Apparatus for applying secondary layer on board surface

Details Apparatus for applying secondary layer on board surface Apparatus for applying secondary layer on board surface

1976-01-30

1978-05-16

Fisher, Richard V.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162305, 162351, D21H 106

Patent

active

040897400

ABSTRACT:
Method and apparatus for applying a secondary layer or coating on surfaces of wet formed board materials are disclosed. The secondary layer is applied to the wet mat material of the board being manufactured during press rolling of the wet mat. The secondary layer material is supplied in the form of a slurry which is caused to adhere to the surface of a wire screen. The wire screen surface bearing the layer of slurry material is then pressed onto the mat surface to deposit the slurry layer thereon.

REFERENCES:
patent: 3270476 (1966-09-01), Ensled et al.
patent: 3350260 (1967-10-01), Johnson
patent: 3681193 (1972-08-01), Nykopp
patent: 3775244 (1973-11-01), Hubschmann
patent: 3905864 (1975-09-01), Curry et al.

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