JP6909593B2 - 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, in the present invention, the packaged object storage space surrounded by the peripheral seal portion formed on the peripheral edge portion of one laminated film or a plurality of laminated films overlapped with each other in the width direction is described. In a packaging bag 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 includes two or more normal seal portions and two or more weak seal portions. Each of these seal portions is arranged alternately , and the weak seal portion is a continuous passage having a shape gradually narrowed from one of the partitioned storage chambers to the other storage chamber. It becomes part and a portion gradually communication passage of the wide shape is to propose a packaging bag according to this and features are arranged alternately.

In the above packaging bag,
( 1 ) The partition wall seal portion has the normal seal portion located at least in the central portion in the length direction.
(2) the septum seal portion has an overall length of the case extending in the width direction of the material to be packaged storage space, from the direction of the edge perpendicular to the width direction of the material to be packaged storage space,該被package housing space It must be installed at a position separated by 10% or more of
(3) the partition sealing portion, said case extending in the longitudinal direction of the articles to be packaged storage space, from the direction of the edge perpendicular to the longitudinal direction of the該被package housing space,該被package housing space It must be installed at a position separated by 10% or more of the total width of
( 4 ) The weak seal portion is provided so that extension lines of two line segments serving as a boundary line between the weak seal portion and the normal seal portion intersect at an angle of 10 to 160 °.
( 5 ) At least one of the 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.
( 6 ) When the perforated sealing portion presses the storage chamber and applies the pressure of the object to be packaged to the partition wall sealing portion side end edge, the perforated sealing portion is between the two overlapping laminated films at the side end edge. It must be provided at a position where the formed angle is 180 ° or less.
( 7 ) The perforated seal portion is provided at a position where the distance from the side edge edge on the side adjacent to the partition wall seal portion to the side edge edge of the partition wall seal portion is 1 mm or more.
( 8 ) The perforated seal portion has a gap of 1 to 50 mm formed between the seal portions.
Is a more preferred solution.

In the packaging bag of the present invention, the partition seal portion for partitioning the packaged object storage space of the packaging bag into a plurality of storage chambers is a weak passage for mixing the packaged objects filled in each storage chamber. The weakly sealed portion is provided with a sealing portion so that the weakly sealed portion becomes a passage having a gradually narrower shape or a passage having a gradually wider shape from one of the partitioned storage chambers toward the other storage chamber. It is configured in.
Therefore, among the storage chambers, the storage chamber in which the side edge of the weak seal portion on the wide side is located (hereinafter, referred to as "storage chamber on the wide side") is pressed with a finger to press the weak seal portion. When peeled off, the communication passage formed in the peeled portion gradually narrows toward the other storage chamber, so that the object to be packaged is accelerated by passing through the communication passage and filled in the other storage chamber. It will be sprayed vigorously on the packaged object. Therefore, according to the present invention, a plurality of objects to be packaged can be easily mixed and stirred by one push into the storage chamber.

Moreover, the septum seal portion is constituted by the two or more of the weak seal portion and two or more conventional sealing portion, by providing them alternately, applied load caused by an impact such as during transportation and handling the weak There is no risk of concentrating only on the seal portion, erroneous opening can be suppressed, and a plurality of narrow passages are formed by peeling off the weak seal portion, and the passage passes through the plurality of passages. The object to be packaged is diffused in, and the effects of the above mixing and stirring can be further improved.

In particular, a weak seal portion formed of increasingly narrow width shape toward the other storage room, mix with the weak seal portion gradually from wide shape, by exchange with each other are arranged, is pressed one of the housing chamber First, of the weakly sealed portions, only the portion having a wide shape on the storage chamber side is peeled off, and at the same time, the object to be packaged is vigorously ejected into the other storage chamber, and then the other storage chamber is pressed. Since the remaining weakly sealed portion is peeled off and the packaged object is vigorously sprayed into one of the storage chambers, the packaged objects can be mixed and stirred more effectively.

In the present invention, by locating the normal seal portion at least in the central portion in the length direction of the partition wall seal portion, the pressure of the object to be packaged is most concentrated and the peeling of the central portion of the partition wall seal portion, which is easily peeled off, is suppressed. This makes it possible to more effectively prevent unexpected opening during handling and the like.

Further, according to the present invention, the peel strength of the partition wall seal portion can be increased by changing the ratio (pitch, etc.) between the normal seal portion and the weak seal portion without adjusting the fusion strength of the weak seal portion. It can also be easily adjusted.

