| 摘要 |
PROBLEM TO BE SOLVED: To provide a peripheral surface immersion type gravure coater for positively discharging air bubbles contained in a coating solution within a chamber to eliminate the filling of a cell with the air bubble-containing coating solution and preventing the leak of the coating solution from the contact part of a doctor with a gravure roll to always perform proper coating. SOLUTION: This peripheral surface immersion type gravure coater is equipped with the gravure roll 2, a coating block 3, a coating solution supply device 5 for forcibly supplying the coating solution into the chamber 4 and a coating solution recovery device 6 for recovering the excess coating solution in the chamber 4. The coating solution is supplied to the end part on the side of the doctor 8 in the chamber 4 in a state containing an air layer part 23, and coating is performed in such a state that negative pressure air is allowed to act on the air layer part 23 by a negative pressure device 27. Air bubbles contained in the coating solution are floated to the air layer part 23 to be diffused and discharged through an exhaust passage 25 to effectively remove air bubbles in the coating solution. Since the supply pressure of the coating solution does not act on the doctor 8, the leak of the coating solution can be certainly eliminated. COPYRIGHT: (C)2003,JPO
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