To provide a method for injection-molding a laminated molding which does not generate defective molding even when the damage of an inserted skin layer is prevented by reducing an injection pressure and can obtain the quality laminated molding inexpensively.
The laminated molding comprising the skin layer (S), a foam layer (H), and a main body (B) is molded by using a fixed mold (1) and a movable mold (2). The main body (B) and the skin layer (S) of the recessed part (12) of the movable mold (2) are inserted into the core (2) of the fixed mold (1), and a mold is closed. Next, a foaming molten resin low in viscosity in which a physical blowing agent such as supercritical liquid carbon dioxide is dissolved is injected into a cavity (Ch) formed between the skin layer (S) and the main body (B) and expanded to obtain the laminated molding (W) in which the skin layer (S), the foam layer (H) and the main body (B) are laminated.
TSUDA BUNRO
YOKOYAMA KAZUHISA
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