Heat-adhesive composite fibers and process for producing same

Details Heat-adhesive composite fibers and process for producing same Heat-adhesive composite fibers and process for producing same

1979-11-16

1981-05-26

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

156167, 156181, 156229, 264DIG26, 264168, 428369, 428370, 428374, 1563096, 1563082, D04H 104

Patent

active

042698880

ABSTRACT:
Heat-adhesive side-by-side type composite fibers consisting of a component composed mainly of a crystalline polypropylene and a component composed mainly of an olefin polymer, having few naturally developed crimps and few latent crimpability and superiority in undetachability of the composite components, are produced by using two composite components having a specified relationship of melt flow ratio and by stretching unstretched composite fibers at a specified temperature range.

REFERENCES:
patent: 3505164 (1970-04-01), Oppenlander
patent: 3589956 (1971-06-01), Kranz et al.
patent: 4115620 (1978-09-01), Gupta et al.
patent: 4172172 (1979-10-01), Suzuki et al.
patent: 4189338 (1980-02-01), Ejima et al.

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