WO2024062697A1

WO2024062697A1 - Gusseted pouch

Info

Publication number: WO2024062697A1
Application number: PCT/JP2023/021478
Authority: WO
Inventors: 宏樹田中; 翔大郎勝田
Original assignee: 東洋製罐株式会社
Priority date: 2022-09-21
Filing date: 2023-06-09
Publication date: 2024-03-28
Also published as: JP2024044526A

Abstract

The present invention provides a gusseted pouch which maintains smooth pouring of a content.　Provided is a gusseted pouch (10) comprising a first gusset film (50) that is heat-welded to a front side film (30) and a back side film (40) by means of a first side seal (22). The first gusset film (50) has a first front side portion (56) located on a front side of a first non-sealed area (53) in the front/back direction and a first back side portion (57) located on a back side of the first non-sealed area (53) in the front/back direction, and grip parts (27) are provided to each of the first front side portion (56) and the first back side portion (57).

Description

Pouch with gusset

The present invention relates to a gusseted pouch that includes a first gusset film that is thermally welded to a front side film and a back side film by a first side seal.

Conventionally, the present applicant has proposed a gusset film provided with a first gusset film that is thermally welded to a front side film and a back side film by a first side seal in Patent Document 1 as a container for storing contents such as drinking water or liquid detergent. We are proposing a pouch with a pouch.

JP 2020-132177 A

However, with such gusseted pouches, external air may enter the pouch from the spout while the contents are being poured out through the spout, and this intrusion of external air may cause , so-called pulsation may occur, which may impede smooth dispensing.

Therefore, the present invention is intended to solve these problems, and aims to provide a gusseted pouch that has a simple structure and maintains smooth pouring of the contents.

The present invention includes a front side film, a back side film facing the front side film in the front and back directions with a content storage section in between, and a first gusset film that is thermally welded to the front side film and the back side film by a first side seal. , a gusseted pouch comprising a handle portion for a user to hold the pouch, the first gusset film having a first front side seal area heat welded to the front side film, and a first front side sealing area heat welded to the back side film. and a first non-seal area that is an area inside the first front side seal area and the first back side seal area, and the first gusset film has a a first front side portion located on the front side of the region in the front and back direction; and a first back side portion located on the back side of the first non-sealing region in the front and back direction, the first front side portion and the first back side. The above-mentioned problem is solved by providing the above-mentioned handle portions in each of the sections.

According to the invention of claim 1, a handle portion is provided on both the first front side portion and the first back side portion of the first gusset film. As a result, when pouring out the contents while holding the pouch up using the handle portions on both sides, the first front side portion and the first back side portion on both sides held by the user gradually come closer to each other as the contents are poured out, and it is possible to narrow the gap between the front film and the back film on the first gusset film side, so that the volume of the contents storage portion can be gradually reduced as the contents are poured out, preventing outside air from entering through the pouring outlet when the contents are poured out, and maintaining smooth pouring of the contents.

According to the invention according to claim 2, at least a portion of the handle portion provided on the first front side portion and the first back side portion is formed on a portion located on the side of the first base edge in the front and back direction. By doing so, it is possible to more reliably cause the first front side portion and the first back side portion held by the user to move toward each other as the contents are poured out.
According to the invention according to claim 3, the handle portion is formed as a through hole that is formed in the first front side portion and the first back side portion in the film thickness direction. The structure can be simplified and the pouch structure can be prevented from becoming complicated.
According to the invention according to claim 4, the first gusset film is formed with the first film folded portion in which the first gusset film is folded in a valley-fold shape toward the inside of the pouch, so that the contents can be As pouring progresses, the degree of bending of the first gusset film can be gradually increased so that the first front side portion and the first back side portion on both sides can smoothly approach each other. The volume of the accommodating portion can be smoothly reduced.
According to the invention according to claim 5, the inner film includes an inner film folded part in which the inner film is folded in a valley-fold shape toward the second storage area, and a film formed on the inner film folded part. It has a penetration part. As a result, as the contents are poured out, the degree of bending of the inner film is increased, and the side surface of the inner film on the first storage area side guides the contents from the first storage area side to the second storage area side. Since it can function as a guide, it is possible to suppress the contents from remaining in the first storage area.
According to the invention according to claim 6, since the spout is attached to the second non-sealing area of the second gusset film, when the contents are poured out, on the first gusset film side, the front side film and the back side While the gap between the films narrows, on the second gusset film side, the spout is installed to prevent the gap between the front side film and the back side film from narrowing. Since the weight of the contents is well balanced when the pouch is lifted using the handles on both sides, pouring operations can be performed stably.

FIG. 1 is a perspective view showing a gusseted pouch according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing each film that constitutes the pouch body. An explanatory diagram showing a first gusset film. An explanatory diagram showing a second gusset film. An explanatory diagram showing an example of how a gusseted pouch is used. Explanatory diagram showing a modification of the gusseted pouch.

