Fabric Care Compositions

Abstract

A fabric care composition is provided that includes water, a detersive surfactant, a fabric softening silicone that is a nitrogen-containing silicone, and a deposition aid polymer that is a dextran polymer functionalized with quaternary ammonium moieties, where 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 a fabric care composition. In particular, the present invention relates to a fabric care composition comprising water, a detersive surfactant, a fabric softening silicone that is a nitrogen-containing silicone, and a deposition aid polymer that is a dextran polymer functionalized with quaternary ammonium moieties, where 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, however, 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 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 selected from the group consisting of at least one C 8~22 The present invention discloses fabric care compositions having alkyl or alkenyl groups of the formula:

[0004] A fabric care composition is disclosed in WO 2021 / 194808 by Pulukkody et al. Pulukkody et al. disclose a fabric care composition comprising water, a detersive surfactant, a fabric softening silicone, and a deposition aid polymer that is a dextran polymer functionalized with quaternary ammonium moieties, where the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to the fabric.

[0005] Nonetheless, there remains a continuing need for fabric care compositions that have a desirable balance of performance properties, particularly softening and anti-redeposition, and particularly formulations that employ nitrogen-containing fabric softening silicones.

[0006] The present invention provides a fabric care composition comprising water, a detersive surfactant, a fabric softening silicone that is a nitrogen-containing silicone, and a deposition aid polymer that is a dextran polymer functionalized with quaternary ammonium moieties, where the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to fabrics.

[0007] 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 PREFERRED EMBODIMENTS

[0008] It has been discovered that fabric care compositions comprising a nitrogen-containing fabric softening silicone in combination with a deposition aid polymer comprising a dextran polymer functionalized with quaternary ammonium moieties provide a surprisingly favorable balance of softening and anti-redeposition.

[0009] 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.

[0010] 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 technique of GPC is discussed in detail in Modem Size Exclusion Chromatography, WW Yau, JJ Kirkland, DDBly; Wiley-Interscience, 1979, and A Guide to Materials Characterization and Chemical Analysis, JP Sibilia; VCH, 1988, p.81-84. Weight average molecular weight is reported herein in units of Daltons.

[0011] Preferably, the fabric care composition of the present invention comprises water (preferably 10 wt% to 94.9 wt% (more preferably 25 wt% to 94 wt%, even more preferably 40 wt% to 85 wt%, most preferably 50 wt% to 75 wt%) of water, based on the weight of the fabric care composition), a cleaning surfactant (preferably 5 wt% to 89.9 wt% (more preferably 7.5 wt% to 75 wt%, even more preferably 10 wt% to 60 wt%, most preferably 15 wt% to 30 wt%) of a cleaning surfactant, based on the weight of the fabric care composition), a fabric softening silicone (preferably 0.05 wt% to 10 wt% (more preferably 0.1 wt% to 5 wt%, most preferably 0.1 wt% to 3.5 wt%) of a fabric softening silicone, which is a nitrogen-containing silicone, and a deposition aid polymer (preferably 0.05 wt% to 5.0 wt%, more preferably 0.05 wt% to 5.0 wt%, more preferably 0.05 wt% to 5.0 wt%, based on the weight of the fabric care composition). and preferably 0.075% to 3.0% by weight, even more preferably 0.09% to 2.5% by weight, and most preferably 0.1% to 2.25% by weight of a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer (preferably a branched dextran polymer) functionalized with a quaternary ammonium moiety (preferably the deposition aid polymer has a concentration of 0.5% or more (preferably 0.5% to 5.0% by weight) corrected for ash and volatiles). , more preferably having a Kjeldahl nitrogen content TKN of 0.5% to 4.0% by weight, even more preferably 0.75% to 2.5% by weight, and most preferably 1% to 2% by weight), the deposition aid polymer enhances the 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).

[0012] 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.

