JP3456382B2 - Method and apparatus for manufacturing branched pouch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a branch type pouch such as a pouch having a branched injection port and a spout or a pouch having a branched small chamber.

[0002]

2. Description of the Related Art Conventionally, as a pouch for filling and sealing a liquid or the like, there are various forms such as a flat bag, a self-supporting bag and a gusset bag.
In order to fill the contents in these bags, it is advantageous to have a large opening for the filling port, and conversely, for pouring the contents from the bags, it is advantageous that the spout has a narrow outlet so that it does not drop. Is. For example, in the case of a flat bag or a gusset bag having gussets on the side edges, the contents can be filled from the unsealed portion of the bottom, and the bottom can be heat-sealed after filling, so that it can be integrated with the top or separately. A thin body spout can be formed. Therefore, in this case, it is possible to satisfy both the filling property and the pourability. However, in the case of a self-supporting bag having a bottom wall at the bottom, it is not possible to fill the contents from the bottom, so there is no choice but to fill from the unsealed opening at the top, so if a small spout is provided It is extremely disadvantageous. Therefore, in the case of a self-supporting bag, either the filling property or the pourability must be sacrificed, and in general, the pourability is sacrificed without providing a thin spout for improving the filling property. Therefore, for example, in the case of a self-supporting bag filled with a refill detergent or the like, it is difficult to pour it into a refill bottle without causing dripping or spilling, and it is difficult to handle. Further, although a flat bag or the like can be provided with a thin spout as described above, it does not have self-sustaining property, and thus has a drawback of lacking in storability and displayability.

On the other hand, recently, as a container for medical infusion solution or seasoning solution, a pouch formed of a laminated plastic film is often used. In the case of these contents, the contents components are stored in a mixed state. In some cases, mixing at the time of use may be advantageous in that reaction and deterioration over time can be avoided. Therefore, for example, a multi-chamber pouch has been proposed in which the content components such as physiological saline and powdered medicine are filled in separate chambers so that they can be mixed at the time of use. Separation partition walls are formed by sandwiching the opposing portions of the back wall with clamps or by closely adhering them by weak heat sealing or the like. Welding with weak heat seal, etc. is because the opposite parts of the front wall and the back wall are heat sealed, so when the bag is pressed at the distribution stage, the pressure is directly applied to the heat seal part via the contents. Therefore, the weak heat seal portion is easily peeled off, and the contents are mixed. Therefore, in order to prevent easy peeling at the distribution stage, it is necessary to use clamps or strong adhesion,
With conventional pouches, it was not possible to form a separating partition wall that satisfied the contradictory requirements of easy peeling during use but not easy peeling at the distribution stage.

On the other hand, in the case of these contents, a packaging material having an excellent gas barrier property is generally required, but the required degree of the shielding property differs depending on the contents to be mixed. A high gas barrier property and a high light barrier property are required, but when the other contents do not require such a high gas barrier property and light barrier property, the entire pouch has a high gas barrier property in order to protect a small amount of contents. Therefore, the pouch needs to be made of a packaging material having a high light barrier property, resulting in a high cost of the pouch.

[0005]

In view of the above situation, the present inventors have formed a filling port and a pouring port separately, and are capable of satisfying both filling property and pouring property, and a self-supporting bag. A branching pouch of a completely new type has been previously proposed, which can form a branching chamber having a peeling portion that can simultaneously satisfy the contradictory requirements of being easily peeled off during use but not easily peeled off at the distribution stage.

The present invention is capable of continuously and efficiently producing a novel branched pouch such as the above proposed pouch in which the inlet and the outlet are branched, or a pouch having a branched small chamber. Accordingly, it is an object of the present invention to provide a method and an apparatus for manufacturing a branched pouch in which the branch chamber can be continuously laminated with a barrier packaging material individually according to the conditions of the contents.

[0007]

A method for manufacturing a branched pouch according to the present invention which solves the above-mentioned problems, is a method in which a pouch is conveyed from a long body wall material at a right angle to the body wall material conveying direction and the vertical direction of the pouch. In a method for manufacturing a pouch that is continuously and automatically manufactured, at least a part of the body wall material on one side is first bent in the ground direction along the transport direction and at a predetermined distance from the first bent position. By performing the second bending again in the upward direction, the inside of the pouch is formed by the pouch body chamber and the side wall material that reaches the first bending position from the first bending position through the second bending position. And a second branch chamber formed in a portion extending from the first bending position to the top side.