Below, a gusseted pouch 10 that is an embodiment of the present invention will be described based on the drawings.

The gusseted pouch 10 accommodates various liquid contents such as herbicides, drinking water, liquid detergent, etc. As shown in FIGS. 1 and 2, the pouch 10 has

flexible films

30 and 40 , 50, and 60 are thermally welded to form a bag-making seal part to form a pouch body 20, and an inner film 70 disposed within the pouch body 20 (content storage part 21). It has a spout 80 attached to the pouch body 20.

The pouch main body 20 is configured as a so-called horizontal gusset type pouch with gussets formed on both sides, and as shown in FIGS. 1 and 2, the pouch body 20 is arranged facing each other in the front and back direction a first side film 30 and a back side film 40 that are disposed between the front side film 30 and the back side film 40 on one of the sides of the pouch and thermally welded to the front side film 30 and the back side film 40 by the first side seal 22; The gusset film 50 is arranged opposite to the first gusset film 50 in the front-rear direction Z with the content storage section 21 in between, and heat is applied to the front side film 30 and the back side film 40 by the second side seal 23 on the other side of the pouch. It has a second gusset film 60 to be welded.

Each of the

films

30, 40, 50, 60, and 70 is formed as a resin film having a heat-welding layer on at least one side thereof, and is arranged so that the heat-welding layers face each other at the locations where they are heat-welded to each other. .
In addition, in FIG. 2 etc., each heat welding area of each

film

30, 40, 50, 60, and 70 is represented by filling out.

As shown in FIGS. 1 and 2, the pouch main body 20 includes a first side seal 22 which is heat-welded to the

films

30 and 40 on both sides of a first gusset film 50 in the lateral direction, and a second gusset film 60 in the lateral direction. A second side seal 23 whose both sides are thermally welded to the

films

30 and 40, and a bottom seal 25 between the first side seal 22 and second side seal 23 in the front-rear direction Z, with the content storage section 21 in between. A top seal 24 to which

films

30, 40 are fixed at a position corresponding to the top of the opposing pouch main body 20, and a bottom seal 25 to which

films

30, 40 are fixed to a position corresponding to the pouch bottom 20a of the pouch main body 20, It has an intermediate seal 26 in which the

films

30, 40 and an inner film 70 are thermally welded. These seals 22 to 26 constitute a bag-making seal section.

When the inner film 70 is provided as in this embodiment, the top seal 24 and the bottom seal 25 can be directly heat-sealed between the

films

30 and 40 to form a portion where the

films

30 and 40 are fixed. , an inner film 70 is interposed between the

films

30, 40, and the

films

30, 40 are fixed by heat welding.
If the gusseted pouch 10 is formed without providing the inner film 70, the top seal 24 and the bottom seal 25 are only the portions where the

films

30 and 40 are fixed by direct heat welding between the

films

30 and 40. It consists of

As shown in FIG. 3, the first gusset film 50 has a first front side seal area 51 which is heat welded to the front film 30 at the first side seal 22 and a first front side seal area 51 which is heat welded to the back side film 40 at the first side seal 22. It has a first back side sealed area 52 and a first non-sealed area 53 which is an area inside the first front side sealed area 51 and first back side sealed area 52.

As shown in FIG. 3, the first non-seal area 53 has a first outer edge 54 on the front side which is the boundary with the first front side seal area 51 and a first outer edge 55 on the back side which is the boundary with the first back seal area 52. have.
The first gusset film 50 is formed to be line symmetrical (left-right symmetrical) with respect to an imaginary line extending from the center of the front-back direction X of the first gusset film 50 along the up-down direction Y; in other words, the first front-side outer edge 54 and The first back side outer edge 55 is formed to be line symmetrical (left-right symmetrical) with respect to the virtual line.

As shown in FIG. 3, the first front side outer edge 54 and the first back side outer edge 55 are composed of

first base edges

54a, 55a which are spaced apart from each other in the front and back direction X, and

first base edges

54a, 55a. First lower side

inclined edges

54b, 55b extending from the lower end to the first lower end connecting part 53a connecting the lower ends of the first front side outer edge 54 and the first back side outer edge 55, and the upper ends of the

first base edges

54a, 55a. It has first upper

inclined edges

54c and 55c extending to a first upper end connecting portion 53b connecting the upper ends of the first outer edge 54 and the outer edge 55 of the first front side and the first back side outer edge 55, respectively.

