JP2021041970A - Packaging bag - Google Patents

Abstract

To provide a packaging bag that allows eating using the opened packaging bag as a dish and the like as it is without transferring food contents from the packaging bag to other dishes and the like, and has a sufficient depth and also has a content take-out port.SOLUTION: A packaging bag has a front surface 20 and a rear surface 30, and at least one side of the front surface 20 and at least one side of the rear surface 30 are joined via the gusset parts 40 and 50. Further, the bottom surface of the front surface 20 and the bottom surface of the rear surface 30 are joined via the bottom surface 10. The upper part thereof is a content take-out port. Then, the gusset parts 40 and 50 are provided with ridge lines e and h extending in a vertical direction and located on the outside of the packaging bag, and valley fold lines x1 and x2 extending in the vertical direction and located on the inside of the packaging bag, and the ridge lines e and h are positioned between the plurality of valley folding lines x1 and x2. Further, the valley folding lines x1 and x2 are positioned inside the side edge of the front surface 20.SELECTED DRAWING: Figure 6

Description

The present invention relates to a packaging bag in which an opened packaging bag can be used as it is as tableware and eaten without transferring the food contents from the packaging bag to another tableware.

Such a packaging bag is described in, for example, Patent Document 1.

The packaging bag described in Patent Document 1 has a tetrahedral shape, and by tearing along the opening guide using its two sides as an opening guide, it becomes a boat-shaped container having a bottom surface and a side surface surrounding the periphery. .. Therefore, this container can be used as it is as tableware for eating without transferring it from this boat-shaped container to another tableware.

However, this packaging bag has a drawback that the contents are liable to spill because the depth of the corners is impaired when the bag is torn and opened.

Japanese Patent No. 4388952

Therefore, the present invention is a package that can be eaten by using the opened packaging bag as it is as tableware without transferring the food contents from the packaging bag to another tableware, and has a sufficient depth. Moreover, it is an object of the present invention to provide a packaging bag having a wide opening for taking out contents.

That is, the invention according to claim 1 has a front surface and a rear surface, and at least one side side of the front surface and at least one side side of the rear surface are joined via a gusset portion, and the bottom surface of the front surface is formed. And the bottom of the rear surface are joined via the bottom surface, and in a packaging bag whose upper part is the content extraction port.
The gusset portion has a ridge line extending in the vertical direction and located on the outside of the packaging bag and a valley fold line extending in the vertical direction and located on the inside of the packaging bag, and the ridge line is a plurality of the valley fold lines. Located in between
The packaging bag is characterized in that the valley fold line is located inside the side of the front surface.

Next, the invention according to claim 2 has a front surface and a rear surface, and both side surfaces of the front surface and both side surfaces of the rear surface are joined via a right gusset portion and a left gusset portion, respectively. In a packaging bag in which the bottom edge of the rear surface and the bottom edge of the rear surface are joined via the bottom surface and the upper side thereof is the content outlet
Both the left and right gussets have a ridge line extending in the vertical direction and located on the outside of the packaging bag and a valley fold line extending in the vertical direction and located on the inside of the packaging bag, and the ridge lines are plurality. It is located between the valley fold lines
The packaging bag is characterized in that the valley fold lines on both side surfaces are located inside the side sides of the front surface.

Next, in the invention according to claim 3, the gusset portion includes a picking piece protruding to the outside of the packaging bag.
The packaging bag according to claim 1 or 2, wherein the picked pieces are arranged in the vicinity of the content extraction port.

Next, the invention according to claim 4 is the packaging bag according to claim 3, wherein the picked piece is provided on the ridgeline.

In the present invention, the upper part of the packaging bag is used as the content outlet.

Then, in this packaging bag, at least one side side of the front surface and at least one side side of the rear surface are joined via a gusset portion, and this gusset portion extends in the vertical direction and is located on the outside of the packaging bag. Since it has a ridge line and a valley fold line extending in the vertical direction and located inside the packaging bag, and the ridge line is located between the plurality of valley fold lines, the content take-out port is provided. Later, by pulling the gusset portion toward the outside of the packaging bag, the ridge line and the valley fold line are opened, and the content take-out port can be widened. Since the content take-out port can be opened wide in this way, it is easy to take out the contents.

