| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding method in which an injection-molded article, the weld part of which has hardly a defective external appearance, can be molded even when a thermoplastic resin composition containing a bright material is used, and to provide the injection-molded article to be obtained by the injection molding method.SOLUTION: The injection molding method, which is used for injection-molding the thermoplastic resin composition containing the bright material, comprises: a packing step of packing the thermoplastic resin composition of a molten state in a metal mold the whole or a part of whose inner wall surface is heated in such a state that a medium to be used for adjusting the temperature of the metal mold does not remain substantially in the whole or a part of a plurality of medium passages 14, 16 arranged in the metal mold; and a cooling step of cooling the metal mold by making the medium pass through the whole or a part of the plurality of medium passages. |
