| 摘要 |
Provided is a hair dye composition containing a dissociative direct dye (1): (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.
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