| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag composed of a synthetic resin-made foam sheet which can secure dimensional accuracy when providing a fastener in an opening. SOLUTION: The packaging bag includes a bag body 10 having an opening 11 and a fastener 12 for opening and closing the opening 11. The bag body 10 is constituted of a synthetic resin-made foam sheet 100 in which at least an uneven sheet 101 and flat sheets 102 and 103 are joined with each other, and a large number of foams 104 with gas sealed therein are formed. The fastener 12 is joined with the opening 11 with an adhesive. A hot-melt adhesive can be favorably used for the adhesive. COPYRIGHT: (C)2010,JPO&INPIT
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