JP2009190777A - Multi-chamber packaging bag for automatic filling, and method for manufacturing package using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a suction hole with only one position in the suction hole for selectively opening two storing parts formed on the surface film side and the back surface film side by a partitioning film as a boundary. <P>SOLUTION: The rigidity of the surface film 1 is made at least 2.5 times of the rigidity of the back surface film 3, and the rigidity of the surface film 1 and the rigidity of the partitioning film 2 are made equal. When the edge parts of the opening part 6 sides of the surface film 1 and the back surface film 3 are pulled outside, a larger force is required to pull and bend the surface film 1 outside than that required to pull and bend the back surface film 3. As the result, a force to bend the partitioning film 2 convex to the surface film 1 side is acted to the partitioning film 2. In addition, as the rigidity of the partitioning film 2 is approximately equal to the rigidity of the surface film 1, the partitioning film 2 can be bent to follow the surface film 1 by the force to bend, and only the opening part 6b on the back surface film 3 side is opened. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a multi-chamber packaging bag having a plurality of storage portions and a method for manufacturing a package 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 hole) is formed in a multi-chamber packaging bag for automatic filling formed on the edge part on the opening side of the front film and the back film, and a manufacturing method of a package using the same. (For example, refer to 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 conventional multi-chamber packaging bag for automatic filling 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. .

  In the present invention, the suction hole for selectively opening the two storage portions is required only at either one of the front and back sides, and it is necessary to adjust the pitch between the front and back films, and at the time of bag making accompanying the formation of the suction holes. The purpose is to alleviate the deterioration of the handling due to the anti-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 part for sealing. .

  In order to achieve the above object, the present invention bisects the opening between one film and the other film between one film located on either side of the front and the other film located on the other side. The split film is sandwiched between the two films, and the split film is sandwiched between the film and the other film to form a bag. The stiffness of one film is 2 times the stiffness of the other film. .5 times or more, and the rigidity of one film and the divided film is substantially equal, and the edge of the opening side of the other film has a suction hole for sucking the divided film from the other film side. The present invention provides a multi-chamber packaging bag for automatic filling characterized by being formed.

  The multi-chamber packaging bag for automatic filling according to the present invention includes that the rigidity of one film and the divided film is three times or more that of the other film.

Moreover, the present invention uses the above-described multi-chamber packaging bag for automatic filling,
The one film and the edge of the other film on the opening side are respectively sucked with a suction disk facing the one film and a suction disk facing the other film and pulled outwardly, Each of the other film is curved outwardly, the divided film is curved in the same direction following the one film, and only the other film side storage portion is opened to fill the package;
While sucking the edge on the opening side of one film with the suction disk facing the one film, the suction disk facing the other film through the suction hole at the edge on the opening side of the divided film By suctioning and pulling outwards, one film, the split film and the other film are curved outward, respectively, and only the storage part on one film side is opened to fill the package. The present invention also provides a method for producing a package characterized by having a process.

In the method for manufacturing a package according to the present invention, the process of opening only the storage part on the other film side and filling the object to be packaged is performed in a state where the multi-chamber packaging bag is upright, Gripping the upper part of the heat-sealing part with a gripping tool, leaving the inner edge part of the heat-sealed part,
The process of opening only the storage part on the other side of the film and filling the object to be packaged, with the multi-chamber packaging bag upright, holding the upper part of the heat fusion part on both sides, leaving the upper end part Gripping with,
After filling the other film-side storage part and one film-side storage part with an object to be packaged, after heat-sealing the edge part on the opening side and forming a heat-sealing part containing the suction hole , Forming a single through hole including a suction hole in the heat fusion part as a hanging hole,
Is included as a preferred embodiment thereof.

  In addition, in the manufacturing method of the package according to the present invention, the step of opening the other film-side storage portion and filling the object to be packaged, and the one film-side storage portion being opened and filling the object to be packaged It is sufficient to select which of the processes is performed first according to the package. In the method for manufacturing a package according to the present invention, having both the above steps means that at least both steps are performed, and the order thereof is not limited.

