Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1974-03-18
1976-01-27
Schofer, Joseph L.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 1A, 8 1B, 8163, 8 41B, 8 41C, 8 21C, C09B 100, C09B 562, D06P 382
Patent
active
039349721
ABSTRACT:
Dyeing cellulose or cellulose/polyester blends by applying unsulphonated dyestuffs containing cyclic anhydride groups, anhydride-forming dicarboxylic acid groups or half-esters or half-amides thereof, as free acids or as salts with ammonia or volatile amines, and heating the fibre until dyestuff fixation takes place.
REFERENCES:
patent: 3163635 (1964-12-01), Riat et al.
Cheetham Ian
Chokshi Vibhas
Dunkerley Kenneth
Eckersley Dennis
Greenhalgh Colin William
Clingman A. L.
Imperial Chemical Industries Limited
Schofer Joseph L.
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