JP2003011985A - Bag packaging item with easily opening structure and packaging machine for making the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag packaging item capable of being rapidly easily opened by peeling a seal surface of a packaging material sealed with a heat sealer and to provide a packaging machine for making the bag packaging item with an easily opening structure. SOLUTION: A gadget bag packaging item 1 housing a packaged product 3 in a bag 2 has a lateral sealed portion 5 formed by a concave seal outline 8 becoming hollow toward the inner side and a no-sealed portion 10 for an opening knob in the outside of the seal outline 8 left without being melt-bonded. When the non-sealed portion 10 for the opening knob as a knob piece is opened toward both sides, the opening force of the knob piece works via the seal outline 8 as a peeling force to peel the sealed surface of the packaging material forming the lateral seal portion 5, the peeling of the lateral sealed portion 5 progresses and then the opening edge portion of the gadget bag packaging item 1 is easily opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel easy-opening structure for a bag package in which an opening end is closed by a seal part,
And a packaging machine for producing a bag package having the easy-open structure.

[0002]

2. Description of the Related Art Conventionally, in a bag package, after a package is housed inside a bag formed of a heat-welding plastic packaging material, a heat sealer forms a heat-sealed seal portion at the open end of the bag. It is manufactured by closing the bag. Since it is difficult to form an initial cut in a bag package having a seal portion, it is difficult to open the bag package with bare hands without using tools such as scissors.

Therefore, conventionally, in order to make it easier to open the bag, a V-notch, I-notch, corrugation or the like as shown in FIG. 6 is cut in the heat-sealed seal portion to form an easy-open structure. It is being appreciated. That is, in FIG.
As one of the easy-open structures, a V notch 54 formed by cutting the outer peripheral edge into a V shape in the seal portion 53 of the bag package 50a in which the package 52 is housed in the bag 51 is shown.
Further, FIG. 6B shows an I notch 55 formed as a cutout from the edge of the seal portion 53 of the bag package 50b as another easy-opening structure. Figure 6
(C) shows a bag package 50 as another easy-opening structure.
A structure is shown in which a corrugation 56 is formed on the edge of the seal portion 53 of c, and the corrugation 56 is cut at any of the valleys of the corrugation 56 to facilitate opening. Further, when the bag package 50 is manufactured by a bag-making filling and packaging machine or the like, the easy-open structure such as the V notch 54, the I notch 55, and the corrugated 56 is usually the bag package 50.
It is often formed in the seal part 53 formed on the upper part of a to 50c, and in that case, the tearing direction is the bag package 5
It becomes 0 up and down direction.

[0004]

However, the above-mentioned V-notch, I-notch, corrugated, etc. opening structure is an easy-opening structure for tearing a bag, and any bag packaging body is similarly opened uniformly. It is generally difficult to do. That is,
Even if the V-notch, I-notch, or corrugated tip is cut into the packaging material of the bag, it does not necessarily open straight on the extension line thereof, and the tearing progresses obliquely, and as a result, the package is wrapped. In some cases, it may not be possible to obtain an opening wide enough to take out an object. Also,
Regarding the V notch and the I notch, usually only one place is provided on the bag package, so if the opening fails,
Again, the V notch and I notch cannot be opened. In the case of a corrugated easy-opening structure, it is possible to try opening from another location, but the opening is not always successful. In this way, if the opening is unsuccessful, tools such as scissors have to be used, and it may take time to open the bag package. Furthermore, since the tearing direction is usually the vertical direction of the bag package, it is often difficult to open it in the lateral direction. The packaging material may be opened by pinching the packaging material on both sides and peeling off the sealing surface of the sealing portion from the inside, but there are also problems such as a large amount of force being required for opening and rapid opening.

As described above, the above V notch, I notch,
The reason why the corrugated opening structure cannot always open enough to take out the package inside is that the opening of the bag package depends on the tearing of the packaging material, which makes it difficult to determine the opening direction. Due to. Therefore, the present invention devises the easy-open structure itself so that the opening of the bag package does not depend on the tearing of the packaging material, but the sealing surface of the heat-sealed packaging material can be easily peeled off. Then, it is an object to obtain a packaging machine for producing a bag package having such an easy-open structure.

