Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Patent
1977-10-26
1979-09-25
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
34 4, 156210, 156272, 156470, B31F 100
Patent
active
041690079
ABSTRACT:
A dryer-cooling machine for combining a single face corrugated paper web whose flute peaks are wetted by lines of water-based adhesive with a liner web. The machine serves to cure the adhesive and thereby bond the webs together to form doubleface corrugated board. The singleface web and the liner web which overlies the flute peaks are transported by a conveyor belt through a heating zone and a cooling zone. In the heating zone, the belt carrying the webs passes through a funnel. Air is blown through the funnel to create in the converging region above the webs a static pressure which forces the liner into intimate contact with the flute peaks. Above this region are infrared heater elements. The wall of the funnel between the heater elements and the converging region is permeable to infrared rays whereby these rays penetrate the region and are absorbed by the liner to heat the wet adhesive, the resultant water vapors being carried away by the air flowing through the funnel. In the cooling zone, the belt passes through a duct through which cooling air is blown to lower the temperature of the webs. Emerging from the cooling zone is a web of doubleface corrugated board.
REFERENCES:
patent: 2355671 (1944-08-01), Naeher et al.
patent: 3085143 (1963-04-01), Antoncich
patent: 3183604 (1965-05-01), Stauffer
patent: 3619325 (1971-01-01), Hair et al.
Ebert Michael
Flynn Drying System, Inc.
Simmons David A.
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