Moreover, since this packaging bag has a bottom surface, it can stand on its own with the contents outlet wide open, and its depth is sufficient.

Therefore, the opened packaging bag can be used as it is as tableware without transferring the food contents from the packaging bag to another tableware.

FIG. 1 is a development view showing a blank of the packaging bag with respect to the first embodiment of the packaging bag of the present invention. FIG. 2 is an explanatory diagram showing a manufacturing process of the packaging bag according to the first embodiment of the packaging bag of the present invention. FIG. 3 is an explanatory diagram showing a manufacturing process of the packaging bag according to the first embodiment of the packaging bag of the present invention. FIG. 4 is an explanatory diagram showing a manufacturing process of the packaging bag according to the first embodiment of the packaging bag of the present invention. FIG. 5 is a perspective view of the packaging bag according to the first embodiment of the packaging bag of the present invention. FIG. 6 is a perspective view of a packaging bag in an opened state with respect to the first embodiment of the packaging bag of the present invention. FIG. 7 is a development view showing a blank of the packaging bag with respect to the second embodiment of the packaging bag of the present invention. FIG. 8 is a development view showing a blank of the packaging bag with respect to the third embodiment of the packaging bag of the present invention. FIG. 9 is a development view showing a blank of the packaging bag with respect to the fourth embodiment of the packaging bag of the present invention. FIG. 10 is a development view showing a blank of the packaging bag with respect to the fourth embodiment of the packaging bag of the present invention.

The packaging bag of the present invention is manufactured by bending a blank made of a packaging film and appropriately adhering it. It can be manufactured using one blank, or it can be manufactured by adhering a plurality of blanks.

Any film can be used as the packaging film used for this packaging bag. A typical example thereof is a film in which a sealant layer is laminated on the inner surface side of the base film.

As the base film, a film having mechanical strength and dimensional stability can be preferably used. For example, various biaxially stretched films. Examples of the material include polyester, polypropylene, polystyrene, nylon, polycarbonate, polyacrylic nitrile, and polyimide. Further, a film having a multilayer structure in which films of these various materials are laminated and other films are laminated may be used, and a film provided with a thin-film deposition layer or a printing layer may be used as a base film.

Examples of other films include metal foils such as aluminum foil. The base film containing a metal foil in its layer structure has excellent barrier properties against water vapor, oxygen gas, and the like.

Next, as the thin-film deposition layer, in addition to the metal-deposited layer formed by depositing a metal such as aluminum, an inorganic thin-film deposition layer made of an inorganic substance can be used. As the inorganic substance, metal oxides such as silicon oxide, aluminum oxide, magnesium oxide, calcium oxide, potassium oxide, tin oxide, sodium oxide, boron oxide, titanium oxide, lead oxide, zirconium oxide, and yttrium oxide can be used. Among them, silicon oxide, aluminum oxide, magnesium oxide and the like are preferable from the viewpoint of productivity and price. The base film containing these metal vapor deposition layers or inorganic vapor deposition layers in its layer structure also has excellent barrier properties against water vapor, oxygen gas, and the like.

A polyolefin resin can be used as the sealant layer. For example, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-vinyl acetate copolymer (EVA), ethylene-methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate copolymer. It is a polyolefin resin such as coalescence (EAA), ionomer, and polypropylene. These resins may be formed into a film by an extruder and used as a film. It is also possible to use an easy peel film having a function of peeling off the heat-sealed portion with a constant force.

The base film and the sealant layer can be laminated using an adhesive. As the adhesive, a dry laminating adhesive can be used. For example, a two-component curable urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, and the like. As a laminating method, a dry laminating method can be used. In addition, it is also possible to melt-extrude an adhesive resin to form a film, and press and laminate the base film and the sealant layer while maintaining the adhesive force.

Further, as the contents to be stored in this packaging bag, for example, food contents such as confectionery are suitable.

(First Embodiment)
Next, the packaging bag according to the first embodiment of the present invention will be described with reference to the drawings.

