| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a container made of a synthetic resin, capable of being collapsed to a small size when the container is to be disposed of after contents are used. SOLUTION: This packaging container is formed by providing cross- sectionally V-shaped deep grooves 5 for folding in circumferential walls of a container made of a synthetic resin and also providing a deep groove 6 continuous to the deep grooves 5 in a bottom wall 1 thereof. With this arrangement, the circumferential walls are folded along the deep grooves, and the container can be flately collapsed. That is, the container can be folded along each groove in the circumferential walls and the bottom wall irrespective of the container having rigidity.</p> |
