| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cellulosic resin film reduced in thickness irregularity manufactured by a molten film forming method, and its manufacturing method. <P>SOLUTION: In the manufacturing method of the cellulosic resin film using the molten film forming method for discharging the molten resin melted in an extruder 22 toward a running or rotating cooling support 28 as a sheet-like molten resin from the discharge port of a die 24 and cooling and solidifying the sheet-like molten resin to peel the same as the cellulosic resin film 12' and taking up the cellulosic resin film 12''' around a winding core, the oscillation in the vicinity of the surface of the cooling support 28 of the sheet-like molten resin is set to 10 dB or lower. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
