SEALING STRUCTURE OF INNER STOPPER-INSERTED CAP WITH IMPROVED SEALING PROPERTY

摘要

PURPOSE: A sealing structure of an inner stopper-inserted cap is provided, to improve the sealing property by employing a dual-structured sealing part, thereby enhancing the storage stability of contents. CONSTITUTION: The sealing structure is such that a cap(1) is connected with a container neck(100) or an opening(101) of a discharge stand, and comprises a cap main body(10) and a sealing inner stopper(20) which is inserted into the cap and maintains the sealing state, wherein a main body sealing face(12) for sealing the external wall part of an opening is formed in the lower internal wall part of the insert part(11) connecting the inner stopper by accommodating a hooking piece of the inner stopper. Preferably a dome-shaped reinforcing face is formed in the inside of the sealing face(22) of the inner stopper.