PROCESS FOR DYEING KERATIN MATERIALS USING A DIRECT DYE AND AN UNSATURATED HETEROCYCLIC SALT, AND COMPOSITION COMPRISING SAME

The present invention relates to a cosmetic process for treating keratin materials, in particular keratin fibers, preferably human keratin fibers such as the hair, using a) one or more direct dyes and b) one or more particular heterocyclic salts, to a composition comprising ingredients a) and b) and to a kit comprising a) and b). 本发明涉及：一种用于处理角蛋白材料、特别是角蛋白纤维、优选人类角蛋白纤维如头发的美容方法，该美容方法使用a)一种或多种直接染料和b)一种或多种特定杂环盐；一种包含成分a)和b)的组合物以及一种包含a)和b)的试剂盒。