DOUBLE CAP WITH SEALING FUNCTION

摘要

The present invention relates to a cap for packaging a viscous product such as sauce and a liquefied product such as soy sauce and vinegar, and more particularly, to a one-touch cap with sealing function in which an inner cap and an outer cap separately formed are coupled integrally. The double cap with sealing function according to the present invention is characterized to contain an inner cap for performing sealing function at the entrance of bottleneck of a vessel; and an outer cap provided with a space part provided at an inside top surface of the outer cap in consideration of the thickness and the diameter of the inner cap so as to fasten the inner cap thereto and an inner cap holding structure for preventing the inner cap fastened to the space part from falling out. The double cap with sealing function according to the present invention has an effect that since the inner cap is fastened to an inside of the outer cap, productivity is increased as manufacturing process is reduced from two steps in the conventional case to one step in packaging a viscous product such as a sauce. Also, since a customer can open and close the inner cap simultaneously with opening and closing of the outer cap, there is an effect that an operation is convenient and easy and a superior sealing function can be obtained.