| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface reforming method and apparatus, and a multilayer coating method and apparatus which can obtain a rugged shape onto a surface, and to provide a coated material. <P>SOLUTION: The surface reforming apparatus comprises: a coating part 18 which coats a support body 16 with a polymer solution prepared by dissolving a thermoplastic resin into a first solvent; a drying part 20 which dries a coated film dried up to the dry point by supplying a hot air containing vapor of a second solvent having a molar volume smaller than that of the first solvent to the coated film; and a coating part 22 which coats the dried coated film with the coating liquid to form an overcoat layer. The drying part 20 performs drying treatment under conditions satisfying the relation: 1.0≤C×R(273.15+T)/(M×P<SB>T</SB>)≤1.8, wherein T presents film temperature [°C] at the dry point, C presents solvent vapor amount [g/m<SP>3</SP>], P<SB>T</SB>presents saturated water vapor amount [Pa] at the film surface temperature T, R denotes gas constant, and M presents molecular weight of the second solvent. <P>COPYRIGHT: (C)2010,JPO&INPIT |
