| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a hollow object that proves to be highly efficient in production and can mold the hollow object integrally, even if having a hollow part. SOLUTION: Thw method for manufacturing the hollow object Y with a hollow part, which is used for a water feeder X, includes: a step of injection molding the hollow object Y by arranging an insert 103 made of a first resin material of a water-soluble or hydrolytic type, inside a mold 100 corresponding with the outer shape of the hollow object Y, and fill the mold 100 with a second resin material of a non-hydrolytic type with hydrophobic properties, and a step of removing the insert 103 located at the hollow part of the injection molded hollow object Y by hydrolysis. COPYRIGHT: (C)2011,JPO&INPIT |
