Reactive dyes, process for their preparation and the use thereof
AssigneeCiba-Geigy Corporation
InventorsAthanassios Tzikas, Claudia Carisch
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AssigneeCiba-Geigy Corporation
InventorsAthanassios Tzikas, Claudia Carisch
Estimating the term…
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 --(CH.sub.2).sub.n --Cl, ##STR3## or --CH.dbd.CH.sub.2 ; 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 fibre materials or natural or synthetic polyamide fibre materials in high tinctorial yield, and give dyeings and printings with good fastness properties.
A reactive dye of formula ##STR43## wherein Z is a group of formula --CH.dbd.CH.sub.2 or --CH.sub.2 --CH.sub.2 --Y, Y is a leaving group, and
Dependencies are inferred from the claim text.