Method and apparatus for plybonding control

Details Method and apparatus for plybonding control Method and apparatus for plybonding control

1977-06-08

1979-07-17

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

73432L, 162198, 162252, 162253, 162256, 162258, 162259, 162262, 162263, 162304, 162317, 356 72, 356436, D21F 106, D21F 108, D21F 1108

Patent

active

041612051

ABSTRACT:
A method and apparatus for forming a multi-ply web of paper wherein a first layer is carried on the underside of a traveling felt to a bonding station located over the top of a forming cylinder on which a second layer is formed with a water bead in the nip between the layers and a laser or other device for generating a beam of energy at one end of the nip directing the energy along the water bead parallel to the nip and a receiver at the other end to detect the laser beam with means operated by the receiver for controlling the size of the water bead.

REFERENCES:
patent: 3485715 (1969-12-01), Kobayashi
patent: 3620914 (1971-11-01), Rocheleau
patent: 3726758 (1973-04-01), Parker et al.
patent: 3734821 (1973-05-01), Curtis
patent: 3907635 (1975-09-01), Bringman
patent: 3985612 (1976-10-01), Watanabe
patent: 4004968 (1977-01-01), Braun et al.

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