Basic azo dyes with a coupling component of the hydroxynaphthalenecarboxylic acid series

Abstract

Basic azo dyes useful for dyeing or printing polymeric material have the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkanoylamino, R.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or a radical of the formula CO-X, and X is hydroxyl, C.sub.1 -C.sub.4 -alkoxy, amino, mono- or di(C.sub.1 -C.sub.6 -alkyl)amino or a radical of the formula ##STR2## where n is 0 or 1, R.sup.3, R.sup.4 and R.sup.5 are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, R.sup.6 is hydrogen or C.sub.1 -C.sub.4 -alkyl, L is C.sub.2 -C.sub.6 -alkylene, and An.sup..crclbar. is one equivalent of an anion, with the proviso that at least one basic or quaternary radical is present in the molecule.

Dependencies are inferred from the claim text.