JP2013144578A - Multi-cell packaging bag and method for manufacturing package using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag and a packaging bag manufacturing method capable of eliminating a need for a suction hole for selectively opening two storage parts formed at a front surface film side and a back surface film side with a division film as a boundary.SOLUTION: An opening width of a storage part 8b at a back surface film 3 side is narrower than an opening width of a storage part 8a at a front surface film 1 side, and facing surfaces of a front surface film 1 and a division film 2 are low melting-point sealant layers 1b, 2b, respectively, and facing surfaces of a back surface film 3 and the division film 2 are high melting-point sealant layers 2c, 3c, respectively. By a difference between the opening widths, the storage part 8a at the front surface film 1 side is preferentially opened when the front surface film 1 and the back surface film 3 are pulled by suction. By performing sealing at a seal temperature of the low melting-point sealant layer after an article to be packaged is filled, only the opening at the front surface film 1 side is selectively heat-sealed, and an opening of the storage part 8b at the back surface film 3 side can be opened by the suction of the front surface film 1 and the back surface film 2.

Description

  The present invention relates to a multi-chamber packaging bag having a plurality of storage units used for automatic filling packaging and a method for manufacturing a package by automatic filling using the multi-chamber packaging bag.

  Conventionally, the split film is sandwiched between the front film and the back film forming the front and back surfaces of the bag by dividing the opening between the front film and the back film into two parts. Each side has a bag shape in which a storage portion is formed, a suction hole (surface side suction hole) for sucking the divided film from the front film side, and a suction hole for sucking the divided film from the back film side (Back side suction holes) are multi-chamber packaging bags formed at the edge of the opening side of the front film and the back film, respectively, and a method of manufacturing a package using the same (for example, Patent Document 1).

  More specifically, an article to be packaged is automatically filled by sucking with a suction disk that operates on the front film side and the back film side, respectively, and pulling outward to open each storage unit. The front-side suction hole and the back-side suction hole of the multi-chamber packaging bag are designed to prevent two filling parts from being opened separately at the time of automatic filling and to prevent erroneous filling at the time of automatic filling. is there. For example, the suction disk on the front film side is pressed against the position of the suction hole on the front surface side to suck the divided film, and the suction disk on the back film side is pressed to the position shifted from the suction hole on the back side to suck the back film. When each is pulled outward, the storage part on the back film side can be opened. Contrary to this, the suction film on the front film side is pressed against the position shifted from the suction hole on the front side to suck the front film, and the suction board on the back film side is pressed against the position of the suction hole on the back side to divide. When the film is sucked and pulled outward, the storage portion on the surface film side can be opened.

Japanese Patent No. 3413506

  However, the above-described conventional multi-chamber packaging bag is such that, after the articles to be packaged are filled in both storage parts, the openings of both storage parts are sealed at the same time with a seal bar. After the package is filled, the one storage portion is left unsealed until the other storage portion is completely filled with the package. For this reason, there exists a problem that the one storage part filled with a to-be-packaged object has a larger risk of a foreign material mixing compared with the other storage part sealed immediately after filling with a to-be-packaged object. For example, when filling one container with a first packaged object and then filling the other container with a second package of powder or liquid, the second container splattered when filling the other container It may happen that the second article to be packaged intrudes into one storage part through a slight gap between the unsealed openings.

  In addition, the conventional multi-chamber packaging bag needs to form suction holes in both the front film and the back film in order to selectively open the two storage portions. For this reason, both the suction holes formed in the front film and the suction holes formed in the back film must be adjusted to be in a predetermined position, which increases the number of processes during bag making, such as pitch adjustment of both films. There is. In addition, the suction holes are usually formed in the original film, but the strength of the original film is lowered by the formation of the suction holes, and both the front film and the back film are produced at the time of bag making. There is also a problem that the handleability is lowered.

  Furthermore, after filling the package, the edges on the opening side of both storage parts are sealed by heat fusion, but suction holes are formed in both the front and back films, so sealant material etc. There is a problem that it is easy to adhere and deposit. In addition, the heat fusion is performed so that the suction hole is included in the heat fusion part, but the trace remains as the concave part on both the front and back sides, and there is a problem that the appearance of the obtained package is deteriorated. .

  The present invention enables one storage part to be sealed after filling a packaged object in one storage part and before filling the packaged object into the other storage part, It is a first object of the present invention to be able to suppress the risk of contamination of foreign matter into the storage portion.

  In addition, the present invention makes it possible to selectively open the two storage portions without using any one suction hole or suction hole on either side of the front and back, and the effort for adjusting the pitch between the front and back films, suction Deterioration in handling due to the formation of holes due to the formation of holes, deterioration of the appearance due to traces of suction holes left in the heat-sealing part for sealing, and adhesion of the sealant material to the seal bar The second purpose is to enable reduction or elimination.

  In order to achieve the first object, the present invention provides a multi-chamber packaging bag and a method for producing a package using the multi-chamber packaging bag.

  The multi-chamber packaging bag of the present invention is a split film in which an opening between one film and the other film is divided in half between one film located on either side of the front and the other film located on the other side. Sandwiched between the divided films, one side of the film and the other side of the film are formed into a bag shape, and the opposing surfaces of the one film and the divided film are respectively low melting point sealant layers, The multi-chamber packaging bag is characterized in that the opposing surface of the other film and the divided film is a high melting point sealant layer having a melting point higher than that of the low melting point sealant layer.

The manufacturing method of the package of the present invention uses the multi-chamber packaging bag of the present invention,
A first filling step of filling an object to be packaged in one film-side storage unit;
After the first filling step, the edges of one film, the divided film and the other film on the opening side are overlapped and sandwiched between seal bars, and the high melting point sealant layer is heated to the sealing temperature region of the high melting point sealant layer. The first sealing step of heating the low-melting-point sealant layer to the sealing temperature region of the low-melting-point sealant layer and heat-sealing one film and the edge of the split film on the opening side;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other A second filling step in which the film is sucked with a suction disk facing the film and pulled outward, the other film side opening is opened and the package is filled.
After the second filling step, the edge on the opening side of one film on which the divided film has been heat-sealed and the edge on the opening side of the other film are overlapped and sandwiched between seal bars, and a high melting point sealant layer And a second sealing step of heat-sealing the other film and the edge of the split film on the opening side thereof to heat up to the sealing temperature region of the high-melting-point sealant layer. It is.

  Further, the present invention uses the first to fourth multi-chamber packaging bags and the first to fourth multi-chamber packaging bags as preferred embodiments for simultaneously achieving the first and second objects. And a manufacturing method of the package.

  The first multi-compartment packaging bag of the present invention is the multi-compartment packaging bag of the present invention, in which the suction hole for sucking the divided film from the other film side is formed at the edge of the opening side of the other film. Is a multi-chamber packaging bag.

  The second multi-chamber packaging bag of the present invention is such that, in the multi-chamber packaging bag of the present invention, the other film-side storage portion can be opened and closed at the edge of the other film and the split film on the opening side. A multi-chamber packaging bag provided with a zipper.

  The third multi-chamber packaging bag of the present invention is the multi-chamber packaging bag of the present invention, wherein the opening width of the storage portion on the other film side is narrower than the opening width of the storage portion on the one film side. This is a multi-chamber packaging bag.

  A fourth multi-chamber packaging bag of the present invention is the multi-chamber packaging bag of the present invention, wherein the stiffness of the other film is 2.5 times or more of the stiffness of one film, and the stiffness of the other film and the divided film. Is a multi-chamber packaging bag for automatic filling, characterized in that

The manufacturing method of the package using the first multi-chamber packaging bag of the present invention uses the first multi-chamber packaging bag of the present invention,
While pulling the edge on the opening side of the divided film through the suction hole provided on the edge on the opening side of the other film with a suction disk facing the other film, and pulling outward, The first filling that fills the object to be packaged by sucking the edge on the opening side of one film with a suction disk facing the one film and pulling it outward, opening the storage on the one film side Process,
After the first filling step, the edges of one film, the divided film and the other film on the opening side are overlapped and sandwiched between seal bars, and the high melting point sealant layer is heated to the sealing temperature region of the high melting point sealant layer. The first sealing step of heating the low-melting-point sealant layer to the sealing temperature region of the low-melting-point sealant layer and heat-sealing one film and the edge of the split film on the opening side;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other A second filling step in which the film is sucked with a suction disk facing the film and pulled outward, the other film side opening is opened and the package is filled.
After the second filling step, the edge on the opening side of one film on which the divided film has been heat-sealed and the edge on the opening side of the other film are overlapped and sandwiched between seal bars, and a high melting point sealant layer And a second sealing step of heat-sealing the other film and the edge of the split film on the opening side thereof to heat up to the sealing temperature region of the high-melting-point sealant layer. It is.

The manufacturing method of the package using the second multi-chamber packaging bag of the present invention of the present invention uses the second multi-chamber packaging bag of the present invention,
With the zipper closed, the edge of the opening side of one film and the other film is sucked and pulled outward by the suction disk facing one film and the suction disk facing the other film, respectively. , A first filling step of opening a storage portion on one film side and filling a packaged item;
After the first filling step, the edges of one film, the split film and the other film on the opening side are overlapped and the outer part from the zipper is sandwiched by a seal bar, and the high melting point sealant layer is sealed with the sealing temperature of the high melting point sealant layer First, the low melting point sealant layer is heated to the sealing temperature region of the low melting point sealant layer without heating up to the region, and the edge of the opening side of one film and the divided film is heat-sealed outside the zipper. Sealing process;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other And a second filling step of filling the article to be packaged by opening the zipper and opening the other film side storage part, respectively with suction with a suction disk facing the film of
After the second filling step, the edge on the opening side of one film on which the split film is heat-sealed and the edge on the opening side of the other film are overlapped, and the outer part from the zipper is sandwiched between seal bars And a second sealing step of heating the high-melting-point sealant layer to a sealing temperature region of the high-melting-point sealant layer and heat-sealing the other film and the edge of the divided film on the opening side outside the zipper. Is a method for producing a package.

The method for producing a package using the third or fourth multi-chamber packaging bag of the present invention uses the third or fourth multi-chamber packaging bag of the present invention,
One film and the edge of the other film on the opening side are sucked and pulled outward by the suction disk facing the one film and the suction disk facing the other film, and stored on the one film side A first filling step of opening a part and filling a packaged item;
After the first filling step, the edges of one film, the divided film and the other film on the opening side are overlapped and sandwiched between seal bars, and the high melting point sealant layer is heated to the sealing temperature region of the high melting point sealant layer. The first sealing step of heating the low-melting-point sealant layer to the sealing temperature region of the low-melting-point sealant layer and heat-sealing one film and the edge of the split film on the opening side;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other A second filling step in which the film is sucked with a suction disk facing the film and pulled outward, the other film side opening is opened and the package is filled.
After the second filling step, the edge on the opening side of one film on which the divided film has been heat-sealed and the edge on the opening side of the other film are overlapped and sandwiched between seal bars, and a high melting point sealant layer And a second sealing step of heat-sealing the other film and the edge of the split film on the opening side thereof to heat up to the sealing temperature region of the high-melting-point sealant layer. It is.

  In the present invention, the seal temperature region refers to a temperature region in which the sealant layer exhibits a heat fusion function.

  In the multi-chamber packaging bag of the present invention, each of the facing surfaces of one film and the divided film has a low melting point sealant layer, and the facing surface of the other film and the divided film has a higher melting point than the low melting point sealant layer. It has become. Therefore, by utilizing the difference in the sealing temperature region due to the difference in melting point between the low melting point sealant layer and the high melting point sealant layer, the edge on the opening side of one film and the split film facing each other. Only the part can be selectively heat-sealed. In the method for manufacturing a package according to the present invention, an object to be packaged is first filled in a storage portion on one film side, and immediately after filling, only the edge on the opening side of one film and a divided film is selectively heat-melted. As a result, the storage portion on one film side can be sealed immediately after filling the packaged item, thereby preventing foreign matter from entering.