The first embodiment is an example of a packaging bag A in which both sides of the front surface and both sides of the rear surface are joined via a gusset portion. That is, this packaging bag A has left and right gusset portions. Further, both the left and right gusset portions have a ridge line extending in the vertical direction and located on the outside of the packaging bag and a valley fold line extending in the vertical direction and located on the inside of the packaging bag, and the ridge line extends. It is located between the plurality of valley fold lines. In addition, both the left and right gussets are provided with picking pieces that project to the outside of the packaging bag.

For convenience of explanation, first, a blank of the packaging bag will be described, a process of manufacturing the packaging bag from the blank will be described, and finally, the packaging bag will be described.

Therefore, first, FIG. 1 is a developed view showing a blank A1 of the packaging bag A.

As can be seen from this figure, the blank A1 has a bottom surface 10 in the center thereof. The front surface 20 is connected to the upper side of the bottom surface 10 via a bending line b, and the rear surface 30 is connected to the upper surface of the bottom surface 10 via a bending line c.

At the center of the bottom surface 10, a bending line b and a bending line a extending in parallel with the bending line c are provided. Therefore, the bottom surface 10 can be folded in half along the bending line a. Then, when the fold line a is folded in half, the fold line b and the fold line c overlap each other. That is, at this time, the lower end of the front surface 20 and the lower end of the rear surface 30 overlap each other.

Heat seal areas b1 and b2 are provided above and below the bending line b. In FIG. 1, the halftone dots indicate the heat-sealed region. By bending along the bending line b, the heat seal area b1 on the bottom surface 10 side and the heat seal area b2 on the front surface 20 side overlap each other.

Further, heat seal regions c1 and c3 are also provided above and below the bending line c. By bending along the bending line c, the heat seal region c1 on the bottom surface 10 side and the heat seal region c3 on the rear surface 30 side overlap each other.

The upper end of the front surface 20 is a heat seal region 101. Then, a scheduled opening line y1 is provided slightly below the heat seal region 101. This scheduled opening line can be configured by, for example, a perforation or the like.

Similarly, the lower end of the rear surface 3 is the heat seal region 102. A scheduled opening line y2 is provided slightly above the heat seal region 102. When the blank A1 is folded in half along the bending line a at the center of the bottom surface 10, the heat-sealing area 101 on the front surface 20 and the heat-sealing area 102 on the rear surface 3 overlap each other and can be heat-sealed with each other. Further, it is desirable that the scheduled opening line y1 on the front surface 20 and the scheduled opening line y2 on the rear surface 3 overlap each other when the blank A1 is folded in half along the bending line a, but it does not necessarily have to overlap.

A right gusset portion 40 is connected to the right side of the bottom surface 10, the front surface 20, and the rear surface 3 via a ridge line d. Of the right gusset portion 40, the region connected to the front surface 20 is the region 40F that constitutes the front half of the right gusset portion 40 (hereinafter referred to as “front right gusset portion”). The region connected to the rear surface 30 is a region (hereinafter referred to as "rear right gusset portion") 40B constituting the rear half of the right gusset portion 40. Further, in the right gusset portion 40, the region connected to the bottom surface 10 is bent at the ridge line d and overlapped with the bottom surface 10.

The right gusset portion 40 is provided with a bending line x1 extending in the vertical direction. The bending line x1 is provided so as to penetrate the right side surface 40 in the vertical direction, and for convenience of explanation, a portion of the bending line x1 belonging to the front right gusset portion 40F is indicated by a reference numeral of "x1F". Further, the portion to which the rear right gusset portion 40B belongs is designated by "x1B". Both the folding lines x1F and x1B form the valley fold line of the packaging bag A, which will be described later.

A heat seal region (hereinafter referred to as "vertical seal region") 60 is provided on the right side of the right gusset portion 40 via the ridge line e. In FIG. 1, the vertical seal region 60 is also divided into two regions, one of which is designated by “60F” and the other of which is designated by “60B”. The boundary line e between the right gusset portion 40 and the vertical seal region 60 constitutes the ridge line of the packaging bag A, which will be described later.

