To shorten the molding cycle of a multi-layer hollow molding by forming the intermediate layer of a multi-layer bottomed cylindrical preform from a thermoplastic resin composition having an improved heat absorption capacity when the preform is heated and to prevent the deterioration in the smell, taste, hue, etc., of the contents of the hollow molding by ladding an infrared absorbent into the intermediate layer of the hollow molding.
The intermediate layer of the preform for blow-molding the hollow molding is formed from the resin composition containing the infrared absorbent. The multi-layer hollow molding is formed by blow-molding the preform. In a method for producing the hollow molding, the preform, after being heated by an infrared heater, is blow-molded.
HATAHO SUSUMU