  Moreover, about the 1st-4th multi-chamber packaging bag of this invention, after heat-sealing the edge part of one film and the opening part side of a division | segmentation film, one film and a division | segmentation film are attracted | sucked integrally. Therefore, the other film side storage portion can be opened without using the suction hole. In the manufacturing method of the package using the first to fourth multi-chamber packaging bags of the present invention, after the one film and the edge of the divided film on the opening side are heat-sealed, the other film side is stored. Therefore, the suction hole for opening the storage part on the other film side can be omitted.

  The first multi-chamber packaging bag of the present invention has a suction hole in order to selectively open the storage portion on one film side. However, like the method of manufacturing the package of the present invention, after the one film and the edge of the split film on the opening side are heat-sealed, the other film side is opened. With only one suction hole, the storage part on one film side and the other film side can be selectively opened. Therefore, according to the first multi-chamber packaging bag of the present invention and the method of manufacturing a package using the same, the adverse effect caused by the formation of the suction holes can be reduced to 1 / 2 can be reduced.

  The second multi-chamber packaging bag of the present invention has a zipper that opens and closes the storage portion on the other film side, and when the zipper is closed, the divided film is sucked together with the other film. By accommodating one film and the other film without providing a hole, it is possible to selectively open the storage portion on the one film side. Therefore, according to the second multi-chamber packaging bag of the present invention and the method for producing a package using the same, the above-mentioned adverse effects caused by the formation of the suction holes can be eliminated without the need for suction holes.

  In the third multi-chamber packaging bag of the present invention, the opening of the storage part on one film side sucks and pulls the edge part on the opening part side of one film and the edge part on the opening part side of the other film. Can be done. The opening on the other film side is performed in a state where the divided film is not sucked to either side. However, the opening width of the other film-side storage portion is wider than the opening width of one film side, and the other film-side storage portion is easier to open than the one film-side storage portion. It is possible to preferentially open the storage part on the other film side without opening the storage part on the one film side. Therefore, according to the third multi-chamber packaging bag of the present invention and the method for producing a package using the same, the above-mentioned adverse effects caused by the formation of the suction holes can be eliminated without the need for suction holes.

  In the fourth multi-chamber packaging bag of the present invention, the opening of the storage portion on one film side sucks and pulls the edge on the opening side of one film and the edge on the opening side of the other film. Can be done. The opening on the one film side is performed in a state where the divided film is not sucked to either side. However, when one film and the other film are sucked and pulled outward, the other film is stiffer than the other film. Therefore, a larger force is required to bend the film toward the outside to bend, and as a result, a force to bend the film in a convex manner to the other film side acts on the divided film. In addition, since the split film has substantially the same rigidity as the other film, the split film bends following the other film by the force to bend, thereby closing the storage portion on the other film side. This state is maintained, and only the storage part on one film side is opened. That is, the storage part on the one film side can also be opened without using the suction hole. Therefore, according to the fourth multi-chamber packaging bag of the present invention and the method for manufacturing a package using the same, the above-mentioned adverse effects caused by the formation of the suction holes can be eliminated without the need for suction holes.

It is explanatory drawing of the combined state of the film which comprises the 1st multi-chamber packaging bag of this invention. It is a perspective view of the 1st multi-chamber packaging bag of this invention. It is an expansion cross-sectional view of the 1st multi-chamber packaging bag of this invention. It is a perspective view of the state which set the 1st multi-chamber packaging bag of the present invention to the grasping tool. It is explanatory drawing of the 1st filling process using the 1st multi-chamber packaging bag of this invention. It is explanatory drawing of the 1st sealing process using the 1st multi-chamber packaging bag of this invention. It is explanatory drawing of the 2nd filling process using the 1st multi-chamber packaging bag of this invention. It is explanatory drawing of the 2nd sealing process using the 1st multi-chamber packaging bag of this invention. It is a top view which shows an example of the package manufactured using the 1st multi-chamber packaging bag of this invention. It is a top view which shows the other example of the package manufactured using the 1st multi-chamber packaging bag of this invention. It is explanatory drawing of the combined state of the film which comprises the 2nd multi-chamber packaging bag of this invention. It is a perspective view of the 2nd multi-chamber packaging bag of this invention. It is explanatory drawing of the 1st filling process using the 2nd multi-chamber packaging bag of this invention. It is explanatory drawing at the time of zipper opening of the 2nd multi-chamber packaging bag of this invention. It is explanatory drawing of the 2nd filling process using the 2nd multi-chamber packaging bag of this invention. It is a top view which shows an example of the package manufactured using the 2nd multi-chamber packaging bag of this invention. It is a perspective view of the 3rd multi-chamber packaging bag of this invention. It is an expansion cross-sectional view of the 3rd multi-chamber packaging bag of this invention. It is explanatory drawing of the 1st filling process using the 3rd multi-chamber packaging bag of this invention. It is explanatory drawing of an effect | action when opening the accommodating part by the side of the surface film of the 3rd multi-chamber packaging bag of this invention. It is a top view which shows an example of the package manufactured using the 3rd multi-chamber packaging bag of this invention. It is a perspective view which shows the other example of the 3rd multi-chamber packaging bag of this invention. It is a perspective view of the 4th multi-chamber packaging bag of this invention. It is explanatory drawing of the 1st filling process using the 4th multi-chamber packaging bag of this invention. It is explanatory drawing of an effect | action when opening the accommodating part by the side of the surface film of the 4th multi-chamber packaging bag of this invention. It is a top view which shows an example of the package manufactured using the 3rd multi-chamber packaging bag of this invention. It is explanatory drawing of the measuring apparatus and measuring method of rigidity.

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings described below, the same reference numerals indicate the same members or parts.

<First multi-chamber packaging bag and method for producing a package using the same>
First, based on FIGS. 1-10, an example of the 1st multi-chamber packaging bag of this invention and an example of the manufacturing method of the package of this invention using this are demonstrated.

  FIG. 1 is an explanatory view of a combination state of films constituting the first multi-chamber packaging bag of the present invention, FIG. 2 is a perspective view of the first multi-chamber packaging bag of the present invention, and FIG. 4 is an enlarged cross-sectional view of the multi-chamber packaging bag, FIG. 4 is a perspective view of the first multi-chamber packaging bag of the present invention set on a gripper, and FIG. 5 uses the first multi-chamber packaging bag of the present invention. FIG. 6 is an explanatory diagram of the first filling step, FIG. 6 is an explanatory diagram of the first sealing step using the first multi-chamber packaging bag of the present invention, and FIG. 7 is a second diagram using the first multi-chamber packaging bag of the present invention. FIG. 8 is an explanatory diagram of a filling process, FIG. 8 is an explanatory diagram of a second sealing process using the first multi-chamber packaging bag of the present invention, and FIG. 9 is a package manufactured using the first multi-chamber packaging bag of the present invention. FIG. 10 is a plan view showing another example of a package manufactured using the first multi-chamber packaging bag of the present invention.

  As shown in FIGS. 1 and 2, the multi-chamber packaging bag (first multi-chamber packaging bag) 4A of this example is composed of three films: one film 1, a divided film 2, and the other film 3. Has been. One film 1 and the other film 3 are located on the front and back of the multi-chamber packaging bag 4A, and either one may be the front or back, but for convenience of explanation, the one film 1 is located on the front side of the bag. The film and the other film 3 will be described as a back film located on the back side of the bag (the same applies to second to fourth multi-chamber packaging bags 4B to 4D described later).

  The surface film 1, the split film 2, and the back film 3 in this example have the same shape and size. The multi-chamber packaging bag 4A has a bag shape in which the surface film 1, the divided film 2 and the back film 3 are stacked with the divided film 2 sandwiched between the surface film 1 and the back film 3, and the three sides of the peripheral part are heat-sealed. There is no. Reference numerals 5 and 6 are heat fusion portions formed on three sides of the bag, 5 is a side edge fusion portion, and 6 is a bottom edge fusion portion.

  The divided film 2 bisects the opening 7 between the front film 1 and the back film 3 formed at one edge where the heat fusion is not performed, and the divided film 2 serves as a boundary for the surface film. Storage portions 8a and 8b are respectively formed on the 1 side and the back film 3 side. The storage portions 8a and 8b have openings 7a and 7b which are one and the other of the openings 7 divided into two parts by the divided film 2, respectively. A suction hole 9 penetrating the back film 3 is formed at the center of the edge on the opening 7 (7b) side of the back film 3 so that the split film 2 can be sucked from the back film 3 side. .

  The multi-chamber packaging bag 4A includes a storage portion 8a on the front film 1 side formed between the front film 1 and the split film 2, and a storage portion 8b on the back film 3 side formed between the back film 3 and the split film 2. And can be filled with two types of articles to be packaged. The packaged items are automatically opened without mistakes in the filling location by opening the storage portion 8a on the front film 1 side and the storage portion 8b on the back film 3 side separately (opening the openings 7a and 7b separately). Can be filled.

  As shown in FIG. 3, the surface film 1 is obtained by laminating a low-melting-point sealant layer 1b on the inner surface side (housing portion 8a side) of the base material layer 1a, and the back film 3 is the inner surface side of the base material layer 3a. A high melting point sealant layer 3c having a melting point higher than that of the low melting point sealant layer 1b is laminated on the storage unit 8b side. The split film 2 is formed by laminating a low-melting-point sealant layer 2b on one side of the base material layer 2a and laminating a high-melting-point sealant layer 2c on the other side. The high melting point sealant layer 2 c is opposed to the high melting point sealant layer 3 c of the back film 3. The side edge fused portion 5 and the bottom edge fused portion 6 (see FIG. 2) are formed by heat fusion between the high melting point sealant layers 2c and 3c and heat fusion between the low melting point sealant layers 1b and 2b. ing.

  The low-melting-point sealant layers 1b, 2b and the high-melting-point sealant layers 2c, 3c are heat-sealed to each other in the first sealing step described later by shifting the respective sealing temperature regions. The low-melting-point sealant layers 1b and 2b can be selectively heat-sealed. For this reason, the melting points of the high melting point sealant layers 2c and 3c are preferably higher by 20 ° C. than the melting points of the low melting point sealant layers 1b and 2b. If the melting points of the high melting point sealant layers 2c and 3c are too low, the high melting point sealant layers 2c and 3c and the low melting point sealant layers 1b and 2b come close to each other, making it difficult to perform the selective thermal fusion. The upper limit is determined from the melting point of a general sealant layer, the melting point of the base material layers 1a, 2a, and 3a. In addition, as the low melting point sealant layers 1b and 2b and the high melting point sealant layers 2c and 3c, the same synthetic resin is generally used, but different synthetic resins can also be used. When using a different synthetic resin, the melting point of the high melting point sealant layer 2c or 3c having the lower melting point is preferably higher by 20 ° C. than the melting point of the lower melting point sealant layer 1b or 2b having the higher melting point. In addition, in this invention, melting | fusing point means the value measured based on JIS-K-7121.

  As each base material layer 1a, 2a, 3a of the surface film 1, the division | segmentation film 2, and the back surface film 3, the single layer or laminated film of a synthetic resin can be used. As a laminated film, in addition to a laminate of synthetic resin layers, a laminate of a synthetic resin layer and a metal or other inorganic layer or paper layer may be used. Moreover, as each base material layer 1a, 2a, 3a, the film of the respectively same structure may be sufficient, and the film of a different structure may be sufficient.

  Next, an example of the manufacturing method of the package using the said multi-chamber packaging bag 4A is demonstrated.

  The packaging body using the multi-chamber packaging bag 4A can be produced by holding the multi-chamber packaging body 4A in a state where the multi-chamber packaging body 4A is erected with the gripping tools 10 and 10 as shown in FIG.

  As shown in FIG. 4, the multi-chamber packaging bag 4 is suspended by gripping the upper portions of the side edge fused portions 5, 5 with the gripping tools 10, 10, and toward the outer surfaces of the front film 1 and the back film 3. Each is positioned between a pair of suction disks 11a and 11b that can be advanced and retracted. As the gripping tools 10, 10, a clip-like tool that holds the side edge fusion parts 5, 5 in between can be used. In addition, both the gripping tools 10 and 10 can elastically open the storage portions 8a and 8b in the opposing direction so that an excessive force is not applied to the multi-chamber packaging bag 4A due to the opening. It is preferable to be able to advance and retreat.