[0013] Preferably, the fabric care composition of the present invention comprises water. More preferably, the fabric care composition of the present invention comprises 10% to 94.9% (more preferably, 25% to 94%, even more preferably, 40% to 85%, most preferably, 50% to 75% by weight) of water, based on the weight of the fabric care composition. Even more preferably, the fabric care composition of the present invention comprises 10% to 94.9% (more preferably, 25% to 94%, even more preferably, 40% to 85%, most preferably, 50% to 75% by weight) of 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 from 10% to 94.9% (more preferably, from 25% to 94%, even more preferably, from 40% to 85%, and most preferably, from 50% to 75%) water by weight, based on the weight of the fabric care composition, and the water is distilled and deionized.

[0014] Preferably, the fabric care composition of the present invention comprises a cleaning surfactant. More preferably, the fabric care composition of the present invention comprises from 5 wt% to 89.9 wt% (preferably, from 7.5 wt% to 75 wt%, more preferably, from 10 wt% to 60 wt%, and most preferably, from 15 wt% to 30 wt%) of a cleaning surfactant based on the weight of the fabric care composition. Even more preferably, the fabric care composition of the present invention comprises from 5 wt% to 89.9 wt% (preferably, from 7.5 wt% to 75 wt%, more preferably, from 10 wt% to 60 wt%, and most preferably, from 15 wt% to 30 wt%) of a cleaning surfactant based on the weight of the fabric care composition, the cleaning surfactant being selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, and mixtures thereof. Even more preferably, the fabric care composition of the present invention comprises from 5% to 89.9% (preferably, from 7.5% to 75%, more preferably, from 10% to 60%, and most preferably, from 15% to 30%) by weight of the fabric care composition of a cleaning surfactant, the cleaning surfactant being selected from the group consisting of a mixture comprising an anionic surfactant and a nonionic surfactant. Most preferably, the fabric care composition of the present invention comprises from 5% to 89.9% (preferably, from 7.5% to 75%, more preferably, from 10% to 60%, and most preferably, from 15% to 30%) by weight of the fabric care composition of a cleaning surfactant, the cleaning surfactant comprising a mixture of linear alkyl benzene sulfonate, sodium lauryl ethoxy sulfate, and nonionic alcohol ethoxylate.

[0015] 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, alpha-sulfocarboxylates, esters of alpha-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, alkyl phenol polyethoxy ether sulfates, 2-acryloxy-alkane-1-sulfonic acids, 2-acryloxy-alkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, amine oxides, and mixtures thereof. Preferred anionic surfactants include C 8~20 Alkylbenzene sulfate, C 8~20 Alkylbenzene sulfonic acid, C 8~20 Alkylbenzene sulfonates, Paraffin sulfonic acids, Paraffin sulfonates, Alpha-olefin sulfonic acids, Alpha-olefin sulfonates, Alkoxylated alcohols, C 8~20 Examples of the anionic surfactant include alkylphenols, amine oxides, sulfonates of fatty acids, sulfonates of fatty acid esters, and mixtures thereof. More preferred anionic surfactants include C 12~16 Alkylbenzene sulfonic acid, C 12~16 Alkylbenzene sulfonate, C 12~18 Paraffin sulfonic acid, C 12~18 paraffin sulfonates, and mixtures thereof.

[0016] 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.

[0017] Cationic surfactants include quaternary surface active compounds. Preferred cationic surfactants include quaternary surface active compounds having at least one of ammonium, sulfonium, phosphonium, iodonium, and arsonium groups. 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 At least one of alkyl dimethyl benzyl ammonium chloride, ditallow dimethyl ammonium chloride, and ditallow dimethyl ammonium chloride is included. The most preferred cationic surfactant is ditallow dimethyl ammonium chloride.

[0018] Examples of 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 having a long chain group with 8 to 18 carbon atoms. Even more preferred amphoteric surfactants include C 12~14 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 is included. The most preferred amphoteric surfactants include C 12~14 At least one of alkyl dimethyl amine oxides may be mentioned.

