| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag having sufficient strength while keeping oxygen barrier properties.SOLUTION: A packaging bag 10 has a barrier film 1 containing a polyamide-based resin, an oxygen indicator 4 and a sealant layer 3 in this order. The barrier film 1 has a vapor deposition thin film layer on any one surface thereof. The oxygen indicator 4 has an anchor coat layer 4a and an oxygen indicator layer 4b in order from the barrier film 1 side.SELECTED DRAWING: Figure 1 |