  The selective opening of the storage portion 8a (see FIG. 2) on the front film 1 side and the storage portion 8b (see FIG. 2) on the back film 3 side is performed by the advancement / retraction and suction of the suction disks 11a and 11b. Although the suction position by the suction disks 11a and 11b will be described later, the adjustment of the suction position can be performed by adjusting the position of the multi-chamber packaging bag 4A between the suction disks 11a and 11b. However, in order to facilitate the adjustment of the suction position, the suction disks 11a and 11b are preferably movable up and down and left and right along the facing front film 1 or back film 3.

  First, the 1st filling process which opens the accommodating part 8a by the side of the surface film 1 and fills a to-be packaged object is demonstrated.

  As shown in FIG. 5, both suction disks 11 a and 11 b are advanced toward the front film 1 and the back film 3, near the center of the edge of the front film 1 on the opening 7 side, and the back film 3. The suction holes 9 are in contact with each other and sucked. Thereby, the surface film 1 is adsorbed to the suction disk 11a. In addition, the edge on the opening 7 side of the divided film 2 is sucked and sucked through the suction hole 9 to the suction disk 11b, and the periphery of the suction hole 9 of the back film 3 is also sucked. When the suction disks 11a and 11b are moved backward in this state, the front film 1 and the back film 3 sucked together with the divided film 2 are pulled outward, and the opening of the storage portion 8a on the front film 1 side is pulled. The part 7a is expanded. At this time, the opening 7b of the storage portion 8b (see FIG. 2) on the back film 3 side is closed by the back film 3 being attracted to the suction disk 11b together with the divided film 2, so that erroneous insertion is prevented. The packaged object can be automatically filled into the storage portion 8a on the surface film 1 side reliably.

  As described above, if the gripping tools 10 and 10 can be elastically advanced and retracted in the opposite direction, both gripping plates 11a and 11b are retracted when the front film 1 and the back film 3 are pulled outward. It is possible to prevent the tools 10 and 10 from elastically moving in the opposite direction and applying excessive tension to the multi-chamber packaging bag 4A. Further, after filling the storage portion 8a on the surface film 1 side with the article to be packaged, if both suction discs 10a, 10b are advanced, both gripping tools 10, 10 are elastically retracted, and accordingly the storage portion 8a. The opening 7a can be returned to the closed state.

  Next, the 1st sealing process which seals the accommodating part 8a by the side of the surface film 1 filled with the to-be-packaged object is given.

  In the first sealing step, after the first filling step, as shown in FIG. 6, the edge portions on the opening 7 side of the surface film 1, the divided film 2 and the back film 3 are overlapped with the seal bars 12, 12. It is performed by sandwiching and heat-sealing the edges of the surface film 1 and the divided film 2 on the opening 7 side. At this time, not only the front film 1 and the divided film 2 but also the back film 3 is sandwiched between the seal bars 12 and 12. However, without heating the high melting point sealant layers 2c and 3c described in FIG. 3 to the sealing temperature region of the high melting point sealant layers 2c and 3c, the low melting point sealant layers 1b and 2b By heating up to the sealing temperature region, the low melting point sealant layer 1b, Only the edge on the opening 7 side of the surface film 1 and the split film 2 facing 2b can be heat-sealed. That is, it is possible to seal only the storage portion 8a on the front film 1 side without sealing the storage portion 8b on the back film 3 side.

  Next, the 2nd filling process which opens the accommodating part 8b by the side of the back film 3 and fills a to-be-packaged object is performed.

  After the first sealing step, the second filling step is performed by sucking the front film 1 and the back film 3 with the suction disks 11a and 11b and pulling them outward as shown in FIG. In FIG. 7, 13 ′ is an upper edge fusion part (a heat fusion part between edges on the opening 7 side of the surface film 1 and the divided film 2) formed in the first sealing step.

  The suction disk 11a facing the surface film 1 is brought into contact with the vicinity of the central portion of the edge of the surface film 1 on the opening 7 side where the upper edge fused portion 13 'is formed, and the suction facing the back film 3 The board 11b is brought into contact with the edge on the opening 7 side of the back film 3 which is displaced from the position of the suction hole 9, and sucked respectively. When the front surface film 1 and the rear surface film 3 are adsorbed by the suction disks 11a and 11b, respectively, when the suction disks 11a and 11b are moved backward, the divided film in which the surface film 1 is joined by the upper edge fused portion 13 ′. 2, the back film 3 is pulled outward, and the opening 7b of the storage portion 8b on the back film 3 side is opened. At this time, since the opening 7a of the storage portion 8a on the front film 1 side is sealed by the upper edge fused portion 13 ', the packaging material is securely stored on the back film 3 side while preventing erroneous insertion. The portion 8b can be automatically filled.

  In addition, if the gripping tools 10 and 10 are made to be able to move forward and backward elastically in the opposite direction, the second filling process also advances and retracts similarly to the first filling process, and an excessive load is applied to the multi-chamber packaging bag 4A. It can be prevented from joining.

  Furthermore, the 2nd sealing process which seals the accommodating part 8b by the side of the back film 3 filled with the to-be-packaged object is given.

  In the second sealing step, after the second filling step, the edge portion on the opening 7 side of the surface film 1 and the divided film 2 joined by the upper edge fused portion 13 ′, and the opening portion 7 side of the back film 3 As shown in FIG. 8, the film is sandwiched between seal bars 12 and 12, and the edges on the opening 7 side of the back film 3 and the divided film 2 are heat-sealed. In the second sealing step, the high melting point sealant layers 2c and 3c described in FIG. 3 are heated to the sealing temperature region of the high melting point sealant layers 2c and 3c. Thereby, the edge part by the side of the opening 7 of the back film 3 and the division | segmentation film 2 which the high melting point sealant layers 2c and 3c are facing are heat-seal | fused, and the accommodating part 8b by the side of the back film 3 is sealed. At the same time, the low-melting-point sealant layers 1b, 2b having a lower melting point than the high-melting-point sealant layers 2c, 3c are also heated to the sealing temperature region, and the surface film 1 facing the low-melting-point sealant layers 1b, 2b In other words, the edge of the divided film 2 on the opening 7 side is reheat-sealed.

  In the second sealing step, as shown in FIG. 9, the upper edge fused portion 13 that encloses the suction hole 9 is formed to seal the opening 7 (7a, 7b), and the manufacturing of the package is completed. To do. The upper edge fused portion 13 shown in FIG. 9 is a portion in which the edge portions on the opening 7 side of the surface film 1, the divided film 2, and the back film 3 are thermally fused to each other.

  By the way, in the package shown in FIG. 9, the trace of the suction hole 9 remains on the upper edge fused portion 13 as a concave portion, although only on the back film 3 side. Therefore, as shown in FIG. 10, after forming the upper edge fused portion 13, the suction hole 9 can be punched out to form a single through hole containing the suction hole 9 as the hanging hole 14. preferable. The suspension hole 14 is for hanging and displaying the manufactured package at a store. By removing the trace of the suction hole 9 by the suspension hole 14, it is possible to eliminate the uncomfortable feeling. The suspension hole 14 is formed as a through hole that is the same as or larger than the suction hole 9, and has an elliptical shape, a gourd shape, an egg shape, a rice ball shape, etc. in addition to the circular hole shown in the figure. You can also.

<Second multi-chamber packaging bag and method for producing a package using the same>
Next, based on FIGS. 11-16, an example of the 2nd multi-chamber packaging bag of this invention and an example of the manufacturing method of the package of this invention using this are demonstrated.

  FIG. 11 is an explanatory view of a combination state of films constituting the second multi-chamber packaging bag of the present invention, FIG. 12 is a perspective view of the second multi-chamber packaging bag of the present invention, and FIG. 14 is an explanatory diagram of the first filling process using the multi-chamber packaging bag, FIG. 14 is an explanatory diagram when the second multi-chamber packaging bag of the present invention is opened, and FIG. 15 is the second multi-chamber packaging bag of the present invention. Explanatory drawing of the used 2nd filling process, FIG. 16 is a top view which shows an example of the package manufactured using the 2nd multi-chamber packaging bag of this invention.

  As shown in FIGS. 11 and 12, the multi-chamber packaging bag (second multi-chamber packaging bag) 4B of this example is basically the first multi-chamber packaging bag 4A described in FIGS. However, the zipper 15 which can open and close the accommodating part 8b formed between both is attached to the edge part by the side of the opening part 7 (7b) of the back surface film 3 and the division | segmentation film 2. FIG. The zipper 7 is composed of a male die 15a having convex ridges and a female die 15b having concave ridges, and the storage portion 8b is closed by fitting the male die 15a and the female die 15b to release the fitting. Thus, the storage portion 8b can be opened. Moreover, the multi-chamber packaging bag 4B of this example does not have the suction hole 9 (see FIG. 2) provided in the first multi-chamber packaging bag 4A described in FIGS. .

  The multi-chamber packaging bag 4B of this example is the same as the first multi-chamber packaging bag 4A except that it has the zipper 7 and does not have the suction hole 9 (see FIG. 2). Each layer structure of the division | segmentation film 2 and the back film 3 is the same as that of the layer structure demonstrated in FIG.

  Next, an example of a method for producing a package using the multi-chamber packaging bag 4B will be described focusing on differences from the method for producing a package using the first multi-chamber packaging bag 4A.

  As shown in FIG. 13, the first filling step of opening the storage portion 8a on the surface film 1 side to fill the package is performed with the zipper 15 closed. With the zipper 15 closed, the suction plates 11a and 11b are moved forward toward the front film 1 and the back film 3, respectively, and are brought into contact with the vicinity of the center of the edge on the opening 7 side of the both, respectively. . With the front film 1 and the back film 3 being adsorbed to the suction disks 11a and 11b, the suction disks 11a and 11b are moved backward. As a result, the split film 2 joined to the back film 3 is pulled outward by the closed zipper 7 together with the back film 3, and the front film 1 is pulled outward, so that the storage section on the front film 1 side The opening part 7a of 8a opens, and the accommodating part 8a can be opened. At this time, since the opening 7b of the storage portion 8b (see FIG. 12) on the back film 3 side is closed by the zipper 15, the packaged object is securely stored on the surface film 1 side while preventing erroneous insertion. The portion 8a can be automatically filled.

  The first sealing step performed after the first filling step is the same as the first sealing step in the manufacturing method of the package using the first multi-chamber packaging bag 4A, but the seal bar described in FIG. 12 and 12 is an outer portion than the zipper 15.

  Next, the 2nd filling process which opens the accommodating part 8b by the side of the back surface film 3 and fills with a to-be-packaged product is performed by opening the zipper 15. First, a method for opening the zipper 15 will be described with reference to FIG. In FIG. 14, 13 ′ is an upper edge fusion part (a heat fusion part between edges on the opening 7 side of the surface film 1 and the divided film 2) formed outside the zipper 15 in the first sealing step. .

  As shown in FIG. 14, the suction disks 11a and 11b are respectively brought into contact with the vicinity of the center of the edge of the front film 1 and the back film 3 on the side of the opening 7 outside the zipper 15 to suck the front film 1 The back film 3 is adsorbed to the suction disks 11a and 11b. When the suction disks 11a and 11b are slightly retracted in this state, the split film 2 joined to the surface film 1 by the upper edge fused portion 13 ′ is pulled outward together with the surface film 1, and the back film 3 is While being pulled outwardly, the zipper 7 is in a closed state, but the gap between the outer edges of the surface film 1 and the split film 2 from the zipper 15 can be widened. By inserting a spatula-like or claw-like release tool 16 between the widened edges and pressing it against the zipper 15, the fitting of the male mold 15 a and the female mold 15 b is released to easily open the zipper 15. Can do.

  The zipper 15 can be opened by sucking the front film 1 and the back film 3 with the suction disks 11a and 11b and then strongly retracting the suction disks 11a and 11b. However, the use of the release tool 16 as described above is preferable because it can be reliably opened without applying excessive force to the multi-chamber packaging bag 4B.