A second bent position of the first branch chamber is cut and opened to form the first branch chamber at a filling port, and a spout having a width narrower than a pouch width is provided at the top of the second branch chamber. By forming and using the second branch chamber as the spout, it is possible to easily obtain a branched pouch in which the filling port and the spout are branched.
Then, by including the step of folding back the spout portion to the pouch body chamber side and folding the filling mouth portion to the top side, a branching pouch in which the filling mouth portion is located on the top side is obtained, and the contents are filled as it is. It is desirable that it can be supplied to the apparatus and that the peeling pressure does not act on the spout after filling. Further, it is desirable to have an ear-stopping step of spotting the spout portion folded back to the pouch body chamber side to the body wall side edge portion so as not to rise up carelessly. It is also possible to use the second branch chamber as the filling port and the first branch chamber as the spout.

By sealing the base of the second branching chamber in the vicinity of the first bending position of the second branching chamber and forming the second branching chamber in an auxiliary storage chamber separated from the pouch body chamber, the pouch is formed. A branching pouch that can completely store separate contents in the main chamber and the sub chamber can be obtained. By making the seal an easily openable seal, a pouch can be obtained in which the seal can be easily peeled off at the time of use and the contents can be mixed and poured out in the pouch. When the contents separately stored in the pouch body chamber and the sub chamber are used as a container for storing the contents that do not need to be mixed in the pouch, the seal may be a strong adhesive seal.

[0010] By separately covering the sub-accommodation chamber or the pouch body chamber with a barrier film, each chamber in which the contents are accommodated is covered with a barrier film having a barrier property required for the contents. Is possible and desirable. Further, the multiple storage chamber is not limited to one, but a plurality of branch chambers may be formed to form a plurality of sub-storage chambers as needed. Further, it is desirable to simultaneously manufacture a plurality of branched pouches from the body wall material in order to improve productivity.

The branching pouch manufacturing apparatus of the present invention for carrying out the above-mentioned branching pouch manufacturing method is a heat seal press for at least the edge of the trunk wall facing the conveying path of the trunk wall material made of a long plastic film. A pouch automatic manufacturing apparatus for automatically manufacturing a pouch with a cutter for separating the formed pouch from a long film, in a state where the conveying direction of the body wall material and the pouch top-bottom direction are perpendicular to each other from the body wall material, At least a part of the body wall material on one side is first bent in the ground direction along the conveying direction in the body wall material conveying path on the upstream side of the body wall side edge heat seal press, and the first bending position It is characterized in that bending means for performing the second bending again is arranged at a predetermined distance from the upper side again.

By disposing a heat-sealing press for forming a spout which forms a spout on the ceiling side of the first bending position on the downstream side of the folding means, the spout section is formed in the second branch chamber. To be formed. Then, a punch for cutting out and removing the outside of the heat-sealed portion of the spout formed by the heat pressing device was arranged on the downstream side of the spout forming heat seal press device to form a protruding spout. A means for folding back the spout portion to the pouch body chamber side was provided so that the spout portion could be folded back to the pouch body chamber side. Further, the first of the second branch chamber
A seal press device for sealing the base of the second branch chamber in the vicinity of the bending position was provided to enable the base of the second branch chamber to be sealed. It is desirable that the adhesive strength of the seal can be controlled by controlling the temperature and pressure of the seal press device. In the method and apparatus for manufacturing a branched pouch of the present invention, the branched pouch is particularly suitable for manufacturing a branched self-supporting pouch.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. First, the branched pouch manufactured in this embodiment will be described with reference to FIG. The branched pouch of the present embodiment is configured as a self-supporting pouch, and the self-supporting pouch 1 is provided.
Is a spout 4 formed by folding the body wall 2 or the body wall 3.
It is characterized in that the filling port 5 and the filling port 5 are separately branched at the first bending position 6 so that they can be folded back. Filling port 5
Is formed with the same width as the pouch width, but the spout 4 is
In order to facilitate refilling into a refill bottle or the like, it is formed to have a tapered spout 7. Thereby, the contents can be filled from the filling port that is opened to the full width of the bag, and after the filling, the filling port 8 can be heat-sealed as shown by hatching in FIG. .
In addition, when pouring out the contents, by vertically raising the spout 4 from the state shown in FIG.
As shown in (b-1) and (b-2), the spout 7 is located at the upper part, and the filling port 5 is, on the contrary, in a state in which it is folded to the body wall side. By reversing the self-supporting pouch in this state and inserting a thin spout into the mouth of the refill bottle, refilling can be easily performed without spilling liquid.

