Mazda Motor Corporation

Nippon Paint Automotive Coatings Co., Ltd

Tatsuo Tsuneoka

Masafumi Shinoda

Fumi Hirano

Hiroshi Kubota

Sakura Nakano

Hiroaki Fujii

Minoru Kimura

Yoshiko Aoki

The present invention is intended to solve a problem that a coating film has an uneven thickness in the case where a coating targethas a stepped portion extending in a predetermined direction on its coating surface. To solve the problem, a follow-up coating is performed along the stepped portion S extending in the predetermined direction after coating of the entire coating surface of the coating targetso that paint mist adheres more to a relatively-recessed side of the stepped portion S.

Coating method and coating device

The purpose of the present invention is to obtain a method for forming an excellent multi-layer coating film of high chroma and brightness and a rich color. With the method, color mottling does not occur easily in the coating film and the design obtained is homogeneous even without strict control of variations in film thickness during coating. The method for forming the excellent multi-layer coating film comprises: forming a metallic base coating film on the surface of the object to be coated by applying a metallic base coating containing a shiny material; then forming a color base coating film by applying a color base coating; subsequently forming a clear coating film by applying a clear coating on the color base coating film; and heat-curing the metallic base coating film, the color base coating film and the clear coating film obtained. In the method, the light reflectance of the metallic base coating film is in a specified range and the light transmittance of the single color base coating film obtained by heat-curing the color base coating film as a single film is adjusted to a specified range.

Method for forming excellent multi-layer coating film

Growing community of inventors

Higashihiroshima, Japan

Tatsuo Tsuneoka