| abstract |
Reactive dyes of the formula wherein K is the remainder of a coupling component of the aminohydroxynaphthalenesulfonic acid series, D, the remainder of a diazo component coupled in proximity to the H 2 N group of K, D 2 the remainder of a diazo component coupled in proximity to the HO group of K, R, hydrogen or a optionally substituted C 1-4 alkyl, and X is the vinyl, β-sulfatoethyl, β-thiosulfatoethyl, β-chloroethyl or β-acetoxyethyl group, are particularly suitable for dyeing and printing cellulosic fiber materials the cold retention process and give, with high dyeing yield, dyeings and prints with good fastness properties. |