted amine oxides, acylated amino acids, derivatives of aliphatic quaternary ammonium compounds, and mixtures thereof. Preferred amphoteric surfactants include derivatives of aliphatic quaternary ammonium compounds. More preferred amphoteric surfactants include derivatives of aliphatic quaternary ammonium compounds with long-chain groups having 8 to 18 carbon atoms. Even more preferred amphoteric surfactants include C 12~14 The most preferred amphoteric surfactants include at least one of alkyl dimethylamine oxide, 3-(N,N-dimethyl-N-hexadecyl-ammonio)propane-1-sulfonate, and 3-(N,N-dimethyl-N-hexadecylammonio)-2-hydroxypropane-1-sulfonate. 12~14 alkyl dimethyl amine oxide.

[0018] Preferably, the fabric care compositions of the present invention comprise a fabric softening silicone. More preferably, the fabric care compositions of the present invention comprise 0.05 to 10 wt. % (preferably, 0.1 to 5 wt. %, more preferably, 0.1 to 3 wt. %) of the fabric softening silicone, based on the weight of the fabric care composition. Even more preferably, the fabric care compositions of the present invention comprise 0.05 to 10 wt. % (preferably, 0.1 to 5 wt. %, more preferably, 0.1 to 3 wt. %) of the fabric softening silicone, based on the weight of the fabric care composition, wherein the fabric softening silicone is selected from the group consisting of nitrogen-free silicone polymers, anionic silicone polymers, and mixtures thereof. Most preferably, the fabric care compositions of the present invention comprise 0.05 to 10 wt. % (preferably, 0.1 to 5 wt. %, more preferably, 0.1 to 3 wt. %) of the fabric softening silicone, based on the weight of the fabric care composition, wherein the fabric softening silicone is selected from the group consisting of nitrogen-free silicone polymers, anionic silicone polymers, and mixtures thereof, wherein the fabric softening silicone is in the form of an emulsion.

[0019] Preferred nitrogen-free silicone polymers include nonionic nitrogen-free silicone polymers, zwitterionic nitrogen-free silicone polymers, amphoteric nitrogen-free silicone polymers, and mixtures thereof. Preferred nitrogen-free silicone polymers have formula (1), (2), or (3) (preferably formula (1) or (3)):

[0020] [ka] In the formula, each R 1 independently, C 1~20 Alkyl group, C 2~20 Alkenyl group, C 6~20 Aryl group, C 7~20 Arylalkyl groups, C 7~20 Alkylaryl group, C 7~20 Arylalkenyl groups, and C 7~20 alkenylaryl groups (preferably R 1is selected from the group consisting of a methyl group, a phenyl group, and a phenylalkyl group), each R 2 is C 1~20 Alkyl group, C 2~20 Alkenyl group, C 6~20 Aryl group, C 7~20 Arylalkyl groups, C 7~20 Alkylaryl group, C 7~20 Arylalkenyl group, C 7~20 alkenylaryl groups, and poly(ethylene oxide / propylene oxide) copolymer groups having formula (4): -(CH2) n O(C2H4O) m (C3H6O) p R 3 (4) In the formula, each R 3 is hydrogen, C 1~4 at least one R independently selected from the group consisting of alkyl, acetyl, and acetyl groups; 2 is a poly(ethyleneoxy / propyleneoxy) copolymer group having formula (4), a has a value such that the viscosity of the nitrogen-free silicone polymer according to formula (1) or (3) is 2 to 50,000,000 centistokes at 20°C (preferably 10,000 to 800,000 centistokes at 20°C), b is 1 to 50 (preferably 1 to 30), c is 1 to 50 (preferably 1 to 30), n is 1 to 50 (preferably 3 to 5), m is 1 to 100 (preferably 6 to 100), p is 0 to 14 (preferably 0 to 3), and m+p is 5 to 150 (preferably 7 to 100) (preferably R 2 is selected from the group consisting of methyl, phenyl, phenylalkyl, and groups having the formula (4). The most preferred nitrogen-free silicone polymers have the formula (3), where R 1 is methyl and a has a value such that the viscosity of the nitrogen-free silicone polymer is 60,000 to 700,000 centistokes at 20°C.