[0019] Preferably, the fabric care composition of the present invention comprises from 0.05% to 10% by weight (preferably, 0.1% to 5% by weight, more preferably, 0.1% to 3.5% by weight) of a fabric softening silicone, based on the weight of the fabric care composition, wherein the fabric softening silicone is a nitrogen-containing silicone. More preferably, the fabric care composition of the present invention comprises from 0.05% to 10% by weight (preferably, 0.1% to 5% by weight, more preferably, 0.1% to 3.5% by weight) of a fabric softening silicone, based on the weight of the fabric care composition, wherein the fabric softening silicone is a nitrogen-containing silicone having a formula selected from the group consisting of formula (a) and formula (b):

[0020] [ka] (In the formula, each E 1 are independently selected from the group consisting of monovalent hydrocarbon groups, hydroxyl groups, and alkoxy groups; each R 1 are independently a monovalent hydrocarbon group, and each R 2 are independently a divalent hydrocarbon group having 1 to 10 carbon atoms, h is 25 to 1,000, and j is 0.1 to 200. 3” Generally, -NR 4” or a heterocyclic nitrogen-containing compound, which may be, for example,

[0021] [ka] (In the formula, each R 4” are independently a hydrogen atom and a group of the formula -R 2 NY groups, each Y is independently a hydrogen atom or Y′, and each Y′ is a group of the formula:

[0022] [ka] R 2may be the same or different and are characterized as above, except that every Y is not H and each E 2 is an organofunctional endblocking group, A is a divalent organic group comprising at least one polyether group, B is a diorganopolysiloxane, and n is at least 1 (preferably 1 to 50). Most preferably, the fabric care composition of the present invention comprises from 0.05% to 10% (preferably, from 0.1% to 5%, more preferably, from 0.1% to 3.5%) by weight of a fabric softening silicone, based on the weight of the fabric care composition, the fabric softening silicone being a nitrogen-containing silicone having the formula (a).

[0023] Preferably, each E 1 is an endblocking group independently selected from the group consisting of monovalent hydrocarbon groups, hydroxyl groups, and alkoxy groups. More preferably, each E 1 is an end-blocking group independently selected from the group consisting of alkyl groups (e.g., methyl, ethyl, propyl, butyl, pentyl, and hexyl), aryl groups (e.g., phenyl, tolyl, and xylyl), and aralkyl groups (e.g., benzyl and phenethyl). 1 When is an alkoxy group, it preferably has 1 to 15 carbon atoms. Alkyl groups are most preferred, with methyl being especially preferred.

[0024] Preferably, each R 2 are independently divalent hydrocarbon groups of 1 to 10 carbon atoms. Divalent groups include alkylene groups such as ethylene, propylene, butylene, isobutylene, and methylpropylene, as well as alkylene-arylene groups represented by the following formula: -(CH2)2-C6H4 Examples are given below. Alkylene groups such as ethylene, propylene and isobutylene are preferred.

[0025] Preferably, each R 1 is an alkyl group such as methyl, and R 2is an alkylene group such as isobutyl, h is 75 to 400, and j is 0.75 to 20.

[0026] Preferably, Y' is

[0027] [ka] It is.

[0028] Preferably, R 4” teeth,

[0029] [ka] is selected from.

[0030] Preferably, the organofunctional endblocking group E in the nitrogen silicone of formula (b) 2 is the formula R A CH2CH(OH)CH2OR 9 -, wherein R A is a monovalent amine functional group, and R 9 is a divalent hydrocarbon linking group containing 2 to 6 carbon atoms (e.g., a divalent alkylene such as ethylene, propylene, butylene, isobutylene, pentylene, and hexylene). Typically, R 9 is propylene (-CH2CH2CH2-). A monovalent amine functional group R A may be any amine functional organic group. The nitrogen atom of the amine functional group is -CHCH(OH)CHOR 9 - is attached to the methylene group of the end-blocking group. The amine functional group may be any secondary, tertiary or quaternary amine, but is typically a tertiary amine. The amine functional group may also include other organic functional groups such as amino, hydroxy, epoxy, ether, amide, and carboxyl groups. Thus, R A is the formula -N(R 10 )2, -N(H)(R 10 ), -N(R 10 ) 3, where R 10are independently monovalent organic compounds containing 1 to 30 carbon atoms (preferably R 10 is independently selected from the group consisting of methyl, ethyl, propyl and butyl. A is selected from the group consisting of -N(H)(CH3), -N(CH3)2, -N(H)(CH2CH3), -N(CH2CH3)2, -N(CH2CH3)3 and -N(CH2CH2OH)2. The amine functional group may include cyclic amines such as pyrrolidine, piperidine, morpholine, 3-pyrrolidinol, 2,5-dimethylpyrrolidine, 1-methylpiperazine, 2,6-dimethylpiperidine, 1-ethylpiperazine, 1-amino-4-methylpiperazine and isoindoline.

