| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag that makes it possible to easily discharge its contents without bending or wrinkling the introducing portion of the passage of a spout. SOLUTION: The packaging bag having the spout is characterised in that the base material of the introducing portion of the passage of at least the spout is provided with a reinforcement layer. COPYRIGHT: (C)2005,JPO&NCIPI
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