[0021] Preferred nitrogen-free silicone polymers include anionic silicone polymers. Anionic silicone polymers are described, for example, in The Encyclopedia of Polymer Science, volume 11, p. 765. Examples of anionic silicone polymers include silicones incorporating carboxylic acid, sulfate, sulfonic acid, phosphate, and / or phosphonic acid functional groups. Preferred anionic silicone polymers incorporate carboxyl functional groups (e.g., carboxylic acid or carboxylate anions). Preferred anionic silicone polymers have a weight average molecular weight of 1,000 to 100,000 daltons (preferably, 2,000 to 50,000 daltons, more preferably, 5,000 to 50,000 daltons, and most preferably, 10,000 to 50,000 daltons). Preferably, the anionic silicone polymer has an anionic group content of at least 1 mol% (more preferably, at least 2 mol%). Preferably, the anionic group on the anionic silicone polymer is not located at the terminal position of the longest linear silicone chain.Preferred anionic silicone polymers have anionic groups in the middle of the silicone chain.More preferred anionic silicone polymers have anionic groups located at least 5 silicone atoms from the terminal position on the longest linear silicone chain of the anionic silicone polymer.

[0022] Preferably, the fabric care compositions of the present invention comprise a deposition aid polymer, which is a dextran polymer functionalized with a quaternary ammonium moiety, and which enhances deposition of silicone from the fabric care composition onto a fabric (preferably, cotton). More preferably, the fabric care compositions of the present invention comprise 0.05 to 5.0 wt. % (preferably, 0.075 to 3.0 wt. %, more preferably, 0.09 to 2.5 wt. %, and most preferably, 0.1 to 2.25 wt. %) of the deposition aid polymer, based on the weight of the fabric care composition, which is a dextran polymer functionalized with a quaternary ammonium moiety, and which enhances deposition of silicone from the fabric care composition onto a fabric (preferably, cotton). Most preferably, the fabric care composition of the present invention comprises 0.05 to 5.0 wt. % (preferably, 0.075 to 3.0 wt. %, more preferably, 0.09 to 2.5 wt. %, and most preferably, 0.1 to 2.25 wt. %) of a deposition aid polymer, based on the weight of the fabric care composition, wherein the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety, the deposition aid polymer enhances deposition of silicone from the fabric care composition to the fabric (preferably, cotton fabric), and the deposition aid polymer has a Kjeldahl nitrogen content, corrected for ash and volatiles, of 0.5 wt. % or more (preferably, 0.5 to 5.0 wt. %, more preferably, 0.5 to 4.0 wt. %, even more preferably, 0.75 to 2.5 wt. %, and most preferably, 1 to 2 wt. %) .... K-375 Autoanalyzer and corrected for volatiles and ash measured as described in ASTM Method D-2364), and the deposition aid polymer enhances the deposition of silicone from the fabric care composition onto fabric (preferably cotton fabric).

[0023] Preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety. More preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety, and the dextran polymer is a branched dextran polymer. Even more preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety, and the dextran polymer comprises a branched dextran polymer, the branched dextran polymer comprising a plurality of glucose structural units, 90 to 98 mol % (preferably 92.5 to 97.5 mol %, more preferably 93 to 97 mol %, and most preferably 94 to 96 mol %) of the glucose structural units being connected by α-D-1,6 bonds, and 2 to 10 mol % (preferably 2.5 to 7.5 mol %, more preferably 3 to 7 mol %, and most preferably 4 to 6 mol %) of the glucose structural units being connected by α-1,3 bonds. Most preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety, the dextran polymer being a branched dextran polymer, the branched dextran polymer comprising a plurality of glucose structural units, wherein 90 to 98 mol % (preferably 92.5 to 97.5 mol %, more preferably 93 to 97 mol %, most preferably 94 to 96 mol %) of the glucose structural units are connected by α-D-1,6 bonds and 2 to 10 mol % (preferably 2.5 to 7.5 mol %, more preferably 3 to 7 mol %, most preferably 4 to 6 mol %) of the glucose structural units are connected by α-1,3 bonds according to formula (I):

[0024] [ka] In the formula, R is hydrogen, C 1~4 Alkyl and hydroxy C 1~4 The alkyl groups are selected from dextran polymer backbones with an average branch length of no more than 3 anhydroglucose units.

[0025] Preferably, the dextran polymer contains less than 0.01% by weight of alternan based on the weight of the dextran polymer. More preferably, the dextran polymer contains less than 0.001% by weight of alternan based on the weight of the dextran polymer. Most preferably, the dextran polymer contains less than the detectable limit of alternan.

