| 摘要 |
PROBLEM TO BE SOLVED: To provide a pillow-type packaging bag which can be easily re-sealed only by folding an opening part after the packaging bag is unsealed, and the content is taken out. SOLUTION: In the packaging bag comprising a laminate body having a base layer and a thermally adhesive resin layer and formed of a hot-glued butt-seam and a hot-glued edge. An end of the butt-seam forming an upper side when the hot-glued butt-seam is folded so as to be in contact with an outer surface of the packaging bag is extended outward by a predetermined size to form a butt-seam extension, and a back side adhesive layer is formed on an outer surface of the laminate constituting a back side of the packaging bag facing the butt-seam extension. The packaging bag can be re-sealed by folding the opening part in which a front adhesive layer is formed on the outer surface of the laminate constituting a front side of the packaging bag facing the back side adhesive layer. COPYRIGHT: (C)2003,JPO
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