| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of manufacturing readily resin molded items having a fine hollow conduit with uniform cross-sectional configuration. SOLUTION: This method is to form a hollow conduit by fitting a molded item 2 to be a lid in a molded item 1 with a 1 mm or less width, 1 mm or less depth minute conduit provided beforehand on the surface of a plastic resin molded item, wherein a film 3 is inserted in the mold in the direction of the molded item 1 exposed in its minute conduit molded surface for covering the minute conduit and its circumferential part, and thereafter a molded item 2 is subjected to injection molding. In this way, the molded item 1 and the molded item 2 are put together. |
