Longitudinally stretched nonwoven fabric and method for producin

Details Longitudinally stretched nonwoven fabric and method for producin Longitudinally stretched nonwoven fabric and method for producin

1997-11-17

2000-10-17

Copenheaver, Blaine

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2641761, 2642108, 26421114, 26421122, D01D 512

Patent

active

061326615

ABSTRACT:
A longitudinally stretched nonwoven fabric and a method for producing the same, which nonwoven fabric is a web mainly composed of long fiber filaments of 3 .mu.m to 15 .mu.m in diameter and made by short distance stretching in one direction at a stretching ratio of at least 5, and which production method is characterized in the steps of: maintaining the spun filaments in a draftable state; cooling the filaments with a cooling fluid, then guiding the filaments onto a conveyer with inclining the flow of filaments toward the transferring direction, and sucking by a reduced pressure from the back side of said conveyer, and further subjecting the web of filaments to short distance stretching in the longitudinal direction.

REFERENCES:
patent: 4992124 (1991-02-01), Kurihara et al.
patent: 5312500 (1994-05-01), Kurihara et al.

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