Synthetic polyvinyl alcohol fiber and process for its...

Details Synthetic polyvinyl alcohol fiber and process for its... Synthetic polyvinyl alcohol fiber and process for its...

D - Textiles, Paper

01

F

18/602

D01F 6/50 (2006.01) D01F 6/14 (2006.01)

Patent

CA 2015406

The present invention is directed to a high-performance PVA fiber and its production. Each filament of the PVA fiber of the present invention has a structure comprising an aggregate of substantially innumerable fibrils, the fiber has high strength, elastic modulus, and resistance to fatigue, hot water and chemicals and can be pulpified while maintaining its excellent features, e.g. high strength. The PVA fiber of the present invention cannot, even drawn to a high ratio, be readily whitened by virtue of its fibril-aggregate structure, and can hence be made still higher in performances. The PVA fiber can be obtained by adding to a PVA solution a relatively large amount of surface active agent, and wet or dry-jet-wet spinning the thus prepared dope solution into an aqueous alkaline coagulating bath.

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