| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair dye composition causing no deterioration in its dyeing affinity and having a color fastness during preservation even under basic pH, capable of dying the hair to deep natural color tone from brown to black, and excellent in light fastness, shampooing fastness and subbing fastness. SOLUTION: This hair dye composition comprises (A) at least one direct dye among those of respective formulas (1) to (7) (Y is -CH=,-CR2= or -N=; R, R' and R1 to R7 are each a lower alkyl or the like, or R5 and R6 are bound to each other to from a 5- or 6-membered ring together with the adjacent N atom and the C atom of the benzene ring; K is the residue of an aniline-based, phenolic or heterocyclic coupling component; K1 is an amino group-substituted aromatic compound residue or nitrogen-containing heterocyclic compound residue; and An- is an anion) and (B) at least one dye among Basic Blue 7, Basic Blue 26, etc.
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