Dyeing and printing basic dyeable textile substrates with becati

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

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8 7, 8 41A, 8 41B, 8 41C, 8168A, 8168AA, 8168B, 8168CA, 8177AB, 8178R, 8178E, 260156, 260169, 260174, C09B 2700, C09B 2936

Patent

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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.

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