Further, a bending line f is provided in an oblique direction from the bending line x1F to the ridge line e. This bending line f is bent when the folding line a at the center of the bottom surface 10 folded in half is opened to widen the bottom surface 10, and the bending line f starts from the intersection of the edge of the heat seal region b2 and the bending line x1F. It extends in a direction of about 45 degrees with respect to x1F.

Similarly, a bending line j is provided in an oblique direction from the bending line x1B to the ridge line e. This bending line j is also bent when the bottom surface 10 is expanded, and extends in a direction of about 45 degrees with respect to the bending line x1B, starting from the intersection of the edge portion of the heat seal region c3 and the bending line x1b.

The front side vertical seal area 60F is provided with a front side picking piece 70F at the upper end portion thereof, and the front side picking piece 70F projects to the right side of the vertical direction sealing area 60F. Further, a rear picking piece 70B is provided at the lower end of the vertical sealing area 60B on the rear side, and the rear picking piece 70B projects to the right side of the vertical sealing area 60B. When the blank A1 is folded in half along the bending line a at the center of the bottom surface 10, the front picking piece 70F and the rear picking piece 70B overlap each other. Then, as will be described later, the stacked picking pieces 70F and 70B can be heat-sealed with each other to form a picking piece 70 protruding to the outside of the packaging bag A.

Next, the left side of the bottom surface 10, the front surface 20, and the rear surface 3 has a structure symmetrical to the right side.

That is, first, the left gusset portion 50 is connected to the left side of the bottom surface 10, the front surface 20, and the rear surface 3 via a mountain fold line g. In FIG. 1, the front left gusset portion 50F and the rear left gusset portion 50B are shown separately.

The left gusset portion 50 is provided with a bending line x2 extending in the vertical direction. Regarding the bending line x2, in FIG. 1, the portion belonging to the front left gusset portion 50F is designated by "x2F", and the portion belonging to the rear left left gusset portion 50B is designated by "x2B". The folding lines x2F and x2B also constitute the valley folding line of the packaging bag A, which will be described later.

A heat seal region (hereinafter referred to as “vertical seal region”) 80 is provided on the left side of the left gusset portion 50. In FIG. 1, the heat seal region 80 is also divided into two regions, one of which is designated by “80F” and the other of which is designated by “80B”. The boundary line h between the left gusset portion 50 and the vertical seal region 80 constitutes the ridge line of the packaging bag A, which will be described later.

Further, a bending line i is provided in an oblique direction from the bending line x2F to the bending line h, and a bending line k is provided in an oblique direction from the bending line x2B to the bending line h. Both the fold line i and the fold line k are bent when the bottom surface 10 is expanded, and the fold line i is relative to the fold line x2F starting from the intersection of the edge of the heat seal region b2 and the fold line x2F. It extends in a direction of about 45 degrees, and the bending line k extends in a direction of about 45 degrees with respect to the bending line x2B, starting from the intersection of the edge of the heat seal region c3 and the bending line x2B.

The front side picking piece 90F is provided at the upper end of the front side vertical seal area 80F, and the front side picking piece 90F projects to the left side of the vertical direction sealing area 80F. Further, a rear picking piece 90B is provided at the lower end of the vertical sealing area 80B on the rear side, and the rear picking piece 90B projects to the left side of the vertical sealing area 80B. When the blank A1 is folded in half along the bending line a at the center of the bottom surface 10, the front picking piece 90F and the rear picking piece 90B overlap each other. Then, as will be described later, the stacked picking pieces 90F and 90B can be heat-sealed with each other to form a picking piece 90 protruding to the outside of the packaging bag A.

Next, a process of manufacturing the packaging bag A from the blank A1 will be described with reference to FIGS. 2 to 4.

First, as shown in FIG. 2, the ridge line d is mountain-folded so that the front right gusset portion 40F is overlapped with the front surface 20, the rear right gusset portion 40B is overlapped with the rear surface 30, and the bending lines x1F and x1B are folded in valleys. To do. The same applies to the left side. The mountain fold line g is mountain-folded so that the front left gusset portion 50F is overlapped with the front surface 20, the rear left gusset portion 50B is overlapped with the rear surface 30, and the bending lines x2F and x2B are valley-folded. ..