The normal state such as the distribution process is shown in FIG. 5 (a-1).
As shown in (a-2), the spout 4 is folded back toward the body wall and the filling port 5 is located at the top. When the body wall is pressed in this state, the inner solution spreads straight to the side of the filling port, and the pressure directly acts on the filling port sealing portion, but the bending of the pouring port portion 4 causes the first pressure. The pressure is relieved at the bent position, the liquid hardly flows into the spout 4, and almost no pressure acts on the spout 7 at the tip thereof. Therefore, even if the spout is sealed with a weak adhesive seal so that it can be easily opened, there is no risk that the spout will open during the distribution process and the internal solution will leak. This action and effect is a major characteristic point resulting from the structure of the branched pouch of the present invention. In particular, when the pouches are laid down in a distribution process and stacked in a cardboard box, etc., even if the heat-sealing portion of the filling port is broken due to a strong pressing force acting on each self-supporting pouch, the pouch is bent. The seal part of the spout that is present is never destroyed, and its action and effect are remarkable. Therefore, in the present embodiment, the spout 7 is sealed by interposing the easy-open seal tape 9 so that the spout can be easily opened at the time of refilling, but of course, the body walls are directly heat-sealed. At the time of use, the spout may be appropriately cut and opened. In FIG. 5, 10 is a bottom wall, 11 is a side wall edge seal portion obtained by heat-sealing both side edges of the body wall, 12 is a bottom wall seal portion, 1
3 is a spout forming seal portion.

1 to 4 show an embodiment of a manufacturing method and a manufacturing apparatus of a branch type self-supporting pouch in which the spout portion and the filling port portion shown in FIG. 5 are branched. In the present embodiment, at least the inner surface forming the self-supporting pouch has thermal adhesiveness, and the outer surface is a film layer having a film layer having non-thermal adhesiveness. Obtain a pair of long body wall materials on the back side, and form two self-supporting pouches in the width direction as the vertical direction of the pouch in which the width direction of the body wall material is formed so that the spouts face each other. An embodiment in which two bags are manufactured simultaneously is shown. The original fabric is unwound at a position not shown and cut by a slitter from the center to be separated into two body wall members 20 and 21. As shown in FIG. Be guided to do. Further, an easily openable seal tape 22 for feeding the outlet along the center of the feeding direction is fed between the body wall materials (FIG. 1).
And FIG. 3 (a)).

As shown in FIG. 3, the two body wall members 20 and 21 become the filling port 5 at a point symmetrical position from the center position by a folding guide which is a folding means arranged on the way of being conveyed. It is gradually folded so as to form the first branch chamber 15 (see FIGS. 3B and 3C). In the meantime, the bottom wall material 23 is unwound from the original fabric and supplied to both ends of the body wall materials 20, 21 in a state of being folded into two pieces. Then, a seal hole 24 is formed at the conveyance position of the bottom wall material, at a position where the bottom wall material overlaps with the body wall side edge seal portion, to penetrate the bottom wall member and spot weld the body wall materials to each other. The punches 25 are arranged, and the seal holes 24 are formed in the bottom wall material in correspondence with the intervals between the body wall side edge seal portions of the self-supporting pouch (FIG. 1).