[0031] Preferably, the divalent organic group A in the nitrogen-containing silicone of formula (b) comprises at least one polyether group. As used herein, "polyether" refers to a polyoxyalkylene group. The polyoxyalkylene group is represented by the formula (C i H 2i O) r where i is 2 to 4 and r is at least 4 (preferably 5 to 60, more preferably 5 to 30). The polyoxyalkylene group may contain oxyethylene units (C2H4O), oxypropylene units (C3H6O), oxybutylene units (C4H8O), or a mixture thereof. Typically, the polyoxyalkylene group contains oxyethylene units (C2H4O), or a mixture of oxyethylene and oxypropylene units.

[0032] The diorganopolysiloxane group B in the nitrogen-containing silicone of formula (b) is represented by the formula (R 11 SiO) t In addition, the siloxane may be a predominantly linear siloxane polymer having the formula 11 are independently selected from monovalent hydrocarbon groups and monovalent halogenated hydrocarbon groups, and t is at least 1 (preferably 2 to 100, more preferably 2 to 50). 11The monovalent hydrocarbon group represented by the formula (I) preferably contains no aliphatic unsaturation and has 1 to 30 carbon atoms (preferably 1 to 10 carbon atoms). 11 Examples of monovalent hydrocarbon groups represented by the formula (I) include alkyl groups (e.g., methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, undecyl, and octadecyl), cycloalkyl groups (e.g., cyclohexyl), aryl groups (e.g., phenyl, tolyl, xylyl, benzyl, and w-phenylethyl), and halogenated hydrocarbon groups (e.g., 3,3,3-trifluoropropyl, 3-chloropropyl, and dichlorophenyl).

[0033] Representative non-limiting average formulas of nitrogen-containing fabric softening silicones having formula (b) include: Et2NCH2CH(OH)CH2O(CH2)3(Me2SiO) n Me2Si- [[(CH2)3(EO) m’ (CH2)3][(Me2SiO) n Me2Si]] p - (CH2)3OCH2CH(OH)CH2NEt2 Et2NCH2CH(OH)CH2O(CH2)3(Me2SiO) n Me2Si- [[(CH2)3[(EO) m’ (PO) m” ](CH2)3][(Me2SiO) n Me2Si]] p - (CH2)3OCH2CH(OH)CH2NEt2 Et2NCH2CH(OH)CH2O(CH2)3(Me2SiO) n Me2Si- [[CH2CH(Me)CH2[(EO) m’ ]CH2CH(Me)CH2][(Me2SiO) n Me2Si]] p - (CH2)3OCH2CH(OH)CH2NEt2 Et2NCH2CH(OH)CH2O(CH2)3(Me2SiO) n Me2Si- [[CH-2CH(Me)CH2[(EO) m’ (PO) m” ]CH2CH(Me)CH2][(Me2SiO) n Me2Si]] p - (CH2)3OCH2CH(OH)CH2NEt2 (wherein n is at least 1 (preferably 1 to 50), p is 0 or more, m' is 0 or more (preferably 0 to 60), m" is 0 or more (preferably 0 to 60) with the proviso that m'+m" is 4 or more, Me is methyl, Et is ethyl, EO is CH2CH2O, and PO is CH2CH(Me)O or CH2CH2CH2O).

