Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Depilating
Patent
1975-11-24
1977-12-20
Schulz, William E.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Depilating
8 89R, 8173, 8177AB, D06P 500
Patent
active
040638898
ABSTRACT:
In an exhaustion process for dyeing unmodified or acid-modified polyester fibers, the fibers are introduced into a dye bath comprising a chlorinated hydrocarbon solvent, a water-insoluble salt of a cationic dye and a C.sub.6-13 alkyl sulfosuccinate anion, from 0.05 to 1.0% based on the total weight of the dyebath of at least one low molecular weight carboxylic acid, a solvent-soluble quaternary ammonium salt of an arylsulfonic acid and optionally additional processing assistants, after which the cationic dye salt is exhausted onto the unmodified or acid-modified polyester by heating the dyebath at a temperature of from 110.degree. to 170.degree. C for from 0.5 to 3 hours, with the proviso that, in the case of the acid-modified polyester fibers, from 0.01 to 0.10% based on the total weight of the dyebath of water must also be present in the dyebath. Good to excellent penetration of and buildup on the polyester fibers are obtained.
REFERENCES:
patent: 3660008 (1972-05-01), Kissa
patent: 3718428 (1973-03-01), Streck
E. I. Du Pont de Nemours and Company
Schulz William E.
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