Surface heating for a corrugated medium web

Details Surface heating for a corrugated medium web Surface heating for a corrugated medium web

1997-01-13

1999-04-27

Crispino, Richard

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

156205, 156462, 425336, B31F 120

Patent

active

058978240

ABSTRACT:
In a single facer, the premoistened medium web is dried on both surfaces to a shallow depth immediately prior to passage through the corrugating nip. The dried shallow surface layers substantially decrease friction between the flutes of the corrugating rolls and the paper while the interior of the web is maintained in a moist condition necessary for formability.

REFERENCES:
patent: 235698 (1880-12-01), Newton
patent: 2487647 (1949-11-01), Goettsch
patent: 2952297 (1960-09-01), Hollis
patent: 3349222 (1967-10-01), Johnston
patent: 3630806 (1971-12-01), Kitajima et al.
patent: 3994768 (1976-11-01), Roberts
patent: 4038130 (1977-07-01), Cosby et al.
patent: 4461665 (1984-07-01), Schertler
patent: 5156714 (1992-10-01), Thomas

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