JP2020138756A - Packaging bag - Google Patents

Abstract

To provide a packaging bag which generates a sound when a liquid content is taken out from the packaging bag.SOLUTION: A packaging bag 1 comprises: a pair of flexible sheet members 10 arranged oppositely to each other; adhesive parts 20 having the sheet members 10 bonded at peripheral edges to each other; an a storage space 30 formed between the sheet members 10 to store a liquid content A. This packaging bag further comprises a sound generation part 40 provided to an outer surface 10d inside the adhesive part 20 of one of the sheet members 10 and configured to generate a sound when pressed. Each of the adhesive parts 20 has a weak adhesive part 24 having an adhesive strength of the peripheral edges lower than other parts of the adhesive part 20.SELECTED DRAWING: Figure 1

Description

The present invention relates to a packaging bag.

Conventionally, there is a packaging bag in which contents such as candy candies are sealed and packaged. In this packaging bag, for example, as described in Patent Document 1, the contents are contained in a tubular film, and two openings, one on one side and the other on the other side, are sealed.

In the packaging bag described in Patent Document 1, when the contents are taken out, the film is pinched from both sides of the packaging bag from both sides of the packaging bag and pushed toward the contents, and the contents are sealed on the side of the film. Move to and remove the seal. Therefore, the contents can be taken out from the film. When the contents are taken out, a plosive sound is generated when the sealed portion is peeled off, and the package is opened.

JP-A-2000-255598

However, in the packaging bag described in Patent Document 1, when the content is liquid, if there is no gas together with the liquid content in the film, there is a possibility that a bursting sound will not be generated when the sealed portion is peeled off. ..

An object of the present invention is to provide a packaging bag that generates a sound when the liquid content is taken out from the packaging bag in order to solve the above-mentioned problems in the prior art.

Among the means for solving the above problems, the main means of the present invention is a pair of sheet members that are flexibly arranged to face each other and an adhesion in which peripheral edges of the pair of the sheet members are adhered to each other. It has a portion and a storage space portion formed between the pair of the sheet members and accommodating the liquid contents, and is provided on an outer surface inside the adhesive portion of any one of the pair of the sheet members. The packaging has a sound generating portion that generates a sound when pressed, and the adhesive portion has a weak adhesive portion in which the adhesive strength between the peripheral portions is weaker than that of other portions of the adhesive portion. It's called a bag.

When the sound generating portion is pressed while the liquid contents are contained in the accommodating space, the reaction force acting on the sound generating portion from the seat member is relatively large, so that the force due to the pressing operation is effective. The sound is generated from the sound generating portion by acting on the sound generating portion, and the force acting on the sound generating portion acts on the liquid content via the sheet member, and the liquid content presses the weakly bonded portion. Therefore, the weakly bonded portion is peeled off by the pressure from the liquid content, and the liquid content is taken out through the weakly bonded portion. Therefore, a sound can be generated when the liquid contents are taken out from the packaging bag. Further, even when only the liquid contents are stored in the storage space and the gas does not exist in the storage space, the sound generation unit can generate a sound when the liquid contents are taken out from the packaging bag. ..

Further, the sound generating portion includes a protrusion formed in a climaxed tubular shape having flexibility, a bottom plate portion that closes an opening that opens to the bottom side of the protrusion, an inner surface of the protrusion, and the above. It has a space portion surrounded by a bottom plate portion and accommodating a gas, and the sound generating portion may be adhered to the outer surface of the sheet member via the bottom plate portion.

In this case, since the sound generating portion is adhered to the outer surface of the seat member via the bottom plate portion, the sound generating portion can be easily provided on the seat member.

Further, the sheet member is formed by laminating a plurality of sheet layers, and a climax tubular protrusion is formed on the outermost sheet layer among the plurality of sheet layers, and the protrusions are formed. The opening that opens to the bottom side is covered with another sheet layer adjacent to the innermost side of the sheet layer located on the outermost side, and is surrounded by the inner surface of the protrusion and the other sheet layer to form a space. , Gas may be contained.

In this case, the protrusions are formed on the outermost sheet layer among the plurality of laminated sheet layers. Therefore, since the protruding portion is formed at the same time when the sheet member is molded, it is possible to further facilitate the production of the packaging bag having the protruding portion.

Further, the sound generating portion may generate a sound by bursting the side wall of the protruding portion when pressed.

