| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an improved plastic container which adjusts vacuum pressure produced by hot pack filling, and has a smooth glass-like appearance to imitate the appearance of a glass container with a side wall without a substantial structure. <P>SOLUTION: The plastic container 10 includes a bottom part 20 adapted to vacuum pressure absorption. The bottom part 20 includes: a contact ring 34 on the surface of which the container rests; a standing wall; and a central portion. The standing wall is adjacent to the contact ring 34, almost surrounding the contact ring 34. The central portion is partially formed with a central raised bottom part 40 and an inverted ring 42 which almost surrounds the central raised bottom part 40. The central raised bottom part 40 and the inverted ring 42 are movable to adjust vacuum force produced in the container. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
