Importance

Loading Importance Indicators...

Abstract

A process for dyeing keratin fibres is disclosed which involved applying: (a) at least one dyestuff of the formula: ##STR1## in which R.sub.1 and R.sub.2 independently designate hydrogen, amino, alkylamino, --NH--aliphatic--(X).sub.m, dialkylamino or --N--(aliphatic-(X).sub.m).sub.2, R.sub.3 designates hydrogen, OH, alkoxy or --O--aliphatic-(X).sub.m 'aliphatic' designates an aliphatic radical having 2 to 4 free valencies, m designates an integer from 1 to 3 such that if m=1 X represents OH, Cl, OCH.sub.3 or OCH.sub.2 CH.sub.2 OH, or, if m designates 2 or 3, X designates OH, and R.sub.4 designates hydrogen, alkyl or halogen, with the proviso that at least one of R.sub.1, R.sub.2 and R.sub.3 is other than hydrogen, and that, if R.sub.1 and R.sub.2 are both other than hydrogen, R.sub.3 designates hydrogen, (b) at least one dyestuff of the formula: ##STR2## in which R.sub.5 designates hydrogen, amino, aminoalkyl, NH-aliphatic-(X).sub.m, N-(alkyl).sub.2, N-(aliphatic(X).sub.m).sub.2, or NHCH.sub.2 CH.sub.2 NH.sub.2, R.sub.6 designates hydrogen, OH, alkoxy, O-aliphatic(X).sub.m or O(CH.sub.2).sub.n NH.sub.2, R.sub.7 designates hydrogen, alkyl or halogen, A designates-Y-(CH.sub.2)--.sub.n, --OCH.sub.2 CHOH--CH.sub.2 -- or ##STR3## where R.sub.8 designates hydrogen or methyl, Y designates oxygen or --NH--and n is an integer from 2 to 4, and m 'aliphatic' and X are as defined above, with the proviso that, if Y designates --NH-- and R.sub.6 is other than hydrogen, R.sub.5 designates hydrogen, and, if Y is an oxygen atom, R.sub.6 designates hydrogen, the shade and chromaticity of the color obtained with the dyestuff(s) of formula (I) and the shade and chromaticity of the color obtained with the dyestuff(s) of formula (II) being such that .DELTA.H+.DELTA.C is less than or equal to 4.5

Loading the Abstract Image...

First Claim