In this case, the side wall of the protrusion of the sound generating portion bursts to generate sound. Therefore, when the pressing operation position is the top of the protrusion, the pressing operation position (top) and the sound generating position It can be separated from the (side wall). Therefore, the sound can be generated smoothly by the sound generating unit.

Further, in the weakly bonded portion, the weakly bonded portion may be peeled off at the same time when a sound is generated from the sound generating portion.

In this case, since the weakly bonded portion is peeled off at the same time as the sound is generated from the sound generating portion, the liquid contents can be taken out at the same time as the sound is generated.

Further, the pair of the seat members may be arranged so that the ends on one side are connected to each other and the connected portions form a crease so that the pair of the seat members face each other.

In this case, since the pair of sheet portions are connected via the crease portion, the area of the portion where the pair of sheet members are adhered can be reduced.

Further, a rupture notch may be provided on the side wall of the protrusion.

In this case, since the rupture notch is provided on the side wall of the protrusion, the side wall of the protrusion can be positively ruptured through the rupture notch when the protrusion is pressed.

According to the present invention, it is possible to provide a packaging bag that generates a sound when the liquid contents are taken out from the packaging bag.

It is a perspective view of the packaging bag which concerns on 1st Embodiment. It is an exploded perspective view of a packaging bag. FIG. 3A is a perspective view of a sound generating portion having a heart-shaped protrusion, and FIG. 3B is a perspective view of a sound generating portion having a diamond-shaped protrusion. It is a perspective view of the packaging bag which concerns on 2nd Embodiment. It is sectional drawing of the part corresponding to the arrow IV-IV of the packaging bag shown in FIG.

Hereinafter, the packaging bag according to the embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a packaging bag containing liquids such as cosmetics and seasonings (hereinafter, referred to as “liquid contents”) will be described.

In the drawings, the central axis of the packaging bag is described as the bag axis J, the direction parallel to the bag axis J is simply described as the "axial direction", and the radial direction centered on the bag axis J is simply referred to as the "diametric direction". Describe. Further, in the bag axis J direction, the direction in which the sound generating portion is located with respect to the seat member is described as "upper side", and the opposite side is described as "lower side". Further, among the radial directions, the direction in which the bag axis J has a crease is described as "left side", and the opposite side is described as "right side". Further, among the radial directions, the direction in which the weakly bonded portion is present with respect to the bag shaft J is described as "front side", and the opposite side is described as "rear side".

<Overall configuration>
[First Embodiment]
FIG. 1 is a perspective view of the packaging bag according to the first embodiment. FIG. 2 is an exploded perspective view of the packaging bag. As shown in FIG. 1, the packaging bag 1 of the present embodiment has a pair of sheet members 10 and 10, an adhesive portion 20, a storage space portion 30, and a sound generating portion 40. The pair of seat members 10, 10 have flexibility and are arranged facing each other. In the adhesive portion 20, the peripheral portions of the pair of sheet members 10 and 10 are adhered to each other. The storage space portion 30 is formed between the pair of seat members 10 and 10 to store the liquid content A. Note that FIG. 1 shows a state in which the liquid content A is contained. Hereinafter, each component will be described in detail.

<Sheet member 10>
As the sheet member 10, for example, a plastic film is used as shown in FIG. The plastic film is preferably a single layer or a laminate such as a polyester resin, polypropylene, polyethylene, nylon resin, or ethylene vinyl alcohol. An adhesive portion 20 is provided on the peripheral edge of one side of the plastic film.

In the present embodiment, the sheet member 10 is formed in a square shape in a plan view. The shape of the sheet member 10 is not limited to a square shape, and various shapes can be selected, and may be a triangle, a rectangle, a polygon, a circle, or the like.

Further, in the pair of seat members 10 and 10, the ends on one side are connected to each other, and the connected portions form creases 11 and the pair of seat members 10 and 10 are arranged facing each other. In the present embodiment, the pair of seat members 10 and 10 have a crease 11 on the left side with respect to the bag shaft J, and are arranged so as to extend to the right side of the crease 11 and face each other. The pair of sheet members 10, 10 have the same shape and the same size. The pair of sheet members 10, 10 are arranged so that their outer shapes overlap each other. It is preferable that the thicknesses of the sheet members 10 and 10 in the vertical direction are such that they are flexible and are not easily damaged.

<Adhesive part 20>
The adhesive portion 20 has a first adhesive portion 21 extending in a strip shape in the front-rear direction along the inside of the piece 10a at the right end of the sheet member 10, and a left-right direction along the inside of the piece 10b at the front end of the sheet member 10. It has a second adhesive portion 22 extending in a strip shape, and a third adhesive portion 23 extending in a left-right direction along the inside of a piece 10c of the rear end portion of the sheet member 10.

