JP4762565B2 - Packaging bag - Google Patents

Description

  The present invention relates to a packaging bag provided with means for facilitating opening.

There are various conventional means for facilitating the opening of the packaging bag. For example, it is formed on a weak line such as a perforation as disclosed in the following Patent Document 1 or on the outer edge of the packaging bag. Notches such as triangular notches are known.
Registered Utility Model No. 2566444

  However, the packaging bag having the conventional opening means as described above has a problem that it can be easily opened only by a simple operation of pinching and tearing the outer edge of the packaging bag. That is, since the conventional packaging bag is too easy to open, for example, it is conceivable that an infant opens the packaging bag in a place where there is no guardian and takes out the packaged item. May not be preferred.

  Then, an object of this invention is to provide the packaging bag which has the contradicting characteristic of opening ease and unopening ease.

In order to achieve the above-described object, the present invention provides a housing portion that accommodates an article to be packaged, a tear guide wire for opening, a packaging film composed of a plurality of layers having an aluminum layer, and a tear guide wire. In a packaging bag comprising intersecting bending guide lines , the tear guide line is formed in the housing portion, and is formed by penetrating at least one of the plurality of layers and not penetrating at least one other layer. The end of the tear guide wire is formed at a position away from the outer edge of the packaging bag. According to the present invention, a tear guide line for facilitating opening is not disposed on the outer edge of the packaging bag, so that a considerable amount of force is required to tear the outer edge of the packaging bag as it is. On the other hand, the packaging bag can be easily opened by pinching and tearing a desired portion in the vicinity of the tear guide line.

In the present invention, a bending guide line that intersects the tear guide line may be formed. Folding the part where the tear guide line is formed along the folding guide line, and placing a part of the tear guide line on the fold line, the packaging bag can be easily removed from that point. It becomes possible to tear.

In the present invention, the tear guide lines are formed at least at two locations among the upper end, the lower end, the left end, and the right end of the accommodating portion, and are formed so that the ends of the respective tear guide lines are connected. Is preferred. Further, the tearing guide line may be a broken line. Moreover, the tear guide wire may be formed by providing a plurality of C-shaped cut portions, and the C-shaped cut portions are formed by a two-stage cut including two C-shaped cut portions. May be.

  As described above, according to the packaging bag of the present invention, it is possible to prevent or suppress a situation in which, for example, an infant easily takes out a packaged item requiring attention for use.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view partially showing a packaging bag 10 according to the present invention. As shown in FIG. 1, the packaging bag 10 which concerns on this embodiment is comprised from the packaging films 10a and 10b mutually opposingly arranged. The packaging films 10a and 10b are composed of a composite film having two or more layers. Examples of the material constituting the composite film include paper, silicon-processed paper, aluminum, polyethylene terephthalate (PET), and polyethylene (PE). It is done.

  FIG. 2 is a sectional view taken along the line I-I 'of FIG. As shown in FIG. 2, the composite films 10a and 10b used in this embodiment are formed by laminating a PET layer 11a, a PE layer 11b, an aluminum layer 11c, and a PE layer 11d in order from the outside. The PET layer 11a has low oxygen permeability, and the aluminum layer 11c is excellent in air tightness and has appropriate strength or rigidity. Therefore, in this embodiment, a patch or the like for transdermally administering a drug is suitable as the packaged object 20 stored in the storage unit 12. This is because the deterioration of the drug can be prevented and the shape of the patch can be maintained.

  The packaging films 10a and 10b formed in this manner are overlapped with each other so that the PET layer 11a is the outermost layer, and then the outer peripheral portion is sealed, whereby the packaging bag 10 including the accommodating portion 12 and the seal portion 14 is provided. Is formed. As a sealing method, a heat sealing method is preferable, but other methods such as pressure bonding using an adhesive may be adopted.

  The seal part 14 is formed by integrating the two packaging films 10a and 10b, and the strength or rigidity of the seal part 14 is reduced by deformation of the material due to heat at the time of sealing or addition of an adhesive. It becomes larger than that of the accommodating portion 12. Therefore, considerable force is required to tear the outer edge of the seal portion 14, that is, the outer edge of the packaging bag 10 as it is.

  Returning to FIG. 1, a tear guide wire 16 is formed on the housing portion 12 of the packaging bag 10 of the present invention, which weakens the strength or rigidity of the housing portion 12 and allows the packaging bag 10 to be easily opened. Yes. In the present embodiment, as a method of forming the tear guide line 16, a broken line that penetrates at least one of the outer layers of the plurality of layers constituting the packaging films 10a and 10b is formed, and at least one of the inner layers is formed. A method that does not form a broken line is adopted. Therefore, unless the packaging bag 10 is opened, the packaged object 20 is not in direct contact with the outside air, and can be safely stored until the packaged object 20 is opened. Of course, when it does not matter if it may come into contact with the outside air depending on the type of the object to be packaged 20 or when a wrapping bag is further provided in the packaging bag 10, this is not the only case, and the sewing machine that penetrates the entire housing portion 12. An eye or the like may be formed.

  The end of the tear guide wire 16 is formed at a position that does not cover the outer edge of the packaging bag 10. Since the conventional packaging bag was formed with the tear guide line extending to the outer edge of the packaging bag, it was simply opened by simply pinching the outer edge near the tear guide line with a finger. . Thus, when the packaging bag 10 has only the ease of opening, for example, the infant opens the packaging bag in a place where there is no guardian, or the opened packaged object 20 comes into direct contact with air and the quality of the product. May be inferior. Here, in this embodiment, the end part of the tear guide wire 16 is formed at a position (for example, D1 in FIG. 1) that is separated to some extent from the outer edge of the packaging bag 10 so that the packaging bag 10 has a non-opening ease. Thus, the situation as described above is prevented or suppressed.

