| 摘要 |
The invention comprises: a movement mechanism (18) that has a restraining means (41) capable of mechanically restraining both widthwise ends of a film-shaped microporous film precursor (F) in a drying chamber (8), and sends out the film-shaped microporous film precursor in a state where the both widthwise ends thereof are restrained by the restraining means; a drying means (15) for causing the solvent or the plasticizer to evaporate from the film-shaped microporous film precursor to be sent out; and a liquid seal tank (T2) for isolating the drying chamber from the atmosphere outside the chamber by means of a prescribed sealing liquid. The both widthwise ends of the film-shaped microporous film precursor are restrained by the restraining means in the sealing liquid of the liquid sealing tank. |
