Stock material or miscellaneous articles – Pile or nap type surface or component – Particular backing structure or composition
Patent
1976-01-02
1978-12-26
Cannon, J.C.
Stock material or miscellaneous articles
Pile or nap type surface or component
Particular backing structure or composition
28112, 428288, 428296, 428297, 428301, 428303, B32B 506, B32B 508, B32B 512, D04H 148
Patent
active
041317041
ABSTRACT:
A nonwoven fabric is comprised of a blend of fine staple fibers and coarse staple fibers randomly oriented with the fine staple fibers having a higher melt flow than the coarse staple fibers. In the manufacture of the nonwoven fabric, same is needled whereby the needles select the fine fibers and portions of same are positioned in a plane generally transverse to the plane of the fabric. Infrared heat is used to fuse the fine fibers at overlapping portions thereof to provide integrity for the fabric. The coarse staple fibers are held in the interstices of the fabric at least partially by frictional engagement with the fine staple fibers.
REFERENCES:
patent: 3392079 (1968-07-01), Fekete
patent: 3476636 (1969-11-01), Crosby
patent: 3884169 (1975-05-01), Hoppe et al.
Erickson Wayne K.
Walters John P.
Cannon J.C.
Phillips Petroleum Company
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