Metaphenylenediamines in dyeing compositions for keratinic fibers

Abstract

Dye compositions comprising a coupler having to the formula ##STR1## in which formula R.sub.1 and R.sub.2 are identical or different and represent a hydrogen atom or an alkyl radical having 1 to 2 carbon atoms and n represents a number equal to 1 or 2 and a paraphenylenediamine. This coupler is particularly suitable for use in a dyeing composition comprising paraphenylenediamines responding to the formula ##STR2## or the corresponding acid salts; formula in which R.sub.1, R.sub.2 and R.sub.3 are identical or different and represent a hydrogen atom, an alkyl or alkoxy radical having 1 to 2 carbon atoms, R.sub.4 and R.sub.5 are identical or different and represent a hydrogen atom, a alkyl radical, hydroxyalkyl, alkoxyalkyl in which the alkoxy group comprises 1 to 2 carbon atoms, carbamylalkyl, mesylaminoalkyl, acetylaminoalkyl, ureidoaminoalkyl, carbethoxyaminoalkyl, the alkyl groups in R.sub.4 and R.sub.5 having 1 to 3 carbon atoms, with the reservation that R.sub.1 or R.sub.3 represents hydrogen when R.sub.4 and R.sub.5 do not represent a hydrogen atom.

Dependencies are inferred from the claim text.