PROBLEM TO BE SOLVED: To provide a flexible container bag capable of discharging a filling material in a bag body to the outside of the bag easily in a short time without making clothing of an operator dirty, and without damaging a bottom surface sheet when reversing the bag.SOLUTION: A flexible container bag includes: a bag body 14 which has a body part 12 comprising a side surface sheet 11 and a bottom surface sheet 13 and which is filled with a filling material A; two-suspension part type two suspending belts 15 which are supported at four points by lower end parts 15a being sewn to four points of the outer peripheral part of the bottom surface sheet 13 respectively; two bottom part reinforcement belts 16 in which intermediate parts 16b are crossed on a surface of a portion where each lower end part 15a of the bottom surface sheet 13 is sewn, and each end part 16a is sewn integrally with each lower end part 15a via the bottom surface sheet 13; and a suspension member 17 for reversing in which a lower part ring 17a is connected to each crossing portion 16b, and which reverses the bag body 14 by raising the bottom surface sheet 13 via each bottom part reinforcement belts 16.SELECTED DRAWING: Figure 1
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