Process for dyeing and printing materials containing hydroxy and/or carbonamide groups

摘要

Process for dyeing and printing materials contg. OH and/or carbonamide gps. uses a reactive azo dye of formula (I): SO2X, SO2X1 and the second SO3H gp. in the amino-naphthol-disulphonic acid are each in the 3- or 4-position; X, X<1> = CH=CH2 or CH2CH2S; Z = a gp. released under dyeing conditions. Also claimed are a method of producing (I) granulates; (I) powder, granulate and aq. soln.; and substrates dyed or printed with (I).