  According to the present invention, the storage part on one film side sucks the edge part on the opening part side of one film, and the edge part on the opening part side of the divided film from the other film side via the suction hole. It can be released by sucking and pulling.

  On the other hand, the opening on the other film side can be opened by sucking and pulling the edge on the opening side of one film and the edge on the opening side of the other film. The opening on the other 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, one film has higher rigidity than the other film. Therefore, a larger force is required to bend the film outward to bend the film, and as a result, a force to bend the convex film to the one film side acts on the divided film. In addition, since the split film has almost the same rigidity as one film, the split film can be bent following the one film by the above-described force to be bent, thereby storing the one film side. The part is kept closed, and only the other film side storage part is opened.

  As described above, according to the present invention, by providing the suction hole only on the other film side, the storage part on one film side and the storage part on the other film side can be selectively opened. Therefore, it takes time and effort to adjust the pitch of both the front and back films, a decrease in handling properties of the original film due to the formation of suction holes, the adhesion and deposition of the sealant material on the seal bar, and the heat-sealing part for sealing. Any deterioration in the appearance due to the traces of the suction holes can be reduced by half compared to the conventional case where two suction holes are required.

  Hereinafter, the present invention will be further described with reference to the drawings.

  First, based on FIGS. 1-8, an example of the manufacturing method of the multi-chamber packaging bag which concerns on the 1st example of this invention, and the package of this invention using this is demonstrated.

  FIG. 1 is an explanatory view of a combined state of films constituting the multi-chamber packaging bag according to the first example of the present invention, FIG. 2 is a perspective view of the multi-chamber packaging bag according to the first example of the present invention, and FIG. The perspective view of the state which set the multi-chamber packaging bag which concerns on the 1st example of this invention to the holding | gripping tool, FIG. 4 is shown to the accommodating part of the other film side of the multi-chamber packaging bag which concerns on the 1st example of this invention. FIG. 5 is an explanatory view when filling an object to be packaged, FIG. 5 is an explanatory view of an action when the other film side storage portion of the multi-chamber packaging bag according to the first example of the present invention is opened, and FIG. FIG. 7 is a plan view showing an example of a manufactured package, and FIG. 8 is a manufactured package. FIG. 7 is an explanatory view of a multi-chamber packaging bag according to an example of FIG. It is a top view which shows the other example of a body. 1-8, the same code | symbol shows the same member or site | part.

  As shown in FIG. 1 and FIG. 2, the multi-chamber packaging bag 4 of this example 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 multi-chamber packaging bag 4, which may be either the front surface or the back surface, but for convenience of explanation, the one film 1 is located on the front surface side of the bag. A film and the other film 3 are demonstrated as a back film located in the back surface side of a bag.

  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 4 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 portion are heat-sealed. There is no. Reference numerals 5a to 5c denote heat-sealed portions formed on three sides of the bag.

  The split film 2 bisects the opening 6 between the front film 1 and the back film 3 formed at one edge where the heat fusion is not performed, and the split film 2 serves as a boundary. 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 6a and 6b which are one and the other of the openings 6 divided into two parts by the divided film 2, respectively. A suction hole 7 penetrating the back film 3 is formed at the center of the edge on the opening 6 (6b) side of the back film 3 so that the split film 2 can be sucked from the back film 3 side. .

  The rigidity of the surface film 1 of the multi-chamber packaging bag 4 of the present invention is 2.5 times or more the rigidity of the back film 3, and the rigidity of the divided film 2 is substantially equal to that of the surface film 1. With such rigidity, as will be described later, when opening the storage portion 8b on the back film 3 side, the storage portion 8a on the surface film 1 side even if the divided film 2 is not sucked from the surface film 1 side. Can be kept closed without being opened.

  As the front film 1, the split film 2, and the back film 3 constituting the multi-chamber packaging bag 4 of the present invention, a single layer or a 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 a paper layer may be used. The surface film 1 and the divided film 2 are preferably composed of the same film so that the rigidity can be easily uniformed, but may be films of different materials, thicknesses, and layer configurations. Moreover, the difference in the rigidity of the surface film 1 and the division | segmentation film 2 and the rigidity of the back surface film 3 can be obtained by adjusting thickness, a material, a layer structure, etc.

