Bearing blanket for an extended nip press

Details Bearing blanket for an extended nip press Bearing blanket for an extended nip press

1989-08-11

1990-11-27

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162361, 428167, 428272, D21F 302

Patent

active

049733834

ABSTRACT:
A bearing blanket is disclosed which extends through an extended nip defined by a shoe and a cooperating backing roll for pressing water from a formed web. The blanket includes a woven-base fabric which defines a web side and a shoe side, and a single liquid impervious urethane layer which is applied to the web side of the base fabric such that the urethane layer thoroughly penetrates into and through the base fabric. The arrangement is such that when the urethane layer is cured, the urethane layer defines a web face and a shoe face. The web face is spaced relative to the web side, with the web face defining a plurality of vents for conveying water pressed from the web away from the extended nip. The shoe face is substantially co-planar with the shoe side of the base fabric such that the shoe face is relatively smooth for cooperating with and moving relative to the shoe.

REFERENCES:
patent: 4287021 (1981-09-01), Justus et al.
patent: 4482430 (1984-11-01), Majaniemi
patent: 4552620 (1985-11-01), Adams
patent: 4559258 (1985-12-01), Kiuchi
patent: 4752519 (1988-06-01), Boyer et al.

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