JPH0834478A - Air bubble bag and its manufacture - Google Patents

Abstract

PURPOSE:To provide an air bubble bag wherein the structure and continuous manufacturing processes are simplified and made more efficient, and also a favorable cushioning performance can be obtained. CONSTITUTION:An intermediate film 23 is pinched between first and second films 21, 22, and an air chamber 12 is formed by a leading end sealing 31, partitioning sealing 32 and base end sealing 33, and the intermediate film 23 is made to go along with the second film 22 to make a check valve 40. Air 1 from an air passage 13 enters respective air chambers 12 through respective check valves 40, and expands the air chamber 12. The air 1 increases an internal pressure in the air chamber 12, and a nonreturn effect is generated by pressing the intermediate film 23 to the second film 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bubble bag and a method for manufacturing the same, and is used for manufacturing an air cushion bag, an air balloon or an air cushion used as a cushioning material for packaging.

[0002]

BACKGROUND ART Conventionally, when packing articles such as home electric appliances, office automation equipment, precision machines and works of art that are desired to avoid damage, a cushioning material is packed in the box to reduce the impact during transportation. There is. Foamed plastic blocks and the like have been used for many years as such cushioning materials.

However, due to consideration of environmental problems in recent years,
There is a demand for a cushioning material to replace foamed plastic, which is difficult to dispose. In order to meet such a demand, an air cushioning body that uses air as a cushioning body, specifically, a bubble type air cushioning body in which air is enclosed in a plastic film bag has come to be used. As such an air cushion, a pillow bag type having substantially cylindrical bubbles, a tetra bag type having regular tetrahedral bubbles, and the like are used.

In the production of the bubble type air cushioning body as described above, first, two films are superposed on each other and heat-sealed, and the periphery of the film is sealed except for a part to be an injection port. At the same time as forming the chamber, air is injected from this injecting section to inflate the bubble, and then the injecting section is sealed by heat fusion sealing or the like.

However, if there is a large time difference between the injection of air and the sealing of the injection portion in the manufacturing process, the injected air leaks out and the expanded bubble deflates. For this reason, in such a case, an air cushion bag is used in which a check valve is provided in the injection portion to prevent the injected air from leaking out.

[0006]

However, the air cushion bag with a check valve which has been conventionally used is a commercially available or pre-manufactured check valve, and therefore the structure and the assembling process are complicated. However, there is a problem that manufacturing by a continuous process becomes difficult, and component cost and manufacturing cost increase. Further, since the existing check valve has a base member made of a relatively hard plastic material, etc., when it is used as a cushioning material, it hinders bending etc. at the relevant part, and when it comes into contact with an article to be protected, May cause damage. Further, even in the case of using a check valve made of an existing soft film, in order to continuously manufacture it, it is necessary to accurately incorporate one check valve into each independent air bubble bag. However, the control was extremely difficult, and in some cases defective products were observed, which was not sufficient for industrial production. Such a problem is not limited to the air cushion bag, but is common to the air balloon or the air cushion having the same structure.

An object of the present invention is to provide an air bubble bag and a manufacturing method thereof, which can simplify the structure and a continuous manufacturing process efficiently and can obtain a good cushioning performance.

[0008]

DISCLOSURE OF THE INVENTION The present invention intends to achieve the above object as a structure in which another film is sandwiched between two films forming an air chamber which becomes a bubble and the film is used as a check valve. It is a thing. Specifically, the first and second films superposed on each other, a tip seal continuous in a predetermined direction for joining the first and second films to each other, and the first and second films to each other. At least a pair of continuous partition seals, which are joined together at the front end side with the front end seal, an intermediate film sandwiched between the base end sides of the respective partition seals and continuous along the front end seal, the intermediate film and the first And a proximal seal that joins one film and is continuous along the distal seal, surrounded by the distal seal, each partition seal, and the proximal seal between the first and second films. It is characterized in that an air chamber in which air is enclosed is formed by the space.

An air passage extending in the continuous direction of the films along the base seal is formed between the first and second films, and the air chamber and the air passage form the intermediate film. It is characterized in that they are communicated with each other through a gap between a portion on the tip seal side of the base seal and the second film. Further, the intermediate film is composed of two sheets of a first intermediate film bonded to the first film and a second intermediate film bonded to the second film by the base end seal, and the first and A ventilation path extending in the continuous direction of each film along the proximal seal is formed between the second films, and the air chamber and the ventilation path are the bases of the first intermediate film and the second intermediate film. It is characterized in that they communicate with each other through a gap between portions of the end seal facing each other on the tip seal side.

Alternatively, an air passage seal for joining the first and second films along the base seal is formed on the side of the base seal opposite to the air chamber, and the air passage has the first passage. And a space sandwiched between the air passage seal and the base end seal between the second film and the second film. Further, the base end seal joins the first and second films and the intermediate film together, and the partition seal joins the first film and the intermediate film in the vicinity of the base end seal. The ventilation passage is formed by a space along the base end seal between the second film and the intermediate film.

Further, the base end seal collectively joins the first and second films, the first intermediate film and the second intermediate film, and the partition seal is located near the base end seal. A first film, the first intermediate film, and the second film and the second intermediate film are to be joined together, and the air passage is between the first intermediate film and the second intermediate film. It is characterized by being formed by a space along the base end seal.

A fusion prevention layer is formed between the two films forming the ventilation passage in a region corresponding to the partition seal to prevent fusion between the surfaces of the two films facing each other. It is characterized by

Further, the first and second films which are overlapped with each other, the tip seal which is continuous in a predetermined direction for joining the first and second films to each other, and the first and second films are mutually connected. At least a pair of continuous partition seals which are joined together at the front end side with the front end seal, and an intermediate film which is sandwiched on the base end side of the front end seals of the respective partition seals and which is continuous along the front end seal, A front end seal that joins the intermediate film and the second film and is continuous along the front end seal, the front end seal between each of the first and second films, each partition seal, and the base end. An air chamber in which air is enclosed is formed by a space surrounded by a seal, and the air chamber is formed between the first and second films by the base end. Through a gap between a portion of the intermediate film closer to the tip seal than the base end seal and the second film, to an air passage formed by extending in a continuous direction of each of the films. It is characterized by Further, the intermediate film is formed near the center of the tip seal and the base seal of the air chamber.

Further, the first and second films are continuous in a predetermined direction, the tip seals are formed along the edges of the films in the continuous direction, and the partition seals are formed on the respective films. It is characterized in that a large number are formed at predetermined intervals in the width direction. Further, the intermediate film is sandwiched between the second film or another intermediate film forming a ventilation gap between the portion closer to the distal end seal than the proximal end seal and the relevant portion and the distal end seal is formed. It is characterized by having a blocking agent continuous along.

Along the tip seal, the second film or another intermediate film forming a ventilation gap between the portion of the intermediate film closer to the tip seal than the base end seal and the portion. It is characterized in that it has an auxiliary seal that is joined to each other in a part of the direction. Further, between the two films forming the air chamber, a fusion prevention layer for preventing fusion between mutually opposing surfaces of the respective films is formed in a region corresponding to the auxiliary seal. Characterize.

