| 摘要 |
PROBLEM TO BE SOLVED: To allow an internal substance to be easily discharged to the end wherever on an outer container pressure is applied by combining the restorable soft outer container with a flexible inner container. SOLUTION: The container comprises a restorable outer container 1 and a flexible inner container 2 combined, wherein a valve 3 which opens only when a substance in the container is discharged by an external pressure is used, while when the external pressure is canceled, a valve 3 attached to the outer container 1 which opens only at the time of entering is used to permit air between the inner container 2 and the outer container 1. Thus while conventionally contents violently move when the substance in the flexible container is to be discharged, or the container must be squeezed with a small amount of contents left, this container allows almost a full amount of contents to be discharged easily with an external shape rarely varying as the inner container enters the outer container. |
