Apparatus for applying a coating composition onto a moving web

Details Apparatus for applying a coating composition onto a moving web Apparatus for applying a coating composition onto a moving web

1975-10-15

1978-07-25

McIntosh, John P.

Coating apparatus

With vacuum or fluid pressure chamber

118124, 118411, 118603, B05C 502, B05C 1104

Patent

active

041022998

ABSTRACT:
A method and apparatus for applying a coating composition onto a moving web especially a paper web, in which an excess of said coating composition is applied to said web. The web thereafter passes smoothing means to uniformly regulate the final thickness of the coating and simultaneously to remove the excess coating composition. This smoothing operation is performed under an adjustable partial vacuum. The removed excess coating composition is recirculated without being mixed with the coating composition within the application area and is mixed with fresh coating composition before reuse within the process.

REFERENCES:
patent: 2784697 (1957-03-01), Uhleen
patent: 3190261 (1965-06-01), Ziffer
patent: 3196832 (1965-07-01), Zin
patent: 3274307 (1966-09-01), Bergstein et al.
patent: 3461837 (1969-08-01), Dreher
patent: 3470848 (1969-10-01), Dreher
patent: 3474757 (1969-10-01), Dreher
patent: 3486482 (1969-12-01), Hunger
patent: 3854441 (1974-12-01), Park
patent: 3937177 (1976-02-01), Lloyd

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