Kao Corporation

Yutaka Shibata

Hajime Miyabe

Takashi Matsuo

Jiro Kawase

Masahiko Sakai

Atsushi Nakashimada

Kumi Sugino

Yoshiaki Ito

Hajime Hirota

Daisuke Misu

Keiji Monda

Hidekazu Ogino

Sahoko Igarashi

Hiroko Okabe

Hideko Ishido

Naohiro Kariya

Nozomi Nagashima

Chizuru Fukami

Nozomi Hagashima

An oxidative hair bleach comprising a first pack with an alkalizing agent contained therein and a second pack with an oxidizing agent contained therein, wherein the oxidative hair bleach comprises the following ingredients (A), (B), (C), (D) and (E) in the following proportions in a whole composition after mixing the first pack and the second pack together, and has a pH of from 8 to 12:

Hair bleach

The invention provides a bleach composition or a dye composition for hair which, during use, includes a mixture of a first composition containing an alkali agent and a second composition containing an oxidizing agent, the bleach or dye composition containing (A) an organic solvent having a partition coefficient (octanol-water) (log P) at 25&#xb0; C. of 0.3-6 and a molecular weight of 200 or less, in an amount of 1-70 wt. %; (B) an organic solvent having a log P of less than 0.3, in an amount of 0-8 wt. % and less than that of component (A); (C) an alkali agent in an amount of 0.1-10 wt. %; (D) an oxidizing agent in an amount of 0.1-12 wt. % as reduced to HO; and (E) water in an amount of 20-70 wt. %, or (A) in an amount of 1-70 wt. %; (B) in an amount of 0-8 wt. % and less than that of component (A); (C) in an amount of 0.1-10 wt. %; (D) in an amount of 0.1-12 wt. % as reduced to HO; (E) in an amount of 20-70 wt. %, and (F) a cationic surfactant in an amount of 0.01-10 wt. %, and has a pH of 7.5-12 after mixing of the first composition and the second composition. The bleach or dye composition provides less offensive odor; exhibit excellent hair-bleaching power and hair-dyeing power; and exhibit excellent hair-conditioning effect during and after treatment.

Hair bleach composition and hair dye composition

A hair cosmetic composition containing (A) a cationic surfactant; (B) one or more organic solvents selected from among an N-alkylpyrrolidone, a lower alkylene carbonate, and an aromatic alcohol; (C) a lower alcohol or a lower polyol; and (D) an alkaline ingredient. The composition efficiently removes an acid hair-dye composition from the hair without causing any damage to the hair.

Hair cosmetic composition

The invention relates to a hair dye composition comprising (A) an acid dye and (B) an alkylene carbonate having 3-5 carbon atoms in total, said composition exhibiting a pH of 2-6, and having a buffer capacity of 0.007-0.5 gram equivalent/L, and to a method of dyeing hair using the hair dye composition. The hair dye composition is excellent in hair-dyeing ability without coloring the scalp and skin and has good fastness to shampoo and the like.

Hair dye composition having a particular buffer capacity and containing an alkylene carbonate

A hair cosmetic composition contains an oxyalkylenized xanthan gum in combination with at least one component selected from an oxidizing agent, a reducing agent, a film-forming polymer, an oxidation dye or an acid dye.

Hair cosmetic composition comprising an oxyalkylenized xanthan gum

Disclosed herein is a hair dye composition comprising (A) benzyloxyethanol and/or benzyl alcohol, (B) propylene carbonate and (C) an acid dye and having a pH of 2.0 to 6.0. The composition has excellent hair-dyeing ability and good fastness to shampoo.

Hair dye composition comprising acid dyes

A permanent hair dyeing composition which contains an oxidation dye precursor, a coupler, an oxyalkylenized xanthane gum, and a salt of an inorganic or organic acid, and hair dyeing processes with such compositions.

Oxyalkylenized xanthane gum thickeners in permanent hair dyeing

The detergent compositions of the present invention comprising a phosphate surfactant and an amidoamine amphoteric surfactant; a hydroxysulfobetaine, aliphatic lactylate, or aliphatic glycolate, have excellent foam characteristics such as foaming property, foaming power, and rapidity of foaming, as well as excellent low-temperature stability, detergency, and mildness to the skin and hair. Therefore, these compositions can be effectively employed for shampoos and cleaning agents for infants which require not only good detergency but also a low incidence of skin irritation.

Growing community of inventors

Tokyo, Japan

Yutaka Shibata