Abstract: 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.

Abstract: 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° 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.

Abstract: A liquid hair dye composition comprising components (A) and (B), wherein the content (X) of the component (A) in the composition is 1.5 mass % or more and 6.5 mass % or less, the content (Y) of the component (B) in the composition is 9 mass % or more and 98.5 mass % or less, and the composition satisfies the following equation (1): Y?(91/6)X?(91/3)??(1); with a proviso that a composition in which the diol content is 50 mass % or more and the water content is 2 mass or less in the liquid hair dye composition is excluded.

Abstract: 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?10.875X?10.875 (1), (A) an azo dye of the formula (A-1), and (B) a monoalcohol and/or a diol other than alkanolamines.

Abstract: A liquid hair dye composition comprising the following components (A) and (B), wherein the content (X) of the component (A) in the composition is 1.5 mass % or more and 5.16 mass % or less, the content (Y) of the component (B) in the composition is 9 mass % or more and 98.5 mass % or less, the composition satisfies the following equation (1) (with a proviso that a composition in which the diol content is 50 mass % or more and the water content is 2 mass % or less in the liquid hair dye composition is excluded). Y?22.75X?22.

Abstract: 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 ?E*, ?h and ?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).

Abstract: 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° 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.

Abstract: 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?10.875X?10.875 (1), (A) an azo dye of the formula (A-1), and (B) a monoalcohol and/or a diol other than alkanolamines.

Abstract: A liquid hair dye composition comprising the following components (A) and (B), wherein the content (X) of the component (A) in the composition is 1.5 mass % or more and 5.16 mass % or less, the content (Y) of the component (B) in the composition is 9 mass % or more and 98.5 mass % or less, the composition satisfies the following equation (1) (with a proviso that a composition in which the diol content is 50 mass % or more and the water content is 2 mass % or less in the liquid hair dye composition is excluded). Y?22.75X?22.

Abstract: A liquid hair dye composition comprising components (A) and (B), wherein the content (X) of the component (A) in the composition is 1.5 mass % or more and 6.5 mass % or less, the content (Y) of the component (B) in the composition is 9 mass % or more and 98.5 mass % or less, and the composition satisfies the following equation (1): Y?(91/6)X?(91/3)??(1); with a proviso that a composition in which the diol content is 50 mass % or more and the water content is 2 mass or less in the liquid hair dye composition is excluded.

Abstract: 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 ?F*, ?h and ?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).

Abstract: 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.

Abstract: 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 (4) in which a hair cosmetic material (3) produced by mixing the compositions A, B and C and having a viscosity of 3 to 30 Pa·s at 30° C., an application part (2) by which the hair cosmetic material (3) is applied to a hair-bundle, and an extension part (5) having a liquid-leading passage (51) which communicates the container part (4) to the application part (2). The application part (2) includes a discharge port (21) and a comb part (23), and the comb part (23) includes a plurality of comb teeth (22) which are disposed substantially annularly so as to surround the discharge port (21).

Abstract: 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.

Abstract: 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 (4) in which a hair cosmetic material (3) produced by mixing the compositions A, B and C and having a viscosity of 3 to 30 Pa·s at 30° C., an application part (2) by which the hair cosmetic material (3) is applied to a hair-bundle, and an extension part (5) having a liquid-leading passage (51) which communicates the container part (4) to the application part (2). The application part (2) includes a discharge port (21) and a comb part (23), and the comb part (23) includes a plurality of comb teeth (22) which are disposed substantially annularly so as to surround the discharge port (21).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.