| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible packaging body provided with a gas injection portion, which is improved in sealability of the gas injection portion when exposed to a high temperature.SOLUTION: In the flexible packaging body, in which at least a first side film and a second side film are overlapped each other and the peripheral edge portions thereof are sealed to form a storage portion, one or more gas injection portions, surrounded by sealed regions, that are formed by injection of gas whose specific heat at constant volume at 0°C and at 1 atm is 0.67 kJ/kg.deg or more without being sealed across a predetermined length in a vertical direction are provided at one or both of two side edge portions that are respectively sealed regions, in peripheral edge portions of both side ends of the first side film and the second side film. |
