| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for mold interior coating which carries out a mold interior coating method capable of forming a coated film on both the surfaces of a design surface and a non-design surface of a laminate molded product without using a coated-film forming mold, to provide an injection molding apparatus, and to provide a coating method for the laminate molded product.SOLUTION: In a mold interior coating method, in a first molding step and a second step, a laminate molded product having at least two resin layers is formed by an injection molding apparatus (1) installed with a common mold (19), a dummy plate (6) and a rotary mold part (40) having at least two mold division surfaces. Thereafter, in a third molding step and a fourth molding step, a mold cavity volume of the rotary mold part side and the common mold side is expanded without using a coated-film forming mold, and a coating agent is injected from a coating-agent injector into each expanded mold cavity. Then, each mold cavity volume is reduced, so that a coated film is formed on the both surfaces of a design surface and a non-design surface of a laminate molded product. |