In the method for manufacturing an air bubble bag of the present invention, the step of continuously supplying the second film and the step of continuously stacking the intermediate film on the second film along the flow direction of the second film. A step, a step of continuously forming a linear check valve auxiliary seal in the transverse direction intersecting the flow direction in the second film and the intermediate film which are overlapped with each other, and the second film And a step of continuously supplying and stacking the first film on the intermediate film along the flow direction, and a sealing step of performing a sealing process for forming an independent air bubble chamber in each of these films, and an air And a sealing step for forming an introduction air passage.

Further, an air introduction air passage is formed between the second film and the intermediate film so as to communicate with each other in the flow direction, and the second film and the intermediate film are formed in the air passage area. And a fusion preventing layer forming step of preventing fusion between surfaces facing each other with the air passage interposed therebetween.

Furthermore, a step of forming a blocking agent layer is provided in the check valve auxiliary seal forming portion between the second film and the intermediate film along the flow direction.

[0019]

In the present invention as described above, an air chamber surrounded by the tip seal, the partition seal and the base seal is formed between the first and second films. The air chamber communicates with the outside (or the air passage) through a gap (check valve) between the second film and the intermediate film, and is expanded as a bubble when air is sent from them. At this time, by injecting air into the interior and expanding the air chamber, the internal pressure of the air chamber rises, the intermediate film is pressed against the second film, and the ventilation gap between them is blocked. It

Alternatively, when two intermediate films are used, air is blown through the two intermediate films to expand the bubbles, and the internal films are pressed against each other by an internal pressure to press the intermediate films. The ventilation gap of is closed. However, even in this state, it is possible to further inject air by pushing open the ventilation gaps between the films by the injection pressure of air from the outside.

That is, the second film and the intermediate film,
Alternatively, the function as a check valve is realized by a set of films that form a ventilation gap, such as two intermediate films. Therefore, in the present invention, the backflow of the injected air can be prevented without incorporating a separate check valve or the like, and the check valve can be continuously formed in a sealing process such as heat fusion. In addition, since the check valve is formed of the film itself that forms the bubbles, it becomes possible to ensure good cushioning performance, and these can achieve the above object.

By providing an air passage communicating with the air chambers, it is possible to collectively inject air into the plurality of air chambers and further improve the manufacturing efficiency. When the air passage is provided outside the base end seal, it does not overlap with the air chamber, so that the structure of the seal and the film can be simplified. Further, when it is provided inside the base end seal, since it overlaps with the air chamber, a region dedicated to the ventilation passage is not required, and an effective area as a buffer can be obtained.

Here, when the ventilation passage is provided inside the base end seal, it is necessary to prevent the ventilation passage from being blocked by the partition seal. However, the corresponding portions of the first film and the intermediate film, etc. are treated in the previous step. It can be dealt with by sealing it. Alternatively, by forming a fusion preventing layer in the corresponding portion between the second film and the intermediate film, etc., the second film and the intermediate film can be easily facilitated during ventilation even when collectively sealed. The air passage can be secured by peeling it off, and the manufacturing efficiency can be improved.

When the second film and the intermediate film are joined together, an air chamber surrounded by the tip seal, the partition seal and the base seal is formed between the first and second films. The air chamber communicates with the outside (or the air passage) through a gap between the second film and the intermediate film, and when air is sent from these, it expands as a bubble. At this time, by injecting air into the interior and expanding the air chamber, the internal pressure of the air chamber rises, the intermediate film is pressed against the second film, and the ventilation gap between them is blocked. It

Further, when the intermediate film is formed near the center of the tip seal and the base end seal of the air chamber, the shape of the bubble is distorted at the end portion of the air chamber, but the shape of the intermediate portion is stable. Therefore, the performance of the intermediate film as a check valve is improved.

On the other hand, the first and second films are continuous in a predetermined direction, the tip seals are formed along the edges of the films in the continuous direction, and the partition seals are arranged in the width direction of the films. By making it possible to form a large number at predetermined intervals, continuous production using a roll film can be performed,
The efficiency can be further increased. Further, between the pair of films forming the ventilation gap, it is desirable that the surfaces have high adhesion to each other in order to enhance the function as a check valve.

For example, each film may be made of soft PVC or the like. When the ventilation gap is formed by two intermediate films, the first intermediate film and the second intermediate film can be separated from the first and second films, so that each of the first and second films can secure its strength. The degree of freedom in selecting the intermediate film can be increased by using a material with good adhesion. Alternatively, a blocking agent (adhesive,
By interposing a high-viscosity resin or fats and oils, it is possible to secure adhesion even with other film materials.

By intermittently joining a pair of films forming a ventilation gap with an auxiliary seal, the respective films can be kept in a state of being aligned with each other while ensuring ventilation, and a non-return Stable performance as a valve can be obtained. Here, when the auxiliary seal is provided, it is necessary to prevent the auxiliary seal from being joined to another film that forms an air chamber therebetween, but it does not correspond to a pair of films that form a ventilation gap. This can be dealt with by sealing the part in the previous step. Alternatively, by forming a fusion preventive layer at a portion corresponding to an auxiliary seal between another film forming an air chamber, even when performing a collective seal with other seals, the above-mentioned other The films can be easily peeled off to ensure the expansion of the air chamber, and the manufacturing efficiency can be improved.

According to the method for producing an air bubble bag of the present invention, the second film is continuously supplied, the intermediate film is continuously superposed on the second film, and then the linear auxiliary seal is continuously provided. And then the second film and the intermediate film are continuously fed with the first film and laid on top of each other, and then the sealing process is performed on each of these films, so that continuous and independent air bubbles can be formed. Since the chamber can be formed, it is not necessary to precisely control the position, and therefore continuous production is possible.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention. 4 (S1) and (S2) show the S1 cross section and the S2 cross section of FIG. 3, respectively.

As shown in FIG. 1, the air bubble bag 10 of this embodiment has elongated bubbles 11 which are continuous in a predetermined direction and extend from one edge of the air bubble bag toward the other. A plurality of bubbles 11 are arranged in parallel in the continuous direction of the air bubble bag 10. An air chamber 12 into which air is injected is formed inside each bubble 11, and by injecting and sealing air into this air chamber 12, the bubble 11 is maintained in an expanded state. A ventilation path 13 is formed along the other side edge of the air bubble bag 10, and air can be collectively injected into each air chamber 12 through the ventilation path 13.

As shown in FIGS. 2 to 4, the air bubble bag 10 comprises a first film 21 and a second film 22 which are superposed on each other, and an intermediate film 23 sandwiched between the first film 21 and the second film 22. ing. In this example, each of the films 21 to 23 is a transparent film. The first and second films 21 and 22 have the same width as each other and are overlapped so that both side edges thereof are aligned with each other. On the other hand, the intermediate film 23 has a small width and is sandwiched between the two films 21 and 22 in the vicinity of the edge on one side. And each of these films 21, 22, 23
Are heat-sealed to each other in a predetermined relationship by a tip seal 31, a partition seal 32, a base end seal 33, an auxiliary seal 34, and an air passage seal 35.

