Process for dyeing synthetic fiber materials

Details Process for dyeing synthetic fiber materials Process for dyeing synthetic fiber materials

1973-10-23

1976-04-20

Sebastian, Leland A.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 1E, 8 41R, 8 41B, 8 41C, 8 41D, 8 50, 8 94A, 260205, 260206, 2602075, D06P 104, C09B 4300

Patent

active

039515915

ABSTRACT:
A process for the continuous dyeing of synthetic fibrous materials from organic solvents, which comprises impregnating the said fibrous materials with organic dyebaths containing at least one dyestuff of the formula (1) ##SPC1##
In which R represents a secondary or tertiary amino group of the formula (2) ##EQU1## in which R.sub.4, R.sub.5 each represents, straight chain or branched alkyl, hydroxyalkyl, lower alkyl --COO-- lower alkylene, and R.sub.4 additionally represents hydrogen lower alkyl --o-- lower alkylene, or R.sub.4 and R.sub.5 represent together with the nitrogen atom the heterocyclic ring ##EQU2## R.sub.1 and R.sub.1 ' each represents hydrogen, chlorine, bromine, lower alkyl, lower alkoxy, nitro or --SO.sub.2 -- lower alkyl, R.sub.2 and R.sub.3 each represents hydrogen, lower alkyl, cyano-lower alkylene, hydroxy- lower alkylene, lower alkylene ##EQU3## lower alkyl, lower alkylene LOWER ALKYL, ##EQU4## lower alkylene-phenyl or phenyl, X represents hydrogen, chlorine, bromine, lower alkyl or lower alkoxy, Y represents hydrogen, chlorine, bromine, lower alkyl, lower alkoxy or acylamino, and subsequently fixing the applied dyestuffs by a heat treatment.

REFERENCES:
patent: 1738978 (1929-11-01), Whitehead
patent: 3523749 (1970-08-01), Kenneth et al.
patent: 3663161 (1972-05-01), Litzler et al.
patent: 3684431 (1972-08-01), Bishof et al.
patent: 3738803 (1973-06-01), Blanc et al.
patent: 3814579 (1974-06-01), Birke et al.
W. F. Beech: Fibre-Reactive Dyes; Lugos Press Limited, 1970, p. 221.

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