Spinning process

Details Spinning process Spinning process

1980-10-31

1982-07-20

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264184, D01D 514

Patent

active

043405592

ABSTRACT:
Improved aromatic polyamide fibers from aromatic polyamides whose chain-extending bonds are either coaxial or parallel and oppositely directed are obtained by dry spinneret wet spinning into a shallow coagulating bath having an orifice in its bottom for removal of coagulating liquid and fibers wherein no more than a minor portion of coagulating liquid is lower than the entrance of the bath orifice in the proximity of the bath orifice. Preferably, no more than 10% of the coagulating liquid is lower than the entrance of the bath orifice and most preferably none of the coagulating liquid is lower than the entrance of the bath orifice.

REFERENCES:
patent: 3767756 (1973-10-01), Blades
patent: 4078034 (1978-03-01), Lewis

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