Method for extracting water from a paper web in a papermaking ma

Details Method for extracting water from a paper web in a papermaking ma Method for extracting water from a paper web in a papermaking ma

1989-05-25

1989-12-19

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

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

162211, 162217, 162352, 162374, 264 44, 34110, D21F 148

Patent

active

048880957

ABSTRACT:
The invention is directed to a method for extracting water from a paper web in a paper making machine using a ceramic foam component. The component includes a supporting structure and a water permeable member is mounted on the supporting structure and is adapted to support a paper web. The water permeable member comprises a rigid mass of ceramic foam having a plurality of interconnected cells. The ceramic foam has an air permeability in the range of 10 to 1,000 cubic feet per square foot of surface area per minute and has a density of 5 to 100 lbs/cubic foot. When a pressure differential is applied to the permeable member to the paper web, moisture will be extracted from the web and passes through the permeable member.

REFERENCES:
patent: 3962081 (1976-06-01), Yarwood et al.
patent: 4075303 (1978-02-01), Yarwood et al.
patent: 4808558 (1989-02-01), Park et al.

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