Non-woven needle-punched filter fabric

Details Non-woven needle-punched filter fabric Non-woven needle-punched filter fabric

1997-05-05

1999-03-02

Raimund, Christopher

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Scrim

Woven scrim

442 57, 442383, 442388, 428 86, E02B 1100

Patent

active

058770968

ABSTRACT:
A non-woven needle-punched filter fabric for use in a geocomposite having a filter face and a laminating face, the fabric having a first filter and cushion zone adjacent the filter face produced from spun bond, continuous filament, a second stiff and bend resistant zone adjacent the first zone produced from a blend of staple non-fusible fiber and staple fusible fiber, and a third zone at the laminating face produced from fiber from both the first and second zones whereby the third zone has a hairy characteristic which facilitates laminating the fabric to a drainage net or a geogrid.

REFERENCES:
patent: 4840832 (1989-06-01), Weinle et al.
patent: 5104703 (1992-04-01), Rachman et al.
patent: 5167764 (1992-12-01), Nielsen et al.
patent: 5167765 (1992-12-01), Nielsen et al.
patent: 5277520 (1994-01-01), Travis
patent: 5322581 (1994-06-01), Heerten et al.
patent: 5380582 (1995-01-01), Neely, Jr. et al.
Dialog Literature Search on "Needle Punch" for drainage composite fabric.

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