Patent ID: 11034114

Abstract:
A manufacturing method of a cap (100) includes: supplying a first resin material to a molded product (111A) having a top plate portion (121) and a skirt portion (122) integrally formed on the top plate portion (121) through a corner portion (123); molding the first resin material of the molded product (111A) disposed in a first lower mold (21) into a sliding layer (141) with a first upper mold (22); supplying a second resin material to the sliding layer (141); molding the second resin material of the molded product (111A) disposed in a second lower mold (31) into a sealing layer (142) with a second upper mold (32); taking out a sealing member (112) in the molded product (111A); and inserting the sealing member (112) into another molded product (111A).