JP6909592B2 - Packaging bag - Google Patents

Description

The present invention relates to a packaging bag in which a plurality of objects to be packaged, particularly a liquid substance, can be isolated from each other until the start of use, and can be quickly and easily merged at the time of use, and can be uniformly mixed.

For chemicals and chemicals, if different types of contents are mixed in advance in one bag, the state of the contents may change over time. For such items, it is necessary to keep each content in an isolated state until just before use, and to sufficiently mix each content at the start of use.

Conventionally, many techniques have already been proposed for packaging bags in which objects to be isolated and stored in one packaging bag (hereinafter, described as an example of "liquid") are mixed and used at the start of use. For example, in Patent Document 1, a temporarily fused portion is provided by providing a resin layer having no affinity with the fused resin layer of the film constituting the bag as a part of the divided seal portion that partitions and separates the inside of the packaging bag. There is disclosed a packaging bag that is formed and can be opened by pressing the temporarily fused portion by pressing the bag.

Japanese Unexamined Patent Publication No. 2013-166579

The technique disclosed in Patent Document 1 determines the peel strength of the temporarily fused portion by selecting conditions such as the resin layer forming the temporarily fused portion, the fusion width of the temporarily fused portion, and the shape thereof. We are proposing a method to adjust. However, this method has a problem that it takes a lot of time and effort, such as finely changing the conditions according to the specifications of the contents and the bag, and there are many problems to be solved for practical use.

By the way, in recent years, in supermarkets, convenience stores and the like, dressings in sachets for use in salads and the like have been sold, and the dressings have a property of separating an aqueous solution and oil. Therefore, it is necessary to sufficiently mix the aqueous solution and the oil by shaking the pouch immediately before use, but if it is weak, the mixture cannot be sufficiently mixed, and for example, only the oil is poured out in advance. Sometimes. Therefore, it is desired to develop a small bag that can easily stir the packaged object in the bag.

Therefore, an object of the present invention is to hold a plurality of types of contents in an isolated state until the start of use, and to mix the contents due to an impact during transportation or a load due to stacking of packaging bags. On the other hand, at the start of use, the contents can be easily mixed by pressing the contents with the fingers against the storage chamber, and in particular, the mixed contents can be easily mixed to achieve uniform mixing of the contents. Is to provide.

As a result of diligent studies to achieve the above object, the inventors have come up with the present invention according to the gist structure described below. That is, the present invention comprises a single laminated film or a plurality of laminated films folded in the width direction, and is surrounded by a peripheral seal portion formed on the peripheral edges of the laminated films overlapped with each other. In a packaging bag in which the storage space is divided into a plurality of storage chambers by a partition wall seal portion provided in the width direction or the length direction of the object storage space, the partition wall seal portion is a normal seal portion and the normal seal portion. The partition wall seal portion is composed of at least one weak seal portion formed therein, and at a position separated from the partition wall seal portion in each of the plurality of storage chambers partitioned by the partition wall seal portion. We propose a packaging bag characterized by being provided with a perforated seal portion extending along the line.

In the above packaging bag,
(1) When the perforated sealing portion presses the storage chamber and applies pressure to the packaged object to the side edge of the partition wall sealing portion, the perforated sealing portion is between the two overlapping laminated films at the side edge. It must be provided at a position where the formed angle is 180 ° or less.
(2) In the perforated seal portion, the side edge of the side adjacent to the partition seal portion is separated from the side edge of the partition seal portion by 1 mm or more.
(3) The perforated seal portion has a gap of 1 to 50 mm formed between the seal portions.
(4) When the perforated seal portion extends in the width direction of the packaged object storage space , the perforated seal portion extends at an end in a direction orthogonal to the width direction of the packaged object storage space. It shall be provided at a position separated from the edge by 10% or more of the total length of the packaged storage space.
(5) When the perforated seal portion extends in the length direction of the packaged object storage space , the perforated seal portion extends in the direction orthogonal to the length direction of the packaged object storage space. It shall be provided at a position separated from the edge of the package by 10% or more of the total width of the packaged storage space.
(6) The partition wall seal portion includes two or more weak seal portions and two or more normal seal portions, and each of these seal portions is arranged alternately.
Is a more preferred solution.