For the first adhesive portion 21, the second adhesive portion 22, and the third adhesive portion 23, for example, a heat-resistant resin such as polyethylene (PE) or polypropylene (PP) can be used on the adhesive surface of the sheet member 10. The pair of sheet members 10, 10 are adhered to each other with the first adhesive portions 21, the second adhesive portions 22, and the third adhesive portions 23 facing each other.

The adhesive portion 20 has a weak adhesive portion 24 in which the adhesive strength between peripheral portions is weaker than that of other portions of the adhesive portion 20. In the present embodiment, the weak adhesive portion 24 is provided at the intermediate portion in the left-right direction of the second adhesive portion 22. The weakly bonded portion 24 is formed in a rectangular shape in a plan view. The weakly bonded portion 24 is not limited to a rectangular shape, and various types can be selected as long as the liquid content A can be taken out from the inside of the packaging bag 1, and may be square, trapezoidal, or the like.

The weakly bonded portion 24 has an adhesive strength such that the weakly bonded portion 24 is peeled off at the same time when a sound is generated from the sound generating portion 40. Therefore, the liquid content A can be taken out from the weakly bonded portion 24 at the same time as the sound is generated. When a sound is generated, the weakly bonded portion 24 in the bonded state is peeled off, so that the weakly bonded portion 24 is in the bonded state before the sound is generated. Therefore, since it can be recognized that the liquid content A is not in contact with the outside air, it can be recognized that the liquid content A has high freshness by generating a sound.

In the weakly bonded portion 24, the adhesive strength of the weakly bonded portion 24 is adjusted so that the weakly bonded portion 24 is peeled off when the sound generating portion 40 bursts.

<Accommodation space 30>
In the present embodiment, as shown in FIG. 1, the accommodating space portion 30 is between a pair of sheet members 10 and 10, and has a crease 11, a first adhesive portion 21, a second adhesive portion 22, and a third adhesive portion 23. It is an area surrounded by. The accommodation space portion 30 has a square shape in a plan view. The storage space 30 is not limited to a square shape, and various types can be selected as long as the liquid content A can be stored, and may be a triangle, a rectangle, a polygon, a circle, or the like in a plan view.

The liquid content A is stored in the storage space 30. The liquid content A is filled in the accommodation space 30 in a state where any two of the first adhesive portion 21, the second adhesive portion 22, and the third adhesive portion 23 are adhered to each other, for example. .. After filling the liquid content A, the remaining adhesive portion is adhered.

<Sound generator 40>
As shown in FIGS. 1 and 2, the sound generating portion 40 is provided on the outer surface 10d inside any of the adhesive portions 20 of the pair of sheet members 10 and 10, and when pressed, a sound is generated. The sound generating portion 40 includes a protrusion 41 formed in a flexible and eclipsed tubular shape, a bottom plate portion 45 that closes the opening 42 that opens to the bottom side of the protrusion 41, and an inner surface of the protrusion 41. It has a space portion 48 surrounded by a bottom plate portion 45 and accommodating a gas. The sound generating portion 40 is adhered to the outer surface of the sheet member 10 via the bottom plate portion 45. Therefore, the sound generating portion 40 can be easily provided on the seat member 10.

In the present embodiment, the sound generating unit 40 is provided at the central portion of the seat member 10 in a plan view. Further, the sound generating portion 40 is formed of a plastic film. The plastic film is preferably polyethylene (PE), for example.

(Protrusion 41)
In the present embodiment, the protrusion 41 has a climax cylindrical shape. The protrusion 41 is not limited to a climax cylinder, and various types can be selected as long as the pressing operation is possible, and the protrusion 41 may be a climax triangle, a rectangle, a polygon, or the like. The protrusion 41 has a disc-shaped top 41a and a tubular side wall 41b extending downward from the peripheral edge of the top 41a. The reason why the top portion 41a is formed in a disk shape is that the fingertips of the operator's hand are brought into contact with the top portion 41a to facilitate the pressing operation. An opening 42 is formed on the lower side of the protrusion 41. The opening 42 is closed by the bottom plate 45.