When the body wall material is completely folded at the first folding position 17 and the second folding position 18, and the first branch chamber 15 and the second branch chamber 16 are formed, the position D--D in FIG. When it reaches, the body wall side edge seal portion 11 is sealed by being sandwiched from above and below by the body wall side edge heat seal press 26 arranged in a pair at the position. The heat seal press has a width in the body wall material feeding direction which is twice as wide as the width of the edge seal portion on the body wall side of the self-supporting pouch shown in FIG. 5, and the body wall material is transported by a distance equal to the width of the self-supporting pouch. It operates intermittently every time it is hit.
Thereby, the body wall side edge seal portions of the self-supporting pouches adjacent to each other in the feeding direction are simultaneously sealed. Regarding the body wall material that is continuously rewound from the original fabric and conveyed, at least at the downstream side from the DD position, the body wall material is intermittently sent by the same width as the pouch width. For that purpose, a dancer roll 38 for adjusting the tension during the transportation of the body wall material is provided. Also, E
At the -E position, a heat seal press 27 for spout sealing
Are arranged vertically, and the spout 7 is easily opened and sealed with the easily openable seal tape 22 interposed therebetween.

Next, at the FF position, the pressing surface is shown in FIG.
A pair of spout forming heat seal presses 28 having the shape of the spout forming seal portion 13 shown in FIG. 2 are arranged, and the wall materials of the second branch chamber 16 are heat-bonded to each other to form a tapered spout portion. . Further, bottom wall heat seal presses 29 are arranged on both sides of the FF position, and at the same time, the bottom wall material is also heat sealed. A die 30 for punching out the outer peripheral edge portion of the spout forming seal portion 13 is arranged at the GG position, and the die is operated to cut and remove a portion other than the spout from the spout forming portion. Two self-supporting pouches are formed with the outlets facing each other.

At the H-H position, a slitter 31 for separating the self-supporting pouches connected at the spout end is arranged so that the cutting edge projects toward the conveying surface, and the side wall material is separated from the center by passing through the position. It As a result, in FIG. 1, the upper pouch row 33 and the lower pouch row 34 are separated. On the downstream side, a folding back guide member group 32 for folding back the spout portion 4 to the body wall side is arranged on the upper side and the lower side opposite to each other, and the second branch chamber 16 (spout portion) is It is folded back to the wall side. Along with that, the first branch chamber 15 (filling port portion) that has been folded back to the body wall side is raised, and the filling port portions face each other by the time the I-I position is reached and the JJ position is reached. Ready to go. In the present embodiment, at the JJ position, the spotting seal press 35 is arranged so that the folded back spouting portion does not rise inadvertently, and the ear portion of the spouting portion is set on the side edge of the body wall. Although the points are lightly marked, the marking step may be omitted. Then, at the KK position, a cutter 36 that cuts the tip of the filling port to open the filling port is arranged, and the filling port is opened by passing through the position. Finally, by cutting the middle of the seal portion on the side wall of the body wall with the cutter 37,
Two branch-type self-supporting pouches 1 in which the spout portion is folded back to the trunk wall side as shown at the left end are sequentially obtained. As described above, according to the present embodiment, the self-supporting pouch with the filling port and the spouting port branched can be automatically and continuously manufactured from the original fabric.

In the above embodiment, the easy-open seal tape 22 is used as a means for easily opening and sealing the spout 7 of the branch type self-supporting pouch 1, but as an alternative means, the unsealing line part of the spout is used. It is also possible to irradiate a laser beam from both outer sides of the pouch to remove a part of the body wall material and perform weakening line processing. In this case, the irradiation processing can be performed in any step, but it is desirable to perform it immediately after the spout sealing is performed in consideration of the positioning of the front and back of the body wall material.

Next, an embodiment of a manufacturing method and a manufacturing apparatus of a multi-chamber branching type self-supporting pouch having branching small chambers as shown in FIG. 6, which is another embodiment of the division type pouch, will be described. The multi-chamber branch pouch of the present embodiment is configured as a self-supporting pouch, the basic structure is the same as the branch self-supporting pouch of the embodiment, the second branch chamber corresponding to the spout of the embodiment is It is a sub-storing chamber 52 that is separated from the pouch body chamber 51, and the first branch chamber is a filling port 55 as in the above embodiment. In the present embodiment, an easily openable seal portion 54 is formed at an inner position slightly away from the primary folding position 53 with the body wall of the second branch chamber, and the auxiliary storage chamber 52 is completely separated from the pouch body chamber. The contents stored in the room are prevented from being mixed carelessly during the distribution process. Reference numeral 59 is a sub-accommodating chamber end opening which also serves as a spout and a filling port for the sub-accommodating chamber.

