Title:
PACKAGING CONTAINER
Document Type and Number:
Japanese Patent JP2017074951
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a double container which is mainly formed of paper, has an openable/closable bung hole, has high barrier in the vicinity of the bung hole and has less variations in the content even if the content is stored for a long period.SOLUTION: A packaging container includes: a first barrel; a second barrel which is inserted to the first barrel; a bottom which seals the lower side opening end of the second barrel; and a mouth part which is arranged on the outer side of the vicinity of the upper side opening end of the second barrel and can be closed and opened with a cap. In the packaging container, a bottom side inner curl is formed by bending the opening end on the bottom of the first barrel to the inner side, a bottom side outer curl is formed by bending the opening end on the bottom side of the second barrel to the outer side, the bottom is attached to the whole circumference of the bottom side outer curl and the peripheral edges of other surfaces are attached to the bottom side inner curl, the mouth part is welded to the outer side of the upper side opening end of the second barrel, an upper side inner curl is formed by bending the upper side opening end of the first barrel to the inner side, and the upper side inner curl is welded to the flange of the mouth part.SELECTED DRAWING: Figure 1
Inventors:
FUJIWARA TAKASHI
Application Number:
JP2015201997A
Publication Date:
April 20, 2017
Filing Date:
October 13, 2015
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D3/22