JP6268194B2 - Packaging bag - Google Patents

Description

  The present invention relates to a packaging bag, and more particularly to a packaging bag for packaging a sheet-like package such as a patch for transdermal administration of a drug.

  A packaging bag for a patch is generally provided with a straight line of weakening as disclosed in Patent Document 1. In this packaging bag, the weak line is formed at the same position on the front and back of the packaging bag, so it is difficult to open and widen the edge of the cut formed after opening along the weak line (hereinafter referred to as “opening edge”). In addition, when the packaged object is separated from the opening edge, there is a problem that it is difficult to take out the packaged object inside. In particular, in the case of a sheet-like article to be packaged such as a patch, this problem becomes significant because the outer peripheral portion of the packaging bag tends to adhere.

  For this reason, conventionally, like the packaging bag described in Patent Document 2, the surrounding seal portion is used as a seal between the easily peelable resin layers, and the packaging bag is opened after opening from the weak line formed along one side. There has been proposed one that can be opened so as to be a double door. If the packaging bag can be opened so as to be spread, the inner package can be easily taken out.

Registered Utility Model No. 2566444 JP-A-11-171244

  However, also in the packaging bag described in Patent Document 2, the weakening line is formed at the same position on the front and back of the packaging bag. It had to be inserted, and it took time and effort to take out the package.

  Then, an object of this invention is to provide the packaging bag from which the removal of a to-be-packaged item becomes easy after opening.

  In order to achieve the above object, according to the present invention, a first packaging film and a second packaging film are overlapped, and the periphery of the packaging bag is cut to open the packaging bag. A scheduled opening line is defined, and at least one of the first packaging film and the second packaging film has a property of curving in an unloaded state, and the packaging bag is arranged along the planned opening line. Immediately after opening, the scheduled opening line is defined such that at least a part of the opening edge of the first packaging film is separated from the opening edge of the second packaging film.

  As an example of the planned opening line, when opening along the planned opening line, at least part of the portion between one end and the other end of the opening edge is one end and the other end. Some are located outside the straight line connecting Here, “outward” used in the present specification refers to an outward direction when viewed from the center of the packaging bag.

  In the packaging bag having such a configuration, at the same time as opening, at least a part of the opening edge of the first packaging film is separated from the opening edge of the second packaging film. As a result, it is possible to insert a finger between the separated opening edges, and it is possible to easily take out the inner package.

  Regarding the degree of separation between the opening edges, at least a part of the opening edge of the first packaging film is 3 mm or more within 3 seconds immediately after opening the packaging bag along the planned opening line. It is preferable that the distance is away from the opening edge. If it is separated within 3 seconds, it is possible to cope with urgent need to take out the package, and if it is separated by 3 mm or more, it is possible to insert a finger into the packaging bag. is there.

  When the packaging bag is rectangular (including a square), the opening schedule line includes a first opening schedule line extending in parallel with the first side in the vicinity of the first side of the packaging bag, and the first side. What consists of the 2nd scheduled opening line extended in parallel with this 2nd side in the vicinity of the 2nd side of the packaging bag adjacent to is suitable. When opening along the planned opening line, about half of the area of the packaging bag is curved, the opening edges are greatly separated from each other, and the inner package is exposed to the outside. This is because the package can be taken out more easily. The term “parallel” as used herein is not limited to a completely parallel state, but a general parallel state, for example, a slight angle with respect to the corresponding side, or a planned opening line itself is wavy. Including those that are. In addition, a third scheduled opening line that extends in parallel with the third side of the rectangular packaging bag (side adjacent to the first or second side) may be provided.

  In order to surely perform opening along the planned opening line, it is effective that a weakening line for opening is formed on the planned opening line.

  In addition, it is preferable to apply silicon processing, embossing, or sand processing to at least one of the inner surface of the first packaging film and the inner surface of the second packaging film. This is because sticking between packaging films or sticking between a packaging film and an article to be packaged can be suppressed.

  As described above, according to the present invention, at the same time that the packaging bag is opened, the opening edges of the first and second packaging films are separated from each other, and it is easy to open and widen the opening edge. Become. Thereby, it becomes easy to take out the inner package. In particular, when the article to be packaged is in a sheet form, the conventional packaging bag has a tendency to be in close contact with the first packaging film and the second packaging film. Since the distance is separated, it is easy to take out the packaged item, which is very effective.

