Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1976-03-29
1978-08-08
Henderson, Jr., Christopher A.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 1UA, 8 1B, 8 25R, 8 1K, 8 42B, 8 1L, 8172R, C09B 6200, D06P 138
Patent
active
041054008
ABSTRACT:
The present invention relates to a process for dyeing or printing natural protein fibres in deep, black, brown, and navy blue shades, wherein protein fibres are dyed from an aqueous liquor, in the presence of a levelling agent, with a metal complex of the formula ##STR1## wherein R.sub.1 represents hydrogen, an alkyl, aralkyl or aryl radical, R.sub.2 represents an acryloyl, acetyl or a propionyl radical which is substituted by one or two halogen atoms, Me represents a chromium-III or cobalt-III ion and X represents hydrogen, nitro, chlorine, methyl, methoxy, acetylamino, chloroacetylamino or propionylamino, or the dyestuff is transferred from a support by transfer printing.
REFERENCES:
patent: 3114746 (1963-12-01), Benz
patent: 3308115 (1967-03-01), Benz
patent: 3344131 (1967-09-01), Uehlinger
patent: 3516979 (1970-06-01), Dore
patent: 3625935 (1971-12-01), Back
patent: 3627747 (1971-12-01), Brouard
patent: 3692462 (1972-09-01), Back
patent: 3692463 (1972-09-01), Back
Almaula Prabodh I.
Ciba-Geigy Corporation
Henderson, Jr. Christopher A.
McC. Roberts Edward
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