Here, an outline of an air bubble bag manufacturing apparatus 50 for manufacturing such an air bubble bag 10 will be described with reference to FIG. This air bubble bag manufacturing device 50 is configured such that a first original roll 51 that continuously draws out the second film 22 is used.
A blocking agent applicator 52 for applying the blocking agent 42 to the second film 22 drawn from the first original roll 51, a second original roll 53 for continuously drawing out the intermediate film 23, and an intermediate film 23. An anti-fusing printer 54 for printing the anti-fusing layer 43 on 23, and an auxiliary seal 34 on the second film 22 and the intermediate film 23 that are stacked.
Heat-sealing drum 55 that forms the second film 22, a third original roll 56 that continuously draws out the first film 21 on the second film 22 and the intermediate film 23, and a second film that is stacked. 22 and the first film 21 are provided with a front end seal 31, a partition seal 32, a base end seal 33, and a second heat seal drum 57 forming a ventilation path seal 35.

The first and second films 21 and 22 and the intermediate film 23 are respectively the first and second films as described above.
˜3 is a continuous film unwound from original rolls 51, 53, 56, and is cut into an appropriate length after each seal 31 to 35 is applied. Of these, the materials of the first and second films 21 and 22 are single-layer or multi-layer films, and in the case of multiple layers, it is desirable that the melting point of the seal face base material be lower than the melting point of the sealed face.

Specifically, LDPE and H are used as the seal layer.
DPE, L-LDPE, CP, EVA, PETG, etc., and OP, Ny, PET, PC, SP as the sealed layer
S, PEH, etc., and Al, EVOH,
PVDC, SiOx coating, etc. are preferable. The intermediate layer may be omitted. The material of the intermediate film 23 is the same as that of the first and second films 2 described above.
It is desirable that the film has excellent adhesiveness and adhesiveness with Nos. 1 and 22, and the same material as the films 21 and 22 may be used.

On the other hand, the seals 31 to 35 for joining the films 21 to 23 are provided in the following form.
The tip seal 31 is arranged along one side edge of each of the films 21 and 22, and extends continuously in the continuous direction of the films 21 and 22. The tip seal 31 joins the first and second films 21 and 22 to each other.

The partition seals 32 divide the air chambers 12 which become the bubbles 11 from each other, and a plurality of partition seals are arranged at the boundary positions of the respective air chambers 12. Direction).
In addition, the partition seal 32 has a tip seal 31 at one end.
And the other end reaches the vicinity of the edge of the intermediate film 23 on the air passage 13 side through the portion where the intermediate film 23 is arranged. The partition seal 32 is provided in the portion where the intermediate film 23 is absent.
The first and second films 21 and 22 and the intermediate film 2 are bonded to each other in the portion where the intermediate film 23 is present.
3 and 3 are joined together. However, the intermediate film 23
The first film 21 and the intermediate film 23 are bonded to each other in the vicinity of the air passage 13 side edge.

The base end seal 33 is formed on each of the films 21 and 22.
Of the partition seal 32 is arranged along the vicinity of the other edge (a boundary portion between the ventilation passage 13 and the air chamber 12).
The films 21, 2 are formed so as to intersect with the side edges.
The two extend continuously in the continuous direction (parallel to the tip seal 31). The base seal 33 is the first film 21.
And the intermediate film 23 are joined to each other.

A plurality of auxiliary seals 34 are provided between the base end seal 33 and the peripheral edge of the intermediate film 23 on the side of the front end seal 31 (here, between each two partition seals 32 forming each air chamber 12). Two of them are arranged, and each extends in parallel to the longitudinal direction of the air chamber 12 (the direction orthogonal to the continuous direction of the films 21 to 23). In addition, each end is separated from the base seal 33 and the edge of the intermediate film 23 by a predetermined distance. Further, a predetermined interval is formed between the auxiliary seals 34 and between each auxiliary seal 34 and each of the two partition seals 32 forming each air chamber 12.

The air passage seal 35 forms the air passage 13 between itself and the base end seal 33.
1 and 22 are arranged along the other edge of the base end seal 3
3 is extended continuously in the continuous direction of the films 21 and 22. This air passage seal 35 joins the first and second films 21 and 22 to each other.

These seals 31 to 35 divide the spaces between the films 21 to 23 so that the air chamber 1 described above is separated.
2 and a ventilation path 13 are formed. The air chamber 12 includes a tip seal 31, two partition seals 32, and a base end seal 33.
Formed between the first and second films 21 and 22 in the portion without the intermediate film 23, and between the first film 21 and the intermediate film 23 in the portion with the intermediate film 23. The gap becomes the air chamber 12. The ventilation passage 13 is formed in a section sandwiched between the base end seal 33 and the ventilation passage seal 35.

The air chamber 12 and the air passage 13 have a ventilation gap 4 between the second film 22 and the intermediate film 23.
It is communicated through 1. This ventilation gap 41 has a gap portion between each of the above-mentioned auxiliary seals 34 between the films 22 and 23 and between each of the auxiliary seals 34 and each of the two partition seals 32 forming each air chamber 12. The communication is carried out by expanding appropriately. That is, the air 1 is pressure-fed and supplied from the ventilation path 13 side to the air chamber 12, the intermediate film 23 is lifted from the second film 22, and the ventilation gap 41 is expanded to be in a communication state and supplied. The air 1 fills the air chamber 12 and expands the bubble 11.

On the other hand, when the air pressure in the air chamber 12 is increased and the internal pressure 2 is increased, the intermediate film 23 is pressed against the second film 22, and the ventilation gap 41 is closed. However, if the air 1 is supplied at a higher pressure, the ventilation gap 41 can be easily opened and the air can be supplied. These intermediate film 23, second film 22,
Each of the ventilation gaps 41 constitutes a check valve 40.

Since the intermediate film 23, which functions as the check valve 40, is bonded to the second film 22 at predetermined intervals by the auxiliary seal 34, the second film 22 is always irrespective of the presence or absence of ventilation. It is held close to 22 and the ventilation gap 41 is largely opened by curling up, so that there is no obstacle such as impairing the function as the check valve 40.

Further, a blocking agent 42 having adhesiveness is sandwiched in the ventilation gap 41 so that the airtight sealing property at the time of blocking the ventilation can be improved. As the blocking agent 42, an adhesive, a resin having a high viscosity, an oil or fat, or the like is used. Specifically, it is PB-1 (polybutene) or the like. These blocking agents 42 are selected so that their viscosity ensures the airtightness at the time of blocking, and does not hinder the operation of expanding the ventilation gap 41 by the ventilation from the ventilation path 13. The blocking agent 42 may be applied to the surface of either the intermediate film 23 or the second film 22 in advance so that it is sandwiched between the films 22 and 23.

