Dye mixtures, and their use in dyeing polyesters

Abstract

Dye mixtures, containing dyes of the formula I ##STR1## where X is hydrogen, chlorine or bromine, R.sup.1 is hydrogen, methoxy, ethoxy or phenoxy, R.sup.2 is hydrogen, methyl, ethyl, n-propyl or iso-propyl and R is ##STR2## where R.sup.3 is allyl, methallyl, crotonyl, prenyl or benzyl, R.sup.4 is C.sub.1 -C.sub.5 -alkyl, allyl, methallyl, crotonyl, prenyl or benzyl and R.sup.4 is C.sub.1 -C.sub.5 -alkyl, the mixtures containing not less than 60% of dyes wherein R is ##STR3## or NHC.sub.2 H.sub.4 CN, from 0 to 40% of one or more dyes wherein R is ##STR4## and from 0 to 40% of one or more dyes wherein R is ##STR5## the two last-mentioned components accounting for not less than 5% of the mixture. The mixtures are exceptionally useful for dyeing polyesters.

Dependencies are inferred from the claim text.