| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coating method to a base material capable of beautifully coating with a thin film at a high speed when applying multilayer coating liquid onto the continuously traveling base material using a roll coater. <P>SOLUTION: The multilayer coating liquid is transferred to the base material by supplying the multilayer coating liquid to a rotating applicator roll with a die coater and then making the applicator roll contact with the continuously traveling base material. At this time, the applicator roll rotates in the inverse direction of the base material at a contact part with the base material, and the multilayer coating liquid supplied by the die coater becomes μ1<μ2 when the viscosity coefficient of the coating liquid that forms a bottom layer on the applicator roll is made to be μ1 and the viscosity coefficient of the coating liquid that forms an upper layer on the applicator roll is made to be μ2. The multilayer coating liquid remaining at the applicator roll without being transferred to the base material is removed from the applicator roll. <P>COPYRIGHT: (C)2013,JPO&INPIT |
