Process for the dyeing of synthetic fiber materials from organic

Details Process for the dyeing of synthetic fiber materials from organic Process for the dyeing of synthetic fiber materials from organic

1973-10-19

1976-01-06

Padgett, Benjamin R.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 41R, 8 41A, 8 41C, 8 41D, 8 50, 260174, 260185, 260189, 260190, 260191, C08K 523, C09B 4318, D06P 104

Patent

active

039307948

ABSTRACT:
A process for the continuous dyeing of textile materials containing or consisting of synthetic fibrous materials from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula ##SPC1##
In which the phenyl radical A is unsubstituted or substituted by 1 to 3 substituents of the group consisting of halogen, nitro, cyano, trifluoromethyl, lower alkyl, lower alkoxy and lower alkoxy-lower alkylene--O--, B represents naphthylene or ##SPC2##
R.sub.2, r.sub.3, r.sub.4 and R.sub.5 each represent hydrogen, halogen, lower alkyl, lower alkoxy or lower alkoxy-lower alkylene--O--, and R.sub.1 stands for a linear or branched alkylcarbonyl of at most 18 carbon atoms, ##SPC3## ##SPC4## ##SPC5## ##SPC6##
And an organic solvent, and fixing the dyestuffs by submitting the impregnated materials to a heat treatment.

REFERENCES:
patent: 1738978 (1929-11-01), Whitehead
patent: 2691027 (1954-10-01), Grossmann et al.
patent: 2888452 (1959-05-01), Schmid et al.
patent: 3663161 (1972-05-01), Litzler et al.
patent: 3684431 (1972-08-01), Bischof et al.
patent: 3738803 (1973-06-01), Blanc et al.

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