Method of making cross-laminated stretched non-woven fabric

Details Method of making cross-laminated stretched non-woven fabric Method of making cross-laminated stretched non-woven fabric

1989-02-21

1991-02-12

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156177, 156178, 156180, 156242, 156229, 15624418, 156265, 15624424, 2641761, 2642107, 2642108, 26421114, 26421122, B29C 4706

Patent

active

049921240

ABSTRACT:
A non-woven fabric having a strength which is comparable to the strength of woven fabric and a method of making such non-woven fabric are disclosed. The non-woven fabric has a laminated structure composed of a warp web of random-laid non-woven fabric stretched lengthwise and hence having a greater strength in the lengthwise direction than in the transverse direction, and a weft web of random-laid non-woven fabric stretched transversely and hence having a greater strength in the transverse direction than in the lengthwise direction. Filaments constituting each of the warp and weft webs are substantially free from molecular orientation and extendible at least two times the original length before the web is stretched. Upon stretching of the web, the un-oriented filaments are substantially stretched to thereby cause molecular orientation therein.

REFERENCES:
patent: 2574221 (1951-11-01), Mozligliani
patent: 2982310 (1961-05-01), West
patent: 3616037 (1971-10-01), Burger
patent: 3682734 (1972-08-01), Burger
patent: 4185981 (1980-01-01), Ohsato

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