Further, in the present invention, the partition wall 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 10% or more of the total length or width of the packaged object storage space. When the storage chamber is pressed, sufficient pressure can be applied to the object to be packaged, and the weak seal portion provided on the partition wall seal portion can be easily peeled off by pressing force with a finger, and the packaged object can be easily peeled off. It is possible to improve the effect of stirring by passing through the communication passage formed by the peeling of the weakly sealed portion.

Further, in the present invention, the weak seal portion is crossed by an extension line of two line segments serving as a boundary line between the weak seal portion and the normal seal portion at an angle of 10 to 160 °, preferably 30 to 120 °. The weak seal portion can be configured to be peeled off only when the storage chamber on the wide side is pressed.

Further, in the present invention, when the perforated seal portion extending along the partition seal portion is provided at a position separated from at least one side edge of the partition seal portion, the packaging bag is unexpectedly provided during transportation or the like. Even if a load is applied to the partition wall seal portion, the pressure of the object to be packaged toward the partition wall seal portion can be relaxed by the perforated seal portion, so that the weak seal portion of the partition wall seal portion may be unexpectedly peeled off. do not have.

Moreover, the peeling of the weakly sealed portion of the isolation seal portion is greatly affected by the expansion angle (hereinafter, also referred to as "seal edge angle") of the two overlapping laminated films at the side edge of the partition seal portion, and the seal. The larger the 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, according to the perforated seal portion, when the weakly sealed portion provided on the partition wall seal portion is peeled off by the pressure of the object to be packaged by pressing against one of the storage chambers, the object to be packaged becomes the perforated seal. It is sprayed so as to diffuse into the other storage chamber through a plurality of narrow gaps provided between the seal portions of the portions, so that the objects to be packaged can be effectively mixed and stirred. ..

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, in the present invention, the perforated seal portion is provided at a position where the seal edge angle α is 180 ° or less, preferably 30 to 120 °, and / or the perforated seal portion is provided on the partition wall thereof. By providing the distance from the side edge of the side adjacent to the seal portion to the side edge of the partition seal portion in the range of 1 mm or more, preferably 3 to 15 mm, the erroneous peeling of the weak seal portion is further prevented. In addition to being able to effectively prevent the objects to be packaged, 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. ..

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 packaged object in two storage chambers in the packaging bag of FIG. It is a figure which shows the weak seal part enlarged. It is a figure which shows one Embodiment of the packaging bag of this invention. FIG. 5 is a diagram illustrating a method of mixing and stirring objects to be packaged in two storage chambers in the packaging bag of FIG. It is a figure which shows another embodiment of the packaging bag of this invention. It is a figure which shows the other embodiment of the perforated seal part. It is sectional drawing at the position III-III of FIG.

It will be described below with reference to the implementation form of the invention 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. Moreover, in this packaging bag, a storage space 2 for the object to be packaged is formed inside by the outer peripheral edge seal portion. Although such an embodiment shows a four-sided sticker-shaped pouch, 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 are used. Can be.

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 so as to extend in the length direction of the packaging bag 1, and the storage space 2 is divided into two, but the storage space 2 is not limited to this. Instead, the partition wall seal portion 3 may be provided so as to extend in the width direction of the packaging bag 1, or may be provided in plurality of the partition wall seal portions 3 and may be divided into a plurality of storage chambers.

As shown in FIG. 1, the partition wall sealing portion 3 of the packaging bag 1 is preferably a normal sealing portion 4 having a sealing strength as high as that of the outer peripheral sealing portion of the packaging bag 1 and the normal sealing portion 4. Is provided with weak seal portions 5 having a seal strength of about 50% or less alternately. The weak seal portion 5 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 4. 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 the weak seal portion 5 is peeled off by pressing the packaging bag 1 with a hand as described later that the seal width is 1 mm or more, preferably 3 to 10 mm. It becomes easy to adjust the pressing force at the time of making.

In FIG. 1, the weakly sealed portion 5 has a shape in which the second storage chamber 2b side is wide and the width gradually narrows toward the first storage chamber 2a, but the weakly sealed portion 5 is formed on the first storage chamber 2a side. The width may be wide and the second storage chamber 2b may be narrow.

In this packaging bag 1, as shown in FIG. 2, the second storage chamber 2b, which is a storage chamber on the wide side, is pressed by a finger to add the packaged object B filled in the second storage chamber 2b. When pressure is applied, the weakly sealed portion 5 of the partition wall sealing portion 3 is peeled off by the pressure of the packaged object B, and a communication passage 7 is formed in the peeled portion.