(Bottom plate 45)
In the present embodiment, the bottom plate portion 45 has a square shape in a plan view. The bottom plate portion 45 is not limited to a square shape, and various types can be selected as long as it can close the opening 42 on the lower side of the protrusion 41, and may be a triangle, a rectangle, a polygon, a circle, or the like. Good. The lower surface of the bottom plate portion 45 is adhered to the outer surface 10d of the sheet member 10 via an adhesive. The means for adhering the bottom plate portion 45 to the outer surface 10d of the sheet member 10 is not limited to the adhesive, but double-sided tape or heat seal may be used.

(Space part 48)
The space portion 48 is a region surrounded by the inner surface of the top portion 41a and the side wall 41b of the protrusion portion 41 and the upper surface of the bottom plate portion 45, and is a columnar region. For example, air is housed in the space 48. Therefore, when the protrusion 41 is pressed and deformed, the region inside the space 48 is narrowed and the air is compressed. The compressed air urges the side wall 41b. When the force for urging the side wall 41b increases, the side wall 41b bursts to generate a sound. That is, the sound generation unit 40 generates sound when the side wall 41b of the protrusion 41 bursts when pressed. Therefore, in the sound generation unit 40, the position where the pressing operation is performed and the position where the sound is generated are different, so that the sound is generated smoothly.

The force that urges the side wall 41b also acts on the top 41a and the bottom plate 45, but the operator's finger comes into contact with the top 41a, and the lower surface of the bottom plate 45 adheres to the sheet member 10. Has been done. Therefore, the top portion 41a and the bottom plate portion 45 are stronger in strength than the side wall 41b and are less likely to burst. Further, the side wall 41b has a thickness such that the adhesive strength when the weakly bonded portion 24 is peeled off and the strength of the side wall 41b when the side wall 41b bursts are the same. Therefore, the liquid content A can be taken out from the weakly bonded portion 24 at the same time as the sound is generated.

Further, the air pressure in the space 48 of the sound generating unit 40 is adjusted so that the sound generating unit 40 is likely to burst when pressed.

<Action and effect of packaging bag 1>
Next, the action and effect of the packaging bag 1 will be described with reference to FIG. When the sound generating portion 40 is pressed while the liquid content A is accommodated in the accommodating space portion 30, the reaction force acting on the sound generating portion 40 from the seat member 10 is relatively large, so that the pressing operation is performed. The force effectively acts on the sound generating section 40 to generate sound from the sound generating section 40, and the force acting on the sound generating section 40 acts on the liquid content A via the sheet member 10 to generate the liquid content. The object A presses the weakly bonded portion 24. Therefore, the weak adhesive portion 24 is peeled off by the pressure from the liquid content A, and the liquid content A is taken out through the weak adhesive portion 24. Therefore, a sound can be generated when the liquid content A is taken out from the packaging bag 1. Further, even when only the liquid content A is stored in the storage space 30 and the gas does not exist in the storage space 30, the sound generating unit 40 is used when the liquid content A is taken out from the packaging bag 1. Sound can be generated from.

Therefore, it is possible to provide the packaging bag 1 that generates a sound when the liquid content A is taken out from the packaging bag 1.

Although the configuration of the present invention and its action and effect have been described above with reference to the first embodiment, the embodiment of the present invention is not limited to the above embodiment. FIG. 3A is a perspective view of a sound generating portion 50 having a heart-shaped protrusion 51, and FIG. 3B is a perspective view of a sound generating portion 53 having a diamond-shaped protrusion 54. In the above-described embodiment, the protruding portion 41 of the sound generating portion 40 has a climax cylindrical shape, but is not limited to the climax cylindrical shape. As shown in FIG. 3 (a), the protrusion 51 may have a top 51a formed in a heart shape in a plan view, and the protrusion 51 may have a top 54a in a diamond shape in a plan view. It may be formed.

In this way, the shapes of the tops 51a and 54a of the protrusions 51 and 54 are formed in a heart shape or a diamond shape, so that the operator can be easily attracted. In addition, the appearance of the packaging bag 1 can be improved.

Further, in the above-described embodiment, the sound generating portion 40 includes a protrusion 41, a bottom plate portion 45, and a space portion 48, but the present invention is not limited to this. The protrusion 41 may be a capsule that makes a sound when crushed.

[Second Embodiment]
Next, a second embodiment of the packaging bag will be described. FIG. 4 is a perspective view of the packaging bag according to the second embodiment. FIG. 5 is a cross-sectional view of a portion of the packaging bag shown in FIG. 4 corresponding to the arrow IV-IV. In the second embodiment, only the differences of the first embodiment described above will be described, and the same reference numerals will be given to the parts having the same aspects as those of the first embodiment, and the description thereof will be omitted.