  In addition, although the rigidity in this invention is explained in full detail later, it is the value measured using the measuring apparatus and method of Japanese Utility Model Publication No. 3-25156, and a unit is a gram (g).

  The multi-chamber packaging bag 4 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 item is automatically opened without mistakes in the filling location by separately opening the storage portion 8a on the front film 1 side and the storage portion 8b on the back film 3 side (opening the openings 6a and 6b separately). Can be filled.

  Next, an example of a method for manufacturing a package using the multi-chamber packaging bag 4 will be described.

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

  First, as shown in FIG. 3, the multi-chamber packaging bag 4 is hung by holding the upper portions of the heat-sealing portions 5 a, 5 c on both sides with the holding tools 10, 10, and the outer surfaces of the surface film 1 and the back film 3. It is located between a pair of suction discs 9a and 9b that can move forward and backward. As the gripping tools 10 and 10, clip-shaped ones that sandwich and hold the heat fusion portions 5a and 5c on both sides can be used. In addition, both gripping tools 10 and 10 are capable of opening the storage portions 8a and 8b to a large extent, and are elastic in the opposing direction so that an excessive force is not applied to the multi-chamber packaging bag 4 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 and retraction and suction of the suction disks 9a and 9b. Although the suction position by the suction disks 9a and 9b will be described later, the adjustment of the suction position can also be performed by adjusting the position of the multi-chamber packaging bag 4 between the suction disks 9a and 9b. However, in order to facilitate the adjustment of the suction position, the suction disks 9a and 9b are preferably movable up and down and left and right along the opposing front film 1 or back film 3.

  A method for opening the storage portion 8b on the back film 3 side and filling the article to be packaged will be described.

  As shown in FIG. 4, both suction discs 9 a and 9 b are advanced toward the front film 1 and the back film 3, and the central portion of the edge on the opening 6 side of the front film 1 and the back film 3. The suction is performed by contacting the edge on the side of the opening 6 shifted from the suction hole 7. With the front film 1 and the back film 3 adsorbed to the suction disks 9a and 9b, the suction disks 9a and 9b are moved backward. As a result, the front film 1 and the back film 3 are pulled outward and curved outward, respectively. At the same time, the divided film 2 follows the front film 1 and protrudes toward the front film 1 side. Can be curved. As a result, the storage portion 8a (see FIG. 2) on the front film 1 side is closed, and only the storage portion 8b on the back film 3 side is opened. The storage portion 8b on the back film 3 side can be automatically filled.

  The reason why the split film 2 can be curved in the same direction following the surface film 1 as described above is considered to be due to the following force acting.

  Usually, the gripping tools 10 and 10 are spaced apart from the opening 6 so as to be able to form a heat-sealing part 5d, which will be described later, following the filling of the article to be packaged. The position which left the upper end part of the landing parts 5a and 5c is gripped. That is, the heat fusion parts 5 a and 5 c are gripped in a state where at least the region to be the heat fusion part 5 d protrudes upward from the gripping tools 10 and 10. Further, both suction disks 9 a and 9 b are provided at positions for sucking a region between the gripping position by the gripping tools 10 and 10 and the opening 6.

  On the other hand, when the front film 1 and the back film 3 are sucked by the suction disks 9a and 9b, the both suction disks 9a and 9b are retracted by the same distance, and the front film 1 and the rear film 3 are pulled outward to bend. Since the surface film 1 has higher rigidity than the back film 3, a larger tension acts on the front film 1 side than on the back film 3 side. As described above, when the gripping tools 10 and 10 are gripping the upper end portions of the heat fusion portions 5a and 5c, as shown in FIG. A force F1 that twists the heat-bonding portions 5a and 5b protruding upward inwardly on the back film 3 side acts. This force F1 acts as a force for convexly bending the divided film 2 toward the surface film 1, and when the divided film 2 has an appropriate rigidity, the force F1 causes the surface film 1 without difficulty. It follows and curves in the same direction.

