Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1995-02-02
1997-07-01
Chin, Peter
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
162303, 162304, 162348, 162350, 162354, D21F 124
Patent
active
056434170
ABSTRACT:
In a method for forming a sheet from a fiber-water suspension, the fiber-water suspension is supplied on a traveling bottom wire at a first zone thereof to dewater the fiber-water suspension. Subsequently, the suspension is introduced between the bottom wire at a second zone and a top wire, and dewatering is effected. The sheet is further caused to travel around a sheet-forming roll while keeping the sheet in contact therewith by the bottom wire at a third zone thereof, and reformation of the sheet is carried out. Finally, the sheet on the bottom wire is caused to travel up to a fourth zone thereof to effect a further dewatering with a fourth dewatering device disposed adjacent to the bottom wire at the fourth zone thereof, whereby a final stage of sheet formation is carried out. An apparatus for carrying out the above method is also disclosed.
REFERENCES:
patent: 3997390 (1976-12-01), Kankaanpaa
patent: 4523978 (1985-06-01), Pullinen
patent: 4532008 (1985-07-01), Creagan et al.
patent: 4544447 (1985-10-01), Pinter et al.
patent: 4623429 (1986-11-01), Tissari
patent: 4686004 (1987-08-01), Fujiwara
patent: 5248392 (1993-09-01), Bando et al.
patent: 5437769 (1995-08-01), Bando et al.
Chin Peter
Tokushu Paper Mfg. Co., Ltd.
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