| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag configured to prevent a temporary bonded part for partitioning the inside of the bag from being separated due to impact during transportation by adjusting fusion strength of a weak-fusion part where stress concentrates in addition to using a deformed seal bar, and to separate the temporary bonded part by a consumer applying pressure to the packaging bag before use, thereby enabling easy mixture or immersion.SOLUTION: A packaging bag includes a partitioning seal part for partitioning a space of a bag formed by fusing the periphery of films for sealing, into a plurality of parts. On an outer peripheral seal part, a resin layer of material having affinity with a fusion resin layer of a film constituting the bag is used. A part of the partitioning seal is opened. In the opening part, a resin layer having no affinity with the fusion resin is provided. |