  By opening the zipper 15 as described above, the storage portion 8b (see FIG. 12) on the back film 3 side can be selectively opened. A method for opening the storage portion 8b on the back film 3 side will be described.

  After the zipper 15 is opened, when the suction plates 11a and 11b are further retracted while maintaining the suction positions of the suction plates 11a and 11b when the zipper 15 is opened, as shown in FIG. And the surface film 1 is pulled outward together with the divided film 2 joined at the upper edge fused portion 13 ′, and the opening 7b of the storage portion 8b on the back film 3 side is widened. At this time, since the storage portion 8a on the front film 1 side is sealed by the upper edge fused portion 13 ′, the packaged object is surely automatically transferred to the storage portion 8b on the back film 3 side while preventing erroneous insertion. Can be filled.

  The second sealing step performed after the second filling step is the same as the second sealing step in the method for manufacturing a package using the first multi-chamber packaging bag 4A, but the seal bar shown in FIG. 12 and 12 is an area outside the zipper 15 and is usually an area corresponding to the upper edge fusion part 13 ′. In this second sealing step, the upper edge fused portion 13 shown in FIG. 16 (the portion where the edges on the opening 7 side of the surface film 1, the divided film 2 and the back film 3 are thermally fused to each other) is formed. Then, the opening 7 (7a, 7b) is sealed to complete the manufacture of the package. Further, the zipper 15 opened in the second filling step is a nipping roller or a pressing plate (not shown) before or after the formation of the upper edge fusion portion 13 in the second sealing step or simultaneously with the formation of the upper edge fusion portion 13. It is preferable that the zipper 15 is sandwiched between them to be closed.

<Third multi-chamber packaging bag and method for producing a package using the same>
Next, based on FIGS. 17-22, an example of the 3rd multi-chamber packaging bag of this invention and an example of the manufacturing method of the package of this invention using this are demonstrated.

  FIG. 17 is a perspective view of the third multi-chamber packaging bag of the present invention, FIG. 18 is an enlarged cross-sectional view of the third multi-chamber packaging bag of the present invention, and FIG. 20 is an explanatory diagram of the first filling step, FIG. 20 is an explanatory diagram of the action when the storage portion on the surface film side of the third multi-chamber packaging bag of the present invention is opened, and FIG. 21 is the third multi-chamber of the present invention. The top view which shows an example of the package manufactured using the packaging bag, FIG. 22 is a perspective view which shows the other example of the 3rd multi-chamber packaging bag of this invention.

  As shown in FIGS. 17 and 18, the multi-chamber packaging bag (second multi-chamber packaging bag) 4C of the present example is basically the first multi-chamber packaging bag 4A described in FIGS. However, it does not have the suction hole 9 (see FIG. 2) provided in the first multi-chamber packaging bag 4A. Further, the side edge fused portions 5 and 5 include three layers fused portions 5b and 5b obtained by joining the three members of the surface film 1, the divided film 2 and the back film 3, and the back film 3 and the divided film 2. It is comprised by the two-layer melt | fusion part 5a, 5a which joined. And the multi-chamber packaging bag 4C of this example is such that the two-layer fused portions 5a, 5a are inside the bag from the three-layer fused portions 5b, 5b over the entire length of the left and right side edge fused portions 5, 5. I'm stuck in. As a result, the opening width of the storage portion 8b on the back film 3 side is narrower than the opening width of the storage portion 8a on the front film 1 side. With such an opening width, as will be described later, when opening the storage portion 8a on the surface film 1, the storage portion on the back film 3 side without sucking the divided film 2 from the back film 3 side. The storage part 8a on the surface film 1 side can be preferentially opened without opening 8b.

  In this example, both the right and left side edge fused portions 5 and 5 are formed by two-layer fused portions 5a and 5a inside the three-layer fused portions 5b and 5b. Only the edge fused portion 5 may be formed by forming the two-layer fused portion 5a inside the three-layer fused portion 5b.

  The multi-chamber packaging bag 4C of this example has the back film 3 and the divided film 2 overlapped, the two-layer fusion portions 5a and 5a, and the three-layer fusion portions 5b and 5b adjacent to the two-layer fusion portions 5a and 5a. Can be manufactured easily by heat-sealing a portion corresponding to a part or the whole of the film, and then superimposing the surface film 1 and heat-sealing the regions corresponding to the three-layer fused portions 5b and 5b. it can.

  Next, an example of a method for manufacturing a package using the multi-chamber packaging bag 4C will be described focusing on differences from the method for manufacturing a package using the first multi-chamber packaging bag 4A.

  As shown in FIG. 19, the first filling step of opening the storage portion 8a on the surface film 1 side to fill the packaged object sucks and adsorbs the surface film 1 and the back film 3 with the suction disks 11a and 11b. This is done by pulling outward to open the storage portion 8a on the surface film 1 side.

  First, the suction plates 11a and 11b are moved forward toward the front film 1 and the back film 3, and are brought into contact with the vicinity of the center of the edge of the front film 1 and the back film 3 on the opening 7 side, respectively. Suction. With the front film 1 and the back film 3 being adsorbed to the suction disks 11a and 11b, the suction disks 11a and 11b are moved backward. Thereby, the surface film 1 and the back surface film 3 are pulled outward, and are each curved outward and convex.

  By the way, as described above, the storage portion 8a on the front film 1 side is wider than the storage portion 8b on the back film 3 side and is easily opened. Therefore, the front film 1 is divided. The storage portion 8a on the surface film 1 side is opened by being curved outwardly away from the film 2. Further, since the opening portion 8b on the back film 3 side has a narrower opening width than the storage portion 8a on the front film 1 side and is difficult to be opened, the storing portion 8a on the front film 1 side is opened. Even if it does, the accommodating part 8b (refer FIG. 17) by the side of the back film 3 maintains the state closed, without opening. Therefore, only the storage portion 8a on the surface film 1 side is opened, and an object to be packaged can be automatically filled into the storage portion 8a on the surface film 1 side reliably while preventing erroneous insertion.

  More specifically, in the side edge fused portions 5 and 5, when the two-layer fused portions 5a and 5a enter the inside of the bag from the three-layer fused portions 5b and 5b, as shown in FIG. By pulling the film 3 outward, a force F that pulls the split film 2 in the same direction as the back film 3 acts on the inner ends of the two-layer fused portions 5a and 5a. For this reason, the division | segmentation film 2 follows the back film 3, and curves to the back film 3 side convexly, and the accommodating part 8b (refer FIG. 2) by the back film 3 side remains in the closed state. On the other hand, since the back film 3 and the divided film 2 are pulled and curved in the opposite direction, the front film 1 is opened in the storage portion 8a on the front film 1 side.

  The amount of the two-layer fused portions 5a, 5a entering the inside of the bag from the three-layer fused portions 5b, 5b makes a difference in the ease of opening between the storage portions 8a, 8b, and the force F is easily applied. Therefore, it is preferably 1 mm or more, particularly preferably 2 to 5 mm. The upper limit differs depending on the size of the bag, but is generally up to 20 mm.

  The first sealing step, the second filling step, and the second sealing step, which are sequentially performed after the first filling step, except that the multi-chamber packaging bag 4C of this example does not have the suction hole 9 (see FIG. 2). The first sealing step, the second filling step, and the second sealing step in the method for manufacturing a package using the first multi-chamber packaging bag 4A are the same. After the first filling step and the first sealing step and the second filling step, the upper sealing portion 13 (surface film 1, split film 2 and back film 3 shown in FIG. The edge part of the opening 7 side is partly heat-sealed to seal the opening 7 (7a, 7b), thereby completing the production of the package.

  Next, another example of the third multi-chamber packaging bag 4C of the present invention will be described based on FIG.

  As shown in FIG. 22, the multi-chamber packaging bag 4C of this example is basically the same as the multi-chamber packaging bag 4C shown in FIG. The two-layer fused portions 5a and 5a entering the inner side do not extend over the entire length of the side edge fused portions 5 and 5, but only a part of the side edge fused portions 5 and 5 on the opening 7 side. ing. In particular, if the two-layer fusion part 5a, 5a that protrudes beyond the three-layer fusion part 5b, 5b is provided within the range where the upper edge fusion part 13 shown in FIG. After the formation of the portion 13, the presence of the two-layer fused portions 5a, 5a is not known. Further, when opening the storage portions 8a and 8b of the multi-chamber packaging bag 4C of this example, the suction disk 11b (see FIG. 19) on the back film 3 side makes it easy to apply the force F described in FIG. In addition, it is preferable to suck the region sandwiched between the two-layer fused portions 5a and 5a of the back film 3.

  In this example, the two-layer fused portions 5a, 5a are formed on both the left and right side edge fused portions 5, 5, but are formed only on either one of the side edge fused portions 5. You can also. In addition, although there is a space between the two-layer fused portions 5a and 5a in this example and the edge of the back surface fill 3 on the opening 7 (7b) side, the back surface is not spaced. The two-layer fused portions 5a and 5a that are continuous from the edge of the opening 3 (7b) side of the film 3 can be used, and the region that is preferably sucked by the suction disk 11a can be widened.

  Next, by making the opening width of the storage portion 8a on the front film 1 side larger than the opening width of the storage portion 8b on the back film 3 side, the storage portion 8a on the front film 1 side can be selectively opened. An experimental example for confirming this will be described.

Experimental Example 1-1
LLDPE (40 μm) / PET (12 μm) / Al (9 μm) / LLDPE (40 μm) layered laminated film with two 50 mm × 100 mm films that are stacked horizontally, and the left and right short side edges After the part was heat-sealed with a width of 10 mm, another sheet of the same film was placed in a horizontally long shape and the left and right short side edges were heat-sealed with a width of 9 mm to create a cylindrical simulated multi-chamber packaging bag. . That is, a simulated multi-chamber packaging bag was created in which the two-layer fused portion at the side edge fused portion entered the inside of the bag by 1 mm from the three-layer fused portion. LLDPE is linear low density polyethylene, PET is polyethylene terephthalate, and Al is aluminum.

  The simulated multi-chamber packaging bag was manually positioned between a pair of suction plates with the unsealed edge portion in the vertical direction, and both suction plates were advanced and adsorbed on the front and back surfaces, respectively. The suction position by the suction disk was set to a position approximately 5 mm below the upper edge at both the left and right central parts of the upper unsealed edge.

  The operation of observing the open state of the storage part was repeated five times by releasing the hands after adsorbing to the simulated multi-chamber packaging bag suction board and moving both suction boards backward. The results are shown in Table 1. In Table 1, the amount of protrusion of the two-layer fusion part from the three-layer fusion part is “sealing width difference”, and the storage part having a large opening width (corresponding to the storage part on the surface film side) is “first chamber”. “, A storage portion having a small opening width (corresponding to a storage portion on the back film side) is referred to as a“ second chamber ”.

Experimental Example 1-2
The same two films as in Experimental Example 1-1 were stacked horizontally and heat-sealed at the left and right short side edges at a width of 20 mm, and then the other same film was stacked horizontally and shorted to the left and right. The side edge was heat sealed with a width of 10 mm to create a cylindrical simulated multi-chamber packaging bag. That is, a simulated multi-chamber packaging bag was created in which the two-layer fused portion at the side edge fused portion entered the inside of the bag by 10 mm from the three-layer fused portion.

  About the said simulation multiple bag, it carried out similarly to Experimental example 1-1, and observed the opening state of the accommodating part. The results are shown in Table 1.

Comparative Experimental Example 1-1
Three sheets of the same film as in Experimental Example 1-1 were stacked horizontally, and the left and right short side edges were heat-sealed with a width of 10 mm to create a cylindrical simulated multi-chamber packaging bag. That is, a simulated multi-chamber packaging bag having no two-layer fusion part protruding from the three-layer fusion part at the side edge fusion part to the inside of the bag was prepared.

  About the said simulation multiple bag, it carried out similarly to Experimental example 1-1, and observed the opening state of the accommodating part. The results are shown in Table 1.

<Fourth multi-chamber packaging bag and method for producing a package using the same>
Next, based on FIGS. 23-27, an example of the 4th multi-chamber packaging bag of this invention and an example of the manufacturing method of the package of this invention using this are demonstrated.

