Abstract:
R represents hydrogen or lower alkyl, R'' and R'''' represent hydrogen, lower alkyl or phenyl and m represents the integer 1 or 2.
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 watersoluble 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