Blade type fountain coater and method

Details Blade type fountain coater and method Blade type fountain coater and method

1981-09-10

1983-09-20

McIntosh, John P.

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

118410, 118413, B05D 312, B05C 502

Patent

active

044056613

ABSTRACT:
A fountain type web coating applicator and method wherein flow of coating material from source to a doctor blade coating nip with the continuously travelling web is subjected to a plurality of successive pressure drops so that coating material reaches the coating nip uniformly throughout the extent of the doctor blade edge. One of the pressure drops is through a multi-port pressure drop device and another pressure drop is through a slit orifice pressure drop device. A novel arrangement for easy replacement clamping of the doctor blade is provided. A doctor blade thruster is adjustable up and down along the blade relative to the upper coating nip edge of the blade.

REFERENCES:
patent: 1484705 (1921-10-01), Frothingham et al.
patent: 3131092 (1964-04-01), Coghill
patent: 3348526 (1967-10-01), Neubauer
patent: 3882817 (1975-05-01), Zink
patent: 4250211 (1981-02-01), Damrau et al.
patent: 4340011 (1982-07-01), Wahren et al.

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