An object of the present invention is to provide a V notch, an I notch,
Scissors by adopting an easy-opening structure that makes it easy to peel off the sealing surface of the packaging material sealed with a heat sealer, instead of the easy-opening structure by tearing the packaging material where it is difficult to determine the opening direction such as corrugations It is possible to open the bag package quickly and easily without using any tools such as the above, and to easily open the bag package in the lateral direction. (EN) An unsealing structure and a packaging machine for producing the bag package.

[0007]

According to the present invention, there is provided a bag package having an easy-opening structure, wherein a bag containing a package is opened at the open end of the bag and is opened on the outside of a concave seal contour which is recessed inward. It has a configuration in which the sealing portion for blocking is formed in a state where the non-sealing portion for knob is left.

According to the bag package having the easy-open structure, the outer packaging material having the concave seal contour recessed inward is not welded to the opening end of the bag containing the package. Since it remains as a non-sealing part for opening and picking, the opening force is opened by opening the packaging material of the non-sealing part for unsealing and picking that has already been recessed into the sealing part on both sides as a knob. However, it acts on the seal contour in a concentrated manner and is transmitted as a force to peel off the sealing surface of the packaging material welded at the seal portion from the seal contour, and the peeling of the seal portion easily progresses, resulting in the opening of the bag package. The end is opened.

In the bag package having the easy-open structure, it is preferable that the non-seal portion for gripping is continuously formed with a tab protruding outward. By continuously forming the tab in a state of protruding outward, when the non-sealing portion for gripping is opened to both sides, the non-sealing portion for gripping which is widened by connecting the tabs can be easily grasped, and It becomes easy to open and open the bag on both sides.

Further, in the bag package having the easy-open structure, the bag package is formed by cutting between the end portions of the continuous bag package in which the lateral seal portions are adjacent to each other. The easy-open structure having the tab-formed non-sealing portion for gripping is applied to the horizontal seal portion, and the other horizontal seal portion has a notch portion corresponding to the tab. It can be configured to be.
The bag package can be efficiently manufactured as a continuous bag package, and in this case, one of the adjacent horizontal seal parts of the continuous bag package has a non-plucking seal. The seal portion is the seal portion to which the easy-open structure is applied. When the tab is continuously formed on the non-holding knob portion in one of the horizontal seal portions, the notch portion corresponding to the tab is formed in the other horizontal seal portion of the adjacent horizontal seal portions. .

Further, in the bag package having the easy-open structure, the bag package is a gusset bag package in which a gusset is folded from the side, and the one side seal to which the easy-open structure is applied. The part is located on the upper side of the gusset bag package, the other lateral seal part is located on the lower side of the gusset bag package, and is bent along the bottom of the gusset bag package. You can By locating the one lateral seal portion to which the easy-opening structure is applied on the upper side of the gusset bag package, the open end of the gusset bag package having a good sitting position is located on the upper side and is suitable for opening.
Also, since the other side seal part, which is slightly unsightly due to the formation of the cutout part, is folded along the bottom part of the gusset bag package, it is usually hidden in the part of the bottom part which is not visible. It becomes possible.

Further, the present invention is a packaging machine equipped with a heat sealer for forming a seal portion at an open end of a bag in a state where a package is housed inside, wherein the heat sealer is a concave seal recessed inward. An easy-open structure having a groove portion that does not press a part of the opening end portion corresponding to the unsealing portion for opening and picking that is formed to be left at the opening end portion outside the contour is provided. It is a packaging machine for manufacturing the provided bag package.

According to the packaging machine for manufacturing a bag package having the easy-open structure, the heat sealer forming the seal portion at the opening end portion has the groove portion which does not press a part of the opening end portion. At the opening end of the bag that is not pressed by, the unsealed portion for opening and picking is left. That is, by devising the structure of the heat sealer, the non-sealing portion located outside the concave seal contour that is recessed inward is formed as the easy-open structure.

Further, according to the present invention, the first heat sealer portion which forms the first seal portion at the opening end portion of the bag which is manufactured in advance in the state where the package is housed inside the tubular packaging material. A heat sealer having a second heat sealer portion that is disposed adjacent to the first heat sealer portion and that forms a second seal portion at an end portion of the bag that follows the bag. In a packaging machine for continuously producing the bag package by repeating the production of the bag package by sealing the open end and the subsequent formation of the bag by sealing the end, The first heat sealer part corresponds to a non-sealing part for opening and pinching that is formed by being left at the opening end outside the concave seal contour that is recessed inward, and a part of the opening end is formed. Has a groove that does not press It is a bag packaging material for the production of packaging machine equipped with the opening structure.

