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US 4,049,704 AGranted
2-Amino-1-sulfonaphthalene containing acylaminomethyl substituent
AssigneeBayer Aktiengesellschaft
InventorHorst Jager
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Abstract
Azo reactive dyestuffs which in the acid form correspond to the formula ##STR1## wherein R denotes hydrogen or lower alkyl, W denotes a direct bond or a bridge member, Z denotes a reactive group and A denotes the radical of a coupling component, and their use for the dyeing and printing of materials containing hydroxyl groups or amide groups as well as for the wash-fast dyeing and printing of natural or regenerated cellulose.
Claims3
Aminonaphthalenesulphonic acid, which in the form of the free acid, corresponds to the formula ##STR23## wherein R is hydrogen or lower alkyl;
- and
- W is a direct bond or a bridge member selected from the group consisting of ##STR24## in which the N atoms of the bridge member is attached to --CH.sub.2 -- group in the formula.
Dependencies are inferred from the claim text.