Basic dyestuffs

Abstract

Dyestuffs of the formula ##STR1## wherein F stands for an organic chromophore and Z stands for radicals of the formulae ##STR2## wherein R.sub.1 -R.sub.2 denote hydrogen, alkyl, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic structure or R.sub.2 and R.sub.3 represent an optionally substituted amino group or together form a ring or R.sub.1 with R.sub.2 and/or R.sub.3 with R.sub.4 form a ring, A.sup.(-) denotes an anion, Y denotes an anionic group, m denotes 0-2 and n denotes 1-6, and wherein the chromophore and said radicals can carry further substituents, provided that the total number of anionic substituents is smaller than the total number of quaternary and quaternizable amino groups, are used for dyeing cellulose fibres, in particular paper.

Dependencies are inferred from the claim text.