| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible package having a gas injection part which has non-flexibility to a certain degree, and reduces leakage of gas.SOLUTION: In a flexible package, a storage part is formed by overlapping at least a first side film and a second side film with each other, and sealing peripheral edge parts thereof. One or more gas injection parts, which are surrounded by sealed regions and formed by injecting gas without being sealed across a predetermined length in a vertical direction, are provided at one or both of two side edge parts which are regions sealed respectively at the peripheral edge parts of both side ends of the first side film and the second side film. The diameter of the gas injection part is 3 mm or more and 50 mm or less. The entire gas injection part is clamped from the first side film side and the second side film side, and a repulsive force when the gas injection part is crushed until the clamping width becomes half of the diameter of the gas injection part is 4 N or more and 30 N or less at 23°C and 1 atm.SELECTED DRAWING: Figure 2 |
