SOLUTION FILM-FORMING METHOD

摘要

PURPOSE: A solution film-forming method is provided to easily eliminate portions having a different thickness by a welding line from the film because a band-shaped film is cut in a width direction. CONSTITUTION: A solution film-forming method is as follows. A dope(113) is reeled in a driving roller(131) and constantly supplied to a moving band(91) moving to a longitudinal direction so that a flexible membrane consisted of dopes is formed. Both ends of the flexible film of a width direction peeled off from a supporter is cut. Cutting positions of both end parts are settled.