Method and apparatus for fabricating corrugated board from poly-

Details Method and apparatus for fabricating corrugated board from poly- Method and apparatus for fabricating corrugated board from poly-

1975-07-07

1977-07-26

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 64, 156205, 156361, 156378, 156470, B31F 122

Patent

active

040381226

ABSTRACT:
Corrugated board is formed by heating the plastic coated bonding surface of a liner web to a plasticizing temperature against the Teflon coated surface of a rotating heating drum and, while plasticized, fused against the flute crests of a corrugated medium web. The fusion bonded joints are set in the nip of a chilled pressure roll for stripping of the board unit from the corrugating roll surface. Speed of the single-face unit is primarily controlled as a function of the magnitude of angular wrap of the liner web about the heating drum. Temperature of the bonding surface of the liner web is sensed upon removal from the heating drum for the purpose of speed trim adjustment.

REFERENCES:
patent: 3004880 (1961-10-01), Lord
patent: 3886019 (1975-05-01), Wilkinson et al.
patent: 3892613 (1975-07-01), McDonald et al.
patent: 3920496 (1975-11-01), Wilkinson et al.

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