[0034] Preferably, the fabric care compositions of the present invention comprise from 0.05% to 10% (preferably, from 0.1% to 5%, more preferably, from 0.1% to 3.5%) by weight of a fabric softening silicone, based on the weight of the fabric care composition, wherein the fabric softening silicone is a nitrogen-containing silicone, which contains from 0.1% to 2% (preferably, from 0.15% to 1.5%, more preferably, from 0.18% to 1.25%, most preferably, from 0.2% to 1%) by weight of nitrogen.

[0035] Preferably, the fabric care composition of the present invention comprises a deposition aid polymer, the deposition aid polymer being a dextran polymer functionalized with quaternary ammonium moieties, which enhances deposition of silicone from the fabric care composition to the fabric (preferably cotton fabric). More preferably, the fabric care composition of the present invention comprises 0.05% to 5.0% (preferably 0.075% to 3.0%, more preferably 0.09% to 2.5%, most preferably 0.1% to 2.25%) by weight of the deposition aid polymer, based on the weight of the fabric care composition, the deposition aid polymer being a dextran polymer functionalized with quaternary ammonium moieties, which enhances deposition of silicone from the fabric care composition to the fabric (preferably cotton fabric). Most preferably, the fabric care composition of the present invention comprises from 0.05% to 5.0% (preferably, from 0.075% to 3.0%, more preferably, from 0.09% to 2.5%, and most preferably, from 0.1% to 2.25%) by weight of a deposition aid polymer, based on the weight of the fabric care composition, the deposition aid polymer being a dextran polymer functionalized with a quaternary ammonium moiety, the deposition aid polymer enhancing deposition of silicone from the fabric care composition to the fabric (preferably, cotton fabric), and the deposition aid polymer having a Kjeldahl nitrogen content TKN (Buchi KjelMaster) of 0.5% or more (preferably, from 0.5% to 5.0%, more preferably, from 0.5% to 4.0%, even more preferably, from 0.75% to 2.5%, and most preferably, from 1% to 2% by weight), corrected for ash and volatile matter. 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).

[0036] 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, and the branched dextran polymer comprises a plurality of glucose structural units, and 90 mol% to 98 mol% (preferably 92.5 mol% to 97.5 mol%, more preferably 93 mol% to 97 mol%, most preferably 94 mol% to 96 mol%) of the glucose structural units are connected by α-D-1,6 bonds, and 2 mol% to 10 mol% (preferably 2.5 mol% to 7.5 mol%, more preferably 3 mol% to 7 mol%, most preferably 4 mol% to 6 mol%) of the glucose structural units are 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, 90 mol % to 98 mol % (preferably 92.5 mol % to 97.5 mol %, more preferably 93 mol % to 97 mol %, most preferably 94 mol % to 96 mol %) of the glucose structural units being connected by α-D-1,6 bonds and 2 mol % to 10 mol % (preferably 2.5 mol % to 7.5 mol %, more preferably 3 mol % to 7 mol %, most preferably 4 mol % to 6 mol %) of the glucose structural units being connected by α-1,3 bonds according to the following formula (I):

[0037] [ka] (Wherein, R is hydrogen, C 1~4 Alkyl and hydroxy C 1~4 alkyl groups), with an average branching from the dextran polymer backbone of no more than 3 anhydroglucose units.

[0038] 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.

[0039] Preferably, the deposition aid polymer is a dextran polymer functionalized with quaternary ammonium moieties. More preferably, the deposition aid polymer is a dextran polymer functionalized with quaternary ammonium moieties, the quaternary ammonium moieties being of the following formula (A) attached to pendant oxygens on the dextran polymer:

[0040] [ka] (In the formula,

[0041] [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 7 ) CH2- group, R 7 is hydrogen and C 1~4 alkyl groups (preferably hydrogen, and most preferably X is a -CHCH(OH)CH- group), each R 5 is independent, C 1~7 Alkyl groups (preferably C 1~3 alkyl groups, more preferably methyl and ethyl groups, most preferably methyl groups; R 6 is C1~22 Alkyl group (preferably C 1~3 Alkyl group and C 6~22 Preferably, the deposition aid polymer is a cationic dextran polymer, the cationic dextran polymer comprising a dextran polymer functionalized with a quaternary ammonium group, the quaternary ammonium group being selected from the group consisting of quaternary ammonium moieties of the following formula (B) attached to pendant oxygens on the dextran polymer:

[0042] [ka] (In the formula, R 7 is hydrogen and C 1~4 alkyl groups (preferably hydrogen), and each R 8 is independently selected from the group consisting of a methyl group and an ethyl group (preferably a methyl group).