One Embodiment of the packaging bag by this invention is shown, (a) is before opening, (b) is a perspective view which shows the state after opening. (A)-(c) is sectional drawing along the II-II line | wire of (a) of FIG. 1 which shows the state of the packaging bag after opening from before opening. It is a conceptual diagram which shows the preparation methods of the packaging bag which has the property to curve in an unloaded state. It is sectional drawing similar to FIG. 2 which shows another embodiment of the packaging bag by this invention. (A)-(c) is a perspective view which shows the form of the weak line applicable to the packaging bag of this invention, respectively.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  (A) of FIG. 1 is a perspective view which shows one Embodiment of the packaging bag 10 by this invention, (b) is a perspective view which shows the opening state. (A)-(c) of Drawing 2 is a sectional view showing roughly shape change of packaging bag 10 after opening from before opening.

  Although the external shape of the packaging bag 10 by this invention is not specifically limited, In order to simplify description, it is set as a rectangle in this embodiment. “Rectangle” includes those with rounded corners. Moreover, although the to-be-packaged object 12 which the packaging bag 10 packages is not limited, it is set as a sheet-like material, such as a patch for transdermally administering a drug. The outer shape of the article to be packaged 12 is not particularly limited, but is a rectangle similar to the packaging bag 10 in this embodiment.

  The packaging bag 10 includes a front side packaging film (hereinafter referred to as “first packaging film”) 14 and a back side packaging film (hereinafter referred to as “second packaging film”) 16. Each of the packaging films 14 and 16 is preferably a composite film having two or more layers, and the first and second packaging films 14 and 16 may be laminated with different materials. Moreover, as a material constituting the packaging films 14 and 16, paper, silicon processed paper, aluminum (AL), polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyacrylonitrile (PAN), ethylene vinyl alcohol (EVOH), cellophane, etc. are mentioned, In the case of a composite film, what combined these arbitrarily is considered.

  Specifically, the first and second packaging films 14 and 16 are preferably formed by laminating at least a PET layer, an aluminum layer, and a PE layer in order from the outer surface side. This is because the PET layer has low oxygen permeability, the aluminum layer has excellent airtightness, and has appropriate strength or rigidity. The PE layer is suitable for heat-sealing the packaging films 14 and 16. When a patch or the like is packaged by such a multilayer structure of materials, it is possible to prevent deterioration of the drug and maintain the shape of the patch.

  Of course, the laminated structure of the packaging films 14 and 16 is not limited to the above, and can be variously considered. For example, from the outside, PET / AL / PAN laminated, PET / PE / AL / PET laminated, cellophane / PE / AL / PET laminated, or cellophane / PE / AL / PAN A laminate or the like can be suitably used.

  Moreover, both the 1st and 2nd packaging films 14 and 16 have the property to curve in a no-load state. The packaging films 14 and 16 having such properties can be produced by various methods. For example, in the case of a packaging film having a three-layer structure of a PET layer, an aluminum layer, and a PE layer, conceptually as shown in FIG. As shown in the drawing, packaging films 14 and 16 that are curved in an unloaded state are obtained by laminating the outer layer (PET layer) on the other side with tension applied to the outer layer (PE layer) on the other side. Can do. Further, the outer layer on one side can be made of a heat-shrinkable material, and after being laminated, the outer layer can be heat-treated to have a curved property.

  The first and second packaging films 14 and 16 are oriented so that the concavely curved surface (PET layer side) is the outer surface of the packaging bag 10 in an unloaded state, and then the outer peripheral portions are sealed. . Thereby, the packaging bag 10 provided with an accommodating part and a seal part 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.

