Kao Corporation

Kao Germany Gmbh

Takeshi Iizaki

Keiji Monda

Masahiko Ogawa

Takashi Matsuo

Hiroyuki Fujinuma

Tomohito Koshika

Kazuhiro Okada

Hiromi Saimiya

Shunsuke Watanabe

Fumina Abo

Jonathan Wood

Naoki Satoh

Hajime Miyabe

Dominic Pratt

Yoshimasa Takagi

Anja Aechtner

Shinobu Nagase

Yoshimasa Okamoto

Hiroto Tanamachi

Makoto Iijima

Kristin Olsson

Kyoko Kuramoto

Kouzi Morita

Naohiro Ando

Yoshihisa Kitano

Shunsuke Watabe

Yuji Ishino

A powder hair dye composition, containing the following components (A) to (C): (A) one or more azo dyes selected from the group consisting of the following (A-1), (A-2) and (A-3), (B) an alkaline agent other than alkanolamines, and (C) 1.5 mass % or more and 40 mass % or less of solvent. 

Powder hair dye composition

A hair dyeing method including the following steps (I) and (II): step (I): mixing a first agent comprising an alkaline agent and an oxidation dye precursor, a second agent comprising an oxidizing agent, and a third agent comprising one or more dyes (A) selected from the group consisting of the following (A-1), (A-2), and (A-3), having a pH at 25&#xb0; C. of 7.5 or more and 12 or less when diluted to be 10 times by mass with water; and step (II): applying a mixed solution prepared in step (I) on hair. 

Hair dyeing method

A liquid hair dye composition comprising components (A) and (B), wherein 

Liquid hair dye composition

A liquid hair dye composition comprising the following components (A) and (B), wherein 

A liquid hair dye composition, comprising components (A) and (B), wherein the content (X) of component (A) in the composition is 1.5 mass % or more and 9.3 mass % or less, the content (Y) of component (B) in the composition is 9 mass % or more and 98.5 mass % or less, and the liquid hair dye composition satisfies the following formula (1) (with the proviso that a liquid hair dye composition which has the content of diol of 50 mass % or more and the content of water of 2 mass % or less is excluded), Y&#x2265;10.875X&#x2212;10.875 (1), (A) an azo dye of the formula (A-1), and (B) a monoalcohol and/or a diol other than alkanolamines. 

A method for treating hair, in which using as a boundary a depth X % in a range of 5% to 80% from the surface of hair toward the center along the long diameter axis extending through the center of the cross-section of hair, hair is divided into an A layer (a portion of a continuous color from the surface of hair to the depth X %) and a B layer (a portion including the center and having a continuous color different from the A layer, in which the depth from the surface of hair exceeds X %) and at least one value of &#x394;E*, &#x394;h and &#x394;C* between the color of the A layer and the color of the B layer is adjusted to 3 or more to change the hue and the color tone of hair appearance depending on viewing angle of the hair. A method for dyeing hair, having Step (I) of dyeing hair with a two-part permanent hair dye agent, and Step (II) of dyeing hair with a hair dye agent comprising a dye selected from (A-1) to (A-8). 

Method for treating hair

A hair cosmetic article includes a composition A including an alkali agent; a composition B including an oxidizing agent; a composition C including a powdery oxidation assistant; and a hair cosmetic applicator including a container part () in which a hair cosmetic material () produced by mixing the compositions A, B and C and having a viscosity of 3 to 30 Pa&#xb7;s at 30&#xb0; C., an application part () by which the hair cosmetic material () is applied to a hair-bundle, and an extension part () having a liquid-leading passage () which communicates the container part () to the application part (). The application part () includes a discharge port () and a comb part (), and the comb part () includes a plurality of comb teeth () which are disposed substantially annularly so as to surround the discharge port ().

Hair decoration article and hair dyeing and bleaching method using same

The present invention relates to an aqueous oxidative coloring composition for keratin fibers especially human hair with improved conditioning effect, improved color fastness against washing and for achieving homogeneous even coloration. The object of the present invention is an aqueous composition for coloring keratin fibers especially human hair, based on at least one oxidative dye precursor, optionally at least one coupling agent and/at least one direct dye and furthermore comprising in a cosmetically acceptable medium at least one anionic surfactant, at least one branched fatty acid and at least one quaternary ammonium surfactant.

Colouring composition

The present invention relates to a two part aqueous oxidative coloring composition for keratin fibers especially human hair with improved and homogeneous conditioning effect from root to tip, improved color fastness against washing and for achieving homogeneous even coloration. Present invention is on a two part aqueous composition for coloring keratin fibers especially human hair, characterized in that the first part A is an aqueous composition and comprises at least one oxidative dye precursor, optionally at least one coupling agent and/or at least one direct dye and furthermore comprising at least one anionic surfactant the second part Part B is an aqueous composition and comprises at least one oxidizing agent and at least one cationic polymer.

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

Present invention relates to a coloring composition for keratin fibers especially for human hair with exceptionally improved color and shade stability. Accordingly, the first object of the present invention is a coloring composition for keratin fibres especially human hair comprising, in a cosmetically acceptable medium, at least one oxidative dyestuff precursor, 1,3-bis(2,4-diaminophenoxy) propane and/or its respective salts as a coupling agent and at least one direct dye. In an especially preferred from of the present invention the coloring compositions are substantially free from mono cyclic m-phenylenediamine coupling agent. With the term 'mono cyclic m-phenylenediamine', it is meant that the compound comprises only one cyclic group, preferably a benzene ring, in its molecule.

Colouring composition for keratin fibres

Head hair dyeing method

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.

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

The present invention relates to a hair cuticle caring method or volume enhancing method, which comprises treating hair with a composition containing (A) a cationic surfactant and (B) an organic acid or salt thereof in a combination to give, when an aqueous solution containing 1 mM of each of the components is formed, 40 mN/m or less as the surface tension of the aqueous solution at 27&plusmn;0.5&deg; C. By the application of the above-described composition, the lift-up of the hair cuticle can be suppressed, the volume can be enhanced softly, moisturized but stickiness-free feeling is imparted and styling ease is improved.

Growing community of inventors

Tokyo, Japan

Takeshi Iizaki