[0043] 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 limit of detectability) of aldehyde functionality.

[0044] 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.

[0045] 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.

[0046] 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 limit of detectability) of silicone-containing functional groups.

[0047] Preferably, the fabric care composition of the present invention is a laundry detergent.

[0048] 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.

[0049] Preferably, the fabric care composition of the present invention further comprises 0% to 10% by weight (preferably, 1% to 10% by weight, more preferably, 2% to 8% by weight, and most preferably, 5% to 7.5% by weight) of a hydrotrope, based on the weight of the fabric care composition. More preferably, the fabric care composition of the present invention further comprises 0% to 10% by weight (preferably, 1% to 10% by weight, more preferably, 2% to 8% by weight, and most preferably, 5% to 7.5% by weight) 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 composition of the present invention further comprises 0% to 10% (preferably, 1% to 10%, more preferably, 2% to 8%, and most preferably, 5% to 7.5%) by weight of a hydrotrope based on the weight of the fabric care composition, the hydrotrope being 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 composition of the present invention further comprises 0% to 10% (preferably, 1% to 10%, more preferably, 2% to 8%, and most preferably, 5% to 7.5%) by weight of a hydrotrope based on the weight of the fabric care composition, the hydrotrope being at least one of ethanol, propylene glycol, and sodium xylene sulfonate.Most preferably, the fabric care compositions of the present invention further comprise from 0% to 10% (preferably, from 1% to 10%, more preferably, from 2% to 8%, and most preferably, from 5% to 7.5%) by weight of the fabric care composition of a hydrotrope, wherein the hydrotrope is a mixture of ethanol, propylene glycol, and sodium xylene sulfonate.

[0050] Preferably, the fabric care composition of the present invention further comprises 0 wt% to 10 wt% (preferably, 0.1 wt% to 10 wt%) of a fragrance, based on the weight of the fabric care composition. More preferably, the fabric care composition of the present invention further comprises 0 wt% to 10 wt% (preferably, 0.1 wt% to 10 wt%) of a fragrance, based on the weight of the fabric care composition, the fragrance comprising an essential oil. Most preferably, the fabric care composition of the present invention further comprises 0 wt% to 10 wt% (preferably, 0.1 wt% to 10 wt%) of a fragrance, based on the weight of the fabric care composition, the fragrance comprising an ester (e.g., geranyl acetate), a terpene (e.g., geraniol, citronellol, linalool, limonene) and an aromatic compound (e.g., vanilla, eugenol).

[0051] Preferably, the fabric care compositions of the present invention further comprise from 0 wt% to 30 wt% (preferably, from 0.1 wt% to 15 wt%, more preferably, from 1 wt% 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 from 0 wt.% to 30 wt.% (preferably, from 0.1 wt.% to 15 wt.%, more preferably, from 1 wt.% to 10 wt.%) of a builder, based on the weight of the fabric care composition, the builder being 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 from 0 wt% to 30 wt% (preferably, from 0.1 wt% to 15 wt%, more preferably, from 1 wt% 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).

