Hair conditioning composition for improved deposition
A composition comprising: ⋅(i) 0.01 to 10 wt % of a branched cationic conditioning surfactant selected from structure 1⋅wherein: ⋅⋅R 1 and R 2 comprise linear alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 4 to C 20 ; ⋅⋅R 3 comprise either a proton or linear or branched alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 1 to C 5 ; ⋅⋅n has a range of from 0 to 10; ⋅⋅X G is an organic or inorganic anion; ⋅(ii) 0.1 to 10 wt % of a linear fatty material having at least one linear carbon-carbon chain, selected from a linear fatty alcohol, a linear alkoxylated fatty alcohol, a linear fatty acid and mixtures thereof; ⋅(iii) 0.1 to 5 wt % of a nonionic structurant; and ⋅(iv) a particulate benefit agent selected from conditioning actives; wherein the molar ratio of branched cationic surfactants (i) to linear fatty material (ii) is in the range of from 1:20 to 1:1, results in improved particulate benefit agent deposition onto bleached hair. A preferred structurant is hydroxyethyl cellulose and preferred conditioning actives are silicone emulsions.
1 . A composition comprising:
(i) 0.01 to 10 wt % of a branched cationic conditioning surfactant; selected from structure 1,
and an organic or inorganic ion X − , wherein:
R 1 and R 2 comprise linear alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 4 to C 20 ;
R 3 comprise either a proton or linear or branched alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 1 to C 5 ;
n has a range of from 0 to 10;
(ii) 0.1 to 10 wt % of a linear fatty material comprising linear carbon-carbon chains, selected from a fatty alcohol, an alkoxylated fatty alcohol, a fatty acid and mixtures thereof;
(iii) 0.1 to 5 wt % of a nonionic structurant; and
(iv) a particulate benefit agent selected from conditioning actives;
wherein the molar ratio of branched cationic surfactants (i) to linear fatty material (ii) is in the range of from 1:20 to 1:1.
2 . The composition of claim 1 , wherein the structurant is a nonionic polysaccharide.
3 . The composition of claim 2 , wherein the structurant is hydroxyethyl cellulose.
4 . The composition of claim 1 , wherein the conditioning actives are silicone emulsions.
5 . The composition of claim 4 , wherein the silicone emulsions are selected from emulsions of dimethicone, dimethiconol, amodimethicone and mixtures thereof.
6 . The composition of claim 4 , wherein the silicone emulsions are not myristyloxyl modified silicone.
7 . The composition of claim 1 , wherein the particulate benefit agent is present in an amount of from 0.1 wt % to 10 wt % of the total composition.
8 . The composition of claim 7 , wherein the particulate benefit agent is present in an amount of from 0.25 to 1.5 wt %.
9 . The composition of claim 1 , wherein X − comprises an anion selected from a halide, a methanesulfonate group and an ethanesulphonate group.
10 . The composition of claim 1 , wherein the molar ratio of branched cationic surfactants (i) to linear fatty material (ii) is in the range of from 1:10 to 1:1.
11 . The composition of claim 1 , wherein the branched cationic conditioning surfactant is present in an amount of from 0.01 to 5 wt %.
12 . A method of increasing deposition of a particulate benefit agent selected from conditioning actives, scalp actives, encapsulated fragrance, emulsified fragrance, and mixtures thereof to bleached hair, the method comprising the steps of applying to hair a composition of claim 1 and rinsing the hair with water, wherein deposition of the particulate benefit agent is increased compared with a composition similar to the composition of claim 1 but that does not comprise a branched cationic conditioning surfactant in accordance with Structure 1.
13 . The method of claim 12 wherein the particulate benefit agent is selected from conditioning actives.
14 . The method of claim 13 , wherein the particulate benefit agent is a silicone emulsion.
15 . The composition of claim 6 , wherein the silicone emulsions are not a myristyloxyl modified silicone or a cetyloxyl modified silicone.