Compositions for dyeing keratinous fibers comprising an ortho-diaminopyrazole, a coupler or direct dye, and a manganese salt, and processes for dyeing keratinous fibers with these compositions

摘要

Compositions for dyeing keratinous fibers comprising at least one an ortho-diaminopyrazole or an acid addition salt thereof and a manganese salt as well as a dyeing process using these compositions, without any oxidizing agent other than atmospheric oxygen.