| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a ring is required to be removed from a PET bottle body for the reason of difference in material composition at the time of separate collection in a community according to Resource Recycling Law and a difficult problem arises from its removal because most PET bottles are collected with the rings remaining, although a PET bottle is improved into a currently used PET bottle to enable the bottle to be checked for tampering to avoid a criminal act of injecting a poison into the bottle. <P>SOLUTION: The ring can be removed even by a child or an aged person by providing a notch on one place of the ring of the cap during production process of the PET bottle cap or after production. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
