| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fluid-containing extraction container through the extraction port of which fluid contents of ink etc. can smoothly outflow, and its fitting structure.SOLUTION: A fluid-containing extraction container comprises a main body which houses fluid contents, and an extraction port 121 provided at the front sheet part 131 of the main body, and the fluid contents are sucked and extracted while the main body deforms with volume reduction. A rear sheet part 141 provides a valley-folding part 147 which folds upon volume reduction due to suction, and is partitioned into a first area 148 and a second area 149 by the valley-folding part 147. Upon extraction, the rear sheet part 141 is folded from the valley-folding part so that the second area 149 approaches the first area 148, and, on the other hand, the front sheet part 131 and a width sheet part 151 approach each other without being folded substantially, resulting in volume reduction.</p> |
