Method and apparatus for coating thin film
AssigneesFuji Photo Film Co., Ltd., Tomoegawa Paper Co., Ltd.
InventorsTomonari Ogawa, Kazuhiko Nojo, Tsutomu Kurokoshi
Life of this patent
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Abstract
A method and apparatus for coating a thin film which comprises supplying an organic solvent-based coating solution onto the surface of a transferring member from which the coating solution is then allowed to come in contact with a film base so that it is applied thereto while the coating solution which has been supplied onto the transferring member is being partially recovered for reuse.
Claims8
A method for coating a thin film comprising the steps of:
- supplying an organic solvent-based coating solution onto the surface of a transferring member,
- allowing the coating solution to come in contact with a film base to be applied thereto,
- partially recovering the coating solution supplied onto the transferring member for reuse,
- wherein
- the vapor-liquid interface is covered by an air inflow preventive cover on the area except the area of contact of the transferring member with the film base, while the contact area is exposed at the opening,
- the edge of the opening of the air inflow preventive cover extends to a position in the vicinity of the film base at least on the film base conveyance side, and
- the coating zone of the transferring member is disposed in a isolated space formed by partitioning from the open air.
An apparatus for coating a thin film which supplies an organic solvent-based coating solution onto the surface of a transferring member from which the coating solution is allowed to come in contact with a film base so that the coating solution is applied thereto while the coating solution supplied onto the transferring member is being partially recovered for reuse,
- said apparatus comprising:
- a coating solution recovering portion, and
- an air inflow preventive Cover including an opening at which the area of contact of the transferring member with the film base is exposed, and covering the vapor-liquid interface on the area except the contact area,
- the edge of the opening extending to a position in the vicinity of the film base.
Dependencies are inferred from the claim text.