Apparatus for forming bound-layer sheet of paper

Details Apparatus for forming bound-layer sheet of paper Apparatus for forming bound-layer sheet of paper

D - Textiles, Paper

21

F

92/11.1

D21F 11/04 (2006.01)

Patent

CA 1190075

ABSTRACT OF THE DISCLOSURE: A bound-layer type Fourdrinier papermaking machine is improved by providing its forming roll on the periphery thereof with circular or helical grooves. The air entrapped in the wedge-shaped gap between the forming roll and the endless felt belt advanced toward the forming roll is expelled through the grooves, to ensure production of a high-quality sheet of paper at a high speed. - 12 -

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