Abstract:
Claimed are novel azo dyes of the formula (I) where the substituents are each as defined in the claims, their preparation, their use as dyes and as an ingredient of an ink-jet printing ink and also substrates dyed with such compounds.
Abstract:
Fibre-reactive monoazo compounds of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.
Abstract:
The invention is concerned with compounds according to the formula ##STR1## and their salts whereinR.sub.1 represents hydrogen or --SO.sub.3 H,R.sub.2 represents hydrogen, methyl, --NHCONH.sub.2 or --NHCOCH.sub.3 and,R.sub.3 represents hydrogen, C.sub.1-4 alkyl, preferably methyl or ethyl, or C.sub.1-4 alkyl substituted with CN, OH, Cl, F or --SO.sub.3 H.These compounds are useful as fiber-reactive dyestuffs in dyeing and printing hydroxy-group-containing and nitrogen-containing organic substrates.