Method and apparatus for coating webs with a plurality of liquid

Details Method and apparatus for coating webs with a plurality of liquid Method and apparatus for coating webs with a plurality of liquid

1977-01-27

1979-05-15

Lawrence, Evan K.

Coating processes

Applying superposed diverse coating or coating a coated base

118 50, 118411, 118412, 427434A, B05D 134, B05C 302

Patent

active

041548795

ABSTRACT:
Method and apparatus for coating a moving web with a multilayer liquid composition. A pool of the multilayer liquid composition is formed by flowing liquids along spaced paths through discharge slots exiting into a cavity of a liquid feeding apparatus, the cavity being located adjacent to and spaced apart from the moving web. The discharge slots are spaced progressively farther from the web and the liquid flow paths are aligned in directions that do not intersect the web so that each path is accessible to a cleaning probe inserted through the path slot. The multilayer liquid composition is formed into a bead which extends from the pool into contact with the moving web, and the moving web entrains the multilayer composition from the bead.

REFERENCES:
patent: 2761417 (1956-09-01), Russell et al.
patent: 3928679 (1975-12-01), Jackson et al.

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