According to the packaging machine for producing a bag package having the easy-open structure, the bag package is produced by closing the opening end of the preceding bag and the subsequent bag is produced by closing the end. In the packaging machine that continuously manufactures the bag package by repeating the formation, by devising the structure of the heat sealer, at the opening end of the bag package, a concave shape that is recessed inward as an easy-open structure is formed. An unsealed portion is formed that lies outside the sealing contour. That is, the first heat sealer portion forming the first seal portion at the opening end portion of the bag that is manufactured in advance, and the end portion of the bag that is arranged adjacent to the first heat sealer portion and that follows the bag. A heat sealer having a second heat sealer portion forming a second seal portion,
Since the first heat sealer portion has the groove portion that does not press a part of the opening end portion of the bag that is manufactured in advance, the first heat sealer portion is unsealed outside the concave seal contour of the first seal portion of the bag that is not pressed by the groove portion. An unsealed portion for the knob is formed.

In the packaging machine for manufacturing a bag package having the easy-open structure, the second heat sealer section has the first
Corresponding to the groove portion of the heat sealer portion, a tab forming groove portion for forming a tab continuous with the non-sealing portion can be formed. By forming the tab forming groove portion in the second heat sealer portion, the non-sealing portion of the bag package formed earlier extends outward in a shape that bites into the end portion of the bag formed subsequently. Tabs that are continuous in a state are formed.

Further, in the packaging machine for producing a bag package having this easy-opening structure, the heat sealer cuts the bag package produced in advance and the bag formed subsequently. A cutting tool having a shape along the tab forming groove can be incorporated. When a tab that extends outward is formed in the non-sealing portion of the bag package that is formed in advance and that has a shape that bites into the end portion of the bag that is formed subsequently, for forming tabs on the heat sealer. By incorporating a cutting tool having a shape along the groove, it becomes possible to separate the bag package having the tabbed non-sealed portion from the subsequent bag.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a bag wrapping body having an easy-opening structure and a packaging machine for manufacturing a bag wrapping body having the easy-opening structure according to the present invention will be described below with reference to the drawings. FIG. 1 (a) is a perspective view illustrating an embodiment of a bag package having an easy-open structure according to the present invention, and FIG. 1 (b) is (a).
FIG. 2 is a top view of the bag package shown in FIG. 1, FIG. 7C is a bottom view of the bag package shown in FIG. 2A, and FIG. 2 is another embodiment of the bag package adopting the easy-open structure according to the present invention. It is a front view.

The bag package having the easy-open structure shown in FIG. 1 is an example of a gusset package having a good sitting property in which the gussets 13 and 13 are folded from the side. The gusset package 1 is configured by accommodating a package 3 in a gusset bag 2 formed of a heat-welding plastic packaging material. The interior of the gusset bag 2 is closed by a vertical seal portion 4 and horizontal seal portions 5 and 6 formed at upper and lower ends. The easy-open structure 7 is applied to the lateral seal portion 5 closing the upper open end. That is, the lateral seal portion 5 is formed at the opening end of the gusset bag 2 so that a concave seal contour 8 which is recessed inward from the outer edges 9 on both sides is formed at the center thereof. There is. Therefore, the inside of the seal outline 8 is sealed by the lateral seal portion 5 to close the inside of the gusset package 1, but the outside of the seal outline 8 is not sealed with the packaging materials 10a and 10b. The unsealed portion 10 for opening and picking is formed so as to be left.

Gazette bag package 1 having the easy-opening structure 7
According to the above, by opening the packaging materials 10a and 10b, which are left without being welded to the lateral seal portion 5 as the opening non-sealing portion 10 in a shape that bites into the lateral seal portion 5 as a knob piece, , The opening force of the knob piece concentrates on a part of the seal contour 8 and becomes easy to act, and the packing materials 10a, 1
The force for peeling off the welded seal surface of the horizontal seal portion 5 continuous to 0b is transmitted. When the welded sealing surface of the horizontal seal portion 5 starts to be peeled off, the peeling of the horizontal seal portion 5 progresses due to the opening force of the knob piece that subsequently acts, and the open end of the gusset bag package 1 is opened. It The open state of the gusset bag package 1 is in the opened bag state before the horizontal seal is applied, and the package 3 can be taken out in a natural manner.

