FAST DYEING CELLULOSE FIBROUS MATERIALS WITH REACTIVE WATER-SOLUBLE TRIFLUOROCYCLOBUTENYL AZO DYES

摘要

A process for producing fast dyeings or prints on cellulose fibrous materials, which comprises treating the said fibrous materials in any sequence with an alkaline agent and a water-soluble dyestuff of the formula IN WHICH Z represents the radical of a water-soluble organic dyestuff molecule being linked to the identified side grouping directly or via the bridging member R represents hydrogen or lower alkyl, R' and R'' represent hydrogen, lower alkyl or phenyl and m represents the integer 1 or 2.