  FIG. 23 is a perspective view of the fourth multi-chamber packaging bag of the present invention, FIG. 24 is an explanatory view of the first filling process using the fourth multi-chamber packaging bag of the present invention, and FIG. 25 is the fourth multi-chamber of the present invention. FIG. 26 is a plan view showing an example of a package manufactured using the fourth multi-chamber packaging bag of the present invention, FIG. These are explanatory drawings of a stiffness measuring device and a measuring method.

  As shown in FIGS. 17 and 18, the multi-chamber packaging bag (second multi-chamber packaging bag) 4D of this example is basically the first multi-chamber packaging bag 4A described in FIGS. However, it does not have the suction hole 9 (see FIG. 2) provided in the first multi-chamber packaging bag 4A. Further, the rigidity of the back film 3 constituting the multi-chamber packaging bag 4D of this example is 2.5 times or more the rigidity of the surface film 1, and the rigidity of the back film 3 and the divided film 2 is substantially equal.

  An example of a method for manufacturing a package using the multi-chamber packaging bag 4D of the present example will be described with a focus on differences from the method for manufacturing a package using the first multi-chamber packaging bag 4A. The stiffness will be further described.

  As shown in FIG. 24, both suction discs 11a and 11b are advanced toward the front film 1 and the back film 3, and near the central portion of the edge of the front film 1 and the back film 3 on the opening 7 side. Each is abutted and sucked. With the front film 1 and the back film 3 being adsorbed to the suction disks 11a and 11b, the suction disks 11a and 11b are moved backward. As a result, the front film 1 and the back film 3 are pulled outward and curved outward, respectively, but in the multi-chamber packaging bag 4D of this example, the divided film 2 follows the back film 3 at the same time. And it can be made to curve convex to the back film 3 side. As a result, the storage portion 8b (see FIG. 23) on the back film 3 side is closed, and only the storage portion 8a on the front film 1 side is opened. The storage portion 8a on the surface film 1 side can be automatically filled.

  The reason why the divided film 2 can be curved in the same direction following the back film 3 as described above is considered to be due to the following force acting.

  When both the suction disks 11a and 11b are retracted by the same distance and the front film 1 and the back film 3 are pulled outward to bend, the back film 3 has higher rigidity than the front film 1, A larger tension acts on the film 3 side than on the surface film 1 side. Therefore, as shown in FIG. 25 (a), when the gripping tools 10 and 10 are gripping the inner edge portions of the side edge fusion portions 5 and 5, the side edge fusion protruding to the inner side. The inner edge portions of the portions 5 and 5 are bent to the back film 3 side by the force F1 pulling to the back film 3 side. In addition, as shown in FIG. 25 (b), when the gripping tools 10 and 10 grip the upper end portions of the side edge fused portions 5 and 5, the gripping tools 10 and 10 protrude upward from the gripping tools 10 and 10. The side edge fusion parts 5 and 5 are twisted by the force F2 that twists inwardly on the surface film 1 side. These forces F1 and F2 act as forces that cause the split film 2 to bend convexly toward the back film 3 side. And when the division | segmentation film 2 has moderate rigidity, it will follow the back surface film 3 with the said force F1, F2, and will bend in the same direction.

  When using the gripping tools 10, 10, it is preferable to apply both of the forces F 1, F 2, but it is possible to cause the divided film 2 to follow the back film 3 and bend by applying either one. . Further, the split film 2 can also be obtained by pulling outward by merely holding the suction film 11a, 11b with the edges on the opening 7 side of the front film 1 and the back film 3 without using the holding tools 10, 10, respectively. Can be curved outward following the back film 3. In this case, the force corresponding to the above F2 acts mainly on the portion where the pulling force is applied by the suction disks 10 and 10, and the divided film 2 follows the back film 3 and curves outward. Become.

  In order to make it easy to maintain the closed state of the storage part 8b on the back film 3 side when the storage part 8a on the surface film 1 side is opened, the split film 2 is curved following the back film 3 as described above. The stiffness of 3 is 2.5 times or more the stiffness of the surface film 1. Further, the rigidity of the back film 3 is more preferably 3 times or more of the rigidity of the surface film 1. If the difference in stiffness between the front film 1 and the back film 3 is too small, the force to bend the split film 2 becomes small, and it is difficult to obtain a reliable split of the split film 2 following the back film 3. Specific rigidity of the surface film 1 and the back film 3 is determined in consideration of practicality as a bag. Generally, the surface film 1 is 0.1 to 12 g, and the back film 3 is 0.25 to 0.25. It is about 30g. Within this stiffness range, a combination is selected in which the stiffness of the surface film 1 is 2.5 times or more, preferably 3 times or more that of the back film 3.

  The split film 2 can be easily bent in the same direction following the back film 3 by having substantially the same rigidity as the back film 3. Even if the rigidity of the divided film 2 is too low or too high, the divided film 2 is less likely to bend in the same direction following the back film 3. Here, the rigidity substantially equivalent to that of the back film 3 means (the rigidity of the back film 3) ± (10% of the rigidity of the back film 3).

  The first sealing step, the second filling step, and the second sealing step, which are sequentially performed after the first filling step, except that the multi-chamber packaging bag 4D of this example does not have the suction hole 9 (see FIG. 2). The first sealing step, the second filling step, and the second sealing step in the method for manufacturing a package using the first multi-chamber packaging bag 4A are the same. After performing the first sealing step and the second filling step subsequent to the first filling step, in the second sealing step, the upper edge fused portion 13 (surface film 1, split film 2 and back film 3 shown in FIG. The edge part of the opening 7 side is partly heat-sealed to seal the opening 7 (7a, 7b), thereby completing the production of the package.

  Next, a stiffness measuring device and a measuring method will be described.

  The stiffness is measured using the measuring apparatus and method described in Japanese Utility Model Publication No. 3-25156, which will be described with reference to FIG.

  First, as shown in FIG. 27A, both ends in the length direction of the test piece 17 cut out from the film to be used are sandwiched and fixed between a pair of left and right clamps 18 and 18, respectively. The test piece 17 has a width of 25 mm and a length of 200 mm.

  The left and right clamps 18 and 18 include lower receiving blocks 18a and 18a and upper pressing blocks 18b and 18b. The test piece 17 is interposed between the receiving blocks 18a and 18a and the pressing blocks 18b and 18b. Insert both ends in the length direction. As shown in the drawing, the clamp position is a position where the length of the test piece 17 exposed between the clamps 18 and 18 becomes 100 mm + 2h. h (mm) is the height of the holding block.

  The left and right clamps 18 and 18 are slidable horizontally in the opposing direction, and the clamps 18 and 18 are brought close to each other until the pressing blocks 18b and 18b sandwich a part of the test piece 17, and FIG. ), A loop is formed at a length of 100 mm of the test piece 17. When the left and right clamps 18 and 18 are brought close to each other, air is blown from the lower side to the central portion of the test piece 17 so that a loop can be correctly formed on the side of the holding blocks 18b and 18b.

  Next, the test piece 17 in which the loop is formed is rotated by 90 ° together with the clamps 18 and 18 so that the center axis of the loop is oriented in the vertical direction, and as shown in FIG. 25 (c), at the top of the loop. A load is applied, the crushing is performed until the distance from the surface of the holding blocks 18b, 18b to the top of the loop reaches 20 mm, and the load f at that time is measured with a load cell. The measured value (unit: g) is stiffness.

  The stiffness in the present invention refers to an average value obtained from 10 measured values obtained by performing the above measurement at room temperature on 10 test pieces 17 cut out from the same film. As a commercially available stiffness measuring machine, there is “Loop Stiffness Tester No. 581” manufactured by Toyo Seiki Seisakusho Co., Ltd.

  Next, an experimental example for confirming that the storage portion 8a on the surface film 1 side can be selectively opened by adjusting the rigidity of the surface film 1, the split film 2, and the back film 3. Will be explained.

Experimental Examples 2-1 to 2-6, Comparative Experimental Examples 2-1 and 2-2
Table 2 shows the films used in this experimental example and comparative experimental example. In addition, the meaning of the code | symbol in the layer structure in Table 2 is as follows. Further, the stiffness is a value calculated by measuring “Loop Stiffness Tester No. 581” manufactured by Toyo Seiki Seisakusho Co., Ltd. according to the explanation based on FIG.

AL9: 9μm thick aluminum foil (made by Sumitomo Light Metal)
PET12: Polyethylene terephthalate with a thickness of 12 μm (“E5200” manufactured by Toyobo)
LLDPE20: 20 μm-thick linear low-density polyethylene (“LL-XMTN” manufactured by Phutamura Chemical)
LLDPE30: 30 μm-thick linear low density polyethylene (“L-105” manufactured by Aicello Chemical)
LLDPE40: 40 μm-thick linear low-density polyethylene (“L-185” manufactured by Aicello Chemical)
LLDPE60: 60 μm-thick linear low-density polyethylene (“L-185” manufactured by Aicello Chemical)

  The films shown in Table 2 were cut into a size of 65 mm × 110 mm, overlapped, and heat-sealed with a width of 10 mm only on the short side to produce an experimental bottomless simulated multi-chamber packaging bag.

  The prepared multi-chamber packaging bag was placed between a pair of suction plates with the unsealed side up and down by hand, and both suction plates were moved forward to be adsorbed. The suction position by the suction disk was set at a position 5 mm lower than the upper edge at the approximate center of the upper unsealed edge for both the front side film and the back side film.

  After the simulated multi-chamber packaging bag was adsorbed to the suction board, the hands were released, and then both suction boards were retracted to observe the open state of the storage section. The same thing was repeated 5 times, and the number of times the storage part on the back film side was opened alone or together with the storage part on the surface film side and the number of times only the storage part on the surface film side was opened were counted.

  Table 3 shows the combination of the films of the simulated multi-chamber packaging bags in each experimental example and the comparative experimental example, the value of (stiffness of the back film) / (stiffness of the surface film), and the count result. In Table 3, “first chamber” means the storage portion on the surface film side, “second chamber” means the storage portion on the back film side, and “back surface ÷ front surface” means (rigidity of back film) ÷ (surface Means the stiffness of the film. “Film No.” in Table 3 corresponds to “Film No.” in Table 1.

  In the above description, the multi-chamber packaging bags 4A to 4D all constitute a four-side sealed bag, but a three-side sealed bag is formed, or a gusset type or a self-standing bag is formed. You can also Further, the front film 1, the split film 2 and the back film 3 have the same shape and size, but one of the front film 1 and the back film 3 has a shorter vertical length than the other, and the storage portion 8a, One of the depths of 8b can be made shallower than the other to cope with the difference in the storage amount of the items to be packaged.

  Moreover, although the method using the holding tools 10 and 10 was demonstrated, it can also carry out without using the holding tools 10 and 10. FIG. For example, the suction disk 11a on the surface film 1 side is fixed at a fixed position, and the edge part on the opening 7 side of the surface film 1 is adsorbed to the suction disk 11a to hold the multi-chamber packaging bags 4A to 4D upright. The package can also be manufactured by changing the suction position of the suction plate 11b on the back film 3 side and moving it back and forth as necessary.

1 Surface film (one film)
2 Split film 3 Back film (the other film)
4A to 4D multi-chamber packaging bags (first to fourth multi-chamber packaging bags)
5 Side edge fusion part 5a Two-layer fusion part 5b Three-layer fusion part 6 Bottom edge fusion part 7, 7a, 7b Opening part 8a, 8b Storage part 9 Suction hole 10 Grasping tool 11a, 11b Suction disc 12 Seal bar 13 ', 13 Upper edge fusion part 14 Hanging hole 15 Zipper 15a Male type 15b Female type 16 Release tool 17 Test piece 18 Clamp 18a Receiving block 18b Holding block

  The present invention relates to a multi-chamber packaging bag having a plurality of storage units used for automatic filling packaging and a method for manufacturing a package by automatic filling using the multi-chamber packaging bag.