With the peeling of the weakly sealed portion 5, the packaged object B in the second storage chamber 2b is pushed out to the first storage chamber 2a through the communication passage 7, and at this time, the packaged object B is the first. It is accelerated by passing through the communication passage 7 which gradually becomes narrower toward the storage chamber 2a, and is injected from the communication passage 7 into the first storage chamber 2a at a high pressure. Therefore, by performing one push to the second storage chamber 2b, the packaged object A and the packaged object B are immediately mixed in the first storage chamber 2a, and the packaged object B is smoothly agitated.

In FIG. 1 of FIG. 1 of the packaged object storage space 2, the partition wall sealing portion 3 is preferably provided at a position where the shortest distance d from the left and right side edge edges is 10% or more of the total width W of the packaged object storage space W. This is because when the distance d is less than 10%, the capacity of the storage chambers 2a and 2b to be pressed is too small, and the weak seal portion 5 cannot be peeled off by one push to the storage chambers 2a and 2b. The effect of stirring the packaged object by pressing the storage chambers 2a and 2b may not be sufficiently obtained.

Further, the weak seal portion 5 is partitioned by two boundary lines 10 and 11 provided between the weak seal portion 5 and the normal seal portion 4 as shown in an enlarged manner in FIG. 2. It is formed so that the intersection angle θ (expansion angle of the weak seal portion 5) of the extension lines of the boundary lines 10 and 11 is within the range of 10 to 160 °, preferably 30 to 120 °. As a result, the weak seal portion 5 can be configured so that it can be peeled off only when the storage chamber on the wide side (the second storage chamber 2b side in FIG. 1) is pressed. The packaging bag 1 provided with such a weakly sealed portion 5 can be suitably used for packaging an object to be packaged, for example, a dressing, a chemical solution, or the like, which brings about flavor and compounding components depending on the mixing order.

Next, FIG. 4 shows an embodiment of the packaging bag of the present invention.
In the packaging bag 1, the partition wall seal portion 3 is composed of a plurality of weak seal portions 5 and a normal seal portion 4, and the weak seal portions 5 and the normal seal portions 4 are alternately arranged. In the packaging bag 1 of this embodiment, the concentration of the pressure of the object to be packaged on the weakly sealed portion 5 is suppressed as compared with the case where the weakly sealed portion 5 is provided only at one place of the partition wall sealing portion as in the prior art. It is possible to prevent erroneous opening.

The weak seal portion 5 has a shape in which the first storage chamber 2a side is wide and gradually narrows toward the second storage chamber 2b (hereinafter, referred to as “width reduction weak seal portion 5a”), and the first. Storage chambers 2a having a narrow width and gradually widening toward the second storage chamber 2b (hereinafter referred to as "widening weak seal portion 5b") are alternately arranged. In the present invention, the plurality of weak seal portions 5 may be composed of only the plurality of narrowing weak seal portions 5a or only the widening weak seal portions 5b.

As shown in FIG. 5, for example, when the first storage chamber 2a is pressed with a finger to pressurize the packaged object A filled in the first storage chamber 2a, the pressure of the packaged object A causes a partition wall. Of the weak seal portions 5 of the seal portion 3, only the narrow-width weak seal portion 5a having a wide width on the first storage chamber 2a side is peeled off, and a plurality of communication passages 7 are formed in the peeled portion. The widening weak seal portion 5b has a narrow width on the first storage chamber 2a side, a small area in contact with the object to be packaged at the side edge of the partition wall sealing portion 3, and a large contact area with the object to be packaged. Since the seal portion 5a is preferentially peeled off, it is not easily peeled off.

With the peeling of the narrowing weak seal portion 5a, the packaged object A in the first storage chamber 2a is pushed out to the second storage chamber 2b through the communication passage 7, but at this time, the packaged object A is pushed out to the second storage chamber 2b. , It is accelerated by passing through the communication passage 7 which gradually becomes narrower toward the second storage chamber 2b, and is injected from the plurality of communication passages 7 into the second storage chamber 2b with a high pressure. Therefore, when one push is performed to the first storage chamber 2a, the packaged object A and the packaged object B are immediately mixed and stirred in the second storage chamber 2b. Further, this time, the second storage chamber 2a in which the object to be packaged A and the object to be packaged B are mixed is pressed, and the object to be packaged A is placed between the first storage chamber 2a and the second storage chamber 2b. By repeating the movement of B and B, the packaged object can be stirred at a more uniform concentration, so that it can be suitably used for a packaged object that requires stirring immediately before the start of use, for example, dressing.

