| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer coating method, a multilayer coater and a multilayer coated flat plate, capable of prohibiting the generation of foams in multilayer coating of bake-coating a coating film of 3 layers or more on a flat plate such as a steel plate. SOLUTION: When a thin coating film (a ground coating film) is formed on the surface of a material to be coated, is heated to decrease a solvent concentration in this ground coating film, and then the multilayer coating film is formed on the ground coating film to be bake-coated, the foams do not generate even if a thickness of the multilayer coating film is large. The coating film(the ground coating film) is, to say, formed on a moving flat plate to be heated, thereafter a multilayer coating film of 2 layer or more is formed on the ground coating film at the same time and then is heated. An amount of the solvent in the ground coating film is less than 30 mg/m<SP>2</SP>before forming of the multilayer coating film. The ground coating film is heated to 200-300°C within a range from starting of heating to 120 sec. COPYRIGHT: (C)2006,JPO&NCIPI
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