| abstract |
PROBLEM TO BE SOLVED: To provide a hair dye composition which is excellent in hair dyeing power and fastness and has a good feeling of hair after dyeing. SOLUTION: (A) a nonionic surfactant having an unsaturated hydrocarbon chain and / or a nonionic surfactant having a branched hydrocarbon chain, and (B) the following formula: (Wherein, R 1 represents a lanolin fatty acid residue or a branched alkyl group, R 2 , R 3 and R 4 represent a C 1 -C 3 alkyl group, n represents an integer of 2-3, and X Represents a halogen, ethyl sulfate or methyl sulfate.) A hair dye composition comprising a quaternary ammonium salt represented by the formula: |