Cationic monobenzene nitrophenylenediamines, their use in dyeing keratinous fibers, dyeing compositions comprising them and dyeing processes
申请人:L'Oreal S.A.
公开号:US06464731B1
公开(公告)日:2002-10-15
The subject of the invention is cationic monobenzene nitrophenylenediamines having at least one cationic charge delocalized over an unsaturated 5-membered polynitrogenous heterocycle, to their use as direct dye in dyeing compositions for keratinous substances, in particular for human keratinous fibers, such as the hair, to the dyeing compositions comprising them and to the dyeing processes employing these compositions.
本发明的主题是具有至少一个阳离子电荷的对苯二胺类单阳离子硝基苯胺,其电荷在不饱和的5元杂氮杂环上离域,以及它们在染料组合物中作为直接染料用于染色角蛋白物质,特别是用于人类角蛋白纤维,如头发,以及包含它们的染色组合物和使用这些组合物的染色过程。