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US 6,554,899 B1Granted
Paper coating apparatus
AssigneeMadison-Oslin Research
InventorsMorgan O. Ogilvie, Jr., Paul M. Whatley, Michael W. Olvey
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Abstract
An apparatus for coating paperboard comprising a flame treater, a heater, a coater for applying a thin coating of a water-dispersible polymer, a dryer, and a cooler with an air curtain to keep the heat confined to the hot end of the apparatus.
Claims17
A coating apparatus for coating a paperboard web comprising in a downstream arrangement:
- a. flame treating means capable of removing substantially all of any surface debris and fibers on the surface of the paperboard connected to;
- b. heating means capable of heating the paperboard for a sufficient time and temperature to reduce the moisture content to the desired level connected to;
- c. polymer coating means including a polymer source connected to the coater for applying a thin uniform coating of a water-dispersible polymer to at least one surface of said paperboard connected to;
- d. drying means for partially curing said coating of water-dispersible polymer connected to;
- e. cooling means including an air curtain for reducing the temperature of the coated paperboard.
2 more elements
Dependencies are inferred from the claim text.