Next, as shown in FIG. 3, the folding lines b and c are mountain-folded, and the folding line a between the folding lines b and the folding line c is valley-folded. As a result, the heat-sealed regions b1 and the heat-sealed regions b2 on both sides of the bending line b overlap each other. Further, the heat seal regions c1 and the heat seal regions c3 on both sides of the bending line c also overlap each other.

Further, the front right gusset portion 40F and the rear right gusset portion 40B overlap each other, and the front vertical seal area 60F and the rear vertical seal area 60B also overlap each other. Of course, the front picking piece 70F and the rear picking piece 70B also overlap each other. The same applies to the left side, the front left gusset portion 50F and the rear left gusset portion 50B overlap each other, and the front vertical seal area 70F and the rear vertical seal area 70B also overlap each other. Of course, the front picking piece 90F and the rear picking piece 90B also overlap each other.

Further, the heat seal region 101 on the front surface 20 and the heat seal region 102 on the rear surface overlap each other.

Then, by heat-sealing the heat-sealed regions that are overlapped with each other in this way, it is possible to manufacture the packaging bag A in a state in which the contents are not contained (see FIG. 4).

That is, first, the heat-sealed regions b1 and the heat-sealed regions b2 on both sides of the bending line b are heat-sealed with each other. Further, the heat-sealed regions c1 and the heat-sealed regions c3 on both sides of the bending line c are heat-sealed with each other. At this time, in addition to this, the heat seal region b1 and the heat seal region c1 may be heat-sealed with each other at the corner of the intersection of the heat seal region b2 and the vertical seal region 60F. Further, the heat seal region b1 and the heat seal region c1 may be heat-sealed with each other at the corner of the intersection of the heat seal region b2 and the vertical seal region 80F.

Further, the front vertical seal region 60F and the rear vertical seal region 60B are heat-sealed with each other. At this time, the front picking piece 70F protruding from the front vertical sealing area 60F and the rear picking piece 70F protruding from the rear vertical sealing area 60B are heat-sealed with each other. By heat-sealing in this way, the right side of the packaging bag A is formed, and the picking piece 70 protruding from the right side to the right side of the packaging bag A can be formed.

Further, the front vertical seal region 80F and the rear vertical seal region 80B are heat-sealed with each other. At this time, the front picking piece 90F protruding from the front vertical sealing area 80F and the rear picking piece 90F protruding from the rear vertical sealing area 80B are heat-sealed with each other. By heat-sealing in this way, the right side of the packaging bag A is formed, and the picking piece 70 protruding from the right side to the right side of the packaging bag A can be formed.

It is desirable that the heat-sealed region 101 on the front surface 20 and the heat-sealed region 102 on the rear surface, which are overlapped with each other, remain unsealed. Then, after accommodating the contents from this unsealed portion, the heat-sealed region 101 and the heat-sealed region 102 can be sealed to seal the contents (see FIG. 5).

The packaging bag A manufactured in this way has the appearance as shown in FIG. 5, and the right gusset portion 40 is provided with two valley fold lines x1F and x1B extending in the vertical direction of the packaging bag A. , These two valley fold lines x1F and x1B are both located inside the packaging bag and inside the side d of the front surface 20, and therefore appear in the appearance shown in FIG. Absent. Further, a ridge line extending in the vertical direction is provided at the center of these valley fold lines x1F and x1B. This ridge line is composed of the boundary line e between the right gusset portion 40 and the vertical seal region 60, and is located on the outside of the packaging bag. Then, on the outside of the ridge line e, it is arranged in the vicinity of the content extraction port via the vertical seal region 60 (the region formed by heat-sealing the vertical seal region 60F and the vertical seal region 60B). A picked piece 70 (a picked piece formed by heat-sealing the picked piece 70F and the picked piece 70B) is provided toward the outside of the packaging bag A.