A tab 11 protruding outward is continuously formed on the non-seal portion 10 for pinching. That is, tab 1
One packaging material 11a, 11b (FIG. 1B) is formed continuously with the packaging material 10a, 10b, respectively. By forming the tab 11 continuously with the pinching non-sealing portion 10, it becomes easy to grasp the tabping non-sealing portion 10 that is widened in a row and is easy to grip when the opening operation is performed. The unsealing operation of opening the non-sealing portion 10 on both sides becomes easy.

The gusset bag package 1 can be manufactured at high speed and efficiently by cutting between the end portions of the continuous bag package in which the adjacent horizontal seal portions 5 and 6 are formed. In this case, among the adjacent horizontal seal parts 5 and 6 of the continuous gusset bag packages 1 and 1, the horizontal seal part 5 located above the gusset bag package 1 has the non-plucking seal as described above. The easy-open structure 7 including the portion 10 is applied. Since the horizontal seal portion 5 is located on the upper portion of the gusset bag package 1 that is comfortable to sit on, it is suitable for opening. In the case where the tab 11 is continuously formed on the knob non-sealing portion 10 in the horizontal seal portion 5, the bottom portion of the gusset bag package 1 is provided in the horizontal seal portion 6 located below the gusset bag package 1. As shown at 14, a notch 12 is formed by cutting out in a shape complementary to the tab 11. The lateral seal portion 6 whose appearance is slightly deteriorated due to the formation of the cutout portion 12 can be normally folded and overlapped along the non-visible bottom portion 14 of the gusset bag package 1.

Another embodiment of the bag wrapping body adopting the easy-opening structure according to the present invention shown in FIG. 2 is a bag wrapping body 20 by pillow wrapping. Regarding the bag package 20, the same elements and parts as those used in the gusset package 1 shown in FIG. 1 are designated by the same reference numerals as those of the gusset bag package 1 in FIG. There is. Bag package 20
Is a bag 22 containing a package 23, but the gusset is not folded in from the side. The horizontal seal portion 5 to which the easy-open structure 7 is applied and the horizontal seal portion 6 in which the notch 12 corresponding to the tab 11 is formed have the same structure as the gusset bag package 1.

Next, FIGS. 3 and 4 show an embodiment of a packaging machine for producing a bag package having an easy-open structure according to the present invention. FIG. 3 is a side sectional view of a heat sealer applied to a bag packaging body manufacturing packaging machine, and is a sectional view taken along the line AA of FIG. 4, and FIG. 4 is a front view of one heater block of the heat sealer shown in FIG. . As shown in FIGS. 3 and 4, in this embodiment, the heat sealer 30 forming the seal portions that become the horizontal seal portions 5 and 6 is formed in advance from the tubular packaging film Ft as the heat-welding packaging material. By filling the packed bag with the package 3 to form the lateral seal portion 5 to manufacture the bag package 1, at the same time, by sealing the tubular packaging film Ft to form a subsequent bag, It is applied to a bag-making filling and packaging machine that continuously forms the bag package 1 (gazette bag package). Heat sealer 30
Since the tubular packaging film Ft is sandwiched and welded from both sides, the two heater blocks 31, 3 facing each other are welded.
Equipped with 2. The heater blocks 31 and 32 synchronize with the filling of the package 3 and the feeding of the tubular packaging film Ft,
The tubular packaging film Ft is driven by an actuator (not shown) so as to approach or separate from each other, and when approaching each other.
Weld by sandwiching.

Each heater block 31 and 32 includes a heater 3
3, 33, heat pipes 34, 34, temperature measuring elements 35, 3
5 and a pair of first heat sealer portions 36, 36 as a heater surface for heating / pressurizing the tubular packaging film Ft and a pair of second heat sealer portions 37, 37. The first heat sealer portion 36 is formed in advance, and the package 3 is formed inside.
Is a heat sealer part for manufacturing the bag package 1 by sealing the open end of the bag 2 in the state of containing the bag and forming the first seal part (the horizontal seal part 5 in FIGS. 1 and 2). The heat sealer portion 37 is disposed adjacent to the first heat sealer portion 36, and has a second seal portion (see FIG.
It is a heat sealer part which forms a subsequent bag by forming the lateral seal part 6) of FIG. The internal structure of the actuator and each heater block 31, 32 may be a known one,
Detailed description will be omitted.

