Method and apparatus for drying coated film
AssigneeFUJIFILM Corporation
InventorsKazuhiro SHIMODA, Nobuo HAMAMOTO, Yasunaga HARABE
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Abstract
In a drying method of an aspect of the present invention, drying steps are conducted immediately after coating in a drying zone, and during the execution of drying by blowing the one-way flow drying wind flowing from one edge side to another edge side in the width direction of the continuous support, the windless drying step is conducted in a windless drying zone provided in the drying zone where the drying wind is not blown.
Claims9
A drying method for a coated film formed by applying a coating liquid containing an organic solvent over a traveling continuous support, the method which sequentially conducts, immediately after the application, following steps in a drying zone where a coated surface to be dried of the traveling continuous support is surrounded:
- a first drying step for drying the surface of the coated film by conveying the continuous support through a first drying wind zone in which an one-way flow drying wind, flowing from one edge side to another edge side in a width direction of the continuous support, is supplied;
- a windless drying step for drying the surface of the coated film by conveying the continuous support through a windless drying zone in which the drying wind is not blown;
- and
- a second drying step for drying the surface of the coated film by conveying the continuous support through a second drying wind zone in which an one-way flow drying wind, flowing from one edge side to another edge side in a width direction of the continuous support, is supplied.
A drying apparatus for a coated film formed by applying a coating liquid containing an organic solvent by means of a coating device over a traveling continuous support, the drying apparatus comprising:
- a main drying apparatus which is disposed immediately after the coating device to form a drying zone surrounding a surface of the coated film to be dried of the traveling continuous support;
- a first drying wind zone formed at former half of the drying zone and comprising an one-way air flow generating device which generates a drying wind flowing from one edge side to another edge side in a width direction of the continuous support;
- a second drying wind zone formed at latter half of the drying zone and comprising an one-way air flow generating device which generates a drying wind flowing from one edge side to another edge side in a width direction of the continuous support;
- a windless zone formed between the first drying wind zone and the second drying wind zone and which does not blow the drying wind;
- and
- partition boards which divide the drying zone into the first drying wind zone, the second drying wind zone, and the windless zone each other or respectively.
Dependencies are inferred from the claim text.