Hair-dye composition
AssigneeKao Corporation
InventorMasayoshi Nojiri
Life of this patent
Estimating the term…
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.
Claims18
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.
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.
Dependencies are inferred from the claim text.