Ophthalmic solution container

Abstract

A self-standing packaging container capable of achieving both strength and disposability even if the container has a wide mouth is provided. A container according to the present invention includes: a container body that has an opening part at an upper end of a tubular member; an annular member that is bonded to the upper end of the tubular member; and a lid member that seals the opening part to be openable and closable. The container body has a bottom surface member that is bonded to the tubular member at a bottom surface part of the tubular member. The tubular member is constituted by a flexible laminated body of three or more layers including a barrier layer and a resin layer. The lid member is coupled to the annular member by any of a hinge, fitting, and a screw to be openable and closable.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Priority is claimed on Japanese Patent Application No. 2019-123825, filed Jul. 2, 2019, the content of which is incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to a self-standing container.BACKGROUND OF THE INVENTION[0003]Patent Literature 1 (Japanese Unexamined Patent Application, First Publication No. 2015-20787) describes a pouch container obtained by forming annular body side end joints bent inward at upper and lower ends of a body member, respectively, bonding outer circumferential parts of upper and lower closing members to the upper and lower body side end joint, respectively, and closing the upper and lower ends of the body member with the upper and lower closing members.SUMMARY OF THE INVENTIONProblems to be Solved[0004]The pouch container described in Patent Literature 1 can have excellent self-standing stability and shape retention, excellent design, volume reduction, and sufficiently-...

AI Technical Summary

Benefits of technology

[0015]According to the present invention, since an annular member is bonded between a flexible tubular member and a lid member and a container is constituted to open and close between the lid member and the annular member, it is possible to achieve both strength and disposability even if the container has a wide mouth.

Problems solved by technology

However, utilization of such a container, in particular for contents having low fluidity such as creams and solids, has been difficult.

Also, although flexible packaging containers mainly formed of laminated films are lightweight and have excellent disposability, the loading efficiency of the containers filled with the contents is poor and the container strength such as drop strength or bag breaking strength is low.

Furthermore, although containers such as paper cartons and brick pack (registered trademark) which are often seen today have a stable shape and excellent loading efficiency and are lightweight, since the strength of the container, particularly the interlayer strength of a base material used for a paper container is inferior, there is a problem that the container is vulnerable to impacts such as dropping, depending on the shape of the container.

In addition, paper containers are inferior in piercing resistance and the appearance design such as the gloss may be inferior to that of film containers.

Meanwhile, molded containers such as blow bottles, aluminum cans, and the like have high strength, but are bulky when discarded.

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