Nonwoven fabric of water-soluble resin fibers

Details Nonwoven fabric of water-soluble resin fibers Nonwoven fabric of water-soluble resin fibers

1989-08-22

1991-08-20

Ryan, Patrick J.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264165, 264500, 264555, B32B 900

Patent

active

050412523

ABSTRACT:
A nonwoven fabric consisting of water-soluble resin fine fibers having a mean fiber diameter of at most 30 .mu.m and a basis weight of 5 to 500 g/m.sup.2 is produced by extruding an aqueous solution containing a water-soluble resin or a melt of a water-soluble resin plasticized with water through nozzles, stretching the extruded material to form fibers by a high speed gas flow, heating the fibers to evaporate the water in the fibers and then collecting the fibers.

REFERENCES:
patent: 4092454 (1978-05-01), Domojo et al.
patent: 4493751 (1985-01-01), Cherdron et al.
patent: 4500315 (1985-02-01), Pieniak et al.
patent: 4524103 (1985-06-01), Seager
patent: 4537590 (1985-08-01), Pieniak et al.

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