| 摘要 |
PURPOSE: A corrugated part forming method of a container neck in manufacturing containers by injection blow molding is provided to easily mold a corrugated part at the lower part of a neck and improve the operation of the corrugated part. CONSTITUTION: A corrugated part forming method including an annular rim(101), a neck part(102) formed at the upper part of the annular rim to be coupled with a cover and a body part(103) at the lower part of the neck part includes a foldable thin part(104) formed by extending the lower part of the neck by injection blow molding.
|
