Patent ID: 9718226
Date: 2017-08-01
CPC Classifications: B29C

Claim:
1. A manufacturing method of an injection molded product using an injection mold in whose cavity molten resin containing an aluminum pigment as a luminous material meets as flowing in opposite directions, the injection mold comprising: resin reservoirs which are connected to both sides of the cavity, corresponding to the position where the molten resin meets, and into which the molten resin partly flows, wherein the cavity has a cross-sectional shape having a surface forming a design surface of an injection-molded product and both side surfaces continuing from the surface forming the design surface, wherein one of the resin reservoirs is connected to one of the side surfaces and the other resin reservoir is connected to the other side surface, across the position where the molten resin meets and wherein, when the molten resin partly flows into the resin reservoirs, flow of the molten resin, which is substantially in parallel from the surface forming the design surface to the resin reservoirs, is generated and aluminum pigment makes an orientation angle of 120° to 140° on the surface of the design surface at the position where the molten resin meets.