Inner bag for transport tank and loading method thereof

摘要: A positioning mark (45) and a display (46) are formed in an inner bag body. An supply-discharge opening (22) is inserted into tank opening (15) as the conforms to central line extending in the longitudinal direction of the bending line in one end portion that close supply-discharge opening set above mark. Sine folding line is away from opening, end portion not filled with liquid in early stages filling, so damage filling failure can be eliminated.