Kao Corporation

Kazuhiro Okada

Hiroyuki Fujinuma

Tomohito Koshika

Masahiko Ogawa

Takashi Matsuo

Takeshi Iizaki

Hiromi Saimiya

Hajime Miyabe

Satoshi Onitsuka

Makoto Iijima

Mitsuhiko Yamamoto

The present invention is a method for hair dyeing or bleaching by discharging in a foam from a squeeze containera mixed solution of a first agent Aand a second agent Aof a two-part hair dye or bleach composition to apply on the hair. In the present invention, the squeeze container which includes a container bodyand a squeeze foameris used as the squeeze container. At least one of the first agent Aor the second agent Acontains a foaming agent. The mixed solution of the first and second agents has a viscosity (25&#xb0; C.) of from 1 mPa&#xb7;s to 100 mPa&#xb7;s. The first agent Aand the second agent Aare mixed in the container bodyso as not to produce a foam. Squeezing is carried out with the squeeze containerstood upright so that the mixed solution Adoes not reach an air induct pathof the squeeze foamer. As a result, the mixed solution of the first and second agents of the two-part hair dye or bleach composition can be stably discharged in a fine foam using a squeeze container.

Hair dyeing or bleaching method

There is provided a head hair dyeing method using a two-part hair dye composition which contains a first part containing an alkali agent, a second part containing hydrogen peroxide and a non-aerosol type foamer container for discharging a mixture solution of the first part and the second part as foam, the composition containing a surfactant in at least one of the first part and the second part, the method including discharging the mixture solution as foam, applying the foam to the head hair, and then re-foamed on the head hair.

Head hair dyeing composition

Head hair dyeing method

A hair treatment method entailing sequentially (i) preparing a hair cosmetic by mixing a first agent containing an alkali agent and a second agent containing hydrogen peroxide to form a mixed liquid, (ii) discharging the mixed liquid in the form of a foam from a foamer vessel without a propellant, (iii) applying the mixed liquid to hair, (iv) allowing the mixed liquid to stand for 3 to 60 minutes; and (v) rinsing the mixed liquid away.

Hair cosmetic product

A hair cosmetic product having a two agent hair cosmetic which contains a first agent containing an alkali agent and a second agent containing hydrogen peroxide, wherein at least one of the first and second agents contains a surfactant; and a foamer vessel which discharges a mixed liquid comprising the first and second agents in the form of foam. Another hair cosmetic product having a two agent type hair cosmetic which contains a first agent that includes an alkali agent and a second agent that includes hydrogen peroxide, and which is used after mixing the first and second agents immediately prior to use, and a foamer vessel from which a mixed liquid of the first and second agents is discharged in the form of foam.

A hair cosmetic product has a two agent type hair cosmetic which comprises a first agent containing an alkali agent and a second agent containing hydrogen peroxide, wherein at least one of the first and second agents contains a surfactant; and a foamer vessel which discharges a mixed liquid comprising the first and second agents in the form of foam. Another hair cosmetic product has a two agent type hair cosmetic which contains a first agent that includes an alkali agent and a second agent that includes hydrogen peroxide, and which is used after mixing the first and second agents immediately prior to use, and a foamer vessel from which a mixed liquid of the first and second agents is discharged in the form of foam. A surfactant is contained in the mixed liquid at an amount of 0.1 to 10 wt %, and the viscosity of the mixed liquid at 25&#xb0; C. is 1 to 300 mPa&#xb7;s.

There is provided a head hair dyeing method using a two-part hair dye composition which contains: a first part containing a first part stock solution and a propellant, the first part stock solution containing an alkali agent and a surfactant; a second part containing a second part stock solution and a propellant, the second part stock solution containing hydrogen peroxide and a surfactant; and two aerosol containers for respectively discharging the first part and the second part as foam, the method including respectively discharging the first part and the second part as foam from the containers, applying the foam mixture to the head hair, and then re-foaming the mixture on the head hair.

Provided is a two-part hair dye composition, including a first part containing an alkali agent, a second part containing hydrogen peroxide, and a non-aerosol type foamer container for discharging a mixture solution of the first part and the second part as foam, in which the mixture solution contains the following components (A) and (B): (A) 0.1 to 10% by mass of a nonionic surfactant, and (B) 0.1 to 5% by mass of a cationic surfactant, and the mass ratio of the component (A) to the component (B) (content of the component (A)/content of the component (B)) is 1 to 100.

Two-part hairdye composition

A two-part hair dye composition, including a first part containing an alkali agent, a second part containing hydrogen peroxide, and a non-aerosol type foamer container for discharging a liquid mixture of the first part and the second part as a foam, wherein the liquid mixture contains the following components (A) to (D): (A) 0.1 to 5% by mass of an alkyl sulfate or polyoxyalkylene alkyl sulfate; (B) 0.1 to 10% by mass of an alkyl polyglucoside; (C) 0.01 to 3% by mass of a dimethyldiallyl ammonium chloride-acrylamide copolymer or a dimethyldiallyl ammonium chloride-acrylamide-acrylic acid copolymer; and (D) 0.01 to 0.8% by mass of a higher alcohol.

Two-part hair dye composition

Described in the present invention is a hair dyeing method comprising treating the hair with a hair bleaching agent and then, without rinsing off the bleaching agent, with a direct hair dye. The present invention makes it possible to color the hair into a vivid color in a short time.

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Tokyo, Japan

Kazuhiro Okada