Method for manufacturing bulky nonwoven fabrics

Details Method for manufacturing bulky nonwoven fabrics Method for manufacturing bulky nonwoven fabrics

1991-09-12

1994-04-12

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

19299, 156 624, 156181, 264168, D04H 305, D04H 316

Patent

active

053022203

ABSTRACT:
A fiber bundle comprising a plurality of composite fibers spun out of a spinneret is blown against a working net conveyor by a drawing force of a high-speed air stream while the air stream is sucked and removed from below the net conveyor to deposit the fiber bundle on the net conveyor to form a web, and the web is then heat-treated to develop crimps and the fibers thermally adhere together at their points of contact, thereby obtaining a nonwoven fabric, wherein the air stream is blown against the web from below the net conveyor for a time before the heat-treatment, with an intensity sufficient to make the web to float in such a manner that the bottom face of the web rise above the net conveyor by 0.2 to 30 mm.

REFERENCES:
patent: 3459627 (1969-08-01), Vosburgh
patent: 3878014 (1975-04-01), Melead
patent: 4392903 (1983-07-01), Endo
patent: 4551378 (1985-11-01), Carey
patent: 4992327 (1991-02-01), Donovan
patent: 5102724 (1992-04-01), Okawahara

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