| 摘要 |
PURPOSE:To perform stable high-speed coating of a coating liquid by feeding the second coating liquid of lower viscosity to both end sides of the first coating liquid of slide hopper at a flow rate lower than that of the first coating liquid in a slide bead coating method. CONSTITUTION:To the outside of the first coating liquid in contact with the side plates 18 and 19 provided on both sides of slide hopper, a lower viscosity of the second coating liquids (e.g., an aqueous solution containing a surfactant) 22 and 23 are supplied from the liquid supply ports 20 and 21 and then pushed out of the discharge ports 18 and 19 for coating. Thus, the both end portions of bead are strengthened by the supply of the second low viscosity coating liquid to both ends of the first coating liquid, permitting stable high-speed coating to be performed. |