  Conventionally, the split film is sandwiched between the front film and the back film forming the front and back surfaces of the bag by dividing the opening between the front film and the back film into two parts. Each side has a bag shape in which a storage portion is formed, a suction hole (surface side suction hole) for sucking the divided film from the front film side, and a suction hole for sucking the divided film from the back film side (Back side suction holes) are multi-chamber packaging bags formed at the edge of the opening side of the front film and the back film, respectively, and a method of manufacturing a package using the same (for example, Patent Document 1).

  More specifically, an article to be packaged is automatically filled by sucking with a suction disk that operates on the front film side and the back film side, respectively, and pulling outward to open each storage unit. The front-side suction hole and the back-side suction hole of the multi-chamber packaging bag are designed to prevent two filling parts from being opened separately at the time of automatic filling and to prevent erroneous filling at the time of automatic filling. is there. For example, the suction disk on the front film side is pressed against the position of the suction hole on the front surface side to suck the divided film, and the suction disk on the back film side is pressed to the position shifted from the suction hole on the back side to suck the back film. When each is pulled outward, the storage part on the back film side can be opened. Contrary to this, the suction film on the front film side is pressed against the position shifted from the suction hole on the front side to suck the front film, and the suction board on the back film side is pressed against the position of the suction hole on the back side to divide. When the film is sucked and pulled outward, the storage portion on the surface film side can be opened.

Japanese Patent No. 3413506

  However, the above-described conventional multi-chamber packaging bag is such that, after the articles to be packaged are filled in both storage parts, the openings of both storage parts are sealed at the same time with a seal bar. After the package is filled, the one storage portion is left unsealed until the other storage portion is completely filled with the package. For this reason, there exists a problem that the one storage part filled with a to-be-packaged object has a larger risk of a foreign material mixing compared with the other storage part sealed immediately after filling with a to-be-packaged object. For example, when filling one container with a first packaged object and then filling the other container with a second package of powder or liquid, the second container splattered when filling the other container It may happen that the second article to be packaged intrudes into one storage part through a slight gap between the unsealed openings.

  In addition, the conventional multi-chamber packaging bag needs to form suction holes in both the front film and the back film in order to selectively open the two storage portions. For this reason, both the suction holes formed in the front film and the suction holes formed in the back film must be adjusted to be in a predetermined position, which increases the number of processes during bag making, such as pitch adjustment of both films. There is. In addition, the suction holes are usually formed in the original film, but the strength of the original film is lowered by the formation of the suction holes, and both the front film and the back film are produced at the time of bag making. There is also a problem that the handleability is lowered.

Furthermore, after filling the package, the edges on the opening side of both storage parts are sealed by heat fusion, but suction holes are formed in both the front and back films, so sealant material etc. There is a problem that it is easy to adhere and deposit. Further, the heat-fusible, although the suction hole may break line so as to be included in the heat-sealed portion, will remain in the trace of both sides as the recess, there is a problem of deteriorating the appearance of the packaging body obtained .

  The present invention enables one storage part to be sealed after filling a packaged object in one storage part and before filling the packaged object into the other storage part, It is a first object of the present invention to be able to suppress the risk of contamination of foreign matter into the storage portion.

Further, the present invention does not use the absorption引孔at all, so the two housing portions can be selectively opened, the pitch adjustment of the front and back both films effort during bag-making due to the formation of suction holes It is possible to alleviate or eliminate the deterioration in handling of the raw film, the adhesion and deposition of the sealant material on the seal bar, and the deterioration of the appearance due to the traces of the suction holes left in the heat sealing portion for sealing. Second purpose.

In order to achieve the above first and second objects, the present invention provides a multi-chamber packaging bag and a method for producing a package using the multi-chamber packaging bag.

The multi-chamber packaging bag of the present invention is a split film in which an opening between one film and the other film is divided in half between one film located on either side of the front and the other film located on the other side. Sandwiched between the divided films, one side of the film and the other side of the film are formed into a bag shape, and the opposing surfaces of the one film and the divided film are respectively low melting point sealant layers, The opposing surfaces of the other film and the divided film are each a high melting point sealant layer whose melting point is 20 ° C. or more higher than that of the low melting point sealant layer, and the opening width of the storage portion on the other film side is the storage portion on the one film side It is a multi-chamber packaging bag characterized by being narrower than the opening width .

Method for producing a packaging Sokarada of the present invention, using a multi-chamber packaging bag of the present invention,
One film and the edge of the other film on the opening side are sucked and pulled outward by the suction disk facing the one film and the suction disk facing the other film, and stored on the one film side A first filling step of opening a part and filling a packaged item;
After the first filling step, the edges of one film, the divided film and the other film on the opening side are overlapped and sandwiched between seal bars, and the high melting point sealant layer is heated to the sealing temperature region of the high melting point sealant layer. The first sealing step of heating the low-melting-point sealant layer to the sealing temperature region of the low-melting-point sealant layer and heat-sealing one film and the edge of the split film on the opening side;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other A second filling step in which the film is sucked with a suction disk facing the film and pulled outward, the other film side opening is opened and the package is filled.
After the second filling step, the edge on the opening side of one film on which the divided film has been heat-sealed and the edge on the opening side of the other film are overlapped and sandwiched between seal bars, and a high melting point sealant layer And a second sealing step of heat-sealing the other film and the edge of the split film on the opening side thereof to heat up to the sealing temperature region of the high-melting-point sealant layer. It is.

  In the present invention, the seal temperature region refers to a temperature region in which the sealant layer exhibits a heat fusion function.

  In the multi-chamber packaging bag of the present invention, each of the facing surfaces of one film and the divided film has a low melting point sealant layer, and the facing surface of the other film and the divided film has a higher melting point than the low melting point sealant layer. It has become. Therefore, by utilizing the difference in the sealing temperature region due to the difference in melting point between the low melting point sealant layer and the high melting point sealant layer, the edge on the opening side of one film and the split film facing each other. Only the part can be selectively heat-sealed. In the method for manufacturing a package according to the present invention, an object to be packaged is first filled in a storage portion on one film side, and immediately after filling, only the edge on the opening side of one film and a divided film is selectively heat-melted. As a result, the storage portion on one film side can be sealed immediately after filling the packaged item, thereby preventing foreign matter from entering.

Moreover, about the multi- chamber packaging bag of this invention , since one film and the division | segmentation film are attracted | sucked integrally after heat-sealing the edge part of one film and the opening part side of a division | segmentation film, a suction hole is formed. The storage part on the other film side can be opened without using it. In the manufacturing method of the package using the multi- chamber packaging bag of the present invention , after heat-sealing the edge of one film and the opening side of the divided film, the procedure is to open the storage part of the other film side. Therefore, the suction hole for opening the storage part on the other film side can be omitted.

In the multi- chamber packaging bag of the present invention , opening of the storage portion on one film side is performed by sucking and pulling the edge on the opening side of one film and the edge on the opening side of the other film. be able to. The opening on the other film side is performed in a state where the divided film is not sucked to either side. However, the opening width of the other film-side storage portion is wider than the opening width of one film side, and the other film-side storage portion is easier to open than the one film-side storage portion. It is possible to preferentially open the storage part on the other film side without opening the storage part on the one film side. Therefore, according to the multi- chamber packaging bag of the present invention and the method of manufacturing a package using the same, the above-mentioned adverse effects caused by the formation of the suction holes can be eliminated without the need for suction holes.

It is explanatory drawing of the combined state of the film which comprises the 1st multi-chamber packaging bag of this invention. It is a perspective view of a reference multi-room packaging bag. It is an expansion cross-sectional view of a reference multi-room packaging bag. It is a perspective view of the state which set the reference multi-chamber packaging bag to the holding tool. It is explanatory drawing of the 1st filling process using a reference multi-chamber packaging bag. It is explanatory drawing of the 1st sealing process using the reference multi-chamber packaging bag. It is explanatory drawing of the 2nd filling process using a reference multi-chamber packaging bag. It is explanatory drawing of the 2nd sealing process using a reference multi-chamber packaging bag. It is a top view which shows an example of the package manufactured using the reference multi-chamber packaging bag. It is a top view which shows the other example of the package manufactured using the reference multi-chamber packaging bag . It is a perspective view of the multi- chamber packaging bag of this invention. It is an expansion cross-sectional view of the multi- chamber packaging bag of this invention. It is explanatory drawing of the 1st filling process using the multi- chamber packaging bag of this invention. It is explanatory drawing of an effect | action when the accommodating part by the side of the surface film of the multi- chamber packaging bag of this invention is open | released. It is a top view which shows an example of the package manufactured using the multi- chamber packaging bag of this invention. It is a perspective view which shows the other example of the multi- chamber packaging bag of this invention .

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings described below, the same reference numerals indicate the same members or parts.

<Manufacturing method of reference multi-chamber packaging bag and package of reference example using the same>
First, with reference to FIGS. 1 to 10, and the reference multi-chamber packaging bag, a manufacturing how packaging Sokarada reference example will be described using the same.

1 is an explanatory view of the combination condition of the film constituting the reference multi-chamber packaging bag 2 is a perspective view of a reference multi-chamber packaging bag 3 is an enlarged cross-sectional view of the reference multi-chamber packaging bag, FIG. 4 is a multi-reference FIG. 5 is an explanatory view of the first filling process using the reference multi-chamber packaging bag, and FIG. 6 is an explanation of the first sealing process using the reference multi-chamber packaging bag. 7 is an explanatory diagram of the second filling process using the reference multi-chamber packaging bag, FIG. 8 is an explanatory diagram of the second sealing process using the reference multi-chamber packaging bag, and FIG. 9 is the reference multi-chamber packaging bag. plan view showing an example of the manufactured package Te, FIG. 10 is a plan view showing another reference example of the manufactured package by using the reference multi-chamber packaging bag.

As shown in FIGS. 1 and 2, the reference multi-chamber packaging bag 4 </ b > A is composed of three films, one film 1, a divided film 2, and the other film 3. One film 1 and the other film 3 are located on the front and back sides of the reference multi-chamber packaging bag 4A, and either one may be on the front side or the back side, but for convenience of explanation, one film 1 is located on the front side of the bag. surface film, the other film 3 is described as a back film disposed on the back side of the bag (also with a multi-chamber packaging bag 4 C of the present invention described below the same).

The surface film 1, the split film 2, and the back film 3 in this reference example have the same shape and size. The multi-chamber packaging bag 4A has a bag shape in which the surface film 1, the divided film 2 and the back film 3 are stacked with the divided film 2 sandwiched between the surface film 1 and the back film 3, and the three sides of the peripheral part are heat-sealed. There is no. Reference numerals 5 and 6 are heat fusion portions formed on three sides of the bag, 5 is a side edge fusion portion, and 6 is a bottom edge fusion portion.

  The divided film 2 bisects the opening 7 between the front film 1 and the back film 3 formed at one edge where the heat fusion is not performed, and the divided film 2 serves as a boundary for the surface film. Storage portions 8a and 8b are respectively formed on the 1 side and the back film 3 side. The storage portions 8a and 8b have openings 7a and 7b which are one and the other of the openings 7 divided into two parts by the divided film 2, respectively. A suction hole 9 penetrating the back film 3 is formed at the center of the edge on the opening 7 (7b) side of the back film 3 so that the split film 2 can be sucked from the back film 3 side. .

The reference multi-chamber packaging bag 4A includes a storage portion 8a on the surface film 1 side formed between the surface film 1 and the divided film 2, and a storage portion on the back film 3 side formed between the back film 3 and the divided film 2. It can be divided into 8b and can be filled with two types of articles. The packaged items are automatically opened without mistakes in the filling location by opening the storage portion 8a on the front film 1 side and the storage portion 8b on the back film 3 side separately (opening the openings 7a and 7b separately). Can be filled.

As shown in FIG. 3, the surface film 1 is obtained by laminating a low-melting-point sealant layer 1b on the inner surface side (housing portion 8a side) of the base material layer 1a, and the back film 3 is formed on the inner surface side of the base material layer 3a. A high melting point sealant layer 3b having a melting point higher than that of the low melting point sealant layer 1b is laminated on the storage unit 8b side. The split film 2 is formed by laminating a low-melting-point sealant layer 2b on one side of the base material layer 2a and laminating a high-melting-point sealant layer 2c on the other side. The high melting point sealant layer 2 c is opposed to the high melting point sealant layer 3 b of the back film 3. The side edge fused portion 5 and the bottom edge fused portion 6 (see FIG. 2) are formed by heat fusion between the high melting point sealant layers 2c and 3b and heat fusion between the low melting point sealant layers 1b and 2b. ing.

