| 摘要 |
The present invention provides a manufacturing method and manufacturing device for manufacturing a functional film that does not undergo a deterioration in performance when the film is manufactured using a coating fluid that includes a material in which oxygen induces a deterioration in performance. This manufacturing method for a functional film has a coating step in which a coating fluid having a dissolved oxygen concentration of 1000ppm or less is supplied to a die coater 36 having a backup roller 44, and the die coater 36 coats a flexible support body W, which is wound onto and conveyed by the backup roller 44, with the coating fluid. A depressurization chamber 15 that covers the surface of the flexible support body W is provided to the upstream side of the die coater 36 with respect to the conveyance direction of the flexible support body W. An inert gas is supplied to the depressurization chamber, and the volume of exhaust from the depressurization chamber 15 is greater than the volume of inert gas supplied to the depressurization chamber 15. |