It is preferable that the partition wall seal portion 3 has a normal seal portion 4 located at the center thereof. The reason is that the upper and lower ends of the partition wall seal portion 3 are restrained by the outer peripheral edge seal portion of the packaging bag, so that the degree of freedom in the opening (peeling) direction is low, whereas the central portion is the outer peripheral edge seal. This is because the binding force of the part does not work, so the degree of freedom is high and it is the easiest to peel off.

Next, FIG. 6 shows another embodiment of the packaging bag of the present invention.
In the packaging bag 1 of FIG. 6, the storage space 2 is divided into the first storage chamber 2a and the second storage chamber 2b by the partition wall seal portion 3, and the side edge of the partition wall seal portion 3 in the second storage chamber 2b. A perforated seal portion 8 extending in parallel with the partition wall seal portion 3 is provided at a position separated from the partition wall seal portion 3. In the figure, the perforated seal portion 8 is provided in parallel with the partition wall seal portion 3, but the perforated seal portion 8 may be formed along the partition wall seal portion 3, for example, the partition wall. It may be provided so as to be inclined diagonally with respect to the seal portion 3. Further, the perforated seal portion 8 may be provided in each storage chamber.

The perforated seal portion 8 is composed of two or more seal portions 8a (composed of five seal portions 8a in FIG. 6) in order to exert the functions of mixing and stirring the object to be packaged as described later. Further, each seal portion 8a has the same seal strength as the normal seal portion 4 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, and the pressure of the packaged object A presses the weakly sealed portion 5. Of these, only the narrowing weak seal portion 5a will be peeled off. The packaged object A that has passed through the communication passage 7 formed in the peeled portion of the narrowed weak seal portion 5a further passes through the plurality of gaps 9 of the perforated seal portion 8 to enter the second storage chamber 2b. It is sprayed toward the object to be packaged B at a high pressure, and the object to be packaged A and the object to be packaged B are mixed and stirred.

Further, when the second storage chamber 2b is unexpectedly pressed, the perforated seal portion 8 can temporarily block the packaged object B toward the side edge of the partition wall seal portion 3 to relieve the pressure. Therefore, the high pressure of the object to be packaged B does not directly apply to the side edge of the partition wall seal portion 3, and it is possible to prevent the partition wall seal portion 3 from being erroneously opened. This effect can be more effectively exhibited when the perforated seal portion 8 is provided in each of the first storage chamber 2a and the second storage chamber 2b.

Further, the object to be packaged is injected at a high pressure by passing through a plurality of gaps 9 formed between the seal portions 8a of the perforated seal portion 8, and the effect of uniform mixing and stirring of the packaged object is achieved. Can be improved. This effect is more effectively exhibited when the perforated seal portion 8 is provided in each of the first storage chamber 2a and the second storage chamber 2b.

Here, the perforated seal portion 8 is formed so that the length of the gap 9 formed between the seal portions 8a shown in FIG. 6 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 9 can be made appropriate, and the seal can be made appropriate. The parts 8a are not peeled off, and the objects to be packaged A and B are sprayed so as to smoothly pass through the gap 9 and diffuse into the other storage chamber without causing backflow from the gap 9. The packages A and B can be mixed and stirred.

Each seal portion 8a of the perforated seal portion 8 has a rectangular shape as shown in FIG. 6, a circular shape as shown in FIG. 7, 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 8a 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.

In addition, as shown in the cross-sectional view (FIG. 8) of III-III of FIG. 6, the peeling of the weak seal portion 5 of the isolation seal portion 3 is performed by 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 α) of 6b is large, and the larger the seal edge angle α, 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 α is set. Since the rise is suppressed, there is no possibility that the weak seal portion 5 is unexpectedly peeled off during handling or the like.

When the perforated seal portion 8 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 α 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 8a. It can be jetted vigorously through 9, and the objects to be packaged can be effectively mixed and stirred.

Similarly, when the perforated seal portion 8 is provided so that the distance D (FIG. 6) 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 unexpected peeling of the weakly sealed portion 5, and can vigorously inject the objects to be packaged through the gap 9 between the sealed portions 8a, effectively ejecting the objects to be packaged with each other. Can be mixed and agitated.

