Ventilation membrane integral molding method

摘要

PROBLEM TO BE SOLVED: To provide a method for integrally molding a breathable membrane capable of manufacturing a molded product in which the liquidtightness of the breathable membrane is ensured while integrally molding the breathable membrane into a member. SOLUTION: The ventilation film integral molding method is a ventilation film integral molding method in which a ventilation film is integrally molded with a member to produce a molded product, and a mounting step of mounting the ventilation film 131 on a first mold 201. And, in the first mold on which the ventilation film is placed, a through hole forming portion 204 for forming a through hole for exposing the ventilation film to the outside is provided by a spring member 205 so as to be able to advance and retreat from the main body portion. A second mold arrangement step in which the mold 202 is arranged and the ventilation film is pressed against the through hole forming portion with a load smaller than the load for pressing the first mold, which is applied to the second mold. A molding step of pouring a material of a molded product into a hollow space formed between a first mold and a second mold and solidifying the molded product to form the molded product is included. [Selection diagram] Fig. 3