Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1974-11-04
1976-09-21
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156351, 156359, 156378, 156470, B32B 3100
Patent
active
039817580
ABSTRACT:
A method and apparatus for improving overall quality and reducing warp in corrugated paperboard blanks by controlling a number of interrelated production factors in the production of a double-face corrugated paperboard web from which the blanks are made including the selection of product variables, production of the web, observation of warp characteristics, and adjustment of production factors affecting warp characteristics. Apparatus for controlling warp characteristics includes water sprays at various points along the production apparatus, tensioning devices for various lamina of the composite web, wrap devices for controlling heat supplied to the lamina, adhesive-gap control devices affecting moisture content of the lamina, pressure and flotation devices for controlling heat exposure time of the web, and feedback devices for automatically maintaining selected relationships between the production factors as a function of production speed.
REFERENCES:
patent: 2941573 (1960-06-01), Cassady
patent: 2951007 (1960-10-01), Lippke
patent: 3004880 (1961-10-01), Lord
patent: 3075700 (1963-01-01), Bishop
patent: 3175300 (1965-03-01), Nitchie
patent: 3257086 (1966-06-01), Drenning
patent: 3845287 (1974-10-01), Fremont et al.
Thayer William Stansbury
Thomas Charles Edward
Brumback Oscar B.
Koppers Company Inc.
Simmons David A.
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