Fibrous web saturator

Details Fibrous web saturator Fibrous web saturator

1984-10-12

1986-05-20

Lawrence, Evan K.

Coating processes

Vacuum utilized prior to or during coating

Organic base

118 50, 118405, 118424, 118427, 427326, 4274344, B05D 300, B05D 312, B05C 312, B05C 11115

Patent

active

045900990

ABSTRACT:
An apparatus and method to saturate a fibrous web. The apparatus comprises a sealed chamber divided to form a low pressure preparation zone and a high pressure treatment zone. Air is evacuated from the open area between the fibers in the web in the vacuum zone and liquid in the treatment zone is forced into the evacuated open area between the fibers in the web. A pair of nip rollers are submerged in liquid in the treatment zone for squeezing residual air and liquid from the open area between the fibers in the web to cause liquid to be drawn into the open area between the fibers in the web upon exiting the nip between the rollers.

REFERENCES:
patent: 1322327 (1919-11-01), Minton
patent: 1595491 (1926-08-01), Minton
patent: 1633121 (1927-06-01), Minton
patent: 2125364 (1938-08-01), Waldron
patent: 3644137 (1972-02-01), Fox et al.
patent: 3826703 (1974-07-01), Russell
patent: 3848439 (1974-11-01), Lopata
patent: 3881445 (1975-05-01), Nothiger

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