Disazo compounds for dyeing cellulosic fibers
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsJunji Odani, Shigeyuki Watanabe
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Abstract
Water-soluble azo compounds which, in the free acid form, are represented by the formula: ##STR1## wherein one of X and Y is hydrogen and the other is --SO.sub.3 H; one of A and B is hydrogen and the other is --SO.sub.3 H; each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group or ureido group; and each of R.sub.5 and R.sub.6 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group, chlorine, hydroxyl group or carboxyl group, and a method for dyeing cellulose fibers, blended yarn fabrics of cellulose fibers with other kinds of fibers, particularly with polyester fibers, using the said compounds.
Claims7
A water-soluble azo compound which, in the free acid form, is represented by the following formula (1):
- ##STR38## wherein one of X and Y is hydrogen and the other is --SO.sub.3 H;
- one of A and B is hydrogen and the other is --SO.sub.3 H;
- each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group or ureido group;
- and each of R.sub.5 and R.sub.6 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group, chlorine, hydroxyl group or carboxyl group.
Dependencies are inferred from the claim text.