| 摘要 |
The invention provides an apparatus and method for supplying solution, and a solution film-forming method which can restrain polymer solution leakage or air sinks in the supply pump configured at the downstream of a send-out pump. A mucilage supply device (13) is provided with a tank (17), a send-out pump (18), a pressure meter (22), a power supply pump (21), an adjusting valve (23) and a controller (24). Mucilage (11) is supplied to a film-forming device (14). The mucilage (11) in a tank (17) is sent out through a pump (18). One part of sent out mucilage (11) is sent back to the tank (17) through a second tube (L2). The mucilage (11) supplied to a curtain coating module (28) through the power supply pump (21) is ejected through the curtain coating module (28) to from a film (12). The entrance side pressure of the power supply pump (21) is based on the detection result of the pressure meter (22), and the opening adjustment of an adjustment valve (23) through the controller (24) is controlled in a preset scope. |
