Wound non-woven fabric filter having heat fusible fibers

Details Wound non-woven fabric filter having heat fusible fibers Wound non-woven fabric filter having heat fusible fibers

1996-10-04

1998-03-17

Walker, W. L.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210503, 428 359, 428 363, 4282967, 156187, 264113, 55486, 55528, B01D 3916

Patent

active

057282994

ABSTRACT:
The cartridge filter of the present invention is a filter comprising a wound and laminated composite non-woven fabric containing heat fusible fibers, wherein the delamination strength between layers of the laminated composite non-woven fabric of said filter increases continuously or discontinuously from the outer layer toward the inner layer, the delamination strength of the inner layer-exceeds 1000 gf/5 cm, and the delamination strength of the outer layer is 5 to 1000 gf/5 cm. This cartridge excels in filtering life, filtering accuracy, and pressure resistance.

REFERENCES:
patent: 3262578 (1966-07-01), Dennis
patent: 4659785 (1987-04-01), Nagano et al.
patent: 4660779 (1987-04-01), Nemesi et al.
patent: 4752396 (1988-06-01), Schmitt
patent: 4801383 (1989-01-01), Hoffmann et al.
patent: 5244482 (1993-09-01), Hassenboehler, Jr. et al.
patent: 5599366 (1997-02-01), Hassenboehler, Jr. et al.

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