  Further, as shown in FIG. 5 (b), when the gripping tools 10 and 10 are made to grip the inner edge portions of the heat fusion portions 5a and 5b, the heat fusion portions 5a protruding to the inner side. , 5c can be bent to the surface film 1 side by the force F2 pulling to the surface film 1 side. This force F2 also acts as a force that causes the divided film 2 to bend convexly toward the surface film 1 side.

  When the gripping tools 10 and 10 are used, the divided film 2 is basically curved in the same direction following the surface film 1 by applying the force F1, but both the forces F1 and F2 are used. It is also possible to cause the divided film 2 to follow the surface film 1 and bend by acting only the force F2. Also, the split film 2 can be obtained by pulling outward by simply holding the suction film 9a, 9b with the edges on the opening 6 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 surface film 1. In this case, the force corresponding to F1 acts mainly on the portion where the tensile force is applied by the suction disks 10 and 10, and the divided film 2 follows the surface film 1 and curves outward. Become.

  In addition, as other factors that allow the divided film 2 to be curved in the same direction following the surface film 1, there can be mentioned distortion during bag making and the influence of static electricity. More specifically, the front film 1, the divided film 2, and the back film 3 are each drawn out from the raw roll and heat-sealed to form a bag. At this time, the back film 3 having low rigidity is more easily stretched than the surface film 1 and split film 2 having high rigidity, and is formed in a stretched state and then contracted, whereby the surface film 1 and split film 2 are formed. It tends to become looser than the back film 3. And it is thought that this slack tends to bend the division film 2 in the same direction following the surface film 1. Moreover, adhesion of the surface film 1 and the divided film 2 due to static electricity also acts in a direction that facilitates bending both in the same direction.

  In order to make it easy to maintain the state in which the storage portion 8a on the surface film 1 side is closed when the storage portion 8b on the back surface film 3 side is opened and the storage portion 8b on the back surface film 3 side is opened as described above. The rigidity of the film 1 is 2.5 times or more that of the back film 3. Further, the rigidity of the front film 1 is more preferably 3 times or more the rigidity of the back film 3. If the difference in stiffness between the front film 1 and the back film 3 is too small, the force to bend the divided film 2 becomes small, and it is difficult to obtain a reliable curve of the divided film 2 following the surface film 1. 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 0.25 to 30 g, and the back film 3 is 0.1 to 0.1. It is about 12g. 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 division film 2 has a rigidity substantially equal to that of the surface film 1, so that it is easy to bend in the same direction following the surface film 1. Even if the rigidity of the surface film 1 is too low or too high, the divided film 2 is less likely to bend in the same direction following the surface film. Here, the rigidity substantially equivalent to that of the surface film 1 means (the rigidity of the surface film 1) ± (the rigidity of 10% of the rigidity of the surface film 1).

  When the suction plates 9a and 9b are retracted to pull the front film 1 and the back film 3 outward and the storage part 8b on the back film 3 side is opened, both gripping tools 10 and 10 are elastically advanced in the opposite direction. Then, excessive tension is prevented from acting on the multi-chamber packaging bag 4. As described above, when the storage portion 8b on the back film 3 side is filled with an article to be packaged, when both suction disks 9a and 9b are advanced, both gripping tools 10 and 10 are elastically retracted. The opening 6b of the storage portion 8b returns to the closed state.

  Next, a method for selectively opening the storage portion 8a (see FIG. 2) on the surface film 1 side will be described.

  As shown in FIG. 6, the suction disks 9a and 9b are brought into contact with the central portion of the edge on the opening 6 side of the front film 1 and the suction hole 7 portion of the back film 3, respectively, and sucked, The surface film 1 is adsorbed by the suction disk 10 a and the divided film 2 is adsorbed by the suction disk 10 b through the suction hole 7. When the suction disks 9a and 9b are moved backward in this state, as shown in FIG. 6, the surface film 1 is pulled outward and the split film 2 is pulled outward together with the back film 3, so that the surface film The opening 6a of the storage portion 8a on the 1 side is widened. At this time, since the divided film 2 is adsorbed to the suction disk 9b through the suction hole 7, the divided film 2 and the back film 3 are in close contact with each other, and the storage portion 8b on the back film 3 side (see FIG. 2). The opening 6b is in a closed state. 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.

