| 摘要 |
PROBLEM TO BE SOLVED: To provide an ALC decorative panel having a surface with pointed groove joints cut in its surface layer, while enhancing the quality of paint and waterproofness on the surface by reducing holes and cracks in paint after drying, with the pointed groove joints providing a solid feel like that of tiles, and to provide a method for manufacturing time same. SOLUTION: In an ALC decorative panel 1, the paint of a first paint film layer formed on the overall surface of the surface layer of an ALC panel 2 is packed into cells in the surface layers of pointed joint grooves 3, and the paint of a second paint film layer formed on the surface of the first paint film layer expect for the pointed joint grooves 3 and the paint of the first paint film layer are made of aqueous primers with a color differenceΔEab of 1.5 or more in a Lab surface color system. The process of cutting the pointed joint grooves 3 in the surface layer of the ALC panel 2, the process of spraying the aqueous primer as the first paint film layer using a spray gun, the process of blowing air before the aqueous primer cures, and the process of applying a finish paint different in color from the aqueous primer as the second paint film layer using a roller are performed in sequence.
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