| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap made of a plastic which can form a sealing structure with a sealing reliability, and at the same time, can be easily unsealed without using a special utensil at the time of unsealing, and in addition, to which a tamper evident property is imparted as well. SOLUTION: A cap main body 1 and a ring-form member 2 are integrally formed of different kinds of resins respectively, and on the internal surface side of a skirt part of the cap main body, a protruding part 5 which is engaged with the outer peripheral part of a container mouth part, is formed. On the skirt part 4 of the cap main body, a plurality of notches 7 which extend from the lower end in the axial direction at least exceeding the protruding part, are provided in the circumferential direction with intervals, and the skirt part of the cap main body, and the ring-form member are bonded with peelable bonding surfaces on the back surface side corresponding with the protruding part, extending at least to 80 almost total part of the circumference, and the cap main body can be removed from the container mouth part after removing at least one part of the ring-form member. |
