Method and apparatus for liquid coating, and their use

A process for the liquid coating, in which with a laterally open groove (5) and one of the lateral opening (47) of the groove (5) facing surface (91) a reservoir (6) is formed of a substrate (9), which (with fluidem coating material 35) is filled with a gap (7) between the channel (5) and the surface (91) of the substrate (9) remain, and the liquid surface (36) of the fluid coating material (35) on the surface (91) of the substrate ( 9) forms a meniscus (37), and wherein the substrate (9) and the groove (5) along a direction (42) guided past one another with a vertical component, wherein the width (B) of the channel is made wider than a on a substrate to be coated surface and an unlimited liquid surface Training Direction meniscus.