| 摘要 |
An envelope type inner bag body is produced by welding both ends of a tubular film. A supply-discharge opening is welded at a position apart from one end portion of the inner bag body by a distance about IW/2 to form an inner bag for a transport tank, which is loaded in a cylindrical tank body. When length of the inner bag body is IL, width thereof is IW, inner peripheral length of the transport tank in a longitudinal cross-sectional surface in a longitudinal direction is TLt, and inner peripheral length of the transport tank in a longitudinal cross-sectional surface in a width direction is TLr, IL and IW satisfy the conditions: 0.47.TLt<=IL<=0.6.TLt, and 0.47.TLr<=IW<=0.6.TLr. The envelope type inner bag will be appropriate in size with respect to the transport tank, eliminating the filling failure of the liquid and the breakage of the inner bag.
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