Method and apparatus for coating pulp products

Details Method and apparatus for coating pulp products Method and apparatus for coating pulp products

D - Textiles, Paper

21

H

D21H 23/50 (2006.01) D21H 23/28 (2006.01)

Patent

CA 2212792

A method of applying a film of coating material to a web of pulp product on a machine and an apparatus for carrying out the method. The coating material is directed in a fluid against the surface of a web of pulp product in the form of a high volume low velocity atomized spray mist from high volume low pressure spray nozzles with an exiting air pressure from the spray nozzle of 1 to 10 psig, preferably 3 to 6 psig.

L'invention concerne un procédé d'application d'un film d'un matériau de revêtement sur une bande de pâte à papier, ainsi qu'une machine et un appareil de mise en oeuvre du procédé. La matière du revêtement est dirigée dans un fluide contre la surface de la bande de produit de pâte à papier sous la forme d'un brouillard de pulvérisation atomisé de fort volume à faible vitesse à partir de buses de pulvérisation à fort volume et faible vitesse et fonctionnant avec des pressions d'air manométriques à la sortie de 1 à 10 et de préférence de 3 à 6 psi.

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