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
1975-01-31
1976-09-07
Schofer, Joseph L.
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...
D06P 370
Patent
active
039791769
ABSTRACT:
A process is described for the continuous processing of fibers produced in the wet spinning process, particularly for the continuous dyeing and/or optical brightening of polyacrylonitrile tow in the hydrated condition, wherein, for the obtainment of a level processing effect, the wet tow is spread out, preferably by using spreaders such as curved rods or curved rolls, before being impregnated with the processing liquor, to form a ribbon having a maximum thickness of 2 mm. By this process there is obtained over the whole cross-section, evenly processed polyacrylonitrile tow.
REFERENCES:
patent: 2558735 (1951-07-01), Cresswell
patent: 3113827 (1963-12-01), Moore
patent: 3787182 (1974-01-01), Eigenmann
Kaiser Leo
Nothiger Otto
Almaula Prabodh I.
Ciba-Geigy Corporation
Clingman A. L.
Kolodny Joseph G.
McC. Roberts Edward
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