| 摘要 |
A dual sealing structure for a container is provided to improve a configuration of a neck of the container and a cap, connected to the neck, so as to achieve an easy opening or closure, and an excellent sealing performance, and to allow a higher closing force by adhering a lateral wall and an inner close adhesion portion of the cap against an outer and an inner circumferential surface of the container closely at the same time. A dual sealing structure for a container comprises: a container body(2), having a neck(20), through which a content is injected, and on an outer circumferential surface of which a male connection is formed; and a cap body(4), on the inner circumferential surface of which a female connection is formed; wherein an inner close-adhesion portion(44) is projected from the inside of the cap body in a downward direction so as to be adhered to the inner circumferential surface of the neck closely, and a groove(46) is arranged inside the inner close-adhesion portion. Additionally, the dual sealing surface is designed also as a threaded type, a lug-bead type, a PT-bead type, pressed-in type connection.
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