| 摘要 |
A coating apparatus is provided which does not form lines having a constant pitch in applying a coating solution to a web (16) or a sheet medium by using a coating rod (12A, 12B, 12C) or a coating roller (12) even at a high speed. The present invention relates to a coating apparatus for applying a coating solution to a continuously running support medium via a coating rod (12C). A coating rod (12C) is a cylindrical body having an outer surface in which convex sections having a width P1 and concave sections having a width P2 are alternately formed in an axial direction of the surface, so that a series of convex and concave sections having a constant pitch P=P1+P2 are formed. Each of the convex sections includes a flat part having a maximum height roughness (Rz) of 3 mum or less, and the flat part has a width P3 of 0.55 P or more.
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