METHOD AND DEVICE FOR MANUFACTURING RESIN FILM WITH COATING FILM

PROBLEM TO BE SOLVED: To provide a method and device for manufacturing a resin film with a coating film capable of preventing overheating of an unapplied portion to which coating fluid is not applied when the coating fluid applied to the resin film is dried in a resin film manufacturing process.SOLUTION: A method of manufacturing a resin film with a coating film includes: a process A of applying coating fluid to a resin film that is being conveyed and forming an applied portion to which the coating fluid is applied with given thickness and a transition region that is formed between the applied portion and an unapplied portion having no coating fluid applied thereto, the transition region applied with the coating fluid with thinner thickness than that applied to the applied portion; a process B of applying overheating inhibiting fluid to at least part of the transition region and the unapplied portion so that the fluid is applied to a boundary portion between the unapplied portion and the transition region; and a process C of drying and solidifying the coating fluid on the applied portion and the transition region by heating and of drying the overheating inhibiting fluid by heating the overheating inhibiting fluid, so as to form the coating film on the resin film.SELECTED DRAWING: Figure 1 【課題】樹脂フィルムの生産工程において、樹脂フィルムに塗布された塗液を乾燥させる際、塗液が塗布されていない未塗布部の過加熱を防止することが可能な、塗膜付き樹脂フィルムの製造方法および製造装置を提供すること。【解決手段】本発明の塗膜付き樹脂フィルムの製造方法は、搬送中の樹脂フィルムに塗液を塗布する工程であって、塗液が任意の厚みに塗布された塗布部と、この塗布部と塗液が塗布されていない未塗布部との間に塗液が塗布部よりも薄い厚みで塗布された遷移領域と、を形成する工程Ａと、 未塗布部と遷移領域との境界部分にかかるように、遷移領域の少なくとも一部と未塗布部に過加熱抑制液を塗布する工程Ｂと、 塗布部と遷移領域の塗液を加熱して乾燥固化させると共に、過加熱抑制液を加熱して過加熱抑制液を乾燥させて、樹脂フィルムに塗膜を形成する工程Ｃと、を有する。【選択図】図１