Further, a fusion preventing layer 43 is formed between the intermediate film 23 and the second film 22 at a position corresponding to the base end seal 33. The fusion preventing layer 43 in this embodiment is a resin paint having a higher melting point than the material of each of the films 21 to 23.
3 the base end seal 33 formation position back surface (second film 22
It is formed by printing on the side surface). This fusion preventing layer 43 prevents fusion between the intermediate film 23 and the second film 22 even if three films 21 to 23 are stacked and the base end seal 33 is applied, and the fusion is slightly caused. Even if it occurs, it is easily peeled off by ventilation to the ventilation gap 41.

Next, a method of manufacturing the air bubble bag 10 of this embodiment will be described with reference to FIGS. First,
The second film 22 is continuously drawn from the first original roll 51, and the blocking agent 42 is applied to the surface of the second film 22 by the blocking agent applicator 52.
Is continuously applied to obtain a state as shown in the lower side of FIG. Next, the intermediate film 23 is continuously pulled out from the second original roll 53, and the anti-fusing layer 43 is continuously printed on the back surface of the intermediate film 23 by the anti-fusing layer printer 54. The state shown in the upper side of (A) is set.

After stacking these films 22 and 23, they are guided to the first heat-sealing drum 55,
The auxiliary seal 34 is continuously formed on the films 22 and 23 by the heat sealing drum 55 to bond the films 22 and 23. Then, the state shown in the lower side of FIG. Next, the first film 21 is applied to the third original roll 5
6 is continuously drawn out, and the first film 21 is joined to the intermediate film 23 to form the second film 2
Stack on the surface of 2. And these films 22, 2
1 is guided to the second heat sealing drum 57, and the second heat sealing drum 57 causes the tip seal 31, the partition seal 32, the base seal 33, and the air passage seal 35 to be attached to the second film 22 and the first film 21. Form each film 21-2
3, the air chamber 12 and the ventilation path 13 are formed. At this time, the feed phases of the films 21 and 22 are adjusted so that the auxiliary seal 34 is located between the partition seals 32. However, since the check valve formed of the intermediate film 23 is continuous, the partition seal 32 and the auxiliary seal 3 are
Even if the positional relationship with 4 is not the same, there is no particular inconvenience.

After the air chamber 12 and the air passage 13 are formed, each of the films 12 to 23 is cut into a predetermined length, and one end of the air passage 13 is closed and air is injected from the other end.
The injected air 1 is filled in the air chambers 12 from the air passage 13 through the check valve 40 and expands the air chambers 12 to form the bubbles 11 (see FIG. 2). The air 1 in the air chamber 12 does not return to the ventilation passage 13 or the outside again by the check valve 40, and the bubble 11 is maintained even if the injection of the air 1 is stopped. With these, the air bubble bag 10 having a large number of bubbles 11 is manufactured.

According to this embodiment as described above, the check valve 40 can be formed by the second film 22 and the intermediate film 23. Therefore, it is possible to prevent the backflow of the injected air without incorporating a separate check valve or the like as in the conventional case. Further, the formation of each air chamber 12 and the air passage 13 by the division of each film 21 to 23, and each air chamber 1
The check valve 40 up to 2 can be continuously formed in a sealing process such as heat fusion, and continuous production can be performed easily and reliably, and efficiency can be improved. Furthermore, since the check valve 40 is formed of the second film 22 forming the bubble 11 and the intermediate film 23 itself, the check valve 40 can be bent freely, and there is no possibility of causing impact on other articles. Good cushioning performance can be secured as the bag 10.

By providing the air passages 13 communicating with a large number of air chambers 12, air can be injected into each of the air chambers 12 at once, and the manufacturing efficiency can be further improved. Since this air passage 13 is provided outside the base end seal 33, it does not overlap with the air chamber 12, and the structures of the peripheral seals 33 and 35 and the films 21 to 23 can be simplified.

On the other hand, each of the films 21 to 23 is a continuous film, and the front end seal 31, the base end seal 33, and the air passage seal 35 are formed along the continuous direction of the respective films 21 to 23, and each partition seal 32 and auxiliary seal. By sequentially forming 34 in the width direction of each of the films 21 to 23 at a predetermined interval, continuous production using a roll film can be performed, and efficiency can be further improved. Furthermore, since the blocking agent 42 is sandwiched between the intermediate film 23 and the second film 22 (ventilation gap 41), the adhesion of the check valve 40 when the ventilation is shut off can be further enhanced.

In the check valve 40, since the intermediate film 23 and the second film 22 which become the ventilation gap 41 are intermittently joined by the auxiliary seal 34, the ventilation possibility is ensured at each interval. , Each film 22, 23
Can be maintained alongside each other, and the check valve 4
Stable performance as 0 can be obtained. here,
When the auxiliary seal 34 is provided, it is necessary to prevent the auxiliary seal 34 from being joined to the first film 21, but the auxiliary film 34 is not sealed to the first film 21. This can be dealt with by performing it in a step prior to the sealing.

In the first embodiment, the blocking agent 42 is applied to the second film 22 so that it is sandwiched when the intermediate film 23 is stacked. However, it is applied to the intermediate film 23 side. You can leave it. Alternatively, a tape-shaped blocking agent 42 may be sandwiched when the two films 22 and 23 are stacked. Further, the fusion preventing layer 4
3 is not limited to printing on the intermediate film 23, but may be printed on the second film 22 side, or may be continuous coating, sandwiching a tape-like object, etc. without being limited to printing.

FIG. 7 shows a second embodiment of the present invention. This embodiment is the same as the air bubble bag 1 of the first embodiment.
No. 0 is manufactured, and the manufacturing method is different, and accordingly, the arrangement of the fusion preventing layer is different. That is, in the first embodiment, first, the second film 22 and the intermediate film 23 are joined by the auxiliary seal 34, and then, when the first film 21 is joined to the films 22 and 23, the base end seal is formed. In order to prevent 33 from reaching the second seal 22, a fusion preventing layer 43 was provided between the second film 22 and the intermediate film 23.

However, in the present embodiment, first, the first film 21 and the intermediate film 23 are joined by the base end seal 33, and then, when the second film 22 is joined to these films 21, 23, it is assisted. The seal 34 is the first seal 21.
In order not to reach the end, the fusion preventing layer 43 is omitted and the fusion preventing layer 44 is provided between the first film 21 and the intermediate film 23. The anti-fusing layer 44 should be effective at the corresponding portion of the auxiliary seal 34, and on the other hand, it should not hinder the joining of the first film 21 and the other films 22 and 23 in the partition seal 32. Each partition seal 32 on the surface of the intermediate film 23
It is formed in the rectangular area of the portion between (see FIG. 3).

The air bubble bag 10 of this embodiment as described above.
Is manufactured by the process as shown in FIG. First, as shown in FIG. 7 (A), the first film 21 is pulled out from the original fabric roll or the like, and the intermediate film 23 pulled out from another original fabric roll or the like is stacked on the back surface thereof. Before overlapping, the fusion preventing layer 44 is printed on the surface of the intermediate film 23 at predetermined intervals. After stacking these films 21 and 23, they are introduced to a heat sealing drum or the like to form a base end seal 33, and the films 21 and 23 are joined.

