| 摘要 |
PROBLEM TO BE SOLVED: To cover a side of an oxygen absorbent storage on the inside of a container with a film that provides breathability via a part of it without water leakage from the storage side, instead of covering the side with a porous film throughout. SOLUTION: A side of a storage 5 on the inside of a container is covered with a waterproof film with a through-hole and the through-hole is covered with a porous film 8. |
