Method for manufacturing filaments of viscose

Details Method for manufacturing filaments of viscose Method for manufacturing filaments of viscose

1977-05-06

1978-11-21

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264188, 264207, C04B 1514, D01F 206

Patent

active

041266560

ABSTRACT:
A method for manufacturing viscose filaments from a cellulosic starting material wherein a viscose is prepared from the cellulosic starting material, the viscose is extruded by passing it through a spinneret to form continuous thin strands, the extruded strands are passed continuously through a gaseous medium which contains at least one volatile agent of such a nature, and under such conditions, that a coagulating action on the said strands results, the strands which have thus been coagulated are then brought into contact with an acid medium which causes a pre-regeneration of the initial cellulose, so that the strands are converted to continuous filaments, and the filaments are passed through at least one other acid liquid medium which causes ultimate regeneration of the cellulose.

REFERENCES:
patent: 1357206 (1920-10-01), Fuller
patent: 1881742 (1932-11-01), Lilienfield
patent: 1979403 (1934-11-01), Ostermann
patent: 2284028 (1942-05-01), Ubbelohde
patent: 3833438 (1974-09-01), Kaneko et al.
patent: 3888771 (1975-06-01), Isuge et al.

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