| abstract |
Embodiments related to the present disclosure provide a manufacturing apparatus for a composite film, which has a heating mechanism for satisfying Tg+60°C≤temperature T≤Tm (Tg: glass transition temperature [°C] of thermoplastic resin, Tm: the temperature T of the melting point of the thermoplastic resin [° C.]) heat treatment of the porous base material containing the thermoplastic resin; a coating mechanism that coats the heat-treated porous base material with a coating liquid containing at least a resin and a solvent A coating layer is formed on one or both sides of the coating layer; and a solidification mechanism is used to solidify the coating layer to obtain a composite film. |