In the packaging bag of the present invention having the above-described configuration, the packaged object storage space is divided into a plurality of storage chambers by a partition seal portion having at least a weakly sealed portion, and the compartmentalized storage chamber is divided into a plurality of storage chambers. By providing a perforated seal portion extending along the partition seal portion at a position separated from the side edge of the partition seal portion, the partition seal is sealed by the pressure of the object to be packaged by pressing against one of the storage chambers. When the weakly sealed portion provided in the portion is peeled off, the object to be packaged is ejected so as to diffuse into the other storage chamber through a plurality of narrow gaps provided between the sealing portions of the perforated seal portion. Will be done.
That is, according to the packaging bag of the present invention, by pressing against one storage chamber, the object to be packaged in the storage chamber can be vigorously ejected into the other storage chamber through a plurality of narrow gaps. This allows the objects to be packaged to be effectively mixed and agitated.

Further, in the present invention, when the gap between the seal portions of the perforated seal portion is 1 to 50 mm, preferably 3 to 25 mm, the resistance when the packaged object passes through the gap becomes appropriate. The objects to be packaged can be effectively mixed and agitated by being jetted so as to smoothly pass through the gap without flowing back and diffuse into the other storage chamber.

Further, according to the present invention, by providing the perforated seal portion in each storage chamber partitioned by the partition seal portion, even if a load may be unexpectedly applied to the packaging bag during transportation or the like. Since the pressure of the object to be packaged toward the partition wall seal portion can be relaxed by the perforated seal portion, it is possible to prevent unexpected peeling of the weak seal portion provided on the partition wall seal portion.

The peeling of the weakly sealed portion of the isolation seal portion is affected by the expansion angle (hereinafter, also referred to as “seal edge angle”) formed between the two overlapping laminated films at the side edge of the partition seal portion. The larger the seal edge angle, the easier it is to peel off. On the other hand, in the present invention, as described above, the perforated seal portion provided near the partition wall seal portion can suppress the increase in the seal edge angle, so that the weak seal portion is erroneously used. The peeling can be effectively prevented.

Further, in the present invention, the perforated seal portion is provided at a position where the seal edge angle is 180 ° or less, preferably 30 to 120 °, and / or the perforated seal portion is provided on the partition wall seal. By providing the side edge on the side adjacent to the portion so as to be separated from the side edge of the partition wall seal portion by 1 mm or more, preferably 3 to 15 mm, erroneous peeling of the weakly sealed portion is more effectively prevented. At the same time, the objects to be packaged can be vigorously sprayed from the gaps between the seal portions of the perforated seal portions, and the objects to be packaged can be uniformly mixed and stirred.

Further, in the present invention, the perforated seal portion is provided at a position separated from the upper and lower end edges or the left and right side edge edges of the packaged object storage space by the total length or the total width of the packaged object storage space by 10% or more. As a result, sufficient pressure can be applied to the object to be packaged when the storage chamber is pressed, and the weakly sealed portion provided on the partition wall seal portion can be easily peeled off by pressing force with a finger, and the object to be packaged can be easily peeled off. , The effect of stirring by passing through the communication passage formed by the peeling of the weakly sealed portion can be improved.

Further, in the present invention, the partition wall seal portion is a combination of two or more weak seal portions and two or more normal seal portions, and the normal seal portions and the weak seal portions are alternately arranged during transportation. It is possible to prevent the load load due to impacts such as handling and handling from concentrating only on the weakly sealed part, and to prevent erroneous opening even more effectively. The objects to be packaged can be vigorously sprayed into the other storage chamber through a plurality of communication pipes formed in the partition wall seal portion by peeling off the weakly sealed portion, so that the objects to be packaged are effective. Can be mixed and stirred.

When the partition wall seal portion is configured by the combination of the weak seal portion and the normal seal portion as described above, the peel strength of the partition wall seal portion is the normal seal without adjusting the fusion strength of the weak seal portion. By changing the ratio (pitch, etc.) between the part and the weakly sealed part, it is possible to prevent accidental peeling during handling, etc., while it can be adjusted so that it peels off due to the pressure of the object to be packaged due to the pressure of the fingers or the like. ..

