申请人:L'Oreal
公开号:US05516942A1
公开(公告)日:1996-05-14
A N1,N4-dihydroxyethylated 2-nitro-p-phenylenediamine of formula (I), wherein R is C3-4 aklyl, and cosmetically acceptable salts thereof, for use in direct dyeing to give blue through purple shades which are wash-fast, light-fast, weatherproof and sweat resistant, and optionally combined with yellow and optionally read or orange-coloured dyes to give natural hues.
公式(I)中的N1,N4-二羟乙基化2-硝基-p-苯二胺,其中R是C3-4烷基,以及其在直接染色中的美容上可接受的盐,用于产生蓝色到紫色的色调,这些色调具有耐洗、耐光、防水和耐汗的特性,并且可以与黄色和可选的红色或橙色染料结合,以产生自然色调。