Method of treating hair
There is provided herein a method of treating thermally and/or chemically damaged including the following steps: contacting thermally and/or chemically damaged hair with a hair treating composition comprising a aminosilicone of the general formula (I): MD x D′ y M (I) wherein: M=R 1 R 2 2 SiO 1/2 D=R 2 2 SiO 2/2 , and D′=R 2 R 3 SiO 2/2 , and where R 1 is an alkyl group having 12 to 50 carbon atoms, R 2 is a substituted or un-substituted hydrocarbon group having 1 to about 6 carbon atoms, R 3 is 3-aminopropyl group and/or a N-(2-aminoethyl)-3-aminopropyl group, x has a value of 1 to about 2,000, and y has a value of 1 to about 50.
1. A method of treating thermally and/or chemically damaged hair comprising:
contacting hair which has been thermally and/or chemically damaged as a result of at least one of bleaching, dying, hair straightening, blow-drying and hair permanent treatments, the thermally and/or chemically damaged hair having at least one of a measured maximum width in the hair tip region (Lt) to the measured maximum width at the root end (Lr) ratio ((Lt)/(Lr)) of greater than about 3.7,
with a hair treating composition comprising an aminosilicone of the general formula (I):
MD x D′ y M (I)
wherein:
M=R 1 R 2 2 SiO 1/2
D=R 2 2 SiO 2/2 , and
D′=R 2 R 3 SiO 2/2 , and
where R 1 is an alkyl group having 12 to 50 carbon atoms, R 2 is a substituted or un-substituted hydrocarbon group having 1 to about 6 carbon atoms, R 3 is a 3-aminopropyl group and/or a N-(2-aminoethyl)-3-aminopropyl group, x has a value of 50 to about 1,500, and y has a value of 3.5 to about 40, wherein the hair treating composition is an aqueous composition which is an oil-in-water emulsion;
not rinsing the hair treating composition from the chemically and/or thermally damaged hair that has been treated with the hair treating composition; and,
applying heat for physically smoothing and/or shaping the treated hair;
the hair following such treatment having lower frizziness, the lower frizziness is a (Lt) to (Lr) ratio ((Lt)/(Lr)) of less than about 3.6.
2. The method of claim 1 wherein hair straightening comprises the treatment of the hair with an iron.
3. The method of claim 1 wherein R 1 is an alkyl group containing from about 15 to about 20 carbon atoms, R 2 is methyl and R 3 is a N-(2-aminoethyl)-3-aminopropyl group.
4. The method of claim 1 wherein R 1 is an alkyl group containing from about 30 to about 45 carbon atoms, R 2 is methyl and R 3 is a N-(2-aminoethyl)-3-aminopropyl group.
5. The method of claim 1 wherein the hair treating composition is at least one hair cosmetic.
6. The method of claim 1 wherein the thermally and/or chemically damaged hair is kinky hair.
7. The method of claim 1 wherein applying heat for physically smoothing and/or shaping the treated hair comprises use of at least one heat applying device selected from the group consisting of a straightening iron, a curling iron, a blow dryer, and a heating bonnet.
8. The method of claim 7 wherein the heat applying device is used in conjunction with at least one of a comb, brush, hair pin, hair clip, head band, and hair band.
9. A method of treating thermally and/or chemically damaged hair comprising:
contacting hair which has been thermally and/or chemically damaged as a result of at least one of bleaching, dying, hair straightening, blow-drying and hair permanent treatments, the thermally and/or chemically damaged hair having a measured maximum width in the hair tip region (Lt) to the measured maximum width at the root end (Lr) ratio ((Lt)/(Lr)) of greater than about 3.7, with a hair treating composition comprising an aminosilicone of the general formula (I):
MD x D′ y M (I)
wherein:
M=R 1 R 2 2 SiO 1/2
D=R 2 2 SiO 2/2 , and
D′=R 2 R 3 SiO 2/2 , and
where R 1 is an alkyl group having 16 to 18 carbon atoms, R 2 is methyl, R 3 is N-(2-aminoethyl)-3-aminopropyl, x has a value of 650, and y has a value of 3.5, wherein the hair treating composition is an aqueous composition which is an oil-in-water emulsion;
not rinsing the hair treating composition from the chemically and/or thermally damaged hair that has been treated with the hair treating composition; and,
applying heat for physically smoothing and/or shaping the treated hair;
the hair following such treatment having lower frizziness, and the lower frizziness is a (Lt) to (Lr) ratio ((Lt)/(Lr)) of less than about 3.6.
10. A method of treating thermally and/or chemically damaged hair comprising:
contacting hair which has been thermally and/or chemically damaged as a result of at least one of bleaching, dying, hair straightening, blow-drying and hair permanent treatment, the thermally and/or chemically damaged hair having at least one of a measured maximum width in the hair tip region (Lt) to the measured maximum width at the root end (Lr) ratio ((Lt)/(Lr)) of greater than about 3.7, with a hair treating composition comprising
a) an aminosilicone of the general formula (I):
MD x D′ y M (I)
wherein:
M=R 1 R 2 2 SiO 1/2
D=R 2 2 SiO 2/2 , and
D′=R 2 R 3 SiO 2/2 , and
where R 1 is an alkyl group having 12 to 50 carbon atoms, R 2 is a substituted or un-substituted hydrocarbon group having 1 to about 6 carbon atoms, R 3 is a 3-aminopropyl group and/or a N-(2-aminoethyl)-3-aminopropyl group, x has a value of 50 to about 1,500, and y has a value of 3.5 to about 40, and
b) one or more quaternary ammonium salts in an amount of from 0.1% to 5% by weight to the total weight of the composition.