JPS5842285Y2 - packaging bag - Google Patents

Description

[Detailed description of the invention] This invention forms a small diameter outlet between the upper corner of the packaging body, which is the intended opening part, and the side edge of the packaging body, the inner surface of which is layered with a heat-adhesive resin layer. and then thermally bond the package body to form a compartment heat-bonded part, form a breakage stopper cutout in the compartment heat-bond part, and form a cutout part on the side edge side of the cutout part toward the side edge. The present invention relates to a packaging bag having an opening notch formed at the upper end edge of the punching part, which allows a small diameter outlet to be opened easily and reliably.

Conventionally available packaging bags for liquid packaging and paste packaging have an opening notch such as a V-notch or an I-notch on the side edge heat-bonded part or the opening top edge heat-bonded part to provide opening properties. However, the size and direction of the opening cannot be determined, or the opening is too wide or too small, making it difficult to open properly, or opening in the desired direction. However, as a result of various experimental studies, the present inventor has developed the present invention which does not have these drawbacks.

Specific examples of the present invention are explained below using drawings. Polyethylene film, nylon film, cellophane, paper,
On the inner surface of a single-layer or multi-layer outer film 1 with a thickness of about 10 to 300 μm selected from various materials such as aluminum foil in order to impart desired properties such as heat resistance, air resistance, light shielding properties, and rigidity. Polyethylene, polypropylene, ethylene-
Thermal adhesive resin layer 2, such as vinyl acetate copolymer, has a thickness of 10~
Thermal bonding portions 4 are attached to the necessary peripheral edges using an appropriate bag-making method such as bending the packaging material 3 layered to a thickness of about 200μ such that the inner surface becomes the heat-adhesive resin layer 2 or stacking two layers.
The opening part 6 of the packaging body 5, which has an appropriate form such as a flat bag type, a gusseted bag type, or a self-supporting bag type with a paper bottom, has a space between it and the side edge 7 of the packaging body 5. A small-diameter outlet 8 with a width of approximately 5 to 20 mm is formed in the package body 5 and the thermally bonded compartment 9 is attached, and a circular through hole is formed in the thermally bonded compartment 9.
A break stopper 10 of an appropriate shape such as an elliptical through hole or a U-shaped slit is bored, and a side edge such as a V-shape or ■-shape is formed on the side edge T side of the cutout 10. A package in which a cut-off notch 11 facing the part 7 is placed laterally and diagonally downward, and an opening notch 13 in a V-shape, ■-shape, etc. is formed on the upper edge 12 of the cut-out part 10. It is the body.

In the figure, 14 is an auxiliary opening cut formed as necessary to improve opening properties, 15 is a content filling port, 16 is a scheduled heat-bonded sealing line after filling the content, and 17 is provided to provide self-supporting properties. It is the bottom paper that is glued as needed.

In order to improve the performance of the cutting notch 11 applied to the present invention, it is preferable that the notch 11 be formed continuously with the cutout 10.

Since the present invention is a packaging bag as described above, juice,
Filling port 14 with contents such as milk, liquid beverages such as coffee, liquid seasonings such as soy sauce, sauce, and soup liquid, and pasty seasonings such as mayonnaise, ketchup, and jam.
It is applied by filling the filling port 14 with heat adhesive and sealing it after filling. When opening the filling port 14 for practical use, if the opening notch 13 is used to break downward, the breakage will occur in the cutout 10. When the cutout part 10 reaches the cutout part 10, the concentrated acting force in the tearing direction is dispersed, and the breakage temporarily stops. However, when the cutout notch 11 is used to tear it laterally, the corner of the planned opening part 6 is removed. The corner portion is broken and removed, and the small diameter spout 8 can be opened.

The contents are extruded and discharged through the opened small-diameter outlet 8, or a straw is inserted into the small-diameter outlet 8 to suck the contents.

As described above, in the present invention, a cutout 10 for stopping breakage is bored in the compartment bonded part 9 in which the small-diameter outlet 8 is formed and the packaging body 5 is thermally bonded, and the cutout 10 for stopping breakage is bored on the side edge 7 side of the cutout 10. side edge 7
Since the opening notch 11 is formed facing toward the opening and the opening notch 11 is formed on the upper edge portion 12, the intended opening portion 6 can be easily and reliably formed by utilizing the opening notch 13 and the cutting notch 11. It can be removed to open a small diameter outlet 8, and since the opening operation is a horizontal opening type, it is easy to handle.Furthermore, a cutout 10 for stopping breakage is provided to prevent breakage at unnecessary locations. This allows the small-diameter outlet 8 to be opened reliably.

In addition, in the present invention, the opening is formed as a small-diameter pouring spout 8 by the thermally bonded section 9, so that the contents filled in the packaging bag can be prevented from scattering when the bag is opened, and the bag can be opened beautifully. be.

Furthermore, the present invention has a small-diameter spout 8 due to the addition of the compartment heat-adhesive part 9, and the opening is relatively small, so when a test straw is inserted and sucked, the straw can be removed from the walls of the packaging bag on both sides of the opening. It is useful because it is held in a pinched manner and also serves as a guide to prevent the straw from floating due to the heat-adhesive sections 9.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view, Figs. 2 and 3 are enlarged sectional views taken along line A-A and B-B in Fig. 1, and Fig. 4 is a partially enlarged front view of the open state. 5, 6, and 7 are front views of three other specific examples. 2...Thermoadhesive resin layer, 5...Packaging body, 6...Planned opening portion, 7...Side edge portion, 8...・・Small diameter spout, 9 ・・Division thermal adhesive part, 10 ・・cutting part, 11 ・・cutting notch, 12 ・・・edge part, 13...
Notch for opening.

Claims (1)

[Scope of utility model registration request] A side edge 7 of the packaging body 5 is placed at an upper corner portion, which is a planned opening portion 6, of the packaging body 5, which has a heat-adhesive resin layer 2 layered on its inner surface.
A small-diameter outlet 8 is formed between the package body 5 and the package body 5 is thermally bonded to form a compartment thermally bonded part 9. A cutout part 10 for stopping breakage is formed in the compartment heat bonded part 9. A packaging bag in which a cutting notch 11 facing the side edge 7 is formed on the side edge 7 side of the part 10, and an opening notch 13 is formed in the edge 12 above the cutout part 10.