Method and apparatus for applying coating liquid to a moving bas

Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating

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Details

118410, 118413, 118419, 427356, B05B 312, B05C 502, B05D 312

Patent

active

048392014

ABSTRACT:
Method and apparatus for applying coating liquid onto a moving base, such as paper or board web, the surface of a counter-roll or the like wherein the coating liquid is fed under pressure into a coating liquid chamber of a coating device defined by a coating member, a front wall, edge seals and by a region of the moving base to be coated. In order to seal the front wall of the coating device against the passage of air with respect to the moving base and/or to lubricate the front wall and moving base with respect to each other, a fluid material, such as a liquid, dispersion, solution or the like is fed to an inlet side of the moving base region forward of the base region and front member in the direction of movement of the base so that the fluid material moves substantially parallel to and in the same direction as the moving base.

REFERENCES:
patent: 4369731 (1983-01-01), Damrau
patent: 4452833 (1984-06-01), Holt
patent: 4702196 (1987-10-01), Kantzenberger

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