Submerged drainage method for forming and dewatering a web on a

Details Submerged drainage method for forming and dewatering a web on a Submerged drainage method for forming and dewatering a web on a

1995-02-27

1996-06-04

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

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

162217, 162351, 162364, D21F 148

Patent

active

055229697

ABSTRACT:
Improved system for controlling the forming and dewatering of a web of paper by submerged drainage in which air does not penetrate the fiber/aqueous dispersion and the formed web. The dewatering is via altering the natural tension of the meniscus of the water to induce enhanced drainage of water from the aqueous dispersion of paper making fibers in the wetter end of the system and from the drier end of the fabric. Also, the improved horizontal system provides substantially equivalent side surfaces to the paper formed in such system.

REFERENCES:
patent: 2991218 (1961-07-01), Cirrito et al.
patent: 3066068 (1962-11-01), Calehuff
patent: 3489644 (1970-01-01), Rhine
patent: 3573159 (1971-03-01), Sepall
patent: 3823062 (1974-07-01), Ward et al.
patent: 4306934 (1981-11-01), Seppanen
patent: 4895623 (1990-01-01), Corbellini
patent: 5011577 (1991-04-01), Hansen et al.

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