Process for dyeing synthetic fibers formed from aromatic polyest

Details Process for dyeing synthetic fibers formed from aromatic polyest Process for dyeing synthetic fibers formed from aromatic polyest

1975-11-07

1977-09-20

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 41R, 8179, 260207, 2602075, C09B 2700, C09B 2908, D06P 102

Patent

active

040493750

ABSTRACT:
The dyeing of synthetic polyester fibers wherein the dyestuff is a mono-azo dyestuff of the formula ##STR1## in which X represents a hydrogen, chlorine, bromine, cyano, nitro or lower alkylsulphonyl radical, R.sub.1 represents hydrogen, chlorine or bromine atom or a lower alkyl, lower alkoxy or acylamino radical, R.sub.2 represents a hydrogen atom or a lower alkoxy radical and R.sub.3 represents a lower alkyl, .beta. -hydroxyethyl, .beta.-cyanoethyl, .beta.-acetoxyethyl or .beta.-(.beta.-acetoxyethoxy)-ethyl group.

REFERENCES:
patent: 2516303 (1950-07-01), Dickey
patent: 2700686 (1955-01-01), Dickey et al.

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