The multi-chamber branch type self-supporting pouch 50 of this embodiment
Similar to the characteristic point of the above-described embodiment, the feature of (1) is to configure the filling port portion 55 and the spout portion (hereinafter simply referred to as the sub-storage chamber) 52 that also serves as the sub-storage chamber by folding the body wall, and in the distribution stage. As shown in FIG. 6, by folding the sub-storage chamber 52 from the first bending position to the pouch body chamber side, even if the body wall is pressed, the pressure is relieved at the first bending position, The peeling pressure on the seal portion of the storage hardly acts. Therefore, even if the seal of the branch portion of the auxiliary storage chamber is sealed in an easily openable heat seal or in a state where it can be easily peeled off such as pseudo adhesive, the seal does not peel off at the distribution stage and the contents are not mixed carelessly. A multi-chamber branch type self-supporting pouch is obtained. And
In use, when the auxiliary storage chamber is raised and the body wall of the pouch body chamber is pressed in a state of being positioned on the extension of the pouch body chamber, the sub-storage chamber inlet is passed through the content liquid stored in the pouch body chamber. Since a strong peeling pressure corresponding to the applied pressure acts on the easily-openable seal portion 54 of the portion, the contents that are easily peeled off and stored in both chambers are easily mixed in the pouch.

Another characteristic feature of the multi-chamber branch type self-supporting pouch 50 of this embodiment is that the films 56 and 57 having a high barrier property required depending on the contents filled in the auxiliary storage chamber 52. Is individually coated or laminated (simply referred to as coating). For example, if the contents stored in the sub-storage room need to be shielded from outside air, moisture, light, etc., and the contents stored in the pouch body room do not require them, only the sub-storage room can be covered by these barriers. By coating with a highly flexible film, a low-cost multi-chamber branching type self-supporting pouch suitable for filling these contents can be obtained. Further, these films are not completely integrated with the wall material constituting the sub-accommodation chamber wall, but only the peripheral edge is adhered to form a space portion between the film and the wall material.
For example, if the oxygen absorber 58 is stored as shown in (c),
When the wall material is formed of a packaging material with a poor gas barrier property, it is possible to prevent oxidation and deterioration of the contents filled in the auxiliary storage chamber, and to create a space between the wall material and the barrier film. You can use it to store other things.

7 and 8 show one embodiment of the method and apparatus for manufacturing the multi-chamber branch type self-supporting pouch constructed as described above.
Will be described. In this embodiment, the main structure such as the folding means of the body wall is almost the same as that of the above-mentioned embodiment, and therefore only the features that are different from the above-mentioned embodiment will be described. In FIGS. 7 and 8, reference numerals 60 and 61 denote body wall materials,
Similar to the above-described embodiment, the portion forming the first branch chamber (filling port portion) of the trunk wall material is formed by the folding means arranged along the transport direction during the transport to move the pouch to the first position in the ground direction. The first bending and the second bending in the upper direction again at a predetermined distance from the first bending position are performed to form the filling port portion 55 which is the first branch chamber, and the center line c in the transport direction is formed. Sandwich it,
A secondary storage chamber 52, which is a second branch chamber, is formed. 62, 6
Reference numeral 2 denotes an easy-open seal material for easily opening and sealing the branch opening portion of the sub storage chamber, which is supplied to the position corresponding to the branch base portion of the sub storage chamber between the body wall members 60 and 61, and the position L-L. A heat seal is applied between the body wall members 60 and 61 with a seal press (not shown) to easily open and seal the branch base portion of the auxiliary storage chamber.

Although the easy-open seal material is also applied to the edge seal portion of the body wall material, the temperature of the body wall side edge heat seal press for sealing the body wall side edge seal portion is set to the easy-open seal material. By making the temperature higher than the heat-sealing temperature, the easy-opening property is destroyed and the heat-sealing is performed, so that the edge seal portion is bonded while maintaining the necessary seal strength.
Further, in the easy-open seal, a layer in which a synthetic resin incompatible with the base sheet is blended may be formed on this portion of the body wall material without necessarily using the easy-open tape. Further, without using a special easy-opening material, the temperature and pressure of the heat seal press are controlled, and the fuselage walls are pseudo-welded at the welding temperature or lower, and an appropriate means can be adopted.

