Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1976-06-29
1978-05-02
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 7, 8 41A, 8 41B, 8 41C, 8168A, 8168AA, 8168B, 8168CA, 8177AB, 8178R, 8178E, 260156, 260169, 260174, C09B 2700, C09B 2936
Patent
active
040872440
ABSTRACT:
Disclosed are disazo and trisazo dyes free of sulfo groups which contain two 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2 coupling component radicals, preferably dyes of the formula ##STR1## wherein R is a tetrazo component radical,
REFERENCES:
patent: 3852261 (1974-12-01), Steinemann
Bird, C. L. and Bostow, W. S., "The Theory of Coldration of Textiles" (Dyers Company Publications Trust) 1975, pp. 143-159.
Greve Manfred
Moser Helmut
Clingman A. Lionel
Kassenoff Melvyn M.
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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