| 摘要 |
PROBLEM TO BE SOLVED: To provide a precoated metal sheet further enhanced in the antistaining properties of a precoated metal sheet of a conventional technique and also having good processability at the same time. SOLUTION: The precoated metal sheet is constituted by arranging the outermost surface layer and the lower layer arranged on the outermost surface layer and characterized in that the outermost surface layer contains an amino resin, the concentration of the amino resin in the surface part of the outermost surface layer is higher than that of the aminoplast resin in the interfacial part with the lower layer, the lower layer contains the amino resin and the concentration of the amino resin of the interfacial part of the outermost surface layer in the lower layer is higher than that of the amino resin in the interfacial part on the side of the metal sheet in the lower layer. COPYRIGHT: (C)2006,JPO&NCIPI |
