Process for spinning cellulose ester fibres

Details Process for spinning cellulose ester fibres Process for spinning cellulose ester fibres

1981-05-06

1983-11-29

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

264 12, 264207, B29C 600

Patent

active

044180268

ABSTRACT:
Cellulose ester fibres are dry-spun from a solution in an aliphatic carboxylic acid, which solution may comprise the product liquor of the carboxylation reaction used to form the cellulose ester. Spinnability is achieved by incorporating an organic fibre-forming carrier polymer such as poly(ethylene oxide) in the spinning dope. The process may be used to spin cellulose acetate fibres and is economical in avoiding the use of conventional acetate solvents and the various purification stages usually required after the acetate is formed by acetylation. Blow-spinning or centrifugal spinning may be used to spin fine fibres.

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