| 摘要 |
PROBLEM TO BE SOLVED: To provide a patterned composite resin molded object having a pattern formed by a material itself, not losing a flat grain pattern even if a surface is abraded because the pattern is formed in the direction right-angled to an extrusion direction to reach up to a depth direction and imparting appearance near to that of natural wood, and a method for manufacturing the same. SOLUTION: A compound containing a resin (A) and a substance (B) having a refractive index different from that of the resin (A) is controlled in an extrusion molding process so that a gap part is partially present in the volume of a screw compression part to leave a laminated pattern at every screw pitch in the extruded molded object. By this method, the patterned composite resin molded object containing the substance having the refractive index different from that of the resin, different in the concentration and/or size of the substance in parts at every pattern and having the pattern in the direction right-angled to the extrusion direction so as to reach up to the depth direction is obtained. |