Reference numeral 63 is a bottom wall material which constitutes the bottom wall of the multi-chamber branch type self-supporting pouch, and is supplied between the body wall materials and heat-welded in the same manner as in the above embodiment. Reference numerals 64 and 65 denote barrier materials for covering both wall surfaces of the auxiliary storage chamber, which are unwound from the roll bobbin and supplied to the outer surfaces of the body wall materials 60 and 61 at positions forming the auxiliary storage chamber by appropriate guide means. (Fig. 8
(B)) At the position NN in FIG. 7, the barrier material heat seal press 66 covers both wall surfaces of the auxiliary storage chamber and heat welding is performed. The heat welding may be performed on the entire surface of the sub-accommodation chamber wall, or may be performed only on the peripheral edge portion, and can be appropriately selected as necessary. Further, the barrier materials 64 and 65 are not necessarily the same material. For example, the barrier material supplied to the surface side in a normal state is made transparent so that the contents stored in the sub storage chamber can be seen from the outside. It can be appropriately selected as necessary. After that, the cutter 67 is cut along the center line c at the O-O position, separated into two rows, and then cut along the body wall edge seal portion to obtain a multi-row as shown in the left end of FIG. A branching type self-supporting pouch 50 is obtained. Although not described in the above step, a step of cutting the end of the auxiliary storage chamber, which is the filling port and the spout, in the width direction, and opening the same is included, as in the above embodiment.

In the above process, there is no particular step of folding the auxiliary storage chamber to the pouch body side. For example, after filling the auxiliary storage chamber with the contents and sealing the end of the auxiliary storage chamber, the pouch body is closed. When the chamber is filled with contents, it is convenient for the pouch supplied to the filling step that the auxiliary storage chamber is located at the upper extension of the pouch body chamber, and if necessary, the embodiment described above. Similarly, a step of folding the sub-storing chamber on the wall side of the pouch body chamber can be provided.

The multi-chamber branch type self-supporting pouch of the present embodiment manufactured as described above is filled with the contents such as a powder agent in the sub-accommodating chamber 52 from the sub-accommodating chamber end port 59 and heat-sealed,
By folding the sub-accommodation chamber 52 on the wall of the pouch body chamber, filling the contents to be filled into the pouch body chamber 51 through the filling port 55 in this state, and sealing the opening of the filling port by sealing. A multi-chamber branch type self-supporting pouch in which the contents are filled and sealed as shown in FIG. 6 is obtained.

As described above, according to this embodiment, a multi-chamber branch type self-supporting pouch having an auxiliary storage chamber can be automatically manufactured in a continuous process. Further, according to the above-described embodiment, not only the case where the base of the sub-accommodation chamber is not sealed, but also the case where the heat is completely strongly sealed and the case where the easy-open seal is performed can be performed in a continuous process. Moreover, the sub-accommodation chamber and the pouch body chamber can be separately covered with the barrier material as needed. further,
When internal sterilization of the pouch is required, a material with good UV transparency is used for the body wall material, and the body wall material is UV sterilized in the previous step of covering with a barrier material to produce a sterile bag. can do.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the case where the spouts are formed so as to face each other toward the center line has been shown, but conversely, as shown in FIG. 9, the spouts can be manufactured so as to face each other outward. . The advantage in that case is that the branch portion is easily folded back. FIG. 9 shows a case where a multi-chamber branch type self-supporting pouch having the same shape as that of FIG. 5 is manufactured. In the figure, 75 and 76 are trunk wall materials, 77 is a bottom wall material, and 78 is a second branch chamber. The spout portion 79 is a filling port portion which is the first branch chamber. In addition, in FIG. 9, only one of the body wall members 75 on one side is folded back to form the filling port portion. However, like the embodiment shown in FIG. 1, among the two rows of multi-chamber branch type self-supporting pouches, One row of filling ports may be formed of the body wall material 75, and the other one row of filling ports may be formed of the body wall material 76. On the contrary, in the embodiment shown in FIG.
As in the embodiment shown in FIG. 9, the filling port may be formed by only one side wall material. Further, in the above-described embodiment, in the pouch manufacturing process, the step of cutting the second bending position to open the filling port is provided. However, the step is not performed in the bag making process, but immediately before filling the contents in the filling factory. By doing so, the inside of the pouch can be kept in a sealed state until the contents are filled, which is preferable from the viewpoint of hygiene.

