Multi-ply forming fabric providing varying widths of machine dir

Details Multi-ply forming fabric providing varying widths of machine dir Multi-ply forming fabric providing varying widths of machine dir

1989-05-23

1990-11-06

Falik, Andrew M.

Textiles: weaving

Fabrics

Drier felts

D03D 1100

Patent

active

049678051

ABSTRACT:
A forming fabric for use in papermaking machines for making tissue products in which the fabric is a three-ply fabric. The upper ply has its machine direction (MD) filaments arranged in groups so that wide channels are provided through the ply between the groups and narrow channels are provided through the ply within the groups. Cross direction (CD) filaments in the upper ply provide CD knuckles spanning across the channels to provide a gridwork for supporting fibers separated from the water of the slurry deposited on the forming fabric, the fibers having a greater density in bands overlying the wide channels than in the intermediate bands overlying the narrow channels. The lower ply is a porous fabric which further controls the flow of the water discharged from the pulp through the upper ply. The two plies are interconnected by integrated binder filaments which cooperate to maintain the groupings of the MD filaments in the upper ply. The predominant CD knuckles on the paper side of the fabric provide topographic lines crossing the MD channels diagonally in both directions.

REFERENCES:
patent: 3230136 (1966-01-01), Krake
patent: 4116756 (1978-09-01), Quee
patent: 4231401 (1980-11-01), Matuska
patent: 4499927 (1985-02-01), Borel
patent: 4554953 (1985-11-01), Borel et al.
patent: 4705601 (1987-11-01), Chiu
patent: 4789009 (1988-12-01), Troughton
patent: 4821780 (1989-04-01), Tate
patent: 4832090 (1989-05-01), Kreukel et al.

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