CATIONIC DYES, THEIR PREPARATION AND THEIR USE IN THE DYEING OF CATIONICALLY DYEABLE FIBRES AND PAPER

摘要

Cationic dyestuffs of the general formula IMAGE wherein R represents hydrogen or an alkyl radical with a maximum of 8 C atoms, which is optionally substituted by non-ionic radicals, R1 represents hydrogen or an alkyl radical with a maximum of 4 C atoms, which is optionally substituted by non-ionic radicals, and An- represents an anion, and wherein the benzene rings and naphthalene rings can contain non-ionic radicals which are customary in dyestuff chemistry, are used for dyeing natural and synthetic cationically dyeable fibres, and paper.