PROBLEM TO BE SOLVED: To provide a method of manufacturing a decorative plate B, in which a decorative sheet material 10 is stuck on the surface of a composite wood plate A obtained by compounding plywood 1 such as planted tree plywood and a wood fiberboard 2, and which enables the high-productivity manufacture of the decorative plate B preventing such as warpage and torsion or the like from being generated in manufacture and use.
SOLUTION: The plywood 1 and the wood fiberboard 2 are stacked through a hot-melt resin adhesive 3. The laminate 5 is cold pressed by a roll press device 6 while the hot-melt resin adhesive 3 is in a molten state, so as to be formed into the composite wood plate A in which the wood fiberboard 2 is integrally bonded to the surface side. A reinforcing sheet material 11 is stuck on the back surface side of the composite wood plate A, and the decorative sheet material 10 is stuck on the surface so that the decorative plate B, which does not cause warpage, torsion, and lift, can be manufactured with high productivity.
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