Back to results
US 5,611,821 AGranted
Black reactive dye composition
AssigneeEverlight USA, Inc.
InventorsHuei C. Huang, Sheue R. Lee
Life of this patent
Estimating the term…
Abstract
A black reactive dye composition comprising a black reactive dye of the formula (I) and multiple mono ##STR1## azo reactive dye. The black reactive dye composition is suitable for exhaust dyeing, printing, discharge printing and continuous dyeing.
Claims8
A black reactive dye composition comprising:
- (a) a black reactive dye of the formula (I);
- ##STR15## (b) a mono azo reactive dye of the formula (II) ##STR16## wherein X is --CH.dbd.CH.sub.2 or CH.sub.2 CH.sub.2 W, W is --OSO.sub.3 H, Y is hydrogen, hydroxyl, or amino;
- and
- (c) at least one mono azo reactive dye selected from the formula (III) and (IV) ##STR17## wherein X is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 W, W is --OSO.sub.3 H, each of P and Q independently is hydrogen, methyl, ethyl, n-propyl, amino or acetamide, Z is methyl, ethyl, n-propyl or carboxyl, and SO.sub.2 X in each of Formulas (I), (II), and (III) is at para position.
1 more element
Dependencies are inferred from the claim text.