Disazo pyrazolyl dyed polyester fibers

Details Disazo pyrazolyl dyed polyester fibers Disazo pyrazolyl dyed polyester fibers

1973-10-29

1978-04-11

Higel, Floyd D.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260154, 260155, 260156, 260157, 260158, C09B 3522, C09B 3524, C09B 3534, D06P 348

Patent

active

040836886

ABSTRACT:
Polyester fibers dyed with a disazo dyestuff consisting of two N-phenyl-pyrazole monoazo dyestuff moieties bound to each other via the phenyl groups, said phenyl groups attached to each other by an --O--, --S--, --NH--, cyclohexylidene, C.sub.1 -C.sub.2 -alkylene or --O-(C.sub.1 -C.sub.2 -alkylene)-O- divalent radical.

REFERENCES:
patent: 2936306 (1960-05-01), Schmid et al.
patent: 3124566 (1964-03-01), Jung et al.
patent: 3325468 (1967-06-01), Jung et al.

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