[0052] Preferably, the fabric care composition is in liquid form with a pH between 6 and 12.5, preferably at least 6.5, preferably at least 7, preferably at least 7.5, preferably not more than 12.25, preferably not more than 12, preferably not more than 11.5. Suitable bases for adjusting the pH of the formulation include sodium hydroxide (including soda ash) and potassium hydroxide; inorganic bases such as sodium bicarbonate, sodium silicate, ammonium hydroxide; and organic bases such as mono-, di-, or tri-ethanolamine; or 2-dimethylamino-2-methyl-1-propanol (DMAMP). Mixtures of bases may be used. Suitable acids for adjusting the pH of the aqueous medium include inorganic acids such as hydrochloric acid, phosphoric acid, and sulfuric acid, and organic acids such as acetic acid. Mixtures of acids may be used. The formulation may be adjusted to a higher pH with a base and then back titrated to the ranges mentioned above with an acid.

[0053] 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 laundering delivery efficiency of the fabric care benefit agent (preferably, the fabric care benefit agent is a fabric softening silicone).

[0054] Some embodiments of the present invention will now be described in detail in the following examples.

[0055] The modified carbohydrate polymers in the examples were characterized as follows.

[0056] Volatile matter and ash content (measured as sodium chloride) were determined as described in ASTM method D-2364.

[0057] Total Kjeldahl nitrogen content (TKN) was measured in binary series using a Buchi KjelMaster K-375 automated Kjeldahl analyzer. TKN values ​​were corrected for volatile matter and ash content.

[0058] Example S1: Synthesis of branched cationic dextran polymer A 500 mL four-neck round bottom flask was charged with dextran (40.25 g, Ultradex 531 dextran powder) and deionized water (89.58 g). The flask was fitted with a stirring paddle and an electric motor. The mixture was stirred for approximately 40 minutes until the dextran was completely dissolved. After the dextran was dissolved, a 70% aqueous solution of 2,3-epoxypropyltrimethylammonium chloride (27.13 g, QUAB® 151 available from SKW QUAB Chemicals) was added to the mixture. The flask was fitted with a nitrogen inlet, a rubber serum cap, and a Claisen adapter connected to a subsurface thermocouple connected to a J-KEM controller, and a Friedrichs condenser connected to a mineral oil bubbler. The mixture was then stirred under nitrogen for 1 hour to remove any oxygen that had been trapped in the system. After the 1 hour nitrogen purge was completed, a 25% aqueous solution of sodium hydroxide (6.35 g) was added and heat was applied to the reaction mixture using a J-KEM controller and a heating mantle. The heat setting was adjusted to 70° C. When the reaction mixture reached 70° C., a timer was started and the reaction mixture was allowed to react under nitrogen for 4 hours.

[0059] After 4 hours at 70°C, the reaction mixture was cooled in a water bath while maintaining a positive nitrogen pressure in the flask. The reaction mixture was neutralized by adding glacial acetic acid (2.5 g) using a syringe and stirring the mixture for 10 minutes. A 50 mL portion of the cationic dextran solution was retained as a solution for rheological characterization, and 1% EUXYL PE 9010 preservative was added to the retained solution. The remainder of the polymer was then recovered from the aqueous solution by non-solvent precipitation from methanol. A Waring blender was charged with 700 mL of methanol and approximately 20 mL of the polymer solution was added slowly and continuously at a gentle mixing speed. High speed mixing results in undesirable peptization of the polymer precipitate. At the onset of the methanol non-solvent opacification, the precipitated polymer was recovered by filtering through a set of nested #40 and #80 US Standard sieve screens. The Waring blender was charged with fresh methanol and non-solvent precipitation of the remaining aqueous solution was continued. The polymer was briefly air-dried and then dried overnight in vacuum at 50°C. The dried polymer was manually ground using a mortar and pestle and screened through a U.S. Standard #30 sieve. A white solid was obtained (43.13 g) with a volatile matter content of 4.04%, an ash content (as sodium chloride) of 0.85% (measured as described in ASTM Method D-2364), and the Kjeldahl nitrogen content of the product polymer was determined to be 1.71% (corrected for volatile matter and ash) using a Buchi KjelMaster K-375 autoanalyzer, corresponding to a CS value of 0.243.

[0060] Comparative Examples CF1-CF3 and Example F1: Fabric Care Compositions Fabric care compositions having the formulations set forth in Table 1 were prepared in each of Comparative Examples CF1-CF3 and Example F1 and were prepared according to standard laundry formulation preparation procedures.

