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US 5,936,073 AGranted
Reactive formazan dyestuffs
AssigneeEverlight USA, Inc.
InventorsDuncan Adrian Sidney Phillips, John Anthony Taylor, Wen-Jang Chen
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Abstract
The present invention provides the reactive formazan dyestuffs of the following formula (I), ##STR1## wherein m, Y, R, X.sub.1, X.sub.2, and M are defined in this document. These kinds of dyestuffs have deep-dyeing ability, and they are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp.
Claims11
A reactive formazan dyestuff of the formula (I) ##STR46## wherein:
- m is 0 or 1;
- Y is --SO.sub.2 CH.sub.2 .dbd.CH.sub.2, --SO.sub.2 C.sub.2 H.sub.4 W, --NHCOCHTCH.sub.2 T, or --NHCOCT.dbd.CH.sub.2 ;
- W is --Cl, --Br, or --OSO.sub.3 H;
- T is --OH, --Cl, --Br, or --OSO.sub.3 H;
- R is H or C.sub.1-4 alkyl;
- X.sub.1 and X.sub.2 each independent is --F, --Cl, --Br, or quaternary ammonium;
- M is Cu or Ni;
- D is ##STR47## wherein n is 0, 1 or 2;
- q and p each independent is integer from 0 to 4;
- R' is H or C.sub.1-4 alkyl.
7 more elements
Dependencies are inferred from the claim text.