| 摘要 |
PROBLEM TO BE SOLVED: To prevent contents in a container from deteriorating or becoming polluted by a method wherein an inner stopper arranged at the inside of a cap main body is made easily removable in case of necessity so that liquid or the like coming into a space between the cap main body and the inner stopper can be taken away easily. SOLUTION: A holding means 6 of the inner stopper 4 is detachably engaged with a support means 5 of the cap main body 3, and a tab means 7 is provided at the inner stopper 4. |