[0026] Preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety. More preferably, the deposition aid polymer is a dextran polymer functionalized with a quaternary ammonium moiety, the quaternary ammonium moiety being of formula (A) attached to a pendant oxygen on the dextran polymer:

[0027] [ka] During the ceremony,

[0028] [ka] is a pendant oxygen on the dextran polymer, and X is a divalent linking group that attaches the quaternary ammonium moiety to the pendant oxygen on the dextran polymer (preferably, X is selected from divalent hydrocarbon groups, which may be optionally substituted (e.g., with hydroxy, alkoxy, ether groups), more preferably, X is -CHCH(OR 6 ) CH2- group, and R 6 is hydrogen and C 1~4 alkyl groups (preferably hydrogen, and most preferably X is a -CH2CH(OH)CH2- group), each R 4 is C 1~7 Alkyl groups (preferably C 1~3 alkyl groups, more preferably methyl and ethyl groups, most preferably methyl groups; R 5 is C 1~22 Alkyl groups (preferably C 1~3 Alkyl groups and C6~22 alkyl groups, more preferably methyl and ethyl groups, most preferably methyl groups. Most preferably, the deposition aid polymer is a cationic dextran polymer, the cationic dextran polymer comprising a dextran polymer functionalized with quaternary ammonium groups, the quaternary ammonium groups being selected from the group consisting of quaternary ammonium moieties of formula (B) attached to pendant oxygens on the dextran polymer:

[0029] [ka] In the formula, R 6 is hydrogen and C 1~4 alkyl groups (preferably hydrogen), and each R 7 are independently selected from the group consisting of a methyl group and an ethyl group (preferably a methyl group).

[0030] Preferably, the deposition aid polymer contains less than 0.001 meq / gram (preferably less than 0.0001 meq / gram, more preferably less than 0.00001 meq / gram, most preferably below the detectable limit) of aldehyde functionality.

[0031] Preferably, the deposition aid polymer contains less than 0.1% (preferably less than 0.01%, more preferably less than 0.001%, and most preferably below the detectable limit) β-1,4 linkages between individual glucose units in the deposition aid polymer.

[0032] Preferably, the deposition aid polymer contains less than 0.1% (preferably less than 0.01%, more preferably less than 0.001%, and most preferably below the detectable limit) β-1,3 linkages between individual glucose units in the deposition aid polymer.

[0033] Preferably, the deposition aid polymer comprises a silicone containing less than 0.001 meq / gram (preferably less than 0.0001 meq / gram, more preferably less than 0.00001 meq / gram, most preferably below the detectable limit) of functional groups.

[0034] Preferably, the fabric care composition of the present invention is a laundry detergent.

[0035] Preferably, the fabric care composition of the present invention is a laundry detergent. Preferably, the laundry detergent optionally comprises an additive selected from the group consisting of builders (e.g., sodium citrate), hydrotropes (e.g., ethanol, propylene glycol), enzymes (e.g., proteases, lipases, amylases), preservatives, fragrances (e.g., essential oils such as D-limonene), optical brighteners, dyes, additive polymers, and mixtures thereof.

[0036] Preferably, the fabric care compositions of the present invention further comprise 0-10 wt% (preferably 1-10 wt%, more preferably 2-8 wt%, most preferably 5-7.5 wt%) of a hydrotrope, based on the weight of the fabric care composition. More preferably, the fabric care compositions of the present invention further comprise 0-10 wt% (preferably 1-10 wt%, more preferably 2-8 wt%, most preferably 5-7.5 wt%) of a hydrotrope, based on the weight of the fabric care composition, the hydrotrope being selected from the group consisting of alkyl hydroxides; glycols, urea; monoethanolamine; diethanolamine; triethanolamine; calcium, sodium, potassium, ammonium, and alkanolammonium salts of xylene sulfonic acid, toluene sulfonic acid, ethylbenzene sulfonic acid, and cumene sulfonic acid; salts thereof, and mixtures thereof. Even more preferably, the fabric care compositions of the present invention further comprise 0-10 wt.% (preferably, 1-10 wt.%, more preferably, 2-8 wt.%, and most preferably, 5-7.5 wt.%) of a hydrotrope, based on the weight of the fabric care composition, wherein the hydrotrope is selected from the group consisting of ethanol, propylene glycol, sodium toluene sulfonate, potassium toluene sulfonate, sodium xylene sulfonate, ammonium xylene sulfonate, potassium xylene sulfonate, calcium xylene sulfonate, sodium cumene sulfonate, ammonium cumene sulfonate, and mixtures thereof. Even more preferably, the fabric care compositions of the present invention further comprise 0-10 wt.% (preferably, 1-10 wt.%, more preferably, 2-8 wt.%, and most preferably, 5-7.5 wt.%) of a hydrotrope, based on the weight of the fabric care composition, wherein the hydrotrope comprises at least one of ethanol, propylene glycol, and sodium xylene sulfonate. Most preferably, the fabric care compositions of the present invention further comprise 0-10 wt.% (preferably, 1-10 wt.%, more preferably, 2-8 wt.%, and most preferably, 5-7.5 wt.%) of a hydrotrope, based on the weight of the fabric care composition, wherein the hydrotrope is a mixture of ethanol, propylene glycol, and sodium xylene sulfonate.

