| 摘要 |
PROBLEM TO BE SOLVED: To prevent foreign matters from being injected by a syringe or the like, to improve workability in sealing a cap and improve sealability, and to facilitate opening of the cap. SOLUTION: The synthetic resin cap includes a cap body 2 to be fitted over a bottle mouth 11 and a cylindrical hood 3 integrally formed at a lower end of the cap body. An engaging protrusion 32 to be engaged with a flange 13 on an outer peripheral surface of the bottle mouth 11 is provided on an inner peripheral surface of the hood 3. In addition, cuts 24 formed around a circumferential direction of the cap body 2 are provided to be located above the protrusion 32. A cutting guide 27 formed to couple the hood 3 with the cuts 24 is provided. |
