Bleaching and dyeing; fluid treatment and chemical modification – Dye concentrate composition wherein an additional amount of...
Patent
1983-02-22
1984-05-15
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye concentrate composition wherein an additional amount of...
8549, D06P 6700, C09B 6200
Patent
active
044485832
ABSTRACT:
An aqueous, liquid fiber-reactive dye composition which is stable to decomposition is disclosed. The composition consists essentially of 5 to 45% by weight of a water-soluble, fiber-reactive dyestuff having from 1 to 3 .beta.-sulfatoethylsulfonyl (--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H) groups, or a mixture of such dyestuffs; 0 to 10% by weight of water-soluble inert inorganic salt; and 45 to 95% by weight of water. Said liquid dye composition must have a pH of about 2.5 to about 4.5 and must be substantially free of buffer substances. The liquid dye composition may be stored for long periods of time at 0.degree. to 50.degree. C. with substantially reduced decomposition to the vinylsulfonyl dye form.
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American Hoechst Corporation
Clingman A. Lionel
Crall Hugh C.
Williams Stephen P.
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