[0037] Preferably, the fabric care compositions of the present invention further comprise 0-10 wt% (preferably 0.1-10 wt%) of a fragrance, based on the weight of the fabric care composition. More preferably, the fabric care compositions of the present invention further comprise 0-10 wt% (preferably 0.1-10 wt%) of a fragrance, based on the weight of the fabric care composition, wherein the fragrance comprises an essential oil. More preferably, the fabric care compositions of the present invention further comprise 0-10 wt% (preferably 0.1-10 wt%) of a fragrance, based on the weight of the fabric care composition, wherein the fragrance comprises an ester (e.g., geranyl acetate); a terpene (e.g., geranol, citronellol, linalool, limonene), and an aromatic compound (e.g., vanilla, eugenol).

[0038] Preferably, the fabric care compositions of the present invention further comprise 0 to 30 wt % (preferably, 0.1 to 15 wt %, more preferably, 1 to 10 wt %) of a builder, based on the weight of the fabric care composition. More preferably, the fabric care compositions of the present invention further comprise 0 to 30 wt. % (preferably, 0.1 to 15 wt. %, more preferably, 1 to 10 wt. %) of a builder, based on the weight of the fabric care composition, wherein the builder is selected from the group consisting of inorganic builders (e.g., tripolyphosphates, pyrophosphates), alkali metal carbonates, borates, bicarbonates, hydroxides, zeolites, citrates (e.g., sodium citrate), polycarboxylates, monocarboxylates, aminotrismethylenephosphonic acid, salts of aminotrismethylenephosphonic acid, hydroxyethanediphosphonic acid, salts of hydroxyethanediphosphonic acid, diethylenetriaminepenta(methylenephosphonic acid), salts of diethylenetriaminepenta(methylenephosphonic acid), ethylenediaminetetraethylene-phosphonic acid, salts of ethylenediaminetetraethylene-phosphonic acid, oligomeric phosphonates, polymeric phosphonates, and mixtures thereof. Most preferably, the fabric care compositions of the present invention further comprise 0 to 30 wt. % (preferably, 0.1 to 15 wt. %, more preferably, 1 to 10 wt. %) of a builder, based on the weight of the fabric care composition, wherein the builder comprises a citrate salt (preferably, sodium citrate).

[0039] Preferably, the fabric care composition is in liquid form having a pH of 6 to 12.5, preferably at least 6.5, preferably at least 7, preferably at least 7.5, preferably no more than 12.25, preferably no more than 12, preferably no more than 11.5. Suitable bases for adjusting the pH of the formulation include inorganic bases such as sodium hydroxide (including soda ash) and potassium hydroxide; sodium bicarbonate, sodium silicate, ammonium hydroxide; and organic bases such as mono-, di-, or triethanolamine; or 2-dimethylamino-2-methyl-1-propanol (DMAMP). Mixtures of bases may also be used. Suitable acids for adjusting the pH of aqueous media include inorganic acids such as hydrochloric acid, phosphoric acid, and sulfuric acid, and organic acids such as acetic acid. Mixtures of acids may also be used. The formulation may be adjusted to a higher pH using a base and then back-titrated to the above range using an acid.

