| 摘要 |
This invention provides a precoated metal plate that is improved in color shading prevention and adhesion and is produced by simultaneous multilayer coating. In the precoated metal plate, the center line average roughness Ra in the coating film interface is not less than 0.3μm, and the maximum height from the waviness center line in the interface is not more than 50% of the layer thickness. There are also provided a top clear coated metal plate, which comprises a clear layer as an upper layer, has an interfacial center line average roughness Ra of 0.3 to 0.7μm and has excellent weathering resistance, a precoated metal plate having excellent processability and corrosion resistance, which contains not less than 30% by mass on average of a rust preventive pigment so that the average rust preventive content of the upper layer is lower than that in the average rust preventive pigment of the lower layer, the concentration gradient is lowered so that the position from around the interface of the upper layer and the lower layer is increased, and the roughness Ra in the interface of the lower layer and the upper layer is 0.3 to 0.7μm, and a process for producing the same. |