Further, the manufacturing method of the branched self-supporting pouch of the present invention is not limited to the two-row picking as in the above-mentioned embodiment, and for example, as shown in FIG. ) And (b)) In the case of taking three rows, it can be arbitrarily selected according to the size of the pouch and the width of the material of the body wall material. Further, for example, as shown in FIG. 10B, even in the case of a standing pouch, the bottom wall 86 is formed by bending a single body wall material 82 without separating the bottom wall material from the body wall material. Can also be formed. In that case, a punch hole for fixing the side edge seal portion at the bottom portion may be provided in advance before bending. Further, when the outer wall layer of the body wall material also has thermal adhesiveness, it is not necessary to provide the punch holes, which is desirable. In addition, in FIG. 10, 80 to 84 are body wall materials, 85, 87,
88 is a bottom wall material.

Further, the branched pouch which can be manufactured by the manufacturing method and the manufacturing apparatus of the present invention is not limited to the above embodiment,
It can be applied to various types of pouches such as standing pouches and flat bags. The shape of the branch bag is, for example, a separate spout provided on the spout of the branch bag. Japanese Patent Application Nos. 8-354216 and 8-35442 previously proposed by the present inventors.
It can be applied to the production of various types of pouches exemplified as examples in No. 17.

[0033]

As described above, according to the present invention, a branching type self-supporting pouch capable of satisfying both filling property and pouring property by separately forming a filling port and a pouring port, and a pouch. It has a sub-storage room that is branched from the main body room, and the sub-storage room is separated from the pouch body room, so that the contents of the sub-storage room and the contents of the pouch body room do not mix at the distribution stage, but a branch seal is easy to use. A completely new type of multi-chamber branch pouch that can be mixed by breaking parts can be continuously and efficiently manufactured. Therefore, the content filling port and the spout of the branched self-supporting pouch can be formed in the optimum shapes according to the respective content items and the purpose of use thereof.

Further, according to the present invention, since the branch chamber is formed by folding the body wall material, it is possible to manufacture a pouch in which the print display is not misaligned between the pouch body chamber and the branch chamber. . In addition, if necessary, the branch chamber can be continuously laminated with barrier packaging material individually according to the conditions of the contents, and it is possible to obtain a pouch with excellent contents protection function and storability and displayability at low cost. it can.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a manufacturing method and a manufacturing apparatus for a branched pouch according to an embodiment of the present invention.

FIG. 2 is a front view thereof.

3A to 3E respectively correspond to schematic cross-sectional views for explaining the pouch manufacturing process in the cross section AA to EE in FIG. 1.

4 (f) to (k) are FF to K of FIG. 1 following FIG.
Each corresponds to a schematic cross-sectional view for explaining the pouch manufacturing process in the -K cross section.

FIG. 5 shows an embodiment of a branched pouch manufactured according to the present invention, (a-1) is a front view in which the spout is folded, and (a-2) is a state in which the contents are filled. 2B is a front view of the state in which the spout is raised, and FIG. 6B-2 is a center sectional view of the state in which the contents are filled.

6A and 6B show another embodiment of the branched pouch manufactured according to the present invention, in which FIG. 6A is a perspective view, FIG. 6B is a schematic cross-sectional view of the center in the state of being filled with contents, and FIG. FIG. 3 is a schematic cross-sectional view of a main part of a state in which a deoxidizing material is stored between the barrier film and the wall of the auxiliary storage chamber.

FIG. 7 is a plan view schematically showing a manufacturing method and a manufacturing apparatus of the branched pouch shown in FIG. 6 according to another embodiment of the present invention.

8A to 8D respectively correspond to schematic cross-sectional views for explaining the pouch manufacturing process in the cross section L-L to O-O of FIG. 7.

FIG. 9A is a plan view schematically showing a method of manufacturing a branched pouch according to another embodiment of the present invention, and FIG. 9B is a central sectional schematic view.

10 (a) to 10 (c) are cross-sectional views schematically showing still another embodiment of the method for producing a branched pouch of the present invention.

