Reactive dyes, process for their preparation and the use thereof
AssigneeCiba-Geigy Corporation
InventorsAthanassios Tzikas, Claudia Carisch
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Abstract
Reactive dyes of formula ##STR1## wherein Z is a group of formula --CH.dbd.CH.sub.2 or --CH.sub.2 --CH.sub.2 --Y, and Y is a leaving group, and K is a radical of formula ##STR2## wherein X is a radical of formula ##STR3## Hal is halogen; and n is 1, 2, 3 or 4; R is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl; R.sub.1 is amino or hydroxyl; R.sub.2 is methyl or carboxyl; and R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, halogen or carboxyl, are particularly suitable for dyeing or printing cellulosic fiber materials or natural or synthetic polyamide fiber materials in high tinctorial yield, and give dyeings and printings with good fastness properties.
Claims4
A reactive dye of formula ##STR43## wherein X is a radical of formula ##STR44## and Hal is bromine, and
- Z is a group of formula --CH.dbd.CH.sub.2 or --CH.sub.2 --CH.sub.2 --Y, and Y is a group of formula --Cl, --OSO.sub.3 H or --OCO--CH.sub.3.
Dependencies are inferred from the claim text.