It is a figure which shows the reference example of the packaging bag of this invention. It is a figure explaining the method of mixing and stirring the object to be packaged in two storage chambers provided in the packaging bag of FIG. It is a partially enlarged view which shows the other embodiment of the perforated seal part. It is a figure which shows one Embodiment of the packaging bag of this invention. It is sectional drawing at the position III-III of FIG. It is a figure which shows the other embodiment of the packaging bag of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a reference example of a packaging bag according to the present invention. In the packaging bag 1, two packaging laminated films having a laminated structure of two or more layers including a sealant layer are provided, and the sealant layers are inner surfaces of each other. Overlapping so that they are on the sides, and sealing the outer peripheral edges on all sides by heat sealing, impulse sealing, high frequency welder sealing or ultrasonic sealing, or other known sealing methods, as shown in the figure with diagonal lines. Is. In this packaging bag 1, a storage space 2 for an object to be packaged is formed inside by a seal portion on the outer peripheral edge. In this embodiment, a four-sided sticker-shaped pouch is shown, but the present invention is not limited to this, and various types such as a three-way sticker bag, a back-attached sticker bag, a gusset bag, and a stand pack may be used. Can be done.

The storage space 2 of the packaging bag 1 is further divided into a first storage chamber 2a and a second storage chamber 2b by a partition wall seal portion 3 provided at a substantially central position in the width direction in the drawing. In 2b, different packages, for example, a water-soluble component such as soy sauce and an oil component such as salad oil are separately filled.

In the illustrated reference example , one partition wall seal portion 3 is provided in the packaging bag 1 and the storage space 2 is divided into two, but the present invention is not limited to this, and the partition wall seal portion 3 is used. A plurality of storage rooms may be provided and divided into a plurality of storage rooms.

As shown in FIG. 1, the partition wall sealing portion 3 of the packaging bag 1 is provided at a normal sealing portion 3a having a sealing strength as high as that of the outer peripheral sealing portion of the packaging bag 1 and a central portion in the length direction. It is composed of a weak seal portion 3b having a seal strength of preferably about 50% or less of the normal seal portion 3a. The weak seal portion 3b is made peelable by the pressure of the liquid object to be packaged, preferably has a seal strength of 2 to 20 N / 15 mm width, more preferably 5 to 15 N / 15 mm width, and is usually a seal of the seal portion 3a. It is preferable that the width is the same as the width or narrower than the seal width.

The seal width of the partition wall seal portion 3 is not particularly limited, but it may be 1 mm or more, preferably 3 to 10 mm, as described later, by pressing the packaging bag 1 with a hand to weakly seal the portion 3b. It becomes easy to adjust the pressing force when peeling off only.

Further, the formation position, number and shape (rectangular shape, circular shape, polygonal shape, trapezoidal shape, etc.) of the weak seal portion 3b are not particularly limited, and the side edge of the weak seal portion 3b shown in FIG. 1 is not particularly limited. The length h in the above may be 1 mm or more, and the partition wall seal portion 3 may be all composed of the weak seal portion 3b.

Further, as shown in FIG. 1, the packaging bag 1 of the reference example has a perforated seal portion 5 extending in parallel with the partition wall seal portion 3 at a position in the second storage chamber 2b separated from the side edge of the partition wall seal portion 3. Is provided. In the figure, the perforated seal portion 5 is provided parallel to the partition wall seal portion 3, but the perforated seal portion 5 may be formed along the partition wall seal portion 3, for example, the partition wall. It may be provided at an angle with respect to the seal portion 3.

The perforated seal portion 5 is composed of two or more seal portions 5a (consisting of five seal portions 5a in FIG. 1) in order to exert the functions of mixing and stirring the object to be packaged as described later. Further, each seal portion 5a has the same seal strength as the normal seal portion 3a of the partition wall seal portion 3, and does not peel off at the pressure of the object to be packaged when the storage chambers 2a and 2b are pressed by fingers. And.

In this packaging bag 1, when the first storage chamber 2a is pressed with a finger, the packaged object A filled in the first storage chamber 2a is pressurized as shown in the drawing for explaining the usage method of FIG. Then, the weakly sealed portion 3b of the partition wall sealing portion 3 is peeled off by the pressure of the packaged object A.

