申请人:KAO CORPORATION
公开号:EP0441263A1
公开(公告)日:1991-08-14
A dye composition for keratinous fibers is discosed. The composition comprises a developing substance and, as a coupling substance, a 3,5-diaminopyridine derivative of the following formula (I),
wherein R¹ is an alkoxy group or a group
wherein R² and R³ may be the same or different and individually represents a hydrogen atom or a hydroxyalkyl group, R⁴ a hydroxy, alkoxy, or hydroxyalkyl group, and n is a number of 1-4; or a salt thereof. The composition is capable of dyeing keratinous fibers such as hairs in blue color with a high vividness and with resistances to the light, color change, and discoloration due to shampooing.
本发明公开了一种用于角质纤维的染料组合物。该组合物包括显影物质和作为偶联物质的下式(I)的 3,5-二氨基吡啶衍生物、
其中 R¹ 是烷氧基或基团
其中 R² 和 R³ 可以相同或不同,各自代表氢原子或羟烷基,R⁴ 是羟基、烷氧基或羟烷基,n 是 1-4 的数字;或其盐。该组合物能够将毛发等角质纤维染成鲜艳的蓝色,并具有耐光性、耐色变性和耐洗发变色性。