Reactive dyestuffs containing urea alkylene linkage between chromophore and reactive radical

摘要

Dyestuffs are disclosed having the formula ##STR1## in which W is a reactive radical;PPD is the radical of an organic dyestuff;PP X.sub.1 is hydrogen or alkyl;P PX.sub.2 and X.sub.3 are hydrogen, alkyl, cycloalkyl, aralkyl or aryl; or X.sub.2 and X.sub.3 together are alkylene;PPAlkylene is C.sub.1 -C.sub.6 -alkylene or cycloalkylene; and n is 0 or 1.P PThe dyestuffs are used in the dyeing of textile materials containing hydroxyl groups and nitrogen, especially natural and regenerated cellulose, wool, silk, synthetic polyamide fibers and synthetic polyurethane. The dyeings obtained are, in general, distinguished by good to very good fastness properties, especially by excellent wet fastness.