Oxidation hair dyes based upon tetraaminopyrimidine developers and mono- and dialkyl -m- dihydroxy benzene couplers

摘要

An aqueous hair dye preparation comprising an oxidation dyestuff combination of a developer component consisting of a tetraaminopyrimidine derivative or a water-soluble acid addition salt thereof and a coupler component consisting of a mono- and/or dialkyl-m- dihydroxybenzene, wherein the alkyl radical has 1-4 carbon atoms; as well as a process for dyeing hair by utilizing this oxidation dyestuff combination.