| 摘要 |
Cationic imidazole azo dyes are new. Cationic imidazole azo dyes of formula (I) and (II) are new. [Image] A, A1group of formula (III): R1, R2H or (substituted) 1-4C alkyl or together complete a 5- to 7-membered ring; Z1residue of an aromatic diamine; Z2residue of an aliphatic diamine; KK : residue of a coupling component; R3, R4H or (substituted) 1-4C alkyl; R5, R6H or (substituted) 1-4C alkyl or 1-4C alkoxy; and An : colorless anion. Independent claims are also included for the following: (1) processes for preparing (I); (2) a process for dyeing hair by treatment with (I); (3) a process for dyeing paper by treatment with (I); (4) colored paper produced by process (3); and (5) dye mixtures comprising (I) and a cationic copper phthalocyanine dye. - |
