COLORANTS AZOIQUES REACTIFS, LEUR PREPARATION ET LEUR UTILISATION POUR LA TEINTURE ET L'IMPRESSION

摘要

Azo dyes of the formula (1) wherein D is a disulfonaphthyl-(2) residue, K is a naphtalene or benzene residue, R is hydrogen, and X is hydrogen, are especially suitable for dyeing of cellulosic materials of fibrous structure, they have a good exhaustion capacity and excellent dye fixation.