Next, as shown in FIG. 7B, the second film 22 drawn from the original roll or the like is placed on the back surface of the first film 21 to which the intermediate film 23 is joined.
Before overlapping, the blocking agent 42 is continuously applied to the surface of the second film 22. Then, these are guided to a heat seal drum or the like, and the tip seal 31 and the partition seal 3 are introduced.
2, the auxiliary seal 34 and the air passage seal 35 are formed, the films 21 to 23 are joined, and the air chamber 12 and the air passage 13 are formed. At this time, the feed phases of the films 21 to 23 are adjusted so that the partition seal 32 is located between the fusion preventing layers 44. In this second embodiment, the fusion preventing layer 4
4 may not be continuously performed, and the position of the partition seal 32 may be specified, which may be more complicated than the manufacturing method of the first embodiment.

After the air chamber 12 and the air passage 13 are formed, each of the films 12 to 23 is cut into a predetermined length, and one end of the air passage 13 is closed and air is injected from the other end.
The injected air 1 is filled in the air chambers 12 from the air passage 13 through the check valve 40 and expands the air chambers 12 to form the bubbles 11 (see FIG. 2). The air 1 in the air chamber 12 does not return to the ventilation passage 13 or the outside again by the check valve 40, and the bubble 11 is maintained even if the injection of the air 1 is stopped. With these, the air bubble bag 10 having a large number of bubbles 11 is manufactured.

According to this embodiment, the air bubble bag 10 similar to that of the first embodiment can be manufactured by a different procedure, and the same effect can be obtained. The anti-fusing layer 44 is not limited to being printed on the intermediate film 23, and may be printed on the first film 21 side, or is not limited to printing and may be applied, sandwiching a tape-like object, or the like. Good. In addition, the modifications and the like described in the first embodiment can also be applied to this embodiment.

FIG. 8 shows a third embodiment of the present invention. While the heat sealing process is performed twice in the first and second embodiments, the present embodiment is performed in one sealing process. Therefore, in this embodiment, in addition to the basic configurations of the films 21 to 23 and the seals 31 to 35 similar to the first embodiment, the fusion preventing layer 43 and the second embodiment similar to the first embodiment are used. And a fusion preventing layer 44 similar to the above.

The air bubble bag 10 of this embodiment as described above.
Is manufactured by the process as shown in FIG. That is, the first film 21, the intermediate film 23, and the second film 22 are respectively pulled out from the original roll or the like, and stacked on top of each other. Before overlapping, the fusion preventing layer 44 is printed on the front surface of the intermediate film 23 at a predetermined interval, and the fusion preventing layer 43 is continuously printed on the back surface. After stacking each of these films 21 to 23, lead them to a heat sealing drum,
The seals 31 to 35 are collectively formed, and each film 21
23 to 23, the air chamber 12 and the air passage 13 are joined together.
To form. At this time, the partition seal 32 is attached to the fusion preventing layer 44.
The auxiliary seal 34 and the fusion preventing layer 44.
The feed phases of the films 21 to 23 are adjusted so as to come inside.

After the air chamber 12 and the air passage 13 are formed, each of the films 12 to 23 is cut into a predetermined length, and one end of the air passage 13 is closed and air is injected from the other end.
The injected air 1 is filled in the air chambers 12 from the air passage 13 through the check valve 40 and expands the air chambers 12 to form the bubbles 11 (see FIG. 2). The air 1 in the air chamber 12 does not return to the ventilation passage 13 or the outside again by the check valve 40, and the bubble 11 is maintained even if the injection of the air 1 is stopped. With these, the air bubble bag 10 having a large number of bubbles 11 is manufactured.

According to this embodiment as described above, the air bubble bag 10 similar to that of the first embodiment or the second embodiment can be manufactured with one heat sealing, and the same effect can be obtained. it can. The modifications and the like described in the first embodiment or the second embodiment can also be applied to this embodiment.

A fourth embodiment of the present invention is shown in FIGS. 9 and 10. 10 (S3) and (S4),
FIG. 10 shows S3 cross section and S4 cross section of FIG. 9, respectively. In each of the first to third embodiments, the air passage 13 is formed outside the compartment of the air chamber 12 (on the side opposite to the tip seal 31 of the base end seal 33) by the air passage seal 35. On the other hand, in this embodiment, the air chambers 12 are formed over the entire widths of the first and second films 21 and 22, and the air passages 13 are formed in the compartments that become the air chambers 12.
Is provided.

The partition seal 32 is used for each film 2
From one edge of 1 and 22 (position of the tip seal 31),
It is extended to the other edge (the position where the air passage seal 35 is formed in each of the above embodiments). And the partition seal 32
Joins the first and second films 21 and 22 between the tip seal 31 and the position where the intermediate film 23 is sandwiched, and joins the films 21 to 23 together on the tip seal 31 side of the intermediate film 23. It is supposed to do.

On the other hand, the partition seal 32 is the intermediate film 2
The first film 21 and the intermediate film 23 are bonded to each other and the intermediate film 23 and the second film 22 are not bonded to each other on the side of the base end seal 33 of 3 (the portion which becomes the ventilation passage 13). In addition, in order to prevent the bonding of the films 22 and 23 in this portion, the intermediate film 23 is optionally
A fusion preventing layer 43 is formed on the back surface.

By these seals 31 to 33, an air chamber 12 is formed between the films 21 to 23, and the air chamber 12 is formed on the side of the first film 21 where the intermediate film 23 is present. It And the intermediate film 23
On the lower surface side of the intermediate film 23 and the second film 22
The air passage 13 is formed along the base end seal 33, which is communicated with the partition seals 32 by sequentially joining the partition seals 32.

Then, the ventilation gap 4 which connects the air chamber 12 and the ventilation path 13 by the other portion on the lower surface side of the intermediate film 23.
1 is formed, and the blocking agent 4 is provided in the ventilation gap 41.
2 is sandwiched, and an auxiliary seal 34 is formed. In addition, each film 21 of the auxiliary seal 34 portion,
A fusion preventing layer 44 is formed on the surface of the intermediate film 23, if necessary, in order to prevent the joining of 23.

The air bubble bag 10 of this embodiment as described above.
The film may be manufactured from a continuous film by the same process as the manufacturing method of any one of the first to third embodiments. According to the present embodiment as described above, the same effects as those of the above-described embodiments can be obtained, and as a unique effect, first, the air passage seal 35 can be omitted, the sealing process can be simplified, and the second In addition, since a dedicated area for the air passage 13 is not required, the bubble 11 can be formed over the entire width of the first and second films 21 and 22, and even if the same film 21 and 22 is used, it functions as a cushion. You can expand the area to do.

