| 摘要 |
A curtain coater for coating a substrate, comprising: a nozzle system for creating a curtain of at least one coating fluid dropping onto the substrate, a porous curtain guide structure, which has a guide surface for providing a lateral guiding action for the curtain, which cambers round convexly towards the curtain across a width extending beyond the thickness of the curtain measured transversely to the curtain, at least one cavity extending in the longitudinal direction of the curtain guide structure for an auxiliary fluid to be guided on the guide surface and a cavity wall surrounding the cavity, of which the curtain guide structure forms only a circumferential segment, and the circumferential segment bounding the cavity is a part of an external contour of the curtain guide structure extending about a longitudinal axis of the curtain structure. |
