| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner bag for back-in box having a handle in which either loading or unloading of the inner bag to or out of an outer box or transferring of the inner bag itself can be performed quite easily without requiring any special implement. SOLUTION: A film laminated member formed by holding two folded sheets between a set of planar sheets in such a way that the folded portions are placed inside is heat sealed along a predetermined contour to manufacture a bag composed of the sheet surfaces more than three planes. In this case, a part of the heat sealed portion between the planar sheet and the folded sheet is extended toward an outside of the bag to form a predetermined shape and a hole is formed inside the shape, resulting in that a handle part is formed. |