FIG. 11 and FIG. 12 show a fifth embodiment of the present invention. Note that FIG. 12 shows the S6 cross section of FIG. 11 is the same as that of FIG. 10 (S3), and the S7 section of FIG. 11 is the same as that of FIG.
It is the same as (S4). In this embodiment, similarly to the fourth embodiment, the air chambers 12 are formed over the entire widths of the first and second films 21 and 22, and the air passages 13 are provided in the compartments that become the air chambers 12. It is a thing. However, in the fourth embodiment, all partition seals 32 are attached to each film 2.
Although the partition seals 32A are formed over the entire width of Nos. 1 and 22 in this embodiment, the partition seals 32A provided at predetermined intervals extend over the entire width, but the other partition seals 32B between them do not reach the base end seal 33, Has been formed.

In this embodiment as described above, the air chambers 12 adjacent to each other with the partition seal 32B in between are communicated with each other through the portion 32C where the partition seal 32B is interrupted, and during this time, the internal air flows through each other. It is possible.
Therefore, according to the present embodiment, the same effects as those of the fourth embodiment can be obtained and, as a unique effect, firstly,
When used as a cushion, even if a strong pressure is applied to a part of the air chambers 12 (bubbles 11), the internal air of the air chambers 12 moves to the adjacent air chambers 12 and may be ruptured due to excessive internal pressure. Secondly, it can be avoided,
The one that affects the ventilation passage 13 is the partition seal 3 that covers the entire width.
It is only 2A, and when the anti-fusion layer 43 is provided, only this portion is required, and therefore the material can be saved by providing it intermittently.

FIG. 13 shows a sixth embodiment of the present invention. This embodiment basically has the same basic structure as that of any of the first to fifth embodiments, and the partition seal 32D jointly joins all the seals 21 to 23 at a predetermined interval to provide ventilation. The path 13 is formed so as to be partitioned at predetermined intervals. In this embodiment, first, a continuous film is formed as shown in FIG. 13 (A) and then cut along the partition seal 32D,
As shown in FIG. 13B, the ventilation passage 13 has one end opened and the other end closed. Therefore, according to the present embodiment, in addition to the same effects as those of the above-described respective embodiments, it is possible to obtain the effect that the work of closing the opposite side of the ventilation passage 13 for injecting air can be omitted.

FIG. 14 shows a seventh embodiment of the present invention. In this embodiment, each of the above-mentioned embodiments is used in each of the films 21 and
The air passage 13 was formed along one edge of the air chamber 2, while the air passage 13 was formed in the center and the air chambers 12 were formed on both sides of the air passage 13.
Are formed.

Specifically, in the air bubble bag 10 of this embodiment, the tip seals 31 are formed along both side edges of the first and second films 21 and 22, and the center of the intermediate seal 23 sandwiched in the center. Is bonded to the first film 21 by the base end seal 33, and both side edges of the intermediate film 23 are brought close to the second film 22 to form the check valve 40. Then, the air chamber 12 is formed by partitioning the films 21 and 22 with a partition seal 32 that covers the entire width. At this time, the auxiliary seal 34, the blocking agent 42, and the fusion preventing layers 43 and 44 as in each of the above-described embodiments may be appropriately provided.

As a result, a pair of air chambers 12 is formed on the upper side of the intermediate film 23 or both side edges of the films 21 and 22, and a ventilation path 13 is formed on the lower side of the intermediate film 23. 12 is communicated with the ventilation passage 13 via the check valve 40. According to the present embodiment as described above, the same effects as those of the above embodiments can be obtained, and the air bubble bag 10 having the bubbles 11 of various forms or the air bubble bag 10 having the bubbles 11 in a wide area is formed. You can

An eighth embodiment of the present invention is shown in FIGS. 15 and 16. In the present embodiment, while the air gap 41 is formed between the second film 22 and the one intermediate film 23 in each of the above embodiments, the two intermediate films 2 are used.
The ventilation gap 41 is formed between these by using 3A and 23B. In the air bubble bag 10 of the present embodiment, the air chamber 12, the air passage 13, the first and second films 21, 22, the tip seal 31, the partition seal 32, the air passage seal 35, etc. forming the bubble 11 are the first This embodiment is similar to the embodiment, and the description is omitted here for simplification, and only different points will be described below.

The first intermediate film 23A is joined to the first film 21 on the base end side by the base end seal 33A, and the second intermediate film 23B is attached on the base end side to the second film 22 by the base end seal 33B. It is joined. The respective base end seals 33A and 33B are basically arranged in the same manner as the base end seal 33 of each of the above-mentioned embodiments, and each of the films 21 and 3 is provided.
The intermediate films 33A, 33B are opposed to each other so that the intermediate films 33A, 33B can be prevented from being fused and the ventilation path 13 can be secured between the intermediate films 33A, 33B even when the 3A, 33B, 22 are stacked and collectively sealed. The fusion preventing layer 43 similar to that in each of the embodiments is formed on any surface.

The tip ends of the two intermediate films 23A and 23B are along each other, and the air gap 4 is provided by the gap between them.
1 is formed. The ventilation gap 41 is filled with a blocking agent 42 similar to that in each of the above-mentioned embodiments to enhance airtightness. Further, the two films 23A and 23B forming the ventilation gap 41 are joined by the auxiliary seal 34 similar to that in each of the above-mentioned embodiments, and are kept close to each other.

The surface of the first intermediate film 23A, which is the back surface of the auxiliary seal 34, faces the first film 21, and the second film 2 of the second intermediate film 23B.
On the surface facing 2 are the films 2 facing each other.
In order to prevent fusion between No. 1 and 22, and to secure the air chamber 12 between each of them, the fusion preventing layer 4 similar to each of the above-mentioned embodiments.
4A and 44B are formed. These may be provided on the surfaces of the first and second films 21 and 22.

In this embodiment, four films 21, 23A, 23B and 22 are superposed and
By forming the seals 31 to 35 collectively, the air chamber 1
2 and the ventilation passage 13 are formed, the air 1 from the ventilation passage 13 is filled into the air chamber 12 through the ventilation gap 41, and the backflow is prevented by the check valve 40 by the two films 23A and 23B. Bubbles 11 are formed as in the example. In addition, in this embodiment, the same effect as that of the first embodiment can be obtained, and the check valve 40, especially the ventilation gap 41 is formed by the two intermediate films 23A and 23B, and the first and second exterior films are provided. This can be done regardless of the second films 21 and 22.

That is, polyolefin having good adhesion is used for each of the intermediate films 23A and 23B, and the first and second films 21 and 22 are made of a stretched film-based laminated film having excellent strength and appearance. A material suitable for the above can be appropriately selected. Furthermore, ventilation gap 4
Since the intermediate films 23A and 23B of the same material face each other in No. 1, heat shrinkage and the like at the time of sealing become uniform, and it is possible to prevent wrinkles and the like from occurring due to the difference in shrinkage rate.

The two intermediate films 23A and 23B
, And an auxiliary seal 34 is applied, and the auxiliary seal 34 is sandwiched between the first and second films 21 and 22, and the other seals 31 to 31 are inserted.
3, 35 may be formed, and in this case, the fusion preventing layers 44A, 44B for preventing fusion between the first and second films 21, 22 and the respective intermediate films 23A, 23B may be omitted. In addition, the intermediate films 23A and 23B are arranged along the first and second films 21 and 22, respectively, and the base end seal 3 is formed.
3A and 33B may be applied in advance, and these may be overlapped with each other to form other seals 31, 32, 34 and 35. In this case, the fusion preventing layer 43 may be omitted.