  When both the suction discs 9a and 9b are retracted and the front film 1, the divided film 2 and the rear film 3 are pulled outward to open the storage portion 8a on the front film 1 side, both gripping tools 10 and 10 are elastic. In the opposite direction, excessive tension is prevented from acting on the multi-chamber packaging bag 4. As described above, after the storage portion 8a on the surface film 1 side is filled with an object to be packaged, when both suction discs 9a and 9b are advanced, both gripping tools 10 and 10 are elastically retracted. The opening 6a of the storage portion 8a returns to the closed state.

  As described above, the corresponding packaged items are automatically filled into the storage portion 8a on the front film 1 side and the storage portion 8b on the back film 3 side, respectively, and then the edge on the opening 6 side is heat-sealed. As shown in FIG. 7, a heat-sealing part 5d that encloses the suction hole 7 is formed, the opening 6 is sealed, and the production of the package is completed. The heat sealing of the edge on the side of the opening 6 is performed by sandwiching the edge on the side of the opening 6 with a seal bar in a state where the multi-chamber packaging bag 4 containing the article to be packaged is suspended by the gripping tools 10 and 10. Can be done.

  Incidentally, in the package shown in FIG. 7, the trace of the suction hole 7 remains in the heat-sealed portion 5 d as a concave portion, although only on the back film 3 side. Therefore, as shown in FIG. 8, after the formation of the heat fusion part 5d, the suction hole 7 portion of the heat fusion part 5d is punched out, and a single through hole containing the suction hole 7 is suspended. It is preferable to form as. This hanging hole 11 is for hanging and displaying the manufactured package at a store. By removing the trace of the suction hole 7 with this hanging hole 11, it is possible to eliminate the uncomfortable feeling. The suspension hole 11 is formed as a through-hole that is the same as or larger than the suction hole 7, 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.

  In the above description, the packing material is filled into the storage portion 8b on the back film 3 side and the packing material is filled into the storage portion 8a on the surface film 1 side. It can also carry out in order of filling of the packaged object in the storage part 8a on the surface film 1 side and filling of the packaged object in the storage part 8b on the back film 3 side. 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 9a on the surface film 1 side is fixed at a fixed position, the edge on the opening 6 side of the surface film 1 is adsorbed to the suction disk 9a, and the multi-chamber packaging bag 4 is held upright, The storage unit 8a, 8b can be selected by moving the suction disk 9b on the back film 3 side forward and backward by changing the suction position and pulling only the back film 3 or both the back film 3 and the divided film 2 outward. Thus, the package can be manufactured by filling the article to be packaged while being opened.

  Next, the rigidity in the present invention will be described.

  As described above, the stiffness in the present invention is measured using the measuring device and method described in Japanese Utility Model Publication No. 3-25156. This is an explanatory diagram of the stiffness measuring device and measuring method in the present invention. This will be described with reference to FIG.

  First, as shown in FIG. 9A, both ends in the length direction of the test piece 12 cut out from the film to be used are sandwiched and fixed between a pair of left and right clamps 13 and 13, respectively. The test piece 12 has a width of 25 mm and a length of 200 mm.

  The left and right clamps 13 and 13 are provided with a lower receiving block 13a and an upper pressing block 13b, and both end portions in the length direction of the test piece 12 are sandwiched between the receiving block 13a and the pressing block 13b. . As shown in the figure, the clamp position is a position where the length of the test piece 12 exposed between the clamps 13 is 100 mm + 2h. h (mm) is the height of the holding block.

  The left and right clamps 13 and 13 are slidable horizontally in the opposing direction, and the clamps 13 and 13 are brought close to each other until the pressing blocks 13b and 13b sandwich the part of the test piece 12. FIG. ), A loop is formed at a length of 100 mm of the test piece 12. When the left and right clamps 13 and 13 are brought close to each other, air is blown from the lower side to the center portion of the test piece 12 so that a loop can be correctly formed on the holding block 13b side.

