Polypropylene conjugate fiber

Details Polypropylene conjugate fiber Polypropylene conjugate fiber

1994-04-07

1995-09-19

Edwards, N.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428370, 428374, 428394, D02G 300

Patent

active

054514622

ABSTRACT:
A polypropylene conjugate fiber is provided which is suitable to a broad temperature range of hot roll processing to easily produce a non-woven fabric having a high tenacity and a good feel. The fiber comprises as a first component, a crystalline polypropylene having an isotactic pentad ratio of 0.930 or less and as a second component, a crystalline polypropylene having an isotactic pentad ratio of 0.945 or more. The first component is arranged so as to occupy 80% or more of the fiber surface, and the crystallinity of the fiber determined by X-ray diffraction is 30 to 50%.

REFERENCES:
patent: 4211819 (1980-07-01), Kunimune et al.
patent: 4814032 (1989-03-01), Taniguchi et al.

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