| 摘要 |
PROBLEM TO BE SOLVED: To provide a pouch having a pump which can be manufactured at a low cost without requiring a special process, and can easily take out a content to the last drop by preventing the internal layers of the bag from joining to each other when the content is taken out, or even when the amount of the content becomes less. SOLUTION: This packaging bag comprises a bag main body and a pump. In this case, the bag main body is formed by heat-sealing a plastic film. The pump is fixed to the opening section of the bag main body. In such a packaging bag, a tunnel-form swelling section communicating the opening section with a bottom section is provided on the bag main body. |
