| 摘要 |
PROBLEM TO BE SOLVED: To prevent a deviation of thickness of coating films and to prevent particlar impurities from sticking to the surface of a coating article such as a copper clad laminate, in a dip coating apparatus for forming the coating films by dipping the article into the coating liquid in a tank. SOLUTION: An opening edge 6 is formed at the top end of the tank. This opening edge has a uniform height over the entire circumference of the tank and the coating liquid overflows uniformly over the entire circumference. A receiving groove 7 is also formed over the entire circumference to receive the overflowed coating liquid. The coating liquid is circulated by a pump 4. |