Low melting point sealant layer 1b, and 2b, the high-melting sealant layer 2c, and 3b, by shifting the respective sealing temperature region, in a first sealing step to be described later, thermally fusing a refractory sealant layer 2c, and 3b to each other The low-melting-point sealant layers 1b and 2b can be selectively heat-sealed. Thus, the high-melting sealant layer 2c, the melting point of the 3b are low melting point sealant layer 1b, 20 ° C. or higher than 2b melting point of the high Kuna'. If the melting point of the high melting point sealant layers 2c, 3b is too low, the sealing temperature region of the high melting point sealant layers 2c, 3b and the low melting point sealant layers 1b, 2b approach each other, making it difficult to perform the selective thermal fusion. The upper limit is determined from the melting point of a general sealant layer, the melting point of the base material layers 1a, 2a, and 3a. The low-melting-point sealant layers 1b and 2b and the high-melting-point sealant layers 2c and 3b are generally made of the same synthetic resin, but different synthetic resins can also be used. When using a different synthetic resin, the melting point of the high melting sealant layer 2c or 3b having a lower melting point, 20 ° C. or higher than the melting point of the low melting point sealant layer 1b or 2b of the higher melting point higher Kusuru. In addition, in this invention, melting | fusing point means the value measured based on JIS-K-7121.

  As each base material layer 1a, 2a, 3a of the surface film 1, the division | segmentation film 2, and the back surface film 3, the single layer or laminated film of a synthetic resin can be used. As a laminated film, in addition to a laminate of synthetic resin layers, a laminate of a synthetic resin layer and a metal or other inorganic layer or paper layer may be used. Moreover, as each base material layer 1a, 2a, 3a, the film of the respectively same structure may be sufficient, and the film of a different structure may be sufficient.

Next, an example of the manufacturing method of the package of the reference example using the said reference multi-chamber packaging bag 4A is demonstrated.

Production of the package of the reference example using the reference multi-chamber packaging bag. 4A, be performed held in an upright state reference multicompartment package 4A in gripper 10, 10 as shown in FIG. 4, for example it can.

As shown in FIG. 4, the reference multi-chamber packaging bag 4 A is hung by holding the upper portions of the side edge fusion parts 5, 5 with the holding tools 10, 10, and on the outer surfaces of the surface film 1 and the back film 3. It is located between a pair of suction disks 11a and 11b that can be advanced and retracted respectively. As the gripping tools 10, 10, a clip-like tool that holds the side edge fusion parts 5, 5 in between can be used. In addition, both gripping tools 10 and 10 allow the storage portions 8a and 8b to be opened greatly, and in the opposite direction so that excessive force is not applied to the reference multi-chamber packaging bag 4A with the opening. It is preferable to be able to move forward and backward elastically.

The selective opening of the storage portion 8a (see FIG. 2) on the front film 1 side and the storage portion 8b (see FIG. 2) on the back film 3 side is performed by the advancement / retraction and suction of the suction disks 11a and 11b. Although the suction position by the suction disks 11a and 11b will be described later, this suction position can be adjusted by adjusting the position of the reference multi-chamber packaging bag 4A between the suction disks 11a and 11b. However, in order to facilitate the adjustment of the suction position, the suction disks 11a and 11b are preferably movable up and down and left and right along the facing front film 1 or back film 3.

  First, the 1st filling process which opens the accommodating part 8a by the side of the surface film 1 and fills a to-be packaged object is demonstrated.

  As shown in FIG. 5, both suction disks 11 a and 11 b are advanced toward the front film 1 and the back film 3, near the center of the edge of the front film 1 on the opening 7 side, and the back film 3. The suction holes 9 are in contact with each other and sucked. Thereby, the surface film 1 is adsorbed to the suction disk 11a. In addition, the edge on the opening 7 side of the divided film 2 is sucked and sucked through the suction hole 9 to the suction disk 11b, and the periphery of the suction hole 9 of the back film 3 is also sucked. When the suction disks 11a and 11b are moved backward in this state, the front film 1 and the back film 3 sucked together with the divided film 2 are pulled outward, and the opening of the storage portion 8a on the front film 1 side is pulled. The part 7a is expanded. At this time, the opening 7b of the storage portion 8b (see FIG. 2) on the back film 3 side is closed by the back film 3 being attracted to the suction disk 11b together with the divided film 2, so that erroneous insertion is prevented. The packaged object can be automatically filled into the storage portion 8a on the surface film 1 side reliably.

As described above, the gripper 10, 10 when in the opposing direction keep the elastically retractable, when both the suction plate 11a, the surface film 1 and the back film 3 is retracted to 11b was Tsu tensile outwardly, both It is possible to prevent the gripping tools 10 and 10 from elastically moving in the opposite direction and applying excessive tension to the reference multi-chamber packaging bag 4A. Further, after filling the storage portion 8a on the surface film 1 side with the article to be packaged, if both suction discs 10a, 10b are advanced, both gripping tools 10, 10 are elastically retracted, and accordingly the storage portion 8a. The opening 7a can be returned to the closed state.

  Next, the 1st sealing process which seals the accommodating part 8a by the side of the surface film 1 filled with the to-be-packaged object is given.

In the first sealing step, after the first filling step, as shown in FIG. 6, the edge portions on the opening 7 side of the surface film 1, the divided film 2 and the back film 3 are overlapped with the seal bars 12, 12. It is performed by sandwiching and heat-sealing the edges of the surface film 1 and the divided film 2 on the opening 7 side. At this time, not only the front film 1 and the divided film 2 but also the back film 3 is sandwiched between the seal bars 12 and 12. However, without heating the high melting point sealant layers 2c and 3b described with reference to FIG. 3 to the sealing temperature region of the high melting point sealant layers 2c and 3b , the low melting point sealant layers 1b and 2b are formed on the low melting point sealant layers 1b and 2b. By heating to the sealing temperature region, the low melting point sealant layer 1b, 3b, without thermally fusing the back film 3 facing the high melting point sealant layers 2c, 3b and the edge of the split film 2 on the opening 7 side. Only the edge on the opening 7 side of the surface film 1 and the split film 2 facing 2b can be heat-sealed. That is, it is possible to seal only the storage portion 8a on the front film 1 side without sealing the storage portion 8b on the back film 3 side.

  Next, the 2nd filling process which opens the accommodating part 8b by the side of the back film 3 and fills a to-be-packaged object is performed.

  After the first sealing step, the second filling step is performed by sucking the front film 1 and the back film 3 with the suction disks 11a and 11b and pulling them outward as shown in FIG. In FIG. 7, 13 ′ is an upper edge fusion part (a heat fusion part between edges on the opening 7 side of the surface film 1 and the divided film 2) formed in the first sealing step.

  The suction disk 11a facing the surface film 1 is brought into contact with the vicinity of the central portion of the edge of the surface film 1 on the opening 7 side where the upper edge fused portion 13 'is formed, and the suction facing the back film 3 The board 11b is brought into contact with the edge on the opening 7 side of the back film 3 which is displaced from the position of the suction hole 9, and sucked respectively. When the front surface film 1 and the rear surface film 3 are adsorbed by the suction disks 11a and 11b, respectively, when the suction disks 11a and 11b are moved backward, the divided film in which the surface film 1 is joined by the upper edge fused portion 13 ′. 2, the back film 3 is pulled outward, and the opening 7b of the storage portion 8b on the back film 3 side is opened. At this time, since the opening 7a of the storage portion 8a on the front film 1 side is sealed by the upper edge fused portion 13 ', the packaging material is securely stored on the back film 3 side while preventing erroneous insertion. The portion 8b can be automatically filled.

If the gripping tools 10 and 10 are elastically movable back and forth in the opposite direction, the second filling step also advances and retreats in the same manner as the first filling step, and an excessive load is applied to the reference multi-chamber packaging bag 4A. Can be prevented from being added.

  Furthermore, the 2nd sealing process which seals the accommodating part 8b by the side of the back film 3 filled with the to-be-packaged object is given.

In the second sealing step, after the second filling step, the edge portion on the opening 7 side of the surface film 1 and the divided film 2 joined by the upper edge fused portion 13 ′, and the opening portion 7 side of the back film 3 As shown in FIG. 8, the film is sandwiched between seal bars 12 and 12, and the edges on the opening 7 side of the back film 3 and the divided film 2 are heat-sealed. In the second sealing step, the high melting point sealant layers 2c and 3b described in FIG. 3 are heated to the sealing temperature region of the high melting point sealant layers 2c and 3b . Thereby, the edge part by the side of the opening part 7 of the back film 3 and the division | segmentation film 2 which the high melting point sealant layers 2c and 3b oppose is heat-sealed, and the accommodating part 8b by the side of the back film 3 is sealed. At the same time, the low-melting-point sealant layers 1b and 2b having a lower melting point than the high-melting-point sealant layers 2c and 3b are also heated to the seal temperature region, and the low-melting-point sealant layers 1b and 2b are opposed to the surface film 1 facing each other. In other words, the edge of the divided film 2 on the opening 7 side is reheat-sealed.

  In the second sealing step, as shown in FIG. 9, the upper edge fused portion 13 that encloses the suction hole 9 is formed to seal the opening 7 (7a, 7b), and the manufacturing of the package is completed. To do. The upper edge fused portion 13 shown in FIG. 9 is a portion in which the edge portions on the opening 7 side of the surface film 1, the divided film 2, and the back film 3 are thermally fused to each other.

  By the way, in the package shown in FIG. 9, the trace of the suction hole 9 remains on the upper edge fused portion 13 as a concave portion, although only on the back film 3 side. Therefore, as shown in FIG. 10, after forming the upper edge fused portion 13, the suction hole 9 can be punched out to form a single through hole containing the suction hole 9 as the hanging hole 14. preferable. The suspension hole 14 is for hanging and displaying the manufactured package at a store. By removing the trace of the suction hole 9 by the suspension hole 14, it is possible to eliminate the uncomfortable feeling. The suspension hole 14 is formed as a through hole that is the same as or larger than the suction hole 9, and has an elliptical shape, a gourd shape, an egg shape, a rice ball shape, etc. in addition to the circular hole shown in the figure. You can also.

< The multi-chamber packaging bag of this invention and the manufacturing method of the package of this invention using this >
Next, based on FIGS. 11 to 16, and an example of a multi-chamber packaging bag of the present invention, an example of a method of manufacturing a package of the present invention using the same will be described.

Figure 11 is a multi-chamber perspective view of the packaging bag of the present invention, FIG 12 is an enlarged cross-sectional view of a multi-chamber packaging bag of the present invention, FIG 13 is an explanatory view of a first filling step using a multi-chamber packaging bag of the present invention FIG. 14 is an explanatory view of the action when the storage section on the surface film side of the multi- chamber packaging bag of the present invention is opened, and FIG. 15 shows an example of a package manufactured using the multi- chamber packaging bag of the present invention . FIG . 16 is a perspective view showing another example of the multi- chamber packaging bag of the present invention.

As shown in FIGS. 11 and 12, a multi-chamber packaging bag 4 C of the present invention is basically the same as the reference multi-chamber packaging bag 4A described in FIGS. 1 to 3, reference multicompartment packaging It does not have the suction hole 9 (refer FIG. 2) provided in the bag 4A. Further, the side edge fused portions 5 and 5 include three layers fused portions 5b and 5b obtained by joining the three members of the surface film 1, the divided film 2 and the back film 3, and the back film 3 and the divided film 2. It is comprised by the two-layer melt | fusion part 5a, 5a which joined. In the multi-chamber packaging bag 4C of the present invention , the two-layer fused portions 5a and 5a are located inside the bag from the three-layer fused portions 5b and 5b over the entire length of the left and right side edge fused portions 5 and 5. I'm stuck in. As a result, the opening width of the storage portion 8b on the back film 3 side is narrower than the opening width of the storage portion 8a on the front film 1 side. With such an opening width, as will be described later, when opening the storage portion 8a on the surface film 1, the storage portion on the back film 3 side without sucking the divided film 2 from the back film 3 side. The storage part 8a on the surface film 1 side can be preferentially opened without opening 8b.