  Next, the test piece 12 forming the loop is rotated by 90 ° together with the clamp 13 so that the central axis of the loop faces the vertical direction, and a load is applied to the top of the loop as shown in FIG. In addition, it is crushed until the distance from the surface of the holding block 13b to the top of the loop reaches 20 mm, and the load at that time is measured with a load cell. The measured value (g) is stiffness.

  The rigidity 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 12 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, based on FIG.10 and FIG.11, the multi-chamber packaging bag based on the 2nd example of this invention is demonstrated.

  FIG. 10 is an explanatory view of a combined state of films constituting the multi-chamber packaging bag according to the second example of the present invention, and FIG. 11 is a perspective view of the multi-chamber packaging bag according to the second example of the present invention. 10 and 11, the same reference numerals as those in FIGS. 1 to 8 denote the same members or parts.

  As shown in FIGS. 10 and 11, the multi-chamber packaging bag 4 of this example is basically the same as the multi-chamber packaging bag 4 according to the first example described above, but the back film 3 is a surface film. 1 and shorter than the divided film 2. In addition, the heat-sealing part 5e is what heat-fused between the edge part of the bottom side of the back film 3, and the intermediate part of the division | segmentation film 2, and the multi-chamber packaging bag 4 of this example is the back film 3 and division | segmentation film. 2 can be obtained by superposing the surface film 1 to form the heat-sealed portions 5a to 5c.

  In the multi-chamber packaging bag 4 of this example, since the back film 3 is shorter than the front film 1 and the split film 2, the depth of the storage portion 8a on the front film 1 side is deep, and the storage portion 8b on the back film 3 side is deep. The depth is shallow. For this reason, it can respond to the case where the quantity of the package to be stored in the storage unit 8b is small or small compared to the package to be stored in the storage unit 8a.

  Furthermore, based on FIG.12 and FIG.13, the multi-chamber packaging bag which concerns on the 3rd example of this invention is demonstrated.

  FIG. 12 is an explanatory view of a combined state of films constituting the multi-compartment packaging bag according to the third example of the present invention, and FIG. 13 is a central longitudinal sectional view of the multi-compartment packaging bag according to the third example of the present invention. . 12 and 13, the same reference numerals as those in FIGS. 1 to 8 denote the same members or parts.

  As shown in FIGS. 12 and 13, the bottom film 14 folded in half is sandwiched between the surface film 1 and the split film 2 in the multi-chamber packaging bag 4 of this example with the folded portion facing inward. The storage portion 8 a on the surface film 1 side is a gusset type having a bottom surface portion formed of the bottom film 14. One piece of the bottom film 14 is joined to the surface film 1 via the heat fusion part 5b-1, and the other piece of the bottom film 14 together with the back film 3 to the divided film 2 via the heat fusion part 5b-2. It is joined. Although not shown, it is the same as the other examples that the heat fusion portions are provided on both sides.

  If it does as mentioned above, while the accommodation amount of the accommodating part 8a can be increased, the multi-chamber packaging bag 4 can be made into the bag which can be self-supporting. Further, in this example, the bottom film 14 is sandwiched between the front film 1 and the divided film 2, but both the storage portions 8 a and 8 b can also be of a gusset type by sandwiching the back film 3 and the divided film 2.

Examples 1-6, Comparative Examples 1 and 2
Table 1 shows the films used in Examples and Comparative Examples. In addition, the meaning of the code | symbol in the layer structure in Table 1 is as follows. Further, the stiffness is a value measured and calculated according to the description based on FIG. 9 using “Loop Stiffness Tester No. 581” manufactured by Toyo Seiki Seisakusho.

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 1 were cut into a size of 65 mm × 110 mm, and overlapped and heat-sealed only on the short side with a width of 10 mm, thereby producing a simulated 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 to be approximately 5 mm below 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 front film side was opened alone or together with the storage part on the back film side and the number of times only the storage part on the back film side was opened were counted.

