Method of using a dual compartment vacufoil unit to eliminate se

Details Method of using a dual compartment vacufoil unit to eliminate se Method of using a dual compartment vacufoil unit to eliminate se

1987-11-03

1988-10-25

Lacey, David L.

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

162202, 162217, 162300, 162352, 162364, D21F 148

Patent

active

047801832

ABSTRACT:
A dual compartment vacufoil unit for making linerboard grade or other multi-layer paper comprising a dual compartment vacufoil and a forming blade and a method of using same. The dual compartment vacufoil unit is positioned beneath the forming blade, with an upstream compartment located on the upstream portion of the forming blade evacuating air through primary paper sheet prior to application of the secondary discharge, and a downstream compartment located on the downsteam portion of the forming blade. The forming blade is positioned directly beneath the secondary pulp discharge.

REFERENCES:
patent: 4176005 (1979-11-01), Bubik et al.
patent: 4416730 (1983-11-01), Schiel
patent: 4425187 (1984-01-01), Armstrong et al.

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