[0061] [Table 1]

[0062] Silicone adhesion during cleaning The silicone wash deposition of the silicone-containing fabric care compositions was evaluated for each of the compositions of Comparative Examples CF1-CF3 and Example F1 on cotton. A Speed ​​Queen TR7 (Model No. AWNE9RSN116TW01) top-loading washing machine was used for the evaluation. Four Kohl's The Big One® washcloths (100% cotton) were used in each washing machine. All Kohl's fabrics were stripped prior to use in these wash evaluations to remove any treatments applied during manufacture. Washing was performed using heavy duty spin mode with light soil levels and medium wash loads (approximately 59 L). The temperature was set to cold / cold and the water temperature was adjusted to 70°F. The water was diluted with 2:1 Ca 2+ :Mg 2+ The detergent was cured to 150 ppm by molar ratio. The detergent dosage used was 0.5 g detergent / liter of water. After three machine cycles were completed, the fabric was tumble dried in an industrial dryer on high heat setting until dry. Additional ballast was added to the dryer to equal 6 pounds. After drying, the fabric was hung in a constant temperature and humidity chamber and conditioned for 24 hours at 21° C. and 65% relative humidity. After conditioning the fabric, the fabric was tested using a PhabrOmeter® Model 3 10 kg device to evaluate softness. The results are provided in Table 2.

[0063] [Table 2]

[0064] Predictive soil redeposition prevention test The soil redeposition prevention of the fabric care compositions was evaluated for each of the compositions of Comparative Examples CF1-CF3 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 Ca 2+ :Mg 2+The fabric is evaluated by washing with Terg-O-tometer using a detergent dosage of 0.5g / L under 100% water (1L / wash) with 60 minutes washing and 3 minutes rinsing. Orange (high iron content) clay slurry (0.63g, Red Art Clay) and dust sebum dispersion (2.5g) are the soil loadings. After washing is complete, the fabric swatches are dried and read with Mach5 color instrument, and the Whiteness Index (WI) is calculated according to ASTM E313. The results show that the fabric care composition of Example F1 exhibits desirable anti-redeposition performance compared to the comparative formulation.

Claims

1. 1. A fabric care composition comprising: Water, A cleaning surfactant; a fabric softening silicone which is a nitrogen-containing silicone; a deposition aid polymer which is a dextran polymer functionalized with quaternary ammonium moieties; Including, A fabric care composition, wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition to fabrics.

2. 10. The fabric care composition of claim 1, wherein said deposition aid polymer has a Kjeldahl nitrogen content, corrected for ash and volatile matter, of 0.5% to 5.0% by weight.

3. 3. The fabric care composition of claim 2, wherein the deposition aid polymer is a branched dextran polymer functionalized with quaternary ammonium groups.

4. 4. The fabric care composition of claim 3, wherein the branched dextran polymer comprises a plurality of glucose structural units, wherein 90 mol % to 98 mol % of the glucose structural units are connected by α-D-1,6 linkages and 2 mol % to 10 mol % of the glucose structural units are connected by α-1,3 linkages.

5. The fabric care composition of claim 4, wherein the fabric care composition is a laundry detergent.

6. 6. The laundry detergent of claim 5, wherein the detersive surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, and mixtures thereof.

7. 7. The laundry detergent of claim 6, wherein the detersive surfactant comprises a mixture of linear alkyl benzene sulfonate, sodium lauryl ethoxy sulfate, and nonionic alcohol ethoxylate.

8. 8. The laundry detergent of claim 7, wherein the nitrogen-containing silicone contains from 0.1% to 2% by weight of nitrogen.

9. 11. A method of treating laundry comprising: providing laundry; selecting a fabric care composition according to claim 1; providing bath water; and applying said bath water and said fabric care composition to said laundry to provide treated laundry, wherein said fabric softening silicone is associated with said treated laundry.

10. 10. The method of claim 9, wherein the fabric care composition is as defined in claim 8.

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