| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inner bag for a double container which is used by being mounted to the interior of an outer container and can reduce a residual amount of a content.SOLUTION: An inner bag 10 for a double container is mounted to the interior of an outer container 13 having a mouth neck part 14 with a circular cross section, and drains a content while being volume-reduced and deformed. The inner bag 10 for the double container comprises: a circular mouth part 15 having the same outer diameter as the inner diameter of the mouth neck part 14 of the outer container 13; a deformable body part 17 continuous to the circular mouth part 15 and having flexibility; and a bottom part 16 blocked through the deformable body part 17. The deformable body part 17 comprises a cylindrical portion 17a and a flat cylindrical portion 17b which gradually becomes flat toward the bottom part 16. The flat cylindrical portion 17b has a shape in which a cross sectional area of the deformable body part 17 is continuously reduced toward the bottom part 16, engages the circular mouth part 15 to the mouth neck part 14, and is mounted to the interior of the outer container 13 in a state of being suspended.</p> |
