| 摘要 |
PROBLEM TO BE SOLVED: To improve the function and workability of an interior finish material by bonding a decorated plywood, a wood plate having a viscous or an elastic resin injected thereto, and a buffer material together in this order from above, to form lamination. SOLUTION: An interior finish floor material or an interior finish wall material is formed by bonding a decorated plywood 1 consisting of an inexpensive wood veneer and a decorative veneer formed of a natural valuable wood stuck to a surface of the former, an elastic resin injected plate 2 obtained by injecting a viscous or an elastic resin into a wood plate, and a buffer material 5 formed of a foamed resin or the like, together in this order from above, to thereby form lamination. Alternatively, the decorated plywood 1, the elastic plate 2, a wood substrate 4 such as a plywood, and the buffer material 5 may be bonded together in this order from above. Next, cut grooves are formed in a rear surface of the substrate 4, and therefore the internal finish material may conform to an uneven surface of concrete when it is directly stuck to the same. Further, impact sound from above is dispersed. When the decorated plywood 1 is hit at its upper portion, the elastic plate 2 functions as a buffer material, to damp hit sound. Thus, high soundproof property can be ensured, the workability and dimensional stability are improved at a low cost, and further the weight reduction is achieved.
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