17 to 19 show a ninth embodiment of the present invention. In the present embodiment, the check valve is formed by sandwiching the intermediate film 23 on the base end side of the partition seal 32 in each of the above embodiments, whereas the intermediate film 23 is placed closer to the base end side than the tip end side of the partition seal 32. That is, it is arranged near the center of the air chamber 12. In the air bubble bag 10 of the present embodiment, the air chamber 12 forming the bubble 11, the ventilation path 13, the first and second films 21 and 22, the tip seal 31,
The partition seal 32, the base end seal 33, the air passage seal 35, and the like are the same as those in the first embodiment, and the description thereof is omitted here for simplification, and only the different points will be described below.

In the air bubble bag 10 of this embodiment, tip seals 31 are formed along both side edges of the first and second films 21 and 22, and one end of the intermediate film 23 is attached to the second film 22. The air passage seal 35 and the auxiliary seal 34 are joined together. A blocking agent 42 is provided between the back surface of the other end of the intermediate film 23 and the second film 22.
Further, a fusion preventing layer 43 is formed on the surfaces of the intermediate film 23 and the second film 22 which face each other between the air passage seal 35 and the blocking agent 42 of the intermediate film 23. . The check valve 40 is formed by the intermediate film 23.
In addition, a partition seal 3 covering the entire width of each film 21, 22
The air chamber 12 is formed by partitioning into two.

As a result, the air chamber 12 extends from the upper side of the intermediate film 23 to the side edges of the films 21 and 22.
Is formed, the ventilation passage 13 is formed below the intermediate film 23, and each air chamber 12 is connected to the ventilation passage 13 via the check valve 40.
Will be connected to. According to this embodiment as well, the same effects as those of the above-mentioned embodiments can be obtained, and the air bubble bag 1 having the bubbles 11 of various forms is obtained.
It is possible to form the air bubble bag 10 having the bubbles 11 in 0 or a wide area. Further, the check valve 40 is
Since the shape of the bubble 11 is formed closer to the center in the stable width direction, the performance of the check valve 40 is improved.

The present invention is not limited to the above-mentioned embodiments, and modifications within the range in which the object of the present invention can be achieved are included in the present invention. The present invention is modified as follows. Etc. are also included. That is, in each of the above-described embodiments, the auxiliary seal 34 is provided to prevent the ventilation gap 41 of the check valve 40 from being excessively expanded, but the number and length of the auxiliary seals 34 may be appropriately selected. The seal is not limited to a continuous seal, and may be one in which point seals are arranged. The auxiliary seal 34 may be omitted when the air gap 12 (the bubble 11) is narrow in width or when it is difficult for the ventilation gap 41 to expand excessively.

Further, the blocking agent 42 between the intermediate film 23 and the second film 22 (ventilation gap 41) is not essential, and the films 22 and 23 are made of a material having a high adhesiveness between the surfaces, for example, soft PVC. The blocking agent 42 may be omitted as long as sufficient airtight adhesion can be obtained. Furthermore, the fusion preventing layer 4
The positions and shapes of 3, 44, etc. may be appropriately set, and the films 21 to 23 to be formed are also arbitrary and may be omitted depending on the manufacturing procedure.

On the other hand, in each of the above-described embodiments, the air passage 13 is provided at the base end side of each air chamber 12, and the air is collectively injected into each air chamber 12 from the air passage 13. Is not essential to the present invention, and may be omitted as in the modification shown in FIG. In such a case, the air 1 may be injected by sequentially connecting nozzles to each air chamber 12 or connecting a plurality of nozzles simultaneously connected to the check valve 40 portion of each air chamber 12. Good.

Further, the material of each of the films 21 to 23 may be appropriately selected from those described in the first embodiment,
The thickness, color and presence / absence of transparency may be appropriately selected. The size and shape of the air bubble bag 10 and the thickness and size of the bubble 11 may be appropriately selected for implementation.

In the ninth embodiment, the intermediate film 23 is provided near the center of the air chamber 12, but the invention is not limited to this.
As in the modification shown in FIG. 21, the intermediate film 23 is arranged on the proximal end side of the partition seal 32, and one end of the intermediate film 23 is attached to the second film 22 and the first film 21.
You may seal with it.

Further, the order of the blocking agent applying step, the fusion preventing layer forming step, and the sealing step of each part in the above manufacturing method may be changed, and in some cases, the fusion preventing layer forming step precedes the manufacturing method. It may be pretreated. Further, the fusion prevention is mainly for securing the formation of the air passage, and the air passage is sealed in the final step where the partition seal and the like is performed by sandwiching another non-melting material, or the sandwiching of the high melting point film is left as it is. It may be.

[0093]

As described above, according to the air bubble bag and the method of manufacturing the same of the present invention, another film is sandwiched between two films forming an air chamber to be a bubble,
Since this film is used as a check valve, the structure and the continuous manufacturing process can be simplified and efficient, and good cushioning performance can be obtained. Furthermore, by forming the ventilation path, it is possible to collectively inject air into each air chamber, and it is possible to increase the utilization rate.

By forming the fusion preventing layer, it is possible to seal another film that overlaps the same portion while avoiding unnecessary joining to the portion that becomes the ventilation path, and the sealing work is integrated. Therefore, the manufacturing efficiency can be further improved. Furthermore, by sandwiching a blocking agent in the ventilation gap that serves as a check valve, it is possible to further improve the airtightness at the time of blocking the ventilation, and by providing an auxiliary seal, it is possible to prevent excessive expansion of the ventilation gap, Good performance as a check valve can be ensured.

Further, according to the method of manufacturing the air bubble bag of the present invention, the continuous check valve structure is adopted instead of the individual check valves, so that the position control with the check valve is substantially unnecessary, and The size (diameter) of the air bubble bag can also be changed freely.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall appearance of a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing the structure of the first embodiment.

FIG. 3 is a plan view showing the structure of the first embodiment.

4 is a cross-sectional view showing the S1 cross section and the S2 cross section of FIG. 3;

FIG. 5 is a schematic view showing an air bubble bag manufacturing apparatus according to the first embodiment of the present invention.

FIG. 6 is an exploded perspective view showing the manufacturing procedure of the first embodiment.

FIG. 7 is an exploded perspective view showing a manufacturing procedure of the second embodiment.

FIG. 8 is an exploded perspective view showing a manufacturing procedure of the third embodiment.

FIG. 9 is a plan view showing a fourth embodiment of the present invention.

10 is a cross-sectional view showing the S3 cross section and the S4 cross section of FIG. 9;

FIG. 11 is a plan view showing a fifth embodiment of the present invention.

FIG. 12 is a cross-sectional view showing the S6 cross section of FIG. 11;

FIG. 13 is a schematic diagram showing a sixth embodiment of the present invention.

