MANUFACTURING METHOD OF HEAD-CLOSING FILM OF TUBULAR CONTAINER, AND HEAD CLOSING FILM

摘要

PROBLEM TO BE SOLVED: To provide a head-closing film manufacturing method for preventing occurrence of unevenness in the wall thickness of a head-closing film. SOLUTION: The head-closing film manufacturing method of a tubular container includes a preliminary forming step of forming a preliminarily formed body, and a closing film forming step of manufacturing the head-closing film by further drawing the preliminarily formed body. COPYRIGHT: (C)2007,JPO&INPIT