| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a PET bottle from which a PP ring can be easily separated although the PP ring is attached to the PET bottle so as not to be easily detached because the PP ring and a PP cap which are integrated before opening are separated when opening the PET bottle, thereby needing to prepare a tool such as scissors to remove the PP ring, or a user gives up to remove the PP ring and throws the PET bottle away without classify it. <P>SOLUTION: A portion fitted with the PP ring 2 of the PET bottle 3 has a spiral groove which is a reverse screw. When the PP cap 1 is turned, a force is applied to the PP ring in a direction of sticking closely to the PET bottle 3 by the action of the reverse screw. The PP ring 2 is thereby separated from the PP cap 1, and the PP ring left on the PET bottle 3 can be easily separated from the PET bottle 3 by turning the PP ring 2 by a hand. <P>COPYRIGHT: (C)2012,JPO&INPIT |
