JPS5842268Y2 - packaging bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved packaging bag in which a drinking spout can be easily formed and is particularly suitable as a packaging bag for beverages.

When drinking liquid beverages such as soft drinks and juices that have been packed in self-supporting packaging bags or columnar packaging bags that have been conventionally provided to the public, it is necessary to transfer them to another container after opening, or to use accessories such as straws. I had to drink it.

This had drawbacks such as it being difficult to drink directly from the flexible packaging bag and spilling and staining clothes, but as a result of various experimental studies, the inventor of this invention has developed a book that does not have these drawbacks. I got an idea.

Hereinafter, a specific example of the present invention will be explained with reference to the drawings. The packaging body 1 is made into a bag by a normal bag making method, and the packaging body 1 is attached to one or both of the opposing bodies 2 and 3.
A protrusion 5 that is perpendicular or approximately perpendicular to the opening 4 at the upper end and protrudes outward is provided downward from the opening 4, and the material constituting the body parts 2 and 3 has a thickness on the inner surface. 30~
Aluminum foil with a thickness of about 5 to 100 μ laminated with a heat-adhesive synthetic resin film 6 such as polyethylene film or polypropylene film with a thickness of about 300 μ, gold-layer foil such as stainless steel, board paper, kraft paper, roll paper,
It is made of a bendable shape-retaining film 7 made of a paper material such as high-quality paper with a basis weight of about 50 to 5 oog/m2, a synthetic resin film such as styrene, polyvinyl chloride, bocker carbonate, etc. with a thickness of about 10 to 100 μ. , if necessary, a protective film 8 made of a suitable synthetic resin film having light-shielding properties, gas-barrier properties, and water vapor-blocking properties is laminated on the outer surface,
Lamination of these films 6.7.8 is carried out by any known suitable lamination adhesive means.

In the figure, reference numeral 9 denotes a bottom film, which widens the bottom 10 of the main body 1 to provide independence, and the protrusion 5 extends partially or over the entire length of the body 2, 3, preferably at approximately the center. 11 is a thermally bonded part formed during bag manufacturing, and the protrusions 5 formed on either or both of the body parts 2 and 3 are formed by the pressing force during laminated packaging or the filled liquid. It does not disappear due to the shape-retaining force of the bending shape-retaining film 7 due to the pressing force of the contents.

In the present invention, a liquid content or a water-soluble powder such as powdered juice is filled, and the opening 4 is sealed by thermal bonding, and then the thermal bonding sealing portion of the opening 4 is cut and removed to open the opening.
When both sides of the opening are pressed inward, either one or both of the body parts 2 and 3 is moved by the protrusion 5 that protrudes outward from either or both of the body parts 2 and 3.
Open in a chevron shape with the apex to form a drinking spout, and drink the contents from this spout, or add an appropriate amount of water,
The powder inside is dissolved and drunk from the spout.

In addition, the present invention is to form a protrusion 5 on one or both of the body parts 2 and 3 of the material before bag making (thereby, the packaging bag can form a drinking spout after opening). The protrusions 5 formed at the bottom and the opening are eliminated by heating and pressing with a heat bonding blade during thermal bonding, and no leakage of the contents from the heat bonded portion of the protrusions 5 occurs. It doesn't happen.

[Brief explanation of the drawing]

Figure 1 is a plan view, Figures 2 and 3 are line A-A in Figure 1,
4 is an enlarged partial sectional view of the body of another specific example, FIG. 5 is a plan view of another specific example, FIG. 6 is a partially enlarged sectional view of FIG. 5, Figure 7 is a sectional view of another specific example;
The figure is a perspective view of the container opened to form a drinking spout. 1... Main body, 2, 3... Torso, 4.
...Opening, 5...Protrusion.

Claims (1)

[Scope of utility model registration request] On one or both of the body parts 2 and 3 that constitute the housing body 1 and facing each other, a protrusion 5 that is perpendicular or substantially perpendicular to the opening 4 at the upper end of the housing body 1 and protrudes outward is provided at the opening 4.
A packaging bag provided below.