Method for forming and dewatering a web on a fourdrinier fabric

Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...

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162203, 162301, 162351, 162363, D21F 148

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active

053933826

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:
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patent: 3066068 (1962-11-01), Calehuff
patent: 3489644 (1970-01-01), Rhine
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patent: 3926716 (1975-03-01), Bates
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patent: 4302282 (1981-11-01), Young
patent: 4306934 (1981-11-01), Seppanen
patent: 4895623 (1990-01-01), Corbellini
patent: 5242547 (1993-09-01), Corbellini et al.
MacDonald et al. "Papermaking and Paperboard Making" pp. 282-284, McGraw Hill Book Co, 1970.

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