With the peeling of the weakly sealed portion 3b, the packaged object A in the first storage chamber 2a is pushed out to the second storage chamber 2b, and at this time, the packaged object A is pushed into the second storage chamber 2b. By passing through a plurality of gaps 4 formed between the seal portions 5a of the perforated seal portions 5 provided, the particles are injected into the second storage chamber 2b at a high pressure, whereby the second storage chamber 2b is injected. The object to be packaged A and the object to be packaged B are mixed and stirred inside.

Further, by pressing the second storage chamber 2b to move the mixture of the object to be packaged A and the object to be packaged B into the first storage chamber 2a and repeating this operation, the object to be packaged has a more uniform concentration. Can be mixed and stirred, so that it can be suitably used for an object to be packaged, for example, which requires stirring immediately before the start of use, such as dressing.

Here, the perforated seal portion 5 is formed so that the length d of the gap 4 formed between the seal portions 5a shown in FIG. 1 is 1 to 50 mm, preferably 3 to 25 mm. As a result, when the storage chambers 2a and 2b are pressed by fingers, the resistance when the objects to be packaged A and B move to the partition wall seal portion 3 through the gap 4 can be made appropriate, and the seal can be made appropriate. The parts 5a are not peeled off, and the objects to be packaged A and B are sprayed so as to smoothly pass through the gap 4 and diffuse into the other storage chamber without causing backflow from the gap 4. The packages A and B can be mixed and stirred.

Each seal portion 5a of the perforated seal portion 5 has a rectangular shape as shown in FIG. 1, a circular shape as shown in FIG. 3, a triangular shape, a trapezoidal shape, and the like. As shown in the figure, those having the same shape may be arranged and formed, or those having different shapes may be used in combination. The length and width of each seal portion 5a are not particularly limited, but preferably, when the length is 2 to 50 mm and the width is 3 to 15 mm, the effects of the above mixing and stirring are further effective. Can be demonstrated effectively.

Further, the perforated seal portion 5 is provided at a position where the shortest distance L from the left and right side edge edges of FIG. 1 of the packaged object storage space 2 is 10% or more of the total width W of the packaged object storage space W. Is preferable. This is because if the distance L is less than 10%, the capacities of the storage chambers 2a and 2b to be pressed are too small, and the effect of stirring the packaged object by pressing the storage chambers 2a and 2b may not be sufficiently obtained. There is.

Next, FIG. 4 shows an embodiment of the packaging bag 1 of the present invention, in the packaging bag 1, the first housing chamber 2a and the second storage chamber 2b, both side edges of the septum seal portion 3 A perforated seal portion 5 extending along the partition wall seal portion 3 is provided at a position separated from the partition seal portion 3.
In this case, in addition to the effects of mixing and stirring the object to be packaged A and the object to be packaged B described above by the perforated seal portion 5, the perforated seal portions 5 press the storage chambers 2a and 2b. At that time, the pressure of the object to be packaged toward the side edge of the partition wall seal portion 3 is relaxed, and the high pressure of the object to be packaged does not directly apply to the side edge of the partition wall seal portion 3, and the partition wall seal is sealed. The effect of being able to prevent erroneous opening of Part 3 can be expected.

As shown in the cross-sectional view (FIG. 5) of III-III of FIG. 4, the weak seal portion 3b of the isolation seal portion 3 is peeled off from the two overlapping laminated films 6a at the side edge of the partition seal portion 3. The influence of the expansion angle (seal edge angle θ) of 6b is large, and the larger the seal edge angle θ, the easier it is to peel off. Against this, by providing the perforated seal portion 5 as described above, the degree of freedom in the opening direction (bulging direction) of the two laminated films 6a and 6b is reduced, and the seal edge angle θ is set. Since the rise is suppressed, there is no possibility that the weak seal portion 3b will be unexpectedly peeled off during handling or the like.

When the perforated seal portion 5 presses the storage chambers 2a and 2b and applies the pressure of the objects to be packaged A and B to the edge of the partition wall seal portion 3 side, the seal edge angle θ is 180 ° or less. When provided at a position preferably in the range of 30 to 120 °, the weak seal portion 3b can be effectively prevented from being peeled off unexpectedly, and the object to be packaged can be placed in a gap between the seal portions 5a. It can be jetted vigorously through 4, and the objects to be packaged can be effectively mixed and stirred.

