申请人:Javet Manuela
公开号:US20070231283A1
公开(公告)日:2007-10-04
The present patent application relates to a process for bleaching keratin fibers which is characterized by applying to the fiber a ready-to-use agent having a basic pH and containing:
a) at least one bleach booster according to the general formula (I)
wherein R1 is a hydrogen, R2 is hydrogen, a substituted or unsubstituted C1- to C12-alkyl group, a substituted or unsubstituted C1- to C12-monohydroxy-alkyl group, a substituted or unsubstituted C2- to C12-polyhydroxy alkyl group, or a substituted saturated, unsaturated or aromatic 4- to 8-membered carbocycle or heterocycle, and R3 is a OR-Group, with R being equal to hydrogen, an ammonium group, or an alkali metal, or an earth alkali metal atom; b) at least one appropriate type-2 bleach-stable direct dye; and c) at least one oxidant, and after an exposure time of 5 to 60 minutes at a temperature of 10 to 70° C. rinsing the fiber with water as well as the use of special type-2 bleach-stable direct dyes for acquiring a natural looking bleaching of keratin fibers, particularly human hair, without undesired undertones.
本专利申请涉及一种漂白角蛋白纤维的方法,其特征在于将具有碱性pH值的即用型剂涂覆于纤维上,该剂含有:a)至少一种漂白增强剂,其一般式为(I),其中R1为氢,R2为氢、取代或未取代的C1-C12烷基、取代或未取代的C1-C12单羟基烷基、取代或未取代的C2-C12多羟基烷基或取代的饱和、不饱和或芳香4-8成员碳环或杂环,R3为OR-基团,其中R等于氢、铵基或碱金属或碱土金属原子;b)至少一种适当的2型漂白稳定直接染料;以及c)至少一种氧化剂,经过5至60分钟的暴露时间,在10至70℃的温度下,用水冲洗纤维,以及使用特殊的2型漂白稳定直接染料,以获得天然外观的角蛋白纤维漂白,特别是人类头发,无不良底色。