In each of the heater blocks 31 and 32, a non-sealing portion for opening and picking that is formed by being left outside the concave seal contour 8 (FIGS. 1 and 2) at the upper center portion of the first heat sealer portion 36. In order to form 10 (FIGS. 1 and 2), a groove 38 that does not press a part of the tubular packaging film Ft is formed corresponding to the unsealing part 10 for opening and picking.
According to the first heat sealer portion 36 configured as described above, the unsealing portion 10 for unsealing and picking which is made of the packaging material which is not heat-welded is left at the opening end portion of the bag 2 which is not pressed by the groove portion 38. Formed. That is, by devising the structure of the heat sealer 30, the non-sealing portion 10 located outside the concave seal contour 8 that is recessed inward is formed as the easy-open structure 7.

In the packaging machine for manufacturing the bag package 1 having the easy-opening structure 7, the first heat sealer section 37 has the first
Corresponding to the groove portion 38 of the heat sealer portion 36, a tab forming groove portion 39 for forming the tab 11 connected to the non-sealing portion 10 can be formed. Second heat sealer part 37
By forming the tab-forming groove portion 39 in the non-seal portion 10 of the bag package 1 formed in advance, the non-seal portion 10 of the bag package body 1 extended outward in a shape that bites into the end portion of the bag 2 formed subsequently. A tab 11 is formed which is continuous in a state.

The heat sealer 30 may incorporate a cutting tool having a shape along the tab-forming groove 39 for cutting the bag package 1 produced in advance and the bag 2 formed subsequently. it can. The cutting tool may be a cutter 40 that completely separates the bag package 1 and the subsequent bag 2 or a saw blade that allows a perforation that can be easily separated by tearing. The cutter 40 can be moved back and forth with respect to the packaging material Ft by an appropriate operating means in accordance with the operation of the heat sealer 30. FIG. 5 shows a cutter 40 as a cutting tool incorporated in the heat sealer 30 of the packaging machine. FIG. 5A is a plan view of the cutter incorporated in the heat sealer, and FIG. 5B is a front view of the cutter. The cutter 40 includes linear blade portions 41, 41 on both sides and a double blade portion 4
1 and 41, and a curved blade portion 42 having a curved shape along the tab-forming groove portion 39. The bag package 1 formed in advance by incorporating the cutter 40 having a shape along the tab forming groove 39 into the heat sealer 30.
The non-seal portion 10 of the tab 11 is formed in a shape that bites into the end portion of the bag 2 to be formed subsequently, and is formed with a tab 11 extending continuously to the outside.
The bag package 1 in which the non-sealing portion 10 with the tab 11 is formed can be separated from the subsequent bag 2.

The packaging machine for producing a bag package having the easy-opening structure according to the present invention is applied to a bag-making filling and packaging machine, but the bag-making filling and packaging machine is a vertical bag-making filling and packaging machine. Not only can it be applied to horizontal pillow packaging machines. Furthermore,
Not limited to the bag-making filling and packaging machine, it can be applied to a packaging machine that individually fills the individually manufactured bags with the package 3 and then seals the open end to individually produce the bag package. Of course. Further, it is apparent that various modifications such as the shape of the seal contour 8 and the shape of the tab 11 can be made without changing the gist of the present invention.

[0030]

As described above, the bag package provided with the easy-opening structure according to the present invention has the opening end portion of the bag accommodating the package, which is opened on the outside of the concave seal contour which is recessed toward the inside. Since the sealing part for blocking is formed with the non-sealing part for the knob remaining, the packaging material left unwelded as the non-sealing part for the opening knob can be opened on both sides as a knob piece. The opening force acts as a force that peels off the sealing surface of the packaging material of the seal portion that is continuous to the knob piece through the seal contour, and acts in a concentrated manner to facilitate the peeling of the seal portion, and tools such as scissors. The open end portion of the bag package can be quickly and easily opened without using. Furthermore, the sealing surface at the open end of the bag package is directly peeled off, which makes it easy to laterally open the upper part of the bag package and take out the package. Further, the packaging machine for producing a bag package having the easy-opening structure according to the present invention has, as described above, a heat sealer for forming a seal portion at the opening end of the bag with the package housed inside, A groove portion that does not press a part of the opening end portion is provided corresponding to a non-sealing portion for opening and picking formed at the opening end portion outside the concave seal contour that is recessed toward the outside. Therefore, only by devising the structure of the heat sealer, and if the packaging machine is a bag-making packaging machine, simply devise the shape of the cutting tool.
A bag package provided with an easy-open structure can be manufactured.

