# US 10,478,389 B2 · Hair-dye composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,389 B2 - Document ID: US10478389B2 - Status: Granted - Kind: B2 - Application number: 15/316,631 - Filed: 2015-06-05 - Published: 2017-07-13 - Granted: 2019-11-19 - Earliest claimed: 2014-06-06 - Assignees: Kao Corporation - Applicants: Kao Corporation - Inventors: Masayoshi Nojiri - Web page: https://patentgrep.com/patent/US10478389B2 ## CPC - A61K 8/49: containing heterocyclic compounds - A61K 8/19: containing inorganic ingredients - A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain} - A61K 8/41: Amines - A61K 8/43: Guanidines - A61K 8/494: {with more than one nitrogen as the only hetero atom} - A61K 8/72: containing organic macromolecular compounds - A61Q 5/065: {Preparations for temporary colouring the hair, e.g. direct dyes} - A61Q 5/10: Preparations for permanently dyeing the hair - A61K 2800/4322: in preparations for temporarily coloring the hair further containing an oxidizing agent - A61K 2800/4324: in preparations for permanently dyeing the hair - A61K 2800/5426: cationic - A61K 2800/596: Mixtures of surface active compounds - A61K 2800/805: Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95 - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS ## Abstract A hair dye composition comprising the following components (A) and (B), in which the mass ratio of the component (B) to the component (A), (B)/(A), in a whole composition is 1 or more and 100 or less and the pH (25° C.) during application is 7.5 to 12: (A): one or more azo dyes selected from the group consisting of the following (A-1), (A-2) and (A-3): (B): at least one member selected from the group consisting of guanidine carbonate, guanidine hydrogen carbonate, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate and lithium carbonate. ## Claims ### Claim 1 A hair dye composition comprising the following components (A) and (B), wherein a mass ratio of a component (B) to a component (A), (B)/(A), in a whole composition is 1 to 60 and pH (25° C.) during application is 7.5 to 12: (A): one or more azo dyes selected from the group consisting of the following (A-1), (A-2) and (A-3): (B): at least one member selected from the group consisting of guanidine carbonate, guanidine hydrogen carbonate, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate and lithium carbonate. ### Claim 2 (depends on 1) The hair dye composition according to claim 1, wherein a content of the component (A) in the whole composition is 0.01 mass % or more and 5 mass % or less. ### Claim 3 (depends on 1) The hair dye composition according to claim 1, wherein a content of the component (B) in the whole composition is 0.01 mass % or more and 10 mass % or less. ### Claim 4 (depends on 1) The hair dye composition according to claim 1, further comprising a surfactant. ### Claim 5 (depends on 4) The hair dye composition according to claim 4, wherein the surfactant is at least one member selected from the group consisting of an anionic surfactant, a cationic surfactant, a nonionic surfactant, and an amphoteric surfactant. ### Claim 6 (depends on 4) The hair dye composition according to claim 4, wherein a content of the surfactant in the whole composition is 0.01 mass % or more and 30 mass % or less. ### Claim 7 (depends on 5) The hair dye composition according to claim 5, wherein the anionic surfactant is one or more member selected from the group consisting of an alkyl sulfate salt, an alkyl ether sulfate salt, a saturated fatty acid salt, and an alkyl ether carboxylate salt. ### Claim 8 (depends on 1) The hair dye composition according to claim 1, further comprising a cationic polymer. ### Claim 9 (depends on 8) The hair dye composition according to claim 8, wherein the cationic polymer is a polymer containing a diallyl quaternary ammonium salt as a building block. ### Claim 10 (depends on 8) The hair dye composition according to claim 8, wherein a content of the cationic polymer in the whole composition is 0.01 mass % or more and 5 mass % or less. ### Claim 11 (depends on 1) The hair dye composition according to claim 1, further comprising a higher alcohol having 12 or more carbon atoms. ### Claim 12 (depends on 11) The hair dye composition according to claim 11, wherein a content of the higher alcohol is 3 mass % or more and 11 mass % or less. ### Claim 13 (depends on 1) The hair dye composition according to claim 1, further comprising 2-amino-2-methylpropanol. ### Claim 14 (depends on 1) A method for dyeing hair, comprising: applying the hair dye composition according to claim 1, allowing the composition to stand for 1 to 60 minutes and washing away the composition. ### Claim 15 A hair dye composition comprising the following components (A) and (B), wherein a mass ratio of a component (B) to a component (A), (B)/(A), in a whole composition is 5 to 60 and pH (25° C.) during application is 7.5 to 12: (A): one or more azo dyes selected from the group consisting of the following (A-1), (A-2) and (A-3): (B): at least one member selected from the group consisting of guanidine carbonate, guanidine hydrogen carbonate, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate and lithium carbonate. ### Claim 16 (depends on 1) The hair dye composition according to claim 1, wherein the mass ratio of a component (B) to a component (A), (B)/(A), in a whole composition is 20 to 60 and pH (25° C.) during application is 7.5 to 12. ### Claim 17 (depends on 15) The hair dye composition according to claim 15, wherein (A) is (A-2). ### Claim 18 (depends on 1) The hair dye composition according to claim 1, wherein (A) is (A-2).