[0040] The present invention provides a method of treating laundry comprising providing laundry, providing a fabric care composition of the present invention, providing bath water, and applying the bath water and the fabric care composition to the laundry to provide treated laundry, wherein a fabric care benefit agent is associated with the treated laundry (preferably, the fabric care benefit agent is not covalently bound to the treated laundry). More preferably, the present invention provides a method of treating laundry comprising providing laundry, providing a fabric care composition of the present invention, providing bath water, and applying the bath water and the fabric care composition to the laundry to provide treated laundry, wherein a fabric care benefit agent is associated with the treated laundry (preferably, the fabric care benefit agent is not covalently bound to the treated laundry), and wherein a deposition aid polymer improves laundry delivery efficacy of the fabric care benefit agent (preferably, the fabric care benefit agent is a fabric softening silicone).

[0041] Some embodiments of the present invention are described in detail in the following examples.

[0042] The modified carbohydrate polymers in the examples were characterized as follows.

[0043] Volatile matter and ash content (measured as sodium chloride) were determined as described in ASTM method D-2364.

[0044] Total Kjeldahl nitrogen content (TKN) was determined in duplicate using a Buchi KjelMaster K-375 automated Kjeldahl analyzer. TKN values were corrected for volatile matter and ash.

[0045] Example S1: Synthesis of branched cationic dextran polymer A 500 mL four-neck round-bottom flask equipped with a rubber ceramic cap, a nitrogen inlet, a pressure-equalizing addition funnel, a stirring paddle and motor, a subsurface thermocouple connected to a J-KEM controller, and a Friedrich condenser connected to a mineral oil bubbler was charged with dextran (30.33 g, Aldrich Product No. D4876) and deionized water (160.75 g). The weight-average molecular weight of the dextran was 130,000-170,000 daltons. The addition funnel was charged with a 70% aqueous solution of 2,3-epoxypropyltrimethylammonium chloride (27.13 g; QUAB® 151, available from SKW QUAB Chemicals). The contents of the flask were stirred until the dextran dissolved in the deionized water. While stirring the contents, the apparatus was purged with nitrogen to remove any trapped oxygen. The nitrogen flow rate was approximately 1 bubble per second. The mixture was purged with nitrogen while stirring for 1 hour. Using a plastic syringe, 25% aqueous sodium hydroxide (4.76 g) was added to the contents of the flask over several minutes while stirring under nitrogen. The contents of the flask were then allowed to stir under nitrogen for 30 minutes. The contents of the addition funnel were then charged dropwise to the contents of the flask over several minutes under nitrogen with continued stirring. After the contents of the addition funnel were transferred to the contents of the flask, the mixture was allowed to stir for 5 minutes. Heat was then applied to the contents of the flask with a heating mantle controlled using a J-KEM controller set at 55°C. The contents of the flask were heated to 55°C and maintained at 55°C for 90 minutes. The contents of the flask were then allowed to cool to room temperature while maintaining positive nitrogen pressure within the flask. When the contents of the flask reached room temperature, acetic acid (2.50 g) was added dropwise to the contents of the flask via syringe, and the contents of the flask were allowed to stir for 5 minutes. The polymer was recovered by non-solvent precipitation of the aqueous solution with an excess of methanol. The precipitated cationic dextran polymer was then recovered by filtration through a Buchner funnel and dried overnight in vacuo at 50° C. The product branched cationic dextran polymer was an off-white solid (24.3 g) with a volatile content of 3.65% and an ash content of 0.37% (as sodium chloride).Volatile matter and ash were measured as described in ASTM method D-2364. Kjeldahl nitrogen content was measured using a Buchi KjelMaster K-375 autoanalyzer and found to be 1.41% (corrected for volatile matter and ash), which corresponds to a degree of trimethylammonium substitution, Cs, of 0.19. Weight average molecular weight, M, of the product cationic dextran polymer. W was 1,820,000 daltons.

[0046] Comparative Examples CF1-CF2 and Examples F1-F4: Fabric Care Compositions Fabric care compositions having the formulations set forth in Table 1 were prepared according to standard laundry formulation preparation procedures for each of Comparative Examples CF1-CF2 and Examples F1-F4.

[0047] [Table 1]

[0048] Silicone adhesion during cleaning The wash deposition of silicone from silicone-containing fabric care compositions was evaluated for each of the compositions of Comparative Examples CF1-CF2 and Examples F1-F4 on cotton. The cotton was washed under typical wash conditions (ambient wash temperature, water hardness: 200 ppm, 3:1 molar ratio of Ca 2+ :Mg 2+ The fabrics were washed with the silicone-containing fabric care composition in a Terg-O-tometer using a dosage of 1.0 g of the silicone-containing fabric care composition in 1 L of water (one 16 minute wash cycle and one 3 minute rinse).

