Two-ply screen for the sheet forming zone of a papermaking machi

Details Two-ply screen for the sheet forming zone of a papermaking machi Two-ply screen for the sheet forming zone of a papermaking machi

1983-12-08

1985-02-19

Kee Chi, James

Textiles: weaving

Fabrics

Materials

139383A, 139413, 162DIG1, 162348, D03D 1500, D03D 1502, B21F 110, B10D 3908

Patent

active

044999275

ABSTRACT:
A two-ply screen for the sheet forming zone of a papermaking machine comprises weft filaments arranged in pairs one over the other and warp filaments with all the warp filaments being woven into the top layer of the screen. Only part of the warp filaments are woven also into the bottom layer of the screen. The number of warp filaments in the top fabric layer serving to form the paper sheet is twice that contained in the bottom layer. The lower weft filaments are at least 20% and preferably at least 30% thicker than the warp filaments.

REFERENCES:
patent: 3885603 (1975-05-01), Slaughter
patent: 4041989 (1977-08-01), Johannsson et al.
patent: 4071009 (1979-10-01), Karm
patent: 4071050 (1978-01-01), Codorniu
patent: 4112982 (1978-09-01), Bugge et al.
patent: 4289173 (1981-09-01), Miller
patent: 4314589 (1982-02-01), Buchanan et al.
patent: 4344464 (1982-08-01), Thompson et al.
patent: 4359069 (1982-11-01), Hahn

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