Hair cosmetic

摘要

The present invention relates to a hair cosmetic capable of giving good finger combability and manageability with no oily feeling to the hair treated therewith and dried, and to a method for producing the hair cosmetic. The hair cosmetic contains a cationized hydroxypropyl cellulose (A), an oil (B) of which the amount of dissolution in 100 g of water at 20° C. is from 0 to 1 g, and a surfactant (C), wherein the cationized hydroxypropyl cellulose (A) has an anhydroglucose-derived main chain and has a degree of substitution with cationized ethyleneoxy group of from 0.01 to 2.9 and a degree of substitution with propyleneoxy group of from 0.1 to 4.0, and the production method is for producing the hair cosmetic.

主权项

1. A method of treating hair with a hair cosmetic, comprising:
applying the hair cosmetic to hair; wherein the hair cosmetic comprises a cationized hydroxypropyl cellulose (A), an oil (B) of which the amount of dissolution in 100 g of water at 20° C. is from 0 to 1 g, and a surfactant (C), wherein the cationized hydroxypropyl cellulose (A) has an anhydroglucose-derived main chain represented by the following general formula (1), and has a degree of substitution with cationized ethyleneoxy group of from 0.22 to 1.00 and a degree of substitution with propyleneoxy group of from 0.2 to 2.7: wherein R1, R2 and R3 each independently represent a substituent having a cationized ethyleneoxy group and a propyleneoxy group represented by the following general formula (2), n indicates a mean degree of polymerization of anhydroglucose and is a number of from 464 to 1326; wherein one of Y1 and Y2 is a hydrogen atom and the other is a cationic group represented by the following general formula (3), PO represents a propyleneoxy group, p indicates the number of cationized ethyleneoxy groups ((—CH(Y1)—CH(Y2)—O—) in the general formula (2) and q indicates the number of propyleneoxy groups (—PO—) therein, each representing 0 or a positive integer; in case where both of p and q are not 0, the addition sequence of the cationized ethyleneoxy group and the propyleneoxy group is not defined, and in case where p and/or q are/is 2 or more, a binding form may be any of like a block co-polymer or like a random co-polymer; wherein R4, R5 and R6 each independently represent a linear or branched alkyl group having from 1 to 3 carbon atoms, and X− represents an anionic group, an amount of the oil (B) is 0.1 to 10% by mass based on total amount of the hair cosmetic, the oil (B) comprises a compound (B2) and a higher alcohol (B3), the compound (B2) is at least one ester compound selected from compounds represented by the following general formula (4), dialkyl carbonate compounds represented by the following general formula (5), and dialkyl ether compounds represented by the following general formula (6):
R7O-(AO)m—COR8  (4) wherein R7 represents a hydrocarbon group having from 6 to 20 carbon atoms and containing at least one substituted or unsubstituted aromatic ring, R8 represents a linear or branched alkyl or alkenyl group having from 1 to 25 carbon atoms, AO represents an alkyleneoxy group having from 2 to 4 carbon atoms, m indicates a number of from 1 to 50, and in case where m is 2 or more, m's AO groups may be the same or different;
R9O(CH2CH2O)rCO(OCH2CH2)s—OR10  (5) wherein R9 and R10 each represent a linear or branched alkyl and/or alkenyl group each having from 6 to 22 carbon atoms; r and s each indicate 0 or a number of from 1 to 50;
R11—O—R12  (6)wherein R11 and R12 each represent a linear or branched alkyl and/or alkenyl group each having from 6 to 22 carbon atoms, and
a ratio by mass of the compound (B2) to component (A) (B2/A) is 1 to 10, wherein the content of the cationized hydroxypropyl cellulose (A) is from 0.1 to 1.0% by mass, and wherein the higher alcohol (B3) is at least one higher alcohol selected from the group consisting of cetyl alcohol and stearyl alcohol.