Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Treating textiles or fibers from synthetic resin or natural...
Patent
1975-07-28
1976-07-13
Levy, Donald
Bleaching and dyeing; fluid treatment and chemical modification
Chemical modification of textiles or fibers or products thereof
Treating textiles or fibers from synthetic resin or natural...
8173, D06P 354
Patent
active
039690750
ABSTRACT:
Heretofore, halogenated aromatic polyesters (as defined), such as those formed by the reaction of tetrabromobisphenol A, and a mixture of isophthaloyl chloride and terephthaloyl chloride, have proven to be extremely difficult to dye and to undergo a deleterious fiber degradation when dyeing is attempted in the presence of common dye carriers. Difficulties heretofore encountered when attempts have been made to dye such fibrous materials effectively are eliminated in the substantial absence of fiber degradation when practicing the present process. The dyeing of the specifically defined halogenated aromatic polyester fibrous material with an aqueous disperse dye system is carried out at substantially atmospheric pressure and at a temperature of about 80.degree. to 100.degree.C. in the presence of an acetophenone dye carrier.
REFERENCES:
patent: 2035578 (1936-03-01), Wagner
patent: 3234167 (1966-02-01), Wycliffe
patent: 3864448 (1975-02-01), Stackman
Celanese Corporation
Levy Donald
LandOfFree
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