  Moreover, in the packaging bag 10 which concerns on this embodiment, the part shown with a dashed-two dotted line, ie, the straight line extended in parallel along each of two adjacent sides among the four sides of a packaging bag, tears and opens a packaging bag. Therefore, the scheduled opening lines 18 and 20 are obtained. In order to open along the planned opening lines 18 and 20, it is preferable to print a guide picture, symbol, or other display 22 on the surface of the packaging bag 10. In the illustrated embodiment, an arrow 22 is displayed, and it is more preferable to provide notches 23, 24, 25, 26, cut notches or saw-tooth cuts at the ends of the planned opening lines 18, 20. It is. Furthermore, it is effective to provide a weakening line that weakens the strength or rigidity of the packaging films 14 and 16 in order to more reliably perform opening along the planned opening lines 18 and 20. As the weakening line, the strength of the packaging films 14, 16 may be locally weakened by heat treatment, or the perforation may be considered.

  Next, with reference to FIG.1 and FIG.2, the opening method of the packaging bag 10 by this invention is demonstrated. First, in order to open the packaging bag 10, the user starts from one of the notches (23) at the end of one opening planned line (first opening planned line) 18 with the arrow 22. The packaging bag 10 is cut along the planned opening line 18 in the direction. Next, starting from the remaining notch 26, the packaging bag 10 is cut along the remaining opening schedule line (second opening schedule line) 20 in the direction of the arrow 22.

  When the opening is completed in this way, at the same time, due to the nature of the first and second packaging films 14 and 16, the inner portions of the respective opening edges 28 and 30 connect the both ends 32 and 34 of the opening edges 28 and 30. Bending starts around the connecting straight line, the unsealed edges 28 and 30 are separated from each other, and the state shown in FIG. 1B and FIG. In this state, since a part of the article 12 to be packaged is exposed, the user can pick up the exposed portion of the article 12 to be packaged with a finger, and can easily take it out. In particular, a patch for heart disease or the like has a strong request to quickly apply the patch to the skin when a seizure occurs, but the packaging bag 10 according to the present embodiment can sufficiently meet such a request. is there.

  Although the curve starts at the same time as opening, the time until the final stable state shown in FIGS. 1B and 2C is preferably within 3 seconds. This is because, if this state is reached within 3 seconds, it is considered that it is possible to cope with the case where the removal of the article 12 to be packaged is urgent. Even in a conventional packaging bag, depending on the type of the packaging film, if the packaging film is left unopened, the packaging film may bend gradually due to changes in humidity and temperature. However, the packaging bag 10 according to the present invention has an opening edge immediately after opening. In order to separate 28 and 30 from each other, the packaging films 14 and 16 having a property of bending in an unloaded state are positively used, and both should be distinguished.

  Moreover, (b) of FIG. 2 may be the final stable state. Even in this state, the space S into which the finger is inserted is formed between the unsealing edges 28 and 30, and the inside of the packaging bag 10 can be pushed open from here to take out the article 12 to be packaged. Further, when the article 12 to be packaged is a sheet-like article, the outer peripheral portions of the first and second packaging films tend to be in close contact with each other in the conventional configuration, so that even a slight space S is formed between the opening edges 28 and 30. It is effective. If the size of the space S is 3 mm or more, and more preferably 10 mm or more, it is considered that a finger can be inserted. More preferably, the thickness is 20 mm. In this case, the object to be packaged 12 can be picked and taken out without inserting a finger into the space S and pushing the packaging bag 10 open.

  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, in the said embodiment, although the 1st and 2nd packaging films 14 and 16 shall have the property to curve together, only any one of the 1st and 2nd packaging films 14 and 16 has the property. It may be included. In this case, when opened, the state is as shown in FIG. In addition, only the portion that needs to be curved may be curved.

  Moreover, this curve may reach the state wound in the mainspring shape or the spiral shape beyond the state of FIG. 1C or FIG.

  Furthermore, when forming a weakening line on a scheduled opening line, various forms as shown to (a)-(c) of FIG. 5 can be considered. When the weakening line 36 is formed as shown in the respective drawings in FIG. 5, only the hatched portion is curved with the line connecting the points 38 and 40 as an axis.

  Further, in the case of a rectangular packaging bag, the opening schedule line is not limited to two along the two sides as shown in FIG. 2, and three opening schedule lines extending in parallel with the three sides of the packaging bag may be defined. Good. As described above, “parallel” is not limited to a completely parallel state, but a general parallel state, for example, a slight angle with respect to a corresponding side, or a planned opening line itself is wavy. Also includes what is.

