Polyester fibers dyed with a disazo disperse dyestuff

Details Polyester fibers dyed with a disazo disperse dyestuff Polyester fibers dyed with a disazo disperse dyestuff

1973-10-29

1976-05-04

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260153, 260154, 260156, 260158, 260160, 260310R, 260569, C09B 3312, D06P 354

Patent

active

039543986

ABSTRACT:
Polyester fibers dyed with a disazo disperse dyestuff free from --SO.sub.3 H groups imparting solubility in water of the formula ##SPC1## in which X represents hydroxyl or amino, R.sub.1 and R.sub.2 each represents hydrogen, phenyl, C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.2 -alkoxy, and, when X = OH, also C.sub.1 -C.sub.2 -alkoxycarbonyl or -CONH.sub.2, Z represents --O--, --S--, --NH--, cyclohexylidene, C.sub.1 -C.sub.2 -alkylene, --O--(C.sub.1 -C.sub.2 -alkylene)--O--, and R.sub.3 and R.sub.4 each represent hydrogen, C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.2 -alkoxy or chlorine, and D.sub.1 and D.sub.2 are each a radical of a diazo component of the heterocyclic series are disclosed.

REFERENCES:
patent: 2936306 (1960-05-01), Schmid et al.
patent: 3137687 (1964-06-01), Spoerri et al.
patent: 3325468 (1967-06-01), Jung et al.

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