公开(公告)号：US10308402B2

公开(公告)日：2019-06-04

申请号：US15328988

申请日：2015-07-30

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Kiyoshi Wada ,  Takekuni Seki ,  Nobukazu Fujiwara

IPC: B65D5/74 ,  B65D41/04 ,  B65D47/10 ,  B65D51/20 ,  B65D47/12

Abstract: Provided are a spout stopper that prevents a decrease in sealing performance to a cap without deterioration of liquid-shutting-off performance of a stopper body, and a packaging container using the spout stopper. The spout stopper includes: a stopper body including a cylindrical side wall; and a cap to be mounted from an upper end side that is one end of the side wall. A projection is formed at an upper end edge of the side wall so as to project outward from the side wall, and a top surface at an upper end of the side wall is in surface contact with a predetermined contact surface inside a cap over an entire circumference thereof in a state where the cap is mounted on the side wall.