[Brief description of drawings]

FIG. 1 (a) is a perspective view for explaining an embodiment of a bag package having an easy-open structure according to the present invention, and FIG. 1 (b) is (a).
FIG. 3A is a top view of the bag package shown in FIG. 4C, and FIG. 7C is a bottom view of the bag package shown in FIG.

FIG. 2 is a front view showing another embodiment of the bag package having the easy-open structure according to the present invention.

3 is a side cross-sectional view of a heat sealer applied to the packaging machine for producing a bag package according to the present invention, which is taken along the line AA of FIG.
FIG.

FIG. 4 is a front view of one heater block of the heat sealer shown in FIG.

5A and 5B are views showing a cutting tool incorporated in the heat sealer of the packaging machine according to the present invention, FIG. 5A is a plan view of the cutter, and FIG. 5B is a front view of the cutter.

FIG. 6 is a view showing a conventional easy-open structure formed by cutting a V notch, an I notch, a corrugation, or the like.

[Explanation of symbols]

1 Gazette package 2 bags 3 packages 5 Horizontal seal part (first seal part) 6 Horizontal seal part (second seal part) 7 Easy opening structure 8 seal outline 10 Non-sealing part for opening and pinching 11 tabs 12 Notch 13 Gazette 20 Pillow bag package 30 heat sealer 36 1st heat sealer part 37 Second heat sealer part 38 Groove 39 Tab forming groove 40 cutting tools Ft tubular packaging

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E050 AA02 BA09 CB01 DC01 DC08                       DE05 DF01 EA02 GA01 GA08                       GB06 GB09                 3E064 AA13 BA22 EA12 HM01 HN06                       HP04                 3E094 AA12 CA02 DA01 EA01 FA13                       GA03 HA13

Claims (8)

[Claims] 1. A sealing seal portion is formed at the opening end of a bag containing a package, with a non-sealing portion for opening and closing being left on the outside of a concave seal contour recessed inward. A bag wrapping body having an easy-open structure consisting of the above. 2. The bag package provided with the easy-opening structure according to claim 1, wherein the tabs protruding outward are continuously formed on the non-seal portion for gripping. 3. The bag package is formed by cutting between adjacent end portions of the continuous bag package where the horizontal seal portions are formed, and the tab is formed on one of the horizontal seal portions. The said easy opening structure provided with the said non-seal part for knobs is applied, and the notch part corresponding to the said tab is formed in the said other horizontal seal part, It consists of the 2nd thing. A bag package with an easy-open structure. 4. The bag package is a gusset bag in which a gusset is folded from the side, and the one lateral seal portion to which the easy-open structure is applied is located above the gusset bag package. 3. The bag with the easy-opening structure according to claim 2, wherein the other lateral seal portion is located below the gusset bag package and is bent along the bottom of the gusset bag package. Packaging. 5. A packaging machine provided with a heat sealer for forming a seal portion at an open end of a bag with a package housed therein, wherein the heat sealer is provided on an outer side of a concave seal contour recessed inward. A bag package having an easy-open structure, which has a groove portion that does not press a part of the opening end portion, corresponding to the unsealing portion for opening and picking that is left behind at the opening end portion. Packing machine for body manufacturing. 6. A first heat sealer portion which forms a first seal portion at an open end of a bag which is manufactured in advance in a state where a package is housed inside a packaging material formed in a tubular shape, and the first heat sealer portion. 1
A heat sealer is provided that is disposed adjacent to the heat sealer portion and has a second heat sealer portion that forms a second seal portion at the end portion of the bag that follows the bag, and the open end portion of the preceding bag is provided. In a packaging machine for continuously producing the bag package by repeating production of the bag package by sealing and subsequent formation of the bag by sealing the end portion, the first heat sealer section is , A groove portion that does not press a part of the opening end portion is provided corresponding to a non-sealing portion for opening and closing knob which is formed at the opening end portion outside the concave seal contour which is recessed inward. A packaging machine for producing a bag package having an easy-opening structure consisting of: 7. The first heat sealer portion includes the first heat sealer portion.
7. The bag package having the easy-open structure according to claim 6, wherein a groove for tab formation for forming a tab connected to the non-sealing portion is formed corresponding to the groove of the heat sealer. Packaging machine. 8. The heat sealer incorporates a cutting tool having a shape along the tab forming groove for cutting the bag package manufactured in advance and the bag formed subsequently. A packaging machine for producing a bag package, comprising the easy-opening structure according to claim 7.