| abstract |
Provided is a hair dye composition containing a direct dye ( 1 ). This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a small change in the color tone of the dye after storage. n n n wherein, ring A may represents a benzene ring which may have a substituent or the like, B represents an aryl or heterocyclic group, D represents N or CR 4 (wherein R 4 represents H or alkyl), E represents NR 5 , CR 6 R 7 or CR 6 ═CR 7 (wherein R 5 represents alkyl or the like, and R 6 and R 7 each represents H or alkyl) or, O or S, R 1 represents alkyl or the like, and n stands for 0 or 1, with the proviso that at n=0, R 2 and R 5 form, when taken together with N—C—C, a heterocycle, or R 2 is bonded to B, thereby forming a heterocycle and at n=1, R 2 and R 3 form, when taken together with C═D—N, a heterocycle, and X − represents an anion. |