Multi-ply web forming apparatus and method

Details Multi-ply web forming apparatus and method Multi-ply web forming apparatus and method

D - Textiles, Paper

21

F

92/15

D21F 11/04 (2006.01) D21F 9/00 (2006.01)

Patent

CA 1313965

ABSTRACT OF THE DISCLOSURE A multi-ply paper web forming apparatus utilizes first and second forming wires which travel in a co-running path for a portion of their length and which form a throat into which an aqueous slurry of paper pulp fibers is introduced. The slurry is dewatered between the co-running first and second forming wires upwardly and downwardly to quickly produce a substantially formed, but still moist, top ply web which is carried on the second forming wire onto a base ply web which has previously been formed on the wire of a single wire former. The first surface of the top ply web is brought into ply bonding engagement with the surface of the base ply web to produce a composite multi-ply web which has superior overall ply bond, retention and dryness before leaving the web forming section of a papermaking machine.

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