  In this example, both the right and left side edge fused portions 5 and 5 are formed by two-layer fused portions 5a and 5a inside the three-layer fused portions 5b and 5b. Only the edge fused portion 5 may be formed by forming the two-layer fused portion 5a inside the three-layer fused portion 5b.

The multi-chamber packaging bag 4C according to the present invention has the back film 3 and the divided film 2 overlapped, the two-layer fusion portions 5a and 5a, and the three-layer fusion portions 5b and 5b adjacent to the two-layer fusion portions 5a and 5a. Can be manufactured easily by heat-sealing a portion corresponding to a part or the whole of the film, and then superimposing the surface film 1 and heat-sealing the regions corresponding to the three-layer fused portions 5b and 5b. it can.

Next, an example of a method for manufacturing a package using the multi-chamber packaging bag 4C will be described focusing on differences from the method for manufacturing a package using the reference multi-chamber packaging bag 4A.

As shown in FIG. 13 , in the first filling step of opening the storage portion 8a on the surface film 1 side and filling the object to be packaged, the surface film 1 and the back film 3 are sucked and adsorbed by the suction disks 11a and 11b. This is done by pulling outward to open the storage portion 8a on the surface film 1 side.

First, both the suction plate 11a, a 11b, is advanced towards the surface film 1 and the back film 3, near the center of the edge of the surface film 1 and the opening 7 side of the back surface film 3 Niso respectively abut Let it suck. With the front film 1 and the back film 3 being adsorbed to the suction disks 11a and 11b, the suction disks 11a and 11b are moved backward. Thereby, the surface film 1 and the back surface film 3 are pulled outward, and are each curved outward and convex.

By the way, as described above, the storage portion 8a on the front film 1 side is wider than the storage portion 8b on the back film 3 side and is easily opened. Therefore, the front film 1 is divided. The storage portion 8a on the surface film 1 side is opened by being curved outwardly away from the film 2. Further, since the opening portion 8b on the back film 3 side has a narrower opening width than the storage portion 8a on the front film 1 side and is difficult to be opened, the storing portion 8a on the front film 1 side is opened. Even if it does, the accommodating part 8b (refer FIG. 11 ) by the side of the back film 3 maintains the closed state, without opening. Therefore, only the storage portion 8a on the surface film 1 side is opened, and an object to be packaged can be automatically filled into the storage portion 8a on the surface film 1 side reliably while preventing erroneous insertion.

More specifically, in the side edge fused portions 5 and 5, when the two-layer fused portions 5a and 5a enter the inside of the bag from the three-layer fused portions 5b and 5b, as shown in FIG. By pulling the film 3 outward, a force F that pulls the split film 2 in the same direction as the back film 3 acts on the inner ends of the two-layer fused portions 5a and 5a. For this reason, the division | segmentation film 2 follows the back film 3, and curves to the back film 3 side convexly, and the accommodating part 8b (refer FIG. 2) by the back film 3 side remains in the closed state. On the other hand, since the back film 3 and the divided film 2 are pulled and curved in the opposite direction, the front film 1 is opened in the storage portion 8a on the front film 1 side.

  The amount of the two-layer fused portions 5a, 5a entering the inside of the bag from the three-layer fused portions 5b, 5b makes a difference in the ease of opening between the storage portions 8a, 8b, and the force F is easily applied. Therefore, it is preferably 1 mm or more, particularly preferably 2 to 5 mm. The upper limit differs depending on the size of the bag, but is generally up to 20 mm.

The first sealing step, the second filling step, and the second sealing step, which are sequentially performed after the first filling step, except that the multi-chamber packaging bag 4C of the present invention does not have the suction hole 9 (see FIG. 2). The same as the first sealing step, the second filling step, and the second sealing step in the method of manufacturing a package using the reference multi-chamber packaging bag 4A. After the first filling step and the first sealing step and the second filling step, the upper sealing portion 13 (surface film 1, split film 2 and back film 3 shown in FIG. The edge part of the opening 7 side is partly heat-sealed to seal the opening 7 (7a, 7b), thereby completing the production of the package.

Next, with reference to FIG. 16, a description will be given of another example of a multi-chamber packaging bag 4C of the present invention.

As shown in FIG. 16 , the multi-chamber packaging bag 4C of the present invention is basically the same as the multi-chamber packaging bag 4C shown in FIG. The two-layer fused portions 5a and 5a entering the inner side do not extend over the entire length of the side edge fused portions 5 and 5, but only a part of the side edge fused portions 5 and 5 on the opening 7 side. ing. In particular, if the two-layer fusion part 5a, 5a protruding from the three-layer fusion part 5b, 5b is provided within the range where the upper edge fusion part 13 shown in FIG. After the formation of the portion 13, the presence of the two-layer fused portions 5a, 5a is not known. Further, when opening the storage portions 8a, 8b of the multi-chamber packaging bag 4C of the present invention , the suction disk 11b (see FIG. 13 ) on the back film 3 side makes it easy to apply the force F described in FIG. In addition, it is preferable to suck the region sandwiched between the two-layer fused portions 5a and 5a of the back film 3.

  In this example, the two-layer fused portions 5a, 5a are formed on both the left and right side edge fused portions 5, 5, but are formed only on either one of the side edge fused portions 5. You can also. In addition, although there is a space between the two-layer fused portions 5a and 5a in this example and the edge of the back surface fill 3 on the opening 7 (7b) side, the back surface is not spaced. The two-layer fused portions 5a and 5a that are continuous from the edge of the opening 3 (7b) side of the film 3 can be used, and the region that is preferably sucked by the suction disk 11a can be widened.

  Next, by making the opening width of the storage portion 8a on the front film 1 side larger than the opening width of the storage portion 8b on the back film 3 side, the storage portion 8a on the front film 1 side can be selectively opened. An experimental example for confirming this will be described.

Experimental Example 1-1
LLDPE (40 μm) / PET (12 μm) / Al (9 μm) / LLDPE (40 μm) layered laminated film with two 50 mm × 100 mm films that are stacked horizontally, and the left and right short side edges After the part was heat-sealed with a width of 10 mm, another sheet of the same film was placed in a horizontally long shape and the left and right short side edges were heat-sealed with a width of 9 mm to create a cylindrical simulated multi-chamber packaging bag. . That is, a simulated multi-chamber packaging bag was created in which the two-layer fused portion at the side edge fused portion entered the inside of the bag by 1 mm from the three-layer fused portion. LLDPE is linear low density polyethylene, PET is polyethylene terephthalate, and Al is aluminum.

  The simulated multi-chamber packaging bag was manually positioned between a pair of suction plates with the unsealed edge portion in the vertical direction, and both suction plates were advanced and adsorbed on the front and back surfaces, respectively. The suction position by the suction disk was set to a position approximately 5 mm below the upper edge at both the left and right central parts of the upper unsealed edge.

  The operation of observing the open state of the storage part was repeated five times by releasing the hands after adsorbing to the simulated multi-chamber packaging bag suction board and moving both suction boards backward. The results are shown in Table 1. In Table 1, the amount of protrusion of the two-layer fusion part from the three-layer fusion part is “sealing width difference”, and the storage part having a large opening width (corresponding to the storage part on the surface film side) is “first chamber”. “, A storage portion having a small opening width (corresponding to a storage portion on the back film side) is referred to as a“ second chamber ”.

Experimental Example 1-2
The same two films as in Experimental Example 1-1 were stacked horizontally and heat-sealed at the left and right short side edges at a width of 20 mm, and then the other same film was stacked horizontally and shorted to the left and right. The side edge was heat sealed with a width of 10 mm to create a cylindrical simulated multi-chamber packaging bag. That is, a simulated multi-chamber packaging bag was created in which the two-layer fused portion at the side edge fused portion entered the inside of the bag by 10 mm from the three-layer fused portion.

  About the said simulation multiple bag, it carried out similarly to Experimental example 1-1, and observed the opening state of the accommodating part. The results are shown in Table 1.

Comparative Experimental Example 1-1
Three sheets of the same film as in Experimental Example 1-1 were stacked horizontally, and the left and right short side edges were heat-sealed with a width of 10 mm to create a cylindrical simulated multi-chamber packaging bag. That is, a simulated multi-chamber packaging bag having no two-layer fusion part protruding from the three-layer fusion part at the side edge fusion part to the inside of the bag was prepared.

  About the said simulation multiple bag, it carried out similarly to Experimental example 1-1, and observed the opening state of the accommodating part. The results are shown in Table 1.

In the above description, the multi-chamber packaging bag 4 C of the present invention constitutes a four-side sealed bag, but it is assumed that a three-side sealed bag is formed, a gusset type or a self-supporting bag. You can also Further, the front film 1, the split film 2 and the back film 3 have the same shape and size, but one of the front film 1 and the back film 3 has a shorter vertical length than the other, and the storage portion 8a, One of the depths of 8b can be made shallower than the other to cope with the difference in the storage amount of the items to be packaged.

Moreover, although the method using the holding tools 10 and 10 was demonstrated, it can also carry out without using the holding tools 10 and 10. FIG. For example, the suction plate 11a of the surface film 1 side Leave fixed at a predetermined position, making a multi-chamber packaging bag 4 C of the present invention by adsorbing the edge of the opening 7 side of the surface film 1 to the suction plate 11a The package can also be manufactured by holding and holding the suction film 11b on the back film 3 side forward and backward by changing the suction position as necessary.

1 Surface film (one film)
2 split film
2a base material layer
2b low melting point sealant layer
2c High melting point sealant layer 3 Back film (the other film)
3a base material layer
3b high melting point sealant layer 4A reference multi-chamber packaging bag
4C Multi-chamber packaging bag of the present invention 5 Side edge fusion part 5a Two-layer fusion part 5b Three-layer fusion part 6 Bottom edge fusion part 7, 7a, 7b Opening part 8a, 8b Storage part 9 Suction hole 10 Holding tool 11a, 11b Suction board 12 Seal bar 13 ', 13 Upper edge fusion part 14 Hanging hole

Claims (2)

  The split film is sandwiched between the one film located on either side of the front and back and the other film located on the other side by dividing the opening between the one film and the other film, with the split film as a boundary. , One film side and the other film side are each formed into a bag shape, the opposing surfaces of the one film and the divided film are the low melting point sealant layer, and the other film and the opposing surface of the divided film, respectively Is a high melting point sealant layer whose melting point is 20 ° C. or more higher than that of the low melting point sealant layer, and the opening width of the storage portion on the other film side is narrower than the opening width of the storage portion on the one film side. Multi-chamber packaging bag characterized. Using the multi-chamber packaging bag according to claim 1,
One film and the edge of the other film on the opening side are sucked and pulled outward by the suction disk facing the one film and the suction disk facing the other film, and stored on the one film side A first filling step of opening a part and filling a packaged item;
After the first filling step, the edges of one film, the divided film and the other film on the opening side are overlapped and sandwiched between seal bars, and the high melting point sealant layer is heated to the sealing temperature region of the high melting point sealant layer. The first sealing step of heating the low-melting-point sealant layer to the sealing temperature region of the low-melting-point sealant layer and heat-sealing one film and the edge of the split film on the opening side;
After the first sealing step, the edge on the opening side of one film, to which the divided film is heat-sealed, and the edge on the opening side of the other film, the suction disk facing the one film and the other A second filling step in which the film is sucked with a suction disk facing the film and pulled outward, the other film side opening is opened and the package is filled.
After the second filling step, the edge on the opening side of one film on which the divided film has been heat-sealed and the edge on the opening side of the other film are overlapped and sandwiched between seal bars, and a high melting point sealant layer And a second sealing step of heat-sealing the other film and the edge of the split film on the opening side thereof to heat up to the sealing temperature region of the high-melting-point sealant layer. .

Images