MANUFACTURING METHOD FOR DOUBLE-SIDE IN-MOLD MOLDED ARTICLE, AND MOLD STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for a double-side in-mold molded article capable of simplifying a production process to suppress production cost. SOLUTION: The double-side in-mold molded article is manufactured by repeating the following stage. A resin is passed through the hole 7a of the (n-1)-th region of a first continuous film 7 opened in a preceding process by closing a fixed mold and a movable mold to be injected in the gap between the first continuous film 7 and a second continuous film 14 from an injection port. Holes 7a and 14a are opened in the first continuous film 7 and the n-th region of the second continuous film by perforating projections. The fixed mold and the movable mold are opened to move the first and second continuous films 7 and 14 so as to provide a difference between the feed distances of both films. The first and second continuous films 7 and 14 are positioned so that the hole 7a of the n-th region of the first continuous film 7 coincides with the injection port, and the hole 14a of the n-th region of the second continuous film 14 is shifted from the cavity of the molds. The holes 7a and 14a are opened in the first continuous film 7 and the (n+1)-th region of the second continuous film 14 by perforating projections.