Further, the left gusset portion 50 is similarly provided with two valley fold lines x2F and x2B, but both of these two valley fold lines x2F and x2B are inside the side g of the front surface 20. Since it is located at, it does not appear in the appearance shown in FIG. Further, a ridge line extending in the vertical direction is provided at the center of these valley fold lines x1F and x1B. This ridge line is composed of a boundary line h between the left gusset portion 50 and the vertical seal region 80, and is located on the outside of the packaging bag. Then, outside the ridge line h, the vertical seal region 80 (a region formed by heat-sealing the vertical seal region 80F and the vertical seal region 80B) is arranged in the vicinity of the content take-out port. A picked piece 90 (a picked piece formed by heat-sealing the picked piece 90F and the picked piece 90B) is provided toward the outside of the packaging bag A.

Since the bottom of the packaging bag A is composed of a bottom surface 10 folded in half by the folding line a, a wide bottom surface can be formed by opening the bottom surface 10 at the folding line a.

Next, a method of using the packaging bag A will be described with reference to FIG.

First, the contents are opened by cutting along the scheduled opening lines y1 and y2.

Next, by pinching the picked pieces 70 and 90 on both the left and right sides with fingers and pulling them toward the outside of the packaging bag A, the contents take-out port can be opened wide. That is, first, in the right gusset portion 40, two valley fold lines x1F, x1B extending in the vertical direction and the ridge line e are lined up. Therefore, by pinching and pulling the picked pieces 70, 90, these valley fold lines x1F, x1B And the ridgeline e open. Further, since the two valley fold lines x2F, x2B and the ridge line h are also arranged in the left gusset portion 50, these valley fold lines x2F, x2B and the ridge line h can be obtained by pinching and pulling the picked pieces 70, 90. And open. In this way, since the left and right side surfaces 40 and 50 are opened, the content take-out port can be opened wide.

In addition to this, it is desirable to open the bending line a at the center of the bottom surface 10 to widen the bottom surface 10. By expanding the bottom surface 10, the packaging bag A can be made to stand on its own with the contents outlet facing upward.

In this way, the packaging bag A can stand on a table or the like while accommodating the contents, and the contents can be opened wide from the packaging bag A. The opened packaging bag A can be used as it is as tableware without transferring it to another tableware.

The example in which d in FIG. 1 is a ridge line and x1F is a valley fold line has been described above, but it is also possible to reverse this.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a developed view showing a blank B1 of the packaging bag B according to the fourth embodiment.

As can be seen from this figure, the packaging bag B has left and right gusset portions 40 and 50, and these left and right gusset portions 40 and 50 each extend in the vertical direction and have a ridge line located on the outside of the packaging bag and the vertical direction. It has a valley fold line located inside the packaging bag, and the ridge line is located between the plurality of valley fold lines. On the other hand, the picking piece 70 protruding to the outside of the packaging bag is provided only in the right gusset portion 40, and the left gusset portion 50 is not provided with the picking piece.

The method for producing the packaging bag B from the blank B1 is the same as that for the packaging bag A according to the first embodiment. Further, the method of using the packaging bag B is the same as that of the packaging bag A according to the first embodiment.

(Third Embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a developed view showing a blank C1 of the packaging bag C according to the third embodiment.

As can be seen from this figure, in the packaging bag C, the right side of the front surface 20 and the right side of the rear surface are joined via the right gusset portion 40, but the left gusset portion is not provided. The right gusset portion has a ridge line extending downward and located on the outside of the packaging bag and a valley fold line extending vertically and located on the inside of the packaging bag, and the ridge line is a plurality of the valley folds. It is located between the lines. On the other hand, such a valley fold line or a ridge line is not provided on the left side of the front surface 20.

A picking piece 70 is provided on the right gusset portion 40, and a picking piece 70 is provided on the left side of the front surface 20 via a heat seal region 80F.

The method for producing the packaging bag C from the blank C1 is also the same as the packaging bag A according to the first embodiment. Further, the method of using the packaging bag C is the same as that of the packaging bag A according to the first embodiment.

(Fourth Embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 9 is a developed view showing a blank D1 of the packaging bag D according to the fourth embodiment.