As shown in FIGS. 4 and 5, the sheet member 60 is formed by laminating a plurality of sheet layers 61 and 62, and the sheet layer 61 located on the outermost side of the plurality of sheet layers 61 and 62 is provided with a sheet layer 61. A ridged tubular protrusion 64 is formed, and the opening 65 that opens to the bottom side of the protrusion 64 is covered with another sheet layer 62 adjacent to the innermost side of the outermost sheet layer 61, and the protrusions. Gas is housed in the space portion 66 surrounded by the inner surface of the portion 64 and the other sheet layer 62. In this embodiment, the gas is air.

In the present embodiment, the sheet member 60 is formed by laminating two sheet layers 61 and 62. Since the top 64a and the side wall 64b of the protrusion 64 are formed of the same sheet layer 61, the thicknesses of the top 64a and the side wall 64b are the same. Therefore, since the burst strengths of the top 64a and the side wall 64b are substantially the same, there is a possibility that the side wall 64b cannot be positively burst. Therefore, a rupture notch 67 is provided on the side wall 64b of the protrusion 64.

The rupture notch 67 is obtained by cutting the outer surface of the side wall 64b with a laser or the like to partially reduce the thickness of the side wall 64b. Therefore, when the top portion 64a of the protrusion 64 is pressed, the side wall 64b can be positively ruptured via the rupture notch 67.

Although the configuration of the present invention and its action and effect have been described above with reference to the second embodiment, the embodiment of the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the protruding portion 64 of the sound generating portion 63 is shown in the case of having an eclipsed cylinder shape, but it may be an eclipsed cylinder shape and may have a triangular shape, a square shape, or the like in a plan view.

The packaging bag 1 of the present invention generates a sound when the liquid content A is taken out from the packaging bag 1, and is expected to be widely used in the field of packaging bags such as liquid cosmetics and seasonings.

1 Packaging bag 10, 60 Sheet member 10a, 10b, 10c Piece 10d Outer surface 11 Fold 20 Adhesive part 21 1st adhesive part 22 2nd adhesive part 23 3rd adhesive part 24 Weak adhesive part 30 Storage space part 40, 50, 53, 63 Sound generator 41, 51, 54, 64 Protrusions 41a, 51a, 54a, 64a Top 41b, 64b Side wall 42, 65 Opening 45 Bottom plate 48, 66 Space 61, 62 Sheet layer 67 Rupture notch A Liquid content Thing J bag shaft

Claims (7)

A pair of flexible and opposed seat members,
An adhesive portion in which the peripheral portions of the pair of sheet members are adhered to each other,
It has an accommodating space formed between the pair of the sheet members and accommodating the liquid contents.
It has a sound generating portion that is provided on the outer surface inside the adhesive portion of any one of the pair of the sheet members and generates a sound when pressed.
The packaging bag is characterized in that the adhesive portion has a weak adhesive portion in which the adhesive strength between the peripheral portions is weaker than that of other portions of the adhesive portion. The sound generating part is
Flexible and eclipsed tubular protrusions,
A bottom plate portion that closes the opening that opens to the bottom side of the protrusion, and
A space portion surrounded by the inner surface of the protrusion and the bottom plate and containing gas,
Have,
The packaging bag according to claim 1, wherein the sound generating portion is adhered to the outer surface of the sheet member via the bottom plate portion. The sheet member is formed by laminating a plurality of sheet layers.
A ridged tubular protrusion is formed on the outermost sheet layer among the plurality of the sheet layers.
The opening that opens to the bottom side of the protrusion is covered with another sheet layer adjacent to the innermost side of the outermost sheet layer.
The packaging bag according to claim 1, wherein gas is contained in the space surrounded by the inner surface of the protrusion and the other sheet layer. The packaging bag according to claim 2 or 3, wherein the sound generating portion is characterized in that the side wall of the protruding portion bursts to generate sound when pressed. The packaging bag according to claim 4, wherein the weakly bonded portion is characterized in that the weakly bonded portion is peeled off at the same time when a sound is generated from the sound generating portion. The packaging according to claim 1 or 2, wherein the pair of sheet members are connected to each other at one end, and the connected portions form creases so that the pair of sheet members are arranged to face each other. bag. The packaging bag according to claim 2 or 3, wherein a rupture notch is provided on the side wall of the protrusion.

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