Dewatering fabrics

Details Dewatering fabrics Dewatering fabrics

2006-01-11

2009-10-13

Piziali, Andrew T (Department: 1794)

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

Nonwoven fabric

Including an additional nonwoven fabric

C442S268000, C442S363000, C442S382000, C442S392000, C442S401000

Reexamination Certificate

active

07601659

ABSTRACT:
The present invention relates to fabrics that can be used in the manufacture of paper. The fabrics preferably have at least three regions of fabric with specified distributions of pore sizes. The fabrics disclosed herein are an effective alternative to conventional dewatering fabrics for removing water from the incipient paper, which can provide energy cost savings in subsequent elevated temperature drying steps.

REFERENCES:
patent: 3700545 (1972-10-01), Matsui et al.
patent: 4043331 (1977-08-01), Martin et al.
patent: 4127696 (1978-11-01), Okamoto
patent: 4449992 (1984-05-01), Yamada et al.
patent: 5204171 (1993-04-01), Eschmann
patent: 5232768 (1993-08-01), Eklund et al.
patent: 6330883 (2001-12-01), Berger
patent: 6514386 (2003-02-01), Watanabe
patent: 6861142 (2005-03-01), Wilkie et al.
patent: 2005/0167061 (2005-08-01), Scherb et al.
patent: WO 96/16305 (1996-05-01), None
patent: WO 03/080905 (2003-10-01), None

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