METHOD AND DEVICE FOR FORMING FLEXIBLE MEMBRANE CAPABLE OF REDUCING REQUIRED TIME FROM A MEMBRANE DRY PROCESS TO SEPARATION PROCESS THROUGH A MEMBRANE COOLING PROCESS, AND A METHOD FOR FORMING SOLUTION FILM

摘要

PURPOSE: A method and device for forming a flexible membrane are provided to efficiently product a flexible membrane or film while restraining a thickness deviation.;CONSTITUTION: A method and device for forming a flexible membrane comprises: a step of flowing dope to a movable support; a step of evaporating a solvent from a flexible membrane which is formed on a surface of the movable support; a step of cooling the flexible membrane by being a state able to be returned; a step of separating the flexible membrane from the movable support; a step of heating the movable support; and a step of heating the flexible membrane by using heat applied to the movable support.;COPYRIGHT KIPO 2013;[Reference numerals] (127) Wet film drying process; (131) Dope-flowing process; (132) Flexibilization process; (133) Membrane-heating process; (134) Skin layer-forming process; (135a) Pre membrane-drying process; (135b) Post membrane-drying process; (136) Membrane-cooling process; (137) Separation process; (138) Support-heating process; (21) Film; (24) Dope; (25) Wet film; (61) Flexible membrane