  Table 2 shows the combination of the film of the simulated multi-chamber packaging bag in each Example and Comparative Example, the value of (stiffness of the front film) / (stiffness of the back film), and the count result. In Table 2, “first chamber” means the storage portion on the surface film side, “second chamber” means the storage portion on the back film side, and “front surface ÷ back surface” means (stiffness of the front film) ÷ (back surface) Means the stiffness of the film. “Film No.” in Table 2 corresponds to “Film No.” in Table 1.

It is explanatory drawing of the combined state of the film which comprises the multi-chamber packaging bag which concerns on the 1st example of this invention. It is a perspective view of the multi-chamber packaging bag which concerns on the 1st example of this invention. It is a perspective view of the state which set the multi-chamber packaging bag concerning the 1st example of the present invention to a grasping tool. It is explanatory drawing at the time of the to-be-packaged filling to the accommodating part by the side of the other film of the multi-chamber packaging bag which concerns on the 1st example of this invention. It is explanatory drawing of an effect | action when opening the accommodating part by the side of the other film side of the multi-chamber packaging bag which concerns on the 1st example of this invention. It is explanatory drawing at the time of the to-be-packaged filling to the accommodating part by the side of one film of the multi-chamber packaging bag which concerns on the 1st example of this invention. It is a top view which shows an example of the manufactured package. It is a top view which shows the other example of the manufactured package. It is explanatory drawing of the measuring apparatus and measuring method of rigidity in this invention. It is explanatory drawing of the combined state of the film which comprises the multi-chamber packaging bag which concerns on the 2nd example of this invention. It is a perspective view of the multi-chamber packaging bag which concerns on the 2nd example of this invention. It is explanatory drawing of the combined state of the film which comprises the multi-chamber packaging bag which concerns on the 3rd example of this invention. It is a center longitudinal cross-sectional view of the multi-chamber packaging bag which concerns on the 3rd example of this invention.

Explanation of symbols

1 Surface film (one film)
2 Split film 3 Back film (the other film)
4 Multi-chamber packaging bag 5a Thermal fusion part 5b Thermal fusion part 5b-1 Thermal fusion part 5b-2 Thermal fusion part 5c Thermal fusion part 5d Thermal fusion part 5e Thermal fusion part 6 Opening part 6a Opening part 6b Opening part 7 Suction hole 8a Storage part 8b Storage part 9a Suction board 9b Suction board 10 Holding tool 11 Hanging hole 12 Test piece 13 Clamp 13a Receiving block 13b Holding block 14 Bottom film

Claims (4)

  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. , In the form of a bag with a storage part formed on one film side and the other film side, the stiffness of one film is 2.5 times the stiffness of the other film, and it is divided from one film For automatic filling, characterized in that the rigidity of the film is substantially equal and suction holes for sucking the divided film from the other film side are formed at the edge of the opening side of the other film Multi-chamber packaging bag.   The multi-chamber packaging bag for automatic filling according to claim 1, wherein the rigidity of one film is three times or more of the rigidity of the other film. Using the multi-chamber packaging bag for automatic filling according to claim 1 or 2,
The one film and the edge of the other film on the opening side are respectively sucked with a suction disk facing the one film and a suction disk facing the other film and pulled outwardly, Each of the other film is curved outwardly, the divided film is curved in the same direction following the one film, and only the other film side storage portion is opened to fill the package;
While sucking the edge on the opening side of one film with the suction disk facing the one film, the suction disk facing the other film through the suction hole at the edge on the opening side of the divided film By suctioning and pulling outwards, one film, the split film and the other film are curved outward, respectively, and only the storage part on one film side is opened to fill the package. A process for producing a package comprising the steps of:   After filling the other film-side storage part and one film-side storage part with an object to be packaged, after heat-sealing the edge part on the opening side and forming a heat-sealing part containing the suction hole The method for manufacturing a package according to claim 3, wherein a single through hole including a suction hole is formed as a hanging hole in the heat-sealed portion.

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