申请人:L'Oreal
公开号:US04330292A1
公开(公告)日:1982-05-18
The invention resides in the use of the compounds having the formula given below, or an acid salt thereof, as couplers in dyeing compositions for keratin fibres which contain an oxidation base: ##STR1## in which formula n is equal to 2, 3 or 4 and R.sub.1 and R.sub.2 are identical or different and represent an alkyl group having from 1 to 4 carbon atoms.
本发明涉及使用以下公式的化合物或其酸盐作为角蛋白纤维染料组合物中的偶联剂,该组合物包含氧化剂基:##STR1## 其中公式中n等于2、3或4,R1和R2相同或不同,表示具有1至4个碳原子的烷基。