Process and device for lacquering or coating a substrate

摘要

The appts. includes a container (10) from which a substrate (29) is covered with liq. (11) through a capillary tube (13) ending in a nozzle (40). A coating (31) is typically formed up to 5 to 50 microns thick in the wet condition. The structure (12) enclosing the capillary is mounted on a vertical rod (15) movable within a bellows (17) by e.g. a hydraulic or pneumatic jack (44). Upon completion of a coating, the tube is lowered through the aperture (48) in the top of the container, until the nozzle is below the surface of the liquid. The aperture is closed (46) by translation of a cover plate (19).