Disclosed are hair color compositions comprising novel stable violet-blue to blue imidazolium azo compounds that have a simplified chromophore and high relative solubility in aqueous systems, and that are surprisingly stable under the conditions of use and storage. These compositions are useful for dyeing fibers such as hair and other keratinaceous materials. The compositions can optionally include an oxidant. Also disclosed are methods for dying keratin fibers including human hair using the disclosed hair color compositions. The methods optionally include an ability to alter the electronic charge in situ of the hair color compositions
揭示了包含新型稳定的紫蓝至蓝色
咪唑啉偶氮化合物的染发配方,该化合物具有简化的色团结构,在
水系统中具有高相对溶解度,并且在使用和储存条件下具有惊人的稳定性。这些配方适用于染色纤维,如头发和其他角蛋白材料。这些配方可以选择性地包含氧化剂。还揭示了使用所述染发配方染色角蛋白纤维,包括人类头发的方法。这些方法可以选择性地包括在原位改变染发配方的电子电荷的能力。