申请人:Eliu Paul Victor
公开号:US20050000034A1
公开(公告)日:2005-01-06
The present invention relates to novel cationic yellow dyes of formula (1) wherein R
1
and R
2
are each independently of the other a C
1
-C
8
alkyl radical or an unsubstituted or substituted benzyl radical, R
3
is hydrogen, C
1
-C
8
alkyl, C
1
-C
8
alkoxy, cyanide or halide, preferably hydrogen and X is an anion, with the proviso that at least one of the substitutents R
1
is a benzyl radical and R
2
is a methyl radical, R
2
is not hydrogen, also to compositions therof, especially comprising other dyes, to processes for the preparation therof and to the use therof in the dyeing of organic material, such as keratin, wool, leather, silk, cellulose or polyamides, especially keratin-containging fibres, cotton or nylon, and preferably human hair.
本发明涉及一种新型阳离子黄色染料,其化学式为(1),其中R1和R2分别独立地为C1-C8烷基基团或未取代或取代苄基基团,R3为氢、C1-C8烷基、C1-C8烷氧基、氰基或卤素,优选为氢,X为阴离子,但至少有一个取代基R1为苄基基团,而R2为甲基基团,R2不为氢,还涉及其组合物,特别是包含其他染料的组合物,以及其制备方法和在有机材料如角蛋白、羊毛、皮革、丝绸、纤维素或聚酰胺等,特别是角蛋白含量纤维、棉或尼龙,优选为人发染色中的应用。