| 摘要 |
PROBLEM TO BE SOLVED: To hold the caster resistance and crack prevention of a composite material and enhance size stability for temperature and relative humidity by compositing a cellulosive and a thermoplastic synthetic resin, and laminating a surface decorative material on the surface side of the cellulosine resin composite material specifying thickness. SOLUTION: A floor material 3 composites the cellulosive and the thermoplastic synthetic resin of at least a specific rate, and a surface decorative material 2 is laminated on the surface side of a cellulosive resin composite material 1 making thickness at least 0.1 mm or more. The cellulosive resin composite material 1 can be continuously molded by the extruding molding thermoplastic synthetic resin making the cellulosive filler, and then molding thickness receives limit by the particle diameter of the cellulosive being the using filler. It is advantageous in a cost, the cellulosive of the particle diameter not exceeding 0.1 mm or more is used, the cellulosive contains at one part or more, and the thickness of the cellulosive resin composite material 1 is at lest 0.1 mm or more. Thereby surface altitude is high, a smooth surface can be obtained, caster resistance, crack resistance or the like is improved, and size stability for temperature and relative humidity is also improved by the existence of the cellulosive of the diameter of 0.1 mm or more.
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