Apparatus for drying a moisture-containing layer at one side of

Details Apparatus for drying a moisture-containing layer at one side of Apparatus for drying a moisture-containing layer at one side of

1991-04-09

1993-01-19

Jones, W. Gary

Coating apparatus

With heat exchange, drying, or non-coating gas or vapor...

Running length work

34114, F26B 300

Patent

active

051799081

ABSTRACT:
The uncoated side of a running web-shaped substrate, the other side of which carries a layer containing an evaporable solvent, is contacted by at least one idler guide roller which is rotated by the substrate. The angle of contact between the uncoated side of the substrate and the peripheral surface of the guide roller is increased by streams of compressed conditioning gas which is discharged by the orifices of two venturis one of which is located immediately upstream of the guide roller and directs gas counter to the direction of advancement of the substrate. The other venturi is located immediately downstream of the guide roller and its orifice discharges gas in the direction of advancement of the substrate.

REFERENCES:
patent: 4231164 (1980-11-01), Barbee
patent: 4365425 (1982-12-01), Gotchel
patent: 4764402 (1988-08-01), Pagendarm
patent: 4886564 (1989-12-01), Pagendarm

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