Process for producing dry finished paperboard

Details Process for producing dry finished paperboard Process for producing dry finished paperboard

1979-12-12

1981-09-15

Pianalto, Bernard D.

Coating processes

Application to opposite sides of sheet, web, or strip

427211, 427361, 4273855, 427391, 427411, 427414, B05D 100

Patent

active

042898080

ABSTRACT:
Dry finished coated paperboard is prepared with a smoothness and printability substantially equivalent to a comparable wet finished product, and without significant loss of bulk, with the addition of a plasticizing agent to the surface sizing formulation prior to calendering and before coating. The plasticizing agent preferably has a boiling point greater than water and is soluble in water. In addition, the surface size treatment is preferably applied with a blade, gateroll or like arrangement so that the plasticizing agent remains substantially on the surface of the paperboard with little or no penetration.

REFERENCES:
patent: 2249118 (1941-07-01), De Witt
patent: 3017295 (1962-01-01), Outterson et al.

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