FIG. 14 is a schematic diagram showing a seventh embodiment of the present invention.

FIG. 15 is a plan view showing an eighth embodiment of the present invention.

16 is a sectional view showing the S8 cross section and the S9 cross section of FIG. 15;

FIG. 17 is a plan view showing a ninth embodiment of the present invention.

FIG. 18 is a cross-sectional view showing a state before filling the air chamber with air in FIG. 17.

FIG. 19 is a cross-sectional view showing the S10 cross section and the S11 cross section of FIG. 17;

FIG. 20 is a sectional view showing a modified example of the present invention.

FIG. 21 is a perspective view showing a modified example of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Air 2 Internal pressure of air chamber 10 Air bubble bag 11 Bubble 12 Air chamber 13 Vent passage 21 First film 22 Second film 23 Intermediate film 23A, 23B First intermediate film and second intermediate film 31 Tip seal 32, 32A, 32B, 32D Partition seal 33, 33A, 33B Base end seal 34 Auxiliary seal 35 Ventilation passage seal 40 Check valve 41 Ventilation gap 42 Blocking agent 43, 44, 44A, 44B Fusion prevention layer 51 First original roll 53 Second Original roll 55 First heat seal drum 56 Third original roll 57 Second heat seal drum

Claims (16)

[Claims] 1. A first and a second film which are superposed on each other, a tip seal which is continuous in a predetermined direction for joining the first and the second film to each other, and the first and the second film which are mutually connected. At least a pair of continuous partition seals which are joined together at the front end side with the front end seal, and an intermediate film which is sandwiched on the base end side of the front end seals of the respective partition seals and which is continuous along the front end seal, A front end seal that joins the intermediate film and the first film and is continuous along the front end seal, the front end seal between the first and second films, each partition seal, and the base end. An air bubble bag, wherein an air chamber in which air is enclosed is formed by a space surrounded by a seal. 2. The air bubble bag according to claim 1, wherein an air passage extending in the continuous direction of each of the films is formed between the first and second films along the base end seal. The air bubble bag is characterized in that the chamber and the air passage are communicated with each other through a gap between a portion of the intermediate film closer to the tip seal than the base end seal and the second film. 3. The air bubble bag according to claim 1, wherein the intermediate film is a first intermediate film joined to the first film by the base seal and a second intermediate film joined to the second film. It is composed of two sheets of film, between the first and second film is formed a ventilation path extending in the continuous direction of each film along the proximal seal, the air chamber and the ventilation path An air bubble bag, wherein the first intermediate film and the second intermediate film are communicated with each other through a gap between portions of the first intermediate film and the second intermediate film that face each other on the tip seal side of the base end seal. 4. The air bubble bag according to claim 2 or 3, wherein the first and second films are joined to the side of the base seal opposite to the air chamber along the base seal. An air bubble bag, wherein an air passage seal is formed, and the air passage is formed by a space sandwiched between the air passage seal and the base end seal between the first and second films. 5. The air bubble bag according to claim 2, wherein the base end seal collectively joins the first and second films and the intermediate film, and the partition seal is near the base end seal. Is to join the first film and the intermediate film, the ventilation path is formed by the space along the proximal seal between the second film and the intermediate film. And an air bubble bag. 6. The air bubble bag according to claim 3, wherein the base end seal collectively joins the first and second films, the first intermediate film and the second intermediate film, and The partition seal is configured to join the first film, the first intermediate film, and the second film and the second intermediate film in the vicinity of the base end seal, and the ventilation path is the first intermediate film. An air bubble bag formed by a space along the base end seal between the air bag and the second intermediate film. 7. The air bubble bag according to claim 5 or 6, wherein between the two films forming the ventilation passage, the surfaces of the two films facing each other are provided in a region corresponding to the partition seal. An air bubble bag, comprising a fusion preventing layer for preventing fusion. 8. A first and a second film which are superposed on each other, a tip seal which is continuous in a predetermined direction for joining the first and the second film to each other, and the first and the second film which are mutually connected. At least a pair of continuous partition seals which are joined together at the front end side with the front end seal, and an intermediate film which is sandwiched on the base end side of the front end seals of the respective partition seals and which is continuous along the front end seal, A front end seal that joins the intermediate film and the second film and is continuous along the front end seal, the front end seal between each of the first and second films, each partition seal, and the base end. An air chamber in which air is enclosed is formed by the space surrounded by the seal, and the air chamber is formed between the first and second films by the base end seal. Along the air passage formed by extending in the continuous direction of each film through the gap between the second film and the portion of the intermediate film closer to the tip seal than the base seal. Air bubble bag characterized by that. 9. The air bubble bag according to claim 8, wherein the intermediate film is formed near the center of the tip seal and the base seal of the air chamber. 10. The air bubble bag according to any one of claims 1 to 9, wherein the first and second films are continuous in a predetermined direction, and the tip seal is a continuous direction of the films. An air bubble bag, wherein a plurality of the partition seals are formed along a peripheral edge of the film at predetermined intervals in a width direction of the film. 11. The air bubble bag according to any one of claims 1 to 10, wherein a ventilation gap is formed between a portion of the intermediate film closer to the tip seal than the base seal and the portion. An air bubble bag having a blocking agent sandwiched between the second film and another intermediate film and continuous along the tip seal. 12. The air bubble bag according to any one of claims 1 to 11, wherein a ventilation gap is formed between a portion of the intermediate film closer to the tip seal than the base seal and the portion. An air bubble bag having a linear auxiliary seal that joins the second film or another intermediate film to each other at a portion in a direction along the tip seal. 13. The air bubble bag according to claim 12, wherein between the two films forming the air chamber, the surfaces of the films facing each other are fused to each other in a region corresponding to the auxiliary seal. An air bubble bag, which is characterized in that a fusion preventing layer for preventing it is formed. 14. A method of manufacturing an air bubble bag by an air bubble bag manufacturing apparatus, comprising a step of continuously supplying a second film, and an intermediate film to the second film in a flow direction of the second film. And a step of continuously forming a linear check valve auxiliary seal in the transverse direction intersecting the flow direction on the second film and the intermediate film which are superposed on each other. When,
A step of continuously supplying and stacking the first film along the flow direction on the second film and the intermediate film, and a sealing process for forming an independent air bubble chamber in each of these films. A method of manufacturing an air bubble bag, comprising: a sealing step to be performed; and a sealing step for forming an air introduction air passage. 15. The method for manufacturing an air bubble bag according to claim 14, wherein the air introduction air passage is connected between the second film and the intermediate film in the flow direction so as to communicate therewith. And a fusion preventing layer forming step for preventing fusion between surfaces of the second film and the intermediate film facing each other with the ventilation passage interposed therebetween in the ventilation passage region. And a method of manufacturing an air bubble bag. 16. The method of manufacturing an air bubble bag according to claim 14 or 15, wherein blocking is performed in the check valve auxiliary seal forming portion between the second film and the intermediate film along the flow direction. A method of manufacturing an air bubble bag, comprising a step of forming an agent layer.