Thermally fusible composite fiber and non-woven fabric made of t

Details Thermally fusible composite fiber and non-woven fabric made of t Thermally fusible composite fiber and non-woven fabric made of t

1996-07-31

1997-12-02

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428374, 428373, 5263483, D02G 300, C08F 1014

Patent

active

056934203

ABSTRACT:
A non-woven fabric comprising thermally fusible composite fibers with shortened heat-sealing time and improved heat-sealing strength is provided.
The non-woven fabric is produced using side-by-side type or sheath-and-core type thermally fusible composite fibers comprising a first component consisting of polyethylene and a second component consisting of polyester, said polyethylene Occupying continuously at least a portion of the surface of the fiber in the length direction, wherein said polyethylene is a copolymer having 1.6/1,000 C or more methyl branches in its molecular chains, a density from 0.940 to 0.965 g/cm.sup.3, and a Q value (weight average molecular weight Mw
umber average molecular weight Mn) of 4.8 or less.

REFERENCES:
patent: 4788264 (1988-11-01), Ukita
patent: 5444145 (1995-08-01), Brant et al.

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