| 摘要 |
PURPOSE:To uniformize the thickness of the coat in the width direction by moving at least one side of one roll in the coating zone in the direction vertical to the web surface and to eliminate the variations in the film thickness in accordance with the variations in the thickness of the coated film. CONSTITUTION:The web 1 delivered from a delivery roll is sent to the coating head zone, coated with a coating liq. 2 by a coating head 3, and then sent to the drying zone. The coating liq. 2 is sent to the coating head 3 by a proportioning pump, a liq. reservoir 4 is formed between the tip of the coating head 3 and the web 1, and the web 1 is coated at this site. In this case, the thickness of the coat immediately after coating is detected by a thickness meter 5, and at least one roll among rolls 6-12 before and after the coating head is inclined in the direction to eliminate the variations in thickness in accordance with the variations to uniformly coat the web which is partially elongated. |
