| 摘要 |
PURPOSE:To provide a water film forming device which can form a water film having a uniform thickness on a casting drum. CONSTITUTION:A water film forming device possesses a main wet air blow-off device 21 extending in the direction of an axis of a casting drum 4 and an auxiliary air blow-off devices 22, 22 arranged respectively on both end parts of the main wet air blow-off device 21 in a resin film supply device 5 side of a main wet air blow-off device 21. Wet air from a wet air generating device is discharged through the wet air blow-off devices 21, 22 each. The discharged wet air is dewed on the casting drum 4 and the water film is formed on the casting drum 4. A water film is formed in piles by the auxiliary wet air blow-off devices 22, 22 on both end parts of the water film formed by the main wet air blow-off device 21. |