Using the four-sided seal type packaging bag 1 shown in FIG. 1, the relationship between the expansion angle θ (see FIG. 3) of the weakly sealed portion 5 and the pressing force (maximum load (N)) on the storage chambers 2a and 2b is examined. investigated. The packaging bag 1 used had a bag width of 80 mm and a bag length of 160 mm, and each storage chamber 2a and 2b was filled with a total amount of 35 g of water.

(Examination 1)
The seal width of the partition wall seal portion 3 is fixed to 10 mm, the side edge length on the narrow side of the weak seal portion 5 (L2 in FIG. 3) is fixed to 5 mm, and the expansion angle θ is changed from 0 to 160 °. The 1st storage chamber 2a or the 2nd storage chamber 2b was pressed, and the maximum load for moving the object to be packaged was measured after the weakly sealed portion 5 was opened. The results are shown in Table 1.

(Examination 2)
The seal width of the partition wall seal portion 3 is fixed to 10 mm, the side edge length on the narrow side of the weak seal portion 5 (L2 in FIG. 3) is fixed to 8 mm, and the expansion angle θ is changed from 30 to 90 °. The 1st storage chamber 2a or the 2nd storage chamber 2b was pressed, and the maximum load for moving the object to be packaged was measured after the weakly sealed portion 5 was opened. The results are shown in Table 2.

From the results of Tables 1 and 2, it was found that the pressing force required for peeling changed depending on the difference in the expansion angle θ and the side edge length of the weak seal portion 5. Further, the expansion angle θ of the weak seal portion 5 is set to a lower limit value of 10 ° so that the weak seal portion 5 can be peeled off by pressing with a finger when the wide side (second storage chamber) is pressed, and the weak seal portion 5 is weakly sealed. From the point of view of manufacturing the portion 5, it was found that the upper limit value is preferably 160 °.

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 4 Normal seal part 5 Weak seal part 5a Narrowing weak seal part 5b Widening weak seal part 6a, 6b Laminated film 7 consecutive passages 8 Perforated seal part 8a Seal part 9 Gap 10, 11 Boundary line

Claims (9)

The packaged object storage space surrounded by the peripheral seal portion formed on the peripheral edge portion of one laminated film or a plurality of laminated films overlapped with each other in the width direction is the packaged object storage space. In a packaging bag partitioned into a plurality of storage chambers by a partition seal portion provided in the width direction or the length direction.
The partition wall seal portion includes two or more normal seal portions and two or more weak seal portions, and each of these seal portions is arranged alternately , and the weak seal portions are partitioned in the storage chamber. A packaging bag characterized in that a portion having a gradually narrower shape and a portion having a gradually wider shape are alternately arranged from one side toward the other storage chamber. The packaging bag according to claim 1, wherein the partition wall seal portion is located at least in a central portion in the length direction. The septum seal portion, said case extending in the width direction of the material to be packaged storage space, from the direction of the edge perpendicular to the width direction of the material to be packaged storage space, 10% of the total length of該被package housing space The packaging bag according to claim 1 or 2 , wherein the packaging bags are provided at the above separated positions. The partition sealing portion, when extending in the longitudinal direction of the articles to be packaged storage space, from the direction of the edge perpendicular to the longitudinal direction of the該被package housing space, the full width of該被package housing space The packaging bag according to claim 1 or 2 , wherein the packaging bags are provided at positions separated by 10% or more. The weak seal portion is characterized in that extension lines of two line segments serving as a boundary line between the weak seal portion and the normal seal portion are provided so as to intersect at an angle of 10 to 160 °. The packaging bag according to any one of claims 1 to 4. A claim characterized in that at least one of the 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. Item 5. The packaging bag according to any one of Items 1 to 5. The perforated line sealing portion, the pressure of the storage chamber to press the to be packaged when subjected to the septum seal portion side end edge, is formed between the two sheets of the laminated film overlap at the side edges The packaging bag according to claim 6 , wherein the packaging bag is provided at a position where the angle is 180 ° or less. The claim is characterized in that the perforated seal portion is provided at a position where the distance from the side end edge on the side adjacent to the partition wall seal portion to the side end edge of the partition wall seal portion is 1 mm or more. Item 6. The packaging bag according to Item 6. The packaging bag according to any one of claims 6 to 8 , wherein the perforated seal portion has a gap formed between the seal portions of 1 to 50 mm.

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