Device for applying a liquid to a flexible carrier

Details Device for applying a liquid to a flexible carrier Device for applying a liquid to a flexible carrier

1991-04-10

1992-12-01

Wityshyn, Michael G.

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

118419, 427356, B05C 502

Patent

active

051677121

ABSTRACT:
An application device for applying a liquid, such as a photographic photosensitive liquid, to the surface of a flexible carrier that is continuously moving on path rollers, while an outlet portion of a slot of an extrusion-type application head is pushed toward the surface of the flexible carrier. The application head has an outlet portion including two end portions having an intermediate portion therebetween, with the top surface of the intermediate portion horizontally lying below top surfaces of the end portions. As the carrier passes over the outlet portion, a gap between the side edge portions of the carrier and the surfaces of the end portions is less than the width of the gap between the central portion of the carrier and the surface of the intermediate portion. Further, first and second wall surfaces vertically extend up from the surface of the intermediate portion to couple respective surfaces of the end portions so that the solvent applied to the side edge portions of the carrier is prevented from being spread to the central portion of the carrier as the carrier moves past the application head. The application device prevents a solvent, which is applied in advance to side edge portions of the carrier, from spreading into the central portion of the carrier where the liquid is to be applied.

REFERENCES:
patent: 4299186 (1981-11-01), Pipkin et al.
patent: 4424762 (1984-01-01), Tanaka et al.

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