| 摘要 |
<p>A peripheral surface of a coating rod (12) has an area where grooves (convex portions) are formed. This area is ground by a grinding apparatus (30) by which a maximum height Ry of the rod surface is adjusted to 15µm or less. Further, a ratio of D/W is adjusted to 0.01 or more, wherein D is a total distance of the convex portions (21b) of the rod actually abutting on a web (11) in an axial direction of the rod, and W is a coating width of the web. Furthermore, straightness of the rod is adjusted to 30µm or less per 1m, and roundness of the rod is adjusted to 10µm or less. Micro-projections (22) are removed by grinding so that scratches of a coating surface are prevented from occurring. Coating unevenness is prevented by improving the straightness and the roundness.</p> |
