Hair-treatment composition and hair-treatment method using same
AssigneeHoyu Co., Ltd.
InventorMasakatsu Hata
Life of this patent
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Abstract
Provided is a hair-treatment composition containing an amphoteric surfactant having a structure represented by general formula (1) below, and a sugar nonionic surfactant. In general formula (1), R1 represents an alkyl group the carbon number of which is 6 to 20; R2 represents a methyl group, an ethyl group, or a hydroxyethyl group; R3 represents a methyl group, an ethyl group, or a —CH2COOH group; and n is an integer from 1 to 3.
Claims4
A hair-treatment composition applied to hair in a wet state immediately after the hair is dyed with an oxidative hair dye, comprising:
- (A) an amphoteric surfactant having a structure represented by the following general formula (1)
- (wherein R1 represents an alkyl group the carbon number of which is 6 to 20;
- R2 represents a methyl group, an ethyl group, or a hydroxyethyl group;
- R3 represents a methyl group, an ethyl group, or a —CH2COOH group;
- and n is an integer from 1 to 3);
- and
- (B) a sugar nonionic surfactant.
A hair-treatment method comprising applying a hair-treatment composition to hair in a wet state immediately after the hair is dyed with an oxidative hair dye, wherein the hair-treatment composition comprises:
- (A) an amphoteric surfactant having a structure represented by the following general formula (1)
- (wherein R1 represents an alkyl group the carbon number of which is 6 to 20;
- R2 represents a methyl group, an ethyl group, or a hydroxyethyl group;
- R3 represents a methyl group, an ethyl group, or a —CH2COOH group;
- and n is an integer from 1 to 3);
- and
- (B) a sugar nonionic surfactant.
Dependencies are inferred from the claim text.