Dye compositions for dyeing keratin fibers, comprising at least one oxidation base and at least one coupler chosen from 6-alkoxy-2,3-diaminopyridine derivatives of formula (I) as defined herein and the addition salts thereof; the use of the compositions for dyeing keratin fibers; and the dyeing processes using the compositions; as well as at least one entity chosen from novel 6-alkoxy-2,3-diaminopyridine compounds and their addition salts thereof that are useful as couplers.
染色角蛋白纤维的
染料组合物,包括至少一种氧化剂和至少一种
偶联剂,所述
偶联剂选择从以下公式(I)所定义的6-烷氧基-2,3-二
氨基
吡啶衍生物和其加成盐中选择;使用该组合物染色角蛋白纤维的方法;使用该组合物进行染色的过程;以及选择自新的6-烷氧基-2,3-二
氨基吡啶化合物和其加成盐,作为
偶联剂的至少一个实体。