Spout structure and the method of forming a fluid storage bag body

    公开(公告)号:JP4515866B2

    公开(公告)日:2010-08-04

    申请号:JP2004264252

    申请日:2004-09-10

    Inventor: 崇 進藤

    Abstract: PROBLEM TO BE SOLVED: To hold an opening passage of a spout in a cubic form by use of a raw material at the spout of a bag. SOLUTION: A tensioned supporting film is axially held between two spout films constituting a spout of a bag having its circumferential edges sealingly closed, the two spout films are flexed outwardly to form a hollow part between it and the tensioned supporting film and integrally melt right and left edges of the two spout films and the tensioned supporting film. When tips of the spouts are cut away, an opening passage is held between the spout film and the tensioned supporting film. When this spout is formed, the tensioned supporting film is present axially between the spout films, and the spout films are sucked to form deflection between the films and the tensioned supporting film and then the edges of the two spout films and the tensioned supporting film are melted and adhered to each other. COPYRIGHT: (C)2006,JPO&NCIPI

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