[0049] The surface deposition of silicone on the cotton was then determined by X-ray photoelectron spectroscopy (XPS). The bulk concentration of silicone on the cotton surface was also measured by X-ray fluorescence spectroscopy (XRF). The results are provided in Table 2.

[0050] The volatile matter and ash contents (as sodium chloride), measured as described in ASTM method D-2364, and the Kjeldahl nitrogen content (corrected for volatile matter and ash), measured using a Buchi KjelMaster K-375 autoanalyzer, and the corresponding calculated degree of triethylammonium substitution, CS, are also provided in Table 2.

[0051] [Table 2]

[0052] Prevents re-adhesion of contamination The soil redeposition prevention of the fabric care compositions was evaluated for each of the compositions of Comparative Examples CF1-CF2 and Example F1 on four types of fabric (cotton interlock, cotton, polyester / cotton blend, cotton terry) under typical wash conditions (ambient wash temperature, water hardness: 200 ppm, 3:1 molar ratio of Ca 2+ :Mg 2+ The fabrics were evaluated by washing them in a Terg-O-tometer using a detergent dosage of 0.5 g / L (1 L / wash, 60 minute wash and 3 minute rinse). An orange (high iron content) clay slurry (0.63 g, Red Art Clay) and dust sebum dispersion (2.5 g) were the added soil loads. After washing was completed, the fabric swatches were dried and read on a Mach5 color instrument to calculate the Whiteness Index (WI) according to ASTM E313. The results are provided in Table 3 as Delta Whiteness Index (ΔWI E313). Lower values are better.

[0053] [Table 3]

Claims

1. A laundry detergent comprising: Water and 10 to 60 wt. % of a detersive surfactant, based on the weight of the laundry detergent; 0.1 to 5% by weight of a fabric softening silicone, based on the weight of the laundry detergent; 0.075 to 3.0 wt. % of a deposition aid polymer, based on the weight of the laundry detergent; the deposition aid polymer is a branched dextran polymer functionalized with quaternary ammonium moieties; the quaternary ammonium moiety is of formula (A) attached to a pendant oxygen on the branched dextran polymer, 【Chemical 1】 During the ceremony, 【Chemistry 2】 is a pendant oxygen on said branched dextran polymer, X is a divalent linking group attaching said quaternary ammonium moiety to said pendant oxygen on said branched dextran polymer, each R 4 is independently selected from the group consisting of C 1-7 alkyl groups and R 5 is selected from the group consisting of C 1-22 alkyl groups; the branched dextran polymer comprises a plurality of glucose structural units; 92.5 to 98 mol % of the glucose structural units are connected by α-D-1,6 bonds, and 2 to 7.5 mol % of the glucose structural units are connected by α-1,3 bonds; the deposition aid polymer enhances deposition of the fabric softening silicone from the laundry detergent onto fabrics; A laundry detergent wherein the cleansing surfactant is selected from the group consisting of a mixture comprising anionic surfactants and nonionic surfactants.

2. 10. The laundry detergent of claim 1, wherein the fabric softening silicone is selected from the group consisting of nitrogen-free silicone polymers and anionic silicone polymers.

3. 10. The laundry detergent of claim 1, wherein the deposition aid polymer has a Kjeldahl nitrogen content, corrected for ash and volatile matter, of 0.5 to 5.0 wt. %.

4. 4. The fabric care composition of claim 3, wherein the branched dextran polymer comprises a plurality of glucose structural units, wherein 94-96 mole percent of the glucose structural units are connected by α-D-1,6 linkages and 4-6 mole percent of the glucose structural units are connected by α-1,3 linkages.

5. 10. The laundry detergent of claim 1, wherein the detersive surfactant comprises a mixture of linear alkyl benzene sulfonate, sodium lauryl ethoxy sulfate, and nonionic alcohol ethoxylate.

6. 10. A method of treating laundry comprising: providing laundry; selecting the laundry detergent of claim 1; providing bath water; and applying the bath water and the laundry detergent to the laundry to provide treated laundry, wherein the fabric softening silicone is associated with the treated laundry.

7. 7. The method of claim 6, wherein the laundry detergent is as defined in claim 5.

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