Kao Corporation

Naohisa Kure

Yuji Hirano

Takashi Itou

Takayoshi Kajino

Yoshiko Tabata

Kenichi Matsunaga

Masahiko Ogawa

Takashi Oda

Toru Yoshihara

Jiro Kawase

Koji Yui

Shinobu Nagase

Akira Fujiu

Akira Yoshimatsu

Tetsuya Kawai

Noriko Saito

Nakako Sato

Aya Hirano

Hiroyuki Koga

Yoshiko Ogura

Mari Takeshige

Kazuyo Watatani

Aya Miyaji

Mikako Matubara

Hair treatment composition

The invention relates to a hair treatment composition comprising (a) a guanidium salt, (b) an alkalizing agent other than the guanidium salt and (c) a silicone. The use of the hair treatment composition permits brightening the color tone of the hair or dyeing the hair in good shades from a bright shade to a deep shade. The composition scarcely damages the hair, gives off little irritating odor and has low irritativeness to the scalp.

Hair treatment composition comprising alkalizing agent

A hair treatment composition which can imparts an excellent set-retaining power to the hair while maintaining the natural hair texture. The hair treatment composition contains a polymer capable of forming a polymer film having a water vapor transmission coefficient, which is determined on the basis of a water vapor transmission rate measured in accordance with 'Testing Methods for Determination of Water Vapor Transmission Rate of Moisture-proof Packaging Materials' [Japanese Industrial Standard (JIS) Z0208-1976], at a temperature of 20.degree. C. under a relative humidity of 90%, of 0.8.times.10.sup.-3 g.multidot.m.sup.-1 .multidot.hr.sup.-1 or below.

An intermediate treatment composition for permanent wave, comprising at least one carbonate and/or at least one hydrogencarbonate. When the hair is treated with the intermediate treatment composition for permanent wave between treatments with the first and second compositions, mixed disulfides formed in the hair by the treatment with the first composition can be cleaved. Therefore, the wave-forming rate can be enhanced, and damage to the hair can also be prevented.

Intermediate treatment composition for permanent wave

An organopolysiloxane which generates intramolecular or intermolecular cross-linking based on dipole-dipole interaction, hydrogen bonding or ion bonding, and which is not ruptured or plastically deformed at an extension ratio no more than 15% at a temperature of 20.degree. C. under relative humidity of 65%; and a method of setting hair using the same. Hair which is set by the method retains the given shape over time, and the organoplysiloxane imparts a soft touch to the hair. In addition, the shape given by the setting treatment can be easily restored to the original shape by ordinary shampooing.

Organopolysiloxanes and a method of setting hair using the same

Hair cosmetic composition

A curly hair-straightening composition is disclosed, which comprises: (A) from 1 to 20% by weight of one or more keratin-reducing substances selected from the group consisting of thioglycolic acid, thioglycolic acid derivatives, cysteine, N-acylcysteines, salts thereof, thioglyceryl alkyl ethers, mercaptoalkylamides, sulfites and hydrogensulfites; (B) one or more alcohols selected from the group consisting of monohydric alcohols having a straight-chain or branched alkyl group carrying 3 or 4 carbon atoms and dihydric or trihydric alcohols having a straight-chain or branched alkyl group having 4 to 6 carbon atoms; and (C) water; wherein the weight ratio of the component (B) to the component (C) is from 1:3 to 3:1. Further, a method for straightening curly hair by using this composition is also disclosed. The curly hair-straightening composition of the present invention can permanently and sufficiently straighten natural curly hair or frizzy hair without causing any damage on the hair.

Curly hair-straightening composition

Composition for treating keratinous fibers

A two-pack hair treatment composition comprising a first lotion containing a reducing substance (a) and a cationic polymer (b) and a second lotion containing an anionic surfactant or amphoteric surfactant (c) and a lubricant (d), wherein the first lotion is applied to the hair first and then the second lotion is applied thereto. The process of the present invention for treating the hair with the above-described two-pack hair treatment composition comprises treating the hair with the first lotion, leaving the hair to stand for a predetermined period of time and, if necessary, subjecting it to intermediate rinsing, applying the second lotion to the hair, leaving the hair stand again for a predetermined period of time, and finally rinsing the hair.

Two-pack hair treatment composition and process for treating hair

A hair treating composition comprising one or more thioglyceryl ethers provides effective wave formation, with a minimized mercapto smell and minimized irritation to the skin.

Hair treating composition

A hair treatment composition Which comprises (A) 3 to 10% by weight, calculated as cysteine, of cysteine or its salt, (B) a saccharide or a polyhydric alcohol which has 4 to 20 carbon atoms, has 3 or more hydroxyl groups in the molecule, and which has no aldehyde group or ketone group, with the proportion by weight, (B)/(A) being less than 3.

Growing community of inventors

Tokyo, Japan

Naohisa Kure