| abstract |
Provided is a hair dye composition containing a dissociative direct dye (1): n n n n n n n n n n (wherein Ar represents an aromatic group or heterocyclic aromatic group which may have a substituent, Ar′ represents an aromatic group which may be substituted by an alkyl group or an electron drawing group, or a specific heterocyclic aromatic group, and W represents an electron drawing group); or salt thereof. |