As can be seen from this figure, in the packaging bag D, similarly to the packaging bag C according to the third embodiment, the right side of the front surface 20 and the right side of the rear surface are joined via the right gusset portion 40. , The left gusset is not provided. The right gusset portion has a ridge line extending downward and located on the outside of the packaging bag and a valley fold line extending vertically and located on the inside of the packaging bag, and the ridge line is a plurality of the valley fold lines. It is located in between. On the other hand, such a valley fold line or a ridge line is not provided on the left side of the front surface 20. Further, although the right gusset portion 40 is provided with the picking piece 70, the picking piece 70 is not provided on the left side of the front surface 20.

The method for producing the packaging bag D from the blank D1 is also the same as the packaging bag A according to the first embodiment. Further, the method of using the packaging bag D is the same as that of the packaging bag A according to the first embodiment.

(Fifth Embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 10 is a development view showing a blank E1 of the packaging bag E according to the fifth embodiment.

As can be seen from this figure, in the packaging bag D, the right side of the front surface 20 and the right side of the rear surface are joined via the right gusset portion 40, similarly to the packaging bags C and D according to the third and fourth embodiments. However, the left gusset is not provided. The right gusset portion has a ridge line extending downward and located on the outside of the packaging bag and a valley fold line extending vertically and located on the inside of the packaging bag, and the ridge line is a plurality of the valley fold lines. It is located in between. On the other hand, such a valley fold line or a ridge line is not provided on the left side of the front surface 20.

The right gusset portion 40 is not provided with the picking piece 70, and the picking piece 70 is provided on the left side of the front surface 20 via the heat seal region 80F.

The method for producing the packaging bag D from the blank D1 is also the same as the packaging bag A according to the first embodiment. Further, the method of using the packaging bag D is the same as that of the packaging bag A according to the first embodiment.

A: Packaging bag A1: Packaging film blank 10: Bottom surface 20: Front surface 30: Rear surface 40: Right gusset part 40F: Front right gusset part 40B: Rear right gusset part 50: Left gusset part 50F: Front side left gusset part 50B: Rear left gusset 60: Vertical seal area 70: Picking piece 70F: Front picking piece 70B: Rear picking piece 80: Vertical sealing area 90: Picking piece 90F: Front picking piece 90B: Rear picking piece x1: Bending Line (valley fold line) x1F: Bending line x1 that belongs to the front right side surface 40F x1B: Folding line x1 that belongs to the rear right side surface 40B x2: Folding line (valley fold line) x2F: Folding line x2 Of which, the part belonging to the front left side surface 50F x2B: The part belonging to the rear side left side surface 40B of the bending line x2 e: The boundary line (ridge line) between the right gusset part and the vertical seal area.
h: Boundary line (ridge line) between the left gusset and the vertical seal area

Claims (4)

It has a front surface and a rear surface, and at least one side side of the front surface and at least one side side of the rear surface are joined via a gusset portion, and the bottom surface of the front surface and the bottom surface of the rear surface are joined via the bottom surface. In a packaging bag whose contents are taken out from above
The gusset portion has a ridge line extending in the vertical direction and located on the outside of the packaging bag and a valley fold line extending in the vertical direction and located on the inside of the packaging bag, and the ridge line is a plurality of the valley fold lines. Located in between
A packaging bag characterized in that the valley fold line is located inside the side of the front surface. It has a front surface and a rear surface, and both sides of the front surface and both sides of the rear surface are joined via a right gusset portion and a left gusset portion, respectively. In a packaging bag that is joined and has the contents outlet above it,
Both the left and right gussets have a ridge line extending in the vertical direction and located on the outside of the packaging bag and a valley fold line extending in the vertical direction and located on the inside of the packaging bag, and the ridge lines are plurality. It is located between the valley fold lines
A packaging bag characterized in that the valley fold lines on both side surfaces are located inside the side sides of the front surface. The gusset portion is provided with a picking piece that protrudes to the outside of the packaging bag.
The packaging bag according to claim 1 or 2, wherein the picked pieces are arranged in the vicinity of the content extraction port. The packaging bag according to claim 3, wherein the picked piece is provided on the ridgeline.

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