Manufacturing a thermoplastic non-woven web comprising coherentl

Details Manufacturing a thermoplastic non-woven web comprising coherentl Manufacturing a thermoplastic non-woven web comprising coherentl

1980-02-29

1981-11-17

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428284, B32B 512

Patent

active

043012035

ABSTRACT:
A thermoplastic web of indeterminate length is provided by forming a tubular thermoplastic web having interconnected filaments. The web is rotated about its axis while being advanced along its axis and is slit so as to provide a web having substantially parallel filament alignment at an angle to the longitudinal axis of the web. The web may be formed into a multiply structure having a plurality of webs wherein the filament alignment of at least one of the webs of the structure is at an angle to the filament alignment of at least one of the other webs of the structure.

REFERENCES:
patent: 3440983 (1970-01-01), Lee
patent: 3819469 (1974-06-01), Balch et al.
patent: 4112159 (1978-09-01), Pall

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