Bicyclic fused 5-5 heteroaromatic keratin dyeing compounds with two or three heteroatoms. This invention further relates to a composition for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more bicyclic fused 5-5 heteroaromatic keratin dyeing compounds with two or three heteroatoms. This invention further relates to a method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.
具有两个或三个杂原子的双环融合 5-5 杂芳香族角蛋白染色化合物。本发明还涉及一种用于角蛋白纤维
氧化染色的组合物,该组合物包含一种适于染色的介质和一种或多种具有两个或三个杂原子的双环融合 5-5 杂芳香族角蛋白染色化合物。本发明还涉及一种对角蛋白纤维进行
氧化染色的方法,包括在有
氧化剂存在的情况下,在足以形成所需着色的时间内使用这种组合物。