Process for the dyeing of synthetic fibrous materials from organ

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

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8 41B, 8 41C, 8 41D, 8 50, 8173, 8174, 8175, 260193, C09B 2700

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active

039618854

ABSTRACT:
A process for the continuous dyeing of textile materials consisting of or containing synthetic fibrous materials of the group consisting of high molecular polyamides, polyolefines, polyacrylonitriles, polyurethanes, polyvinylchlorides, polyvinylacetates, cellulose-2 1/2-acetate, cellulose-triacetate and high molecular polyesters from organic solvents, which comprises impregnating the said fibrous materials with organic dyebaths containing at least one dyestuff of the formula ##SPC1##
In which R is linear or branched alkylcarbonyl of 4 to 18 carbon atoms, X is oyxgen or sulfur, Y is a direct linkage or NH, A is linear or branched alkylene of 1 to 4 carbon atoms unsubstituted or substituted by methoxy, ethoxy, phenoxy or R as defined above, B is (1) phenyl unsubstituted or substituted by fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, trifluoromethyl, cyano, carboalkoxy, nitro, acetyl, benzoyl or phenyl, or (2) napthyl, R.sub.1 is hydrogen or nitro, and R.sub.2 is hydrogen, chlorine, bromine or methyl, and heating the impregnated fibrous materials to a temperature between 100.degree.C and 240.degree.C.

REFERENCES:
patent: 3792972 (1974-02-01), Brenneisen

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