  Furthermore, in order to prevent the first and second packaging films from sticking to each other or these packaging films from sticking to the packaged object, the inner surface of these packaging films (the surface on the packaged object side) is silicon. Processing, embossing, and sand processing should be performed.

DESCRIPTION OF SYMBOLS 10 ... Packaging bag, 12 ... Packaged object, 14 ... 1st packaging film, 16 ... 2nd packaging film, 18 ... 1st opening schedule line, 20 ... 2nd opening schedule line, 22 ... Arrow, 23 , 24, 25, 26 ... notches, 28, 30 ... opening edge, 32, 34 ... end of opening edge, 36 ... weak line, S ... space

Claims (6)

In the packaging bag for patches, the first packaging film and the second packaging film are stacked and the periphery is closed,
The packaging bag is rectangular,
An opening schedule line to be cut to open the packaging bag is defined in the first packaging film and the second packaging film, and the opening schedule line is in the vicinity of the first side of the packaging bag. And a second opening extending in parallel with the second side in the vicinity of the first opening planned line extending in parallel with the first side and the second side of the packaging bag adjacent to the first side. Of the planned opening line,
From the outer surface, the first packaging film and the second packaging film are each a laminated structure of a polyethylene terephthalate layer, an aluminum layer and a polyethylene layer, an outer surface is a laminated structure of a polyethylene terephthalate layer, an aluminum layer and a polyacrylonitrile layer, and an outer surface. Laminated structure of polyethylene terephthalate layer, polyethylene layer, aluminum layer and polyethylene terephthalate layer, cellophane layer from outside, laminated structure of polyethylene layer, aluminum layer and polyethylene terephthalate layer, and cellophane layer, polyethylene layer, aluminum layer and polyacrylonitrile layer from outside One laminated structure selected from the group consisting of laminated structures, and has a property of bending in an unloaded state,
Within 3 seconds immediately after opening the packaging bag along the planned opening line, at least part of the opening edge of the first packaging film is 3 mm or more away from the opening edge of the second packaging film , Each of the opening edge of the first packaging film and the opening edge of the second packaging film is in a final stable state protruding in a direction away from the patch contained in the packaging bag before opening. A packaging bag, characterized in that it is configured.   The packaging bag according to claim 1, wherein a weakening line for opening is formed on the planned opening line.   The packaging bag according to claim 1 or 2, wherein at least one of the inner surface of the first packaging film and the inner surface of the second packaging film is subjected to silicon processing, embossing, or sand processing. . In the packaging bag for patches, the first packaging film and the second packaging film are stacked and the periphery is closed,
One opening schedule line to be cut to open the packaging bag is defined for each of the first packaging film and the second packaging film,
From the outer surface, the first packaging film and the second packaging film are each a laminated structure of a polyethylene terephthalate layer, an aluminum layer and a polyethylene layer, an outer surface is a laminated structure of a polyethylene terephthalate layer, an aluminum layer and a polyacrylonitrile layer, and an outer surface. Laminated structure of polyethylene terephthalate layer, polyethylene layer, aluminum layer and polyethylene terephthalate layer, cellophane layer from outside, laminated structure of polyethylene layer, aluminum layer and polyethylene terephthalate layer, and cellophane layer, polyethylene layer, aluminum layer and polyacrylonitrile layer from outside One laminated structure selected from the group consisting of laminated structures, and has a property of bending in an unloaded state,
Each of the planned opening line of the first packaging film and the planned opening line of the second packaging film is such that at least a part of a portion between one end and the other end is the It is a portion located outside the straight line connecting one end and the other end,
Within the opening edge of the first packaging film within 3 seconds immediately after opening the packaging bag along the planned opening line of the first packaging film and the planned opening line of the second packaging film. The portion located outside is 3 mm or more away from the opening edge of the second packaging film, and the portion located outside the opening edge of the first packaging film and the second Each of the opening edge of the packaging film and the part located outside is configured to be in a final stable state protruding in a direction away from the patch accommodated in the packaging bag before opening . A packaging bag characterized by that.   The packaging bag according to claim 4, wherein a weakening line for opening is formed on the planned opening line.   The packaging bag according to claim 4 or 5, wherein at least one of the inner surface of the first packaging film and the inner surface of the second packaging film is subjected to silicon processing, embossing, or sand processing. .

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