Similarly, when the perforated seal portion 5 is provided so that the distance α (FIG. 4) from the side edge thereof to the side edge of the partition wall seal portion 3 is 1 mm or more, preferably 3 to 15 mm. Can effectively prevent the weakly sealed portion 3b from being peeled off unexpectedly, and can also vigorously inject the objects to be packaged through the gap 4 between the seal portions 5a, effectively separating the objects to be packaged from each other. Can be mixed and agitated.

Further, FIG. 6 shows another embodiment of the packaging bag of the present invention.
In the packaging bag 1, the partition wall sealing portion 3 is composed of a plurality of weakly sealed portions 3b and a plurality of normal sealing portions 3a alternately provided. Therefore, as compared with the case where the weak seal portion 3b is provided only at one place of the partition wall seal portion 3, the concentration of the pressure of the packaged object on the weak seal portion 3b is suppressed, so that erroneous opening is more effectively performed. Can be prevented.

Further, since the peeling strength of the partition wall seal portion 3 can be easily adjusted by changing the formation ratio of the weak seal portion 3b and the strong seal portion 3a, the weak seal can be easily adjusted according to the form of the packaging bag 1. By changing the number, length, etc. of the portion 3b and the strong sealing portion 3a, the peeling strength of the partition wall sealing portion 3 can be easily peeled off by pressing with a finger or the like, while unexpected peeling during handling can be performed. It can be set to prevent it. Further, after the weakly sealed portion 3b is peeled off, the objects to be packaged A and B momentum between the first storage chamber 2a and the second storage chamber 2b via a plurality of communication pipes formed in the peeled portion. Since it is sprayed well, the objects to be packaged A and B can be sufficiently mixed and stirred.

According to the packaging bag of the present invention, a plurality of contents of the same type or different types are held in an isolated state until the start of use, and the contents are uniformly mixed in the packaging bag by pressing with fingers at the start of use. It can be used in a wide range of fields such as chemicals and chemicals such as hair dyes and adhesives, as well as those that need to be agitated immediately before the start of use, such as dressings.

1 Packaging bag 2 Storage space for objects to be packaged 2a 1st storage room 2b 2nd storage room 3 Partition seal part 3a Normal seal part 3b Weak seal part 4 Gap 5 Perforated seal part 5a Seal part 6a, 6b Laminated film

Claims (7)

The packaged storage space, which is composed of a single laminated film or a plurality of laminated films folded in the width direction and is surrounded by a peripheral seal portion formed on the peripheral edges of the laminated films overlapped with each other, is covered with the laminated film. In a packaging bag divided into a plurality of storage chambers by a partition seal portion provided in the width direction or the length direction of the packaging storage space.
The partition wall seal portion is composed of a normal seal portion and a weak seal portion formed in at least one of the normal seal portions, and also
Each of the plurality of storage chambers partitioned by the partition wall seal portion is provided with a perforated seal portion extending along the partition wall seal portion at a position separated from the partition wall seal portion. Packaging bag. The perforated seal portion is formed between the two overlapping laminated films at the side edge when the pressure of the object to be packaged is applied to the side edge of the partition seal portion by pressing the storage chamber. The packaging bag according to claim 1, wherein the packaging bag is provided at a position where the angle is 180 ° or less. The perforated seal portion according to claim 1 or 2, wherein the side edge of the perforated seal portion on the side adjacent to the partition wall seal portion is separated from the side edge of the partition wall seal portion by 1 mm or more. Packaging bag. The packaging bag according to any one of claims 1 to 3, wherein the perforated seal portion has a gap formed between the seal portions of 1 to 50 mm. When the perforated seal portion extends in the width direction of the packaged object storage space , the perforated seal portion extends from the edge in the direction orthogonal to the width direction of the packaged object storage space. The packaging bag according to any one of claims 1 to 4, wherein the packaging bag is provided at a position separated by 10% or more of the total length of the object storage space. When the perforated seal portion extends in the length direction of the packaged object storage space , the perforated seal portion has an edge in a direction orthogonal to the length direction of the packaged object storage space. The packaging bag according to any one of claims 1 to 4, wherein the packaging bag is provided at a position separated by 10% or more of the total width of the packaged object storage space. One of claims 1 to 6, wherein the partition wall seal portion includes two or more weak seal portions and two or more normal seal portions, and each of these seal portions is arranged alternately. The packaging bag according to item 1.

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