[Explanation of symbols]

1 Branch type self-supporting pouch 2, 3 Body wall 4 Pouring outlet part 5, 55 Filling port part 6, 17, 53 First bending position 15 First branching chamber 16 Second branching chamber 18 Second bending position 20, 21 , 60, 61, 75, 76, 80 to 84 Body wall material 22 Easy-open seal tape 23, 63, 77, 85, 87, 88 Bottom wall material 26 Body wall side edge heat seal press 30 Punching die 31 Slitter 32 Fold back Guide member group 33 Upper pouch row 34 Lower pouch row 36, 37, 67 Cutter 50 Multi-chamber self-supporting pouch 51 Pouch main chamber 52 Sub-storing chamber 54 Easy opening seal 58 Oxygen scavenger 62 Easy opening seal 64 , 65 Barrier material 66 Barrier material Heat seal press

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-10-218251 (JP, A) JP-A-3-200544 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B31B 1/00-1/98 B31B 19/00-41/74 B65D 30/22 B65D 81/32 B65D 83/00

Claims (15)

(57) [Claims] 1. A method for manufacturing a pouch, wherein a pouch is continuously and automatically manufactured from a long body wall material in a state in which the direction in which the body wall material is conveyed and the vertical direction of the pouch are perpendicular to each other. A pouch body chamber is formed inside the pouch by first bending a part of the material in the direction of the pouch along the transport direction and by making a second bend in the upward direction at a predetermined distance from the first bending position. And a first branch chamber formed by the side wall material on one side reaching the first bending position from the first bending position via the second bending position, and a portion extending from the first bending position to the top side. And a second branch chamber formed in the second branch chamber. 2. The method according to claim 1, wherein a spout is formed at the top of the second branch chamber to make the second branch chamber a spout and the first branch chamber a filling port. Method for manufacturing branched pouch. 3. The method for producing a branched pouch according to claim 1, further comprising the step of folding back the second branch chamber to the pouch body chamber side and folding the first branch chamber to the top side. 4. The second folded back to the pouch body chamber side
The method for manufacturing a branched pouch according to claim 3, further comprising an ear-stop step of spotting the branch chamber on the edge portion on the side of the trunk wall so as not to rise up carelessly. 5. The second branch chamber base is sealed in the vicinity of the first bending position of the second branch chamber, and the second branch chamber is formed in a sub-storing chamber separated from the pouch body chamber. The method for producing a branched pouch according to claim 1, which is characterized in that. 6. The method for producing a branched pouch according to claim 5, wherein the seal is an easily openable seal. 7. The method according to claim 5, further comprising the step of separately coating the auxiliary storage chamber or the pouch body chamber with a barrier film.
A method for producing the described branched pouch. 8. A multi-chamber branch pouch having a plurality of branch chambers formed by forming a plurality of the branch chambers.
6. A method for producing a branched pouch according to any one of 6 and 7. 9. The method for manufacturing a branched pouch according to claim 1, wherein a plurality of branched pouches are manufactured simultaneously from the body wall material. 10. A trunk wall side edge heat seal press for heat-sealing at least the trunk wall side edge portion facing a long passage of the trunk wall material, and along the heat-sealed trunk wall side edge portion. An automatic pouch manufacturing apparatus that automatically manufactures a pouch in a state in which the conveyance direction of the body wall material and the pouch vertical direction are perpendicular to each other, at least the body wall side. At least a part of the wall material on one side is first bent in the ground direction along the carrying direction in the trunk wall material conveying path on the upstream side of the edge heat seal press, and is separated from the first bending position by a predetermined distance. A branching pouch manufacturing apparatus, characterized in that bending means for performing a second bending again in the top position is arranged. 11. The branched pouch manufacturing method according to claim 10, further comprising a heat-sealing press for forming a spout that forms a spout on the top side of the first bending position, on the downstream side of the folding means. apparatus. 12. The branch according to claim 11, wherein a die-cutting device for cutting out and removing the outside of the heat-sealed portion of the spout formed by the heat press device is arranged on the downstream side of the spout-forming heat seal press device. Type pouch manufacturing equipment. 13. branched pouch manufacturing apparatus according to claim 10-12, wherein any one having a folded means folding the second branch chamber pouch body chamber side. 14. The branch pouch manufacturing apparatus according to claim 10, further comprising a seal press device that seals the base of the second branch chamber in the vicinity of the first bending position of the second branch chamber. 15. The branched pouch manufacturing apparatus according to claim 10, wherein the branched pouch is a branched self-supporting pouch.