| 摘要 |
PROBLEM TO BE SOLVED: To provide a container bag of a large capacity, which can be used a plurality of times, and in addition, is self-standable, and can be compactly folded. SOLUTION: This container bag is equipped with a bag main body 2, a bar-shape first core material 3, and a bar-shape second core material 4. In this case, the bag main body 2 is constituted in such a manner that the upper surface is opened, and the bottom surface and the side surfaces are made of a flexible film body, and has a large approximate parallelepiped shape. The first core material 3 is integrally provided on the upper four edges UF, UB, UL and UR of the bag main body 2, and is bendable. The second core material 4 is integrally provided on the vertical four edges V of the bag main body 2, and has a strength required for the self-standing of the bag main body 2.
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