  In the present embodiment, as shown in FIG. 1, a bending guide line 18 that intersects the tear guide line 16 in a substantially cross direction is formed. As will be described in detail later, when opening the packaging bag 10, the container 12 is folded along the folding guide line 18, and then both sides of the portion where the tear guide line 16 and the folding guide line 18 intersect are formed. It will be torn with a finger. At this time, the folding guide line 18 intersects the tear guide line 16 at a distance from the end of the tear guide line 16 (for example, D2 in FIG. 1) so that the packaging bag 10 is easily torn. It is desirable to form. More specifically, if there is a distance of 10 mm or more from the end of the tear guide wire 16, the tear guide becomes easy.

  Next, a method for opening the packaging bag 10 configured as described above will be described with reference to FIG. FIG. 3 is a diagram for explaining a method of opening the packaging bag 10 according to the present embodiment.

  First, in the state shown in FIG. 1, since the outer edge of the packaging bag 10 is not provided with means for easy opening, even a user having a normal force only tears the outer edge of the packaging bag 10. Opening with is extremely difficult. Accordingly, it is substantially impossible for a powerless infant who does not know the opening method to open the packaging bag 10 of this embodiment, and further, the packaged object 20 cannot be taken out.

  In order to perform opening, first, the accommodating part 12 is bent along the bending guide line 18 (see FIG. 1). When the folding is performed firmly, the packaging bag 10 is maintained in the folded state shown in FIG. 3A by the aluminum layer constituting the packaging films 10a and 10b. In this state, a part of the tear guide wire 16 that intersects the bending guide wire 18 appears at the outer edge of the packaging bag 10 as a notch.

  Therefore, if both sides A and B of the notch described above are pinched with fingers and separated from each other, even if the force is small, the packaging bag 10 is torn starting from the notch, and opening is easily performed ( (See (b) of FIG. 3).

  Next, the further form for implementing this invention is demonstrated, referring FIGS. 4-6. 4-6 is explanatory drawing which shows generally the packaging bag 10 in which the tear guide wire 16 and the bending guide wire 18 were formed. In FIGS. 4 to 6, as a method of forming the tearing guide line 16, a C-shaped cut is performed. When performing such a U-shaped cut, as shown in FIG. 4 and FIG. 5, it may be a one-stage cut, or as shown in FIG. Good.

  4 to 6, the tear guide wire 16 is formed in at least one of the four ends of the upper end, the lower end, the left end, and the right end of the packaging bag 10. When forming a plurality of tear guide lines, the ends of the two tear guide lines may be connected at a right angle as shown in FIG. 4, or may intersect as shown in FIG. Or you may make it connect smoothly like FIG.

  Further, as shown in FIG. 5, the tear guide wire 16 is formed across the housing portion 12 and the seal portion 14 as long as the tear guide wire 16 does not have the effect of easily tearing the outer edge of the packaging bag 10. It does not matter.

  As shown in FIGS. 4 and 6, the bending guide line 18 that intersects the tear guide line 16 is formed in at least one place. However, as shown in FIG. 5, the two tear guide lines 16 intersect. In this case, the bending guide wire 18 need not be formed. This is because one tear guide line serves as a bending guide line with respect to another tear guide line.

  As mentioned above, although preferred embodiment of this invention was described, it cannot be overemphasized that this invention is not limited to the said embodiment.

  For example, the material constituting the packaging bag 10 is not limited to the above, and can be appropriately changed depending on the type of the packaged object 20 and the like. Furthermore, the positions, shapes, dimensions, and quantities of the tear guide wires 16 and the bending guide wires 18 can be changed as appropriate depending on the type of the packaged object 20 and the like.

It is explanatory drawing which shows partially the packaging bag 10 by this invention. It is sectional drawing which shows partially the packaging bag 10 by this invention. It is explanatory drawing which shows the procedure which opens the packaging bag 10 by this invention. It is explanatory drawing which shows the packaging bag 10 by this invention generally. It is explanatory drawing which shows the packaging bag 10 by this invention generally. It is explanatory drawing which shows the packaging bag 10 by this invention generally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Packaging bag, 10a, 10b ... Packaging film, 11a ... PET layer, 11b ... PE layer, 11c ... Aluminum layer, 11d ... PE layer, 12 ... Housing part, 14 ... Seal part, 16 ... Tear induction wire, 18 ... Folding guide wire, 20 ... packaged item.

Claims (5)

An accommodating portion for accommodating an article to be packaged, a tear guide wire for opening, a packaging film composed of a plurality of layers having an aluminum layer, and a folding guide wire intersecting with the tear guide wire;
In a packaging bag comprising:
The tear guide wire is formed in the accommodating portion, and is formed by penetrating at least one of the plurality of layers and not penetrating at least one other layer,
An end portion of the tear guide wire is formed at a position away from an outer edge of the packaging bag. The tearing guide line is formed in at least two places among an upper end, a lower end, a left end, and a right end of the housing portion, and is formed so that ends of the tearing guide lines are connected to each other. The packaging bag according to 1. The packaging bag according to claim 1, wherein the tear guide line is a broken line. The packaging bag according to claim 1 or 2, wherein the tear guide wire is formed by providing a plurality of C-shaped cut portions. The packaging bag according to claim 4, wherein the U-shaped cut portion is formed by a two-stage cut including two C-shaped cut portions.

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