Process of dyeing keratinous fibers with a mono- or di-hydroxyindole and a non-oxidative aromatic carbonyl derivative and dyeing agent

摘要

The invention relates to a process for dyeing keratinous fibres, wherein there is applied on the fibres: … …  a) at least one composition (A) containing, in a medium suitable for dyeing, at least one mono- or dihydroxyindole, this application being preceded or followed by the application of …  b) at least one composition (B) containing, in a medium suitable for dyeing, at least one aromatic carbonyl derivative chosen from hydroxyacetophenones, hydroxybenzophenones, 2-hydroxy-1,4-benzoquinones, hydroxy-1,4-naphthoquinones, amino-1,4-naphthoquinones, hydroxy-9,10-anthraquinones and amino-9,10-anthraquinones. … …??It also relates to the dyeing agents for carrying it out.