| abstract |
Provided is a hair dye composition containing a directndye (1). This hair dye composition has markedly high hairndyeing power, has less color fade over time and undergoes ansmall change in the color tone of the dye after storage.n nwherein, ring A may represents a benzene ring which maynhave a substituent or the like, B represents an aryl ornheterocyclic group, D represents N or CR 4 (wherein R 4 nrepresents H or alkyl), E represents NR 5 , CR 6 R 7 or CR 6 =CR 7 n(wherein R 5 represents alkyl or the like, and R 6 and R 7 eachnrepresents H or alkyl) or, O or S, R 1 represents alkyl ornthe like, and n stands for 0 or 1, with the proviso that atnn=0, R 2 and R 5 form, when taken together with N-C-C, anheterocycle, or R 2 is bonded to B, thereby forming anheterocycle and at n=1, R 2 and R 3 form, when taken togethernwith C=D-N, a heterocycle, and X - represents an anion. |