Air decompaction of paper webs

Details Air decompaction of paper webs Air decompaction of paper webs

1977-04-22

1978-11-14

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

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

34 33, 162135, 427326, D21F 1100

Patent

active

041254309

ABSTRACT:
A method of and apparatus for reducing the density and increasing the bulk of a fibrous web having an initial basis weight between 20 and 60 pounds per ream and an initial nondirectional breaking length between 50 and 500 meters.
The web is loosely placed between a pair of wire screens. The screens and the web are then transported past a nozzle assembly that impinges a gaseous medium onto the surface of the web with sufficient velocity so that the fibrous web is decompacted throughout the entire thickness of the web.

REFERENCES:
patent: 1472572 (1923-10-01), Tompkins
patent: 2730933 (1956-01-01), Reynolds
patent: 3301746 (1967-01-01), Sanford et al.
patent: 3490103 (1970-01-01), Asaka et al.
patent: 3556931 (1971-01-01), Champaigne
Brochure entitled "AFP" Honshu Paper Co., Ltd.

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