| 摘要 |
Disclosed is a roll coating apparatus capable of partial surface coating. The roll coating apparatus according to the present invention, which manufactures a printed electronic device by printing conductive ink on a film substrate by passing a coating roll, comprises: a coating roll; and a vacuum pump connected to the inside of the coating roll by a suction pipe. The coating roll has at least one ring-shaped groove on the outer circumferential surface thereof in a circumferential direction, and a ring is inserted into the ring-shaped groove. |