The

first base edges

54a, 55a are formed to extend linearly along the up-down direction Y, as shown in FIG.
As shown in FIG. 3, the first lower side

inclined edges

54b, 55b are inclined in the vertical direction Y so as to be closer to the inner side in the front and back direction X (in this embodiment, at an inclination angle of 45°) as they go downward. It extends in a straight line.
As shown in FIG. 3, the first upper side

inclined edges

54c, 55c are inclined in the vertical direction Y so as to become closer to the inside in the front and back direction X (in this embodiment, at an inclination angle of 45°). It extends in a straight line.

As shown in FIG. 3, the first gusset film 50 includes a first front side portion 56 located on the front side of the first non-sealing area 53 in the front and back direction , and a first back side side portion 57 located on the back side of the first non-sealing area in the front and back direction X (on the back side of the first back side outer edge 55 in the front and back direction X).

In this embodiment, the first front and

back side portions

56 and 57 have heat welded

parts

56a and 57a that are heat welded to the

films

30 and 40, and heat welded

parts

56a and 57a that are heat welded to the

films

30 and 40, as shown in FIG. This includes unheated welded portions 56b and 57b.
In this embodiment, as shown in FIG. 3, the unheated welded parts 56b and 57b are sandwiched between the heat welded

parts

56a and 57a in the front and back direction X.

A first front side portion 56 (specifically, a portion where the first front side portion 56 and the front film 30 are overlapped) and a first back side portion 57 (specifically, a first back side portion 57). As shown in FIG. 3, handle portions 27 (a first handle portion 27a, a second handle portion 27b), which will be described later, are respectively provided on the portion where the back side film 40 is overlapped.

As shown in FIGS. 2 and 5, the first gusset film 50 is arranged between the first front side portion 56 and the first back side portion 57 so that the center of the first gusset film 50 in the front and back direction X is aligned in the vertical direction Y. A first film folding portion in which the first gusset film 50 is folded in two in a valley fold shape toward the inside of the pouch along an imaginary line extending along the line (a folding process is performed to maintain the folded state). It has 58.

As shown in FIG. 4, the second gusset film 60 includes a second front seal area 61 that is heat welded to the front film 30 at the second side seal 23 and a second front seal area 61 that is heat welded to the back film 40 at the second side seal 23. It has a second back side sealed area 62 and a second non-sealed area 63 which is an area inside the second front side sealed area 61 and the second back side sealed area 62.

As shown in FIG. 4, the second non-sealed area 63 has a second front side outer edge 64 which is the boundary with the second front side sealed area 61 and a second back side outer edge 65 which is the boundary with the second back side sealed area 62. have.
The second gusset film 60 is formed line-symmetrically (left-right symmetrical) with respect to an imaginary line extending from the center of the front-back direction X of the second gusset film 60 along the up-down direction Y; in other words, the second front-side outer edge 64 and The second back side outer edge 65 is formed to be line symmetrical (left-right symmetrical) with respect to the virtual line.

The second front side outer edge 64 and the second back side outer edge 65 are, as shown in FIG. Second lower side inclined

edges

64b, 65b extending from the lower end to a second lower end connecting part 63a connecting the lower ends of the second front side outer edge 64 and the second back side outer edge 65, and from the upper end of the

second base edge

64a, 65a. It has second upper

inclined edges

64c and 65c that extend to a second upper end connecting portion 63b that connects the upper ends of the second front outer edge 64 and the second back outer edge 65, respectively.

The

second base edges

64a, 65a are formed to extend linearly along the up-down direction Y, as shown in FIG.
As shown in FIG. 4, the second lower side inclined

edges

64b, 65b are inclined in the up-down direction Y so as to be closer to the inside in the front-back direction X as they go downward (at an inclination angle of 45° in this embodiment). It extends in a straight line.
As shown in FIG. 4, the second upper side inclined

edges

64c, 65c extend in a straight line and are inclined in the up-down direction Y so as to be closer to the inside in the front-back direction X as they go upward.

Moreover, the second gusset film 60 (the second non-sealing area 63 thereof) has a flange facing area 66 where the flange of the spout 80 is arranged to face, as shown in FIG. In this embodiment, the flange facing region 66 is formed in an annular shape having a circular outer peripheral edge.
Further, the second gusset film 60 has a circular spout through hole 67 formed to penetrate in the film thickness direction and into which the spouting cylinder portion of the spout 80 is inserted.

The spout 80 is made of synthetic resin or the like, and is attached to the second gusset film 60 (second non-sealed area 63 of the pouch body 20) to function as a spout for the contents. a flange disposed opposite to the second non-sealing area 63; a spouting cylinder extending perpendicularly to the disc-shaped flange and having a spouting hole formed therein; It has an attachable cap.

In the present embodiment, the flange of the spout 80 is formed as a disc-shaped (annular) part with a through hole formed in the center and a circular outer peripheral edge (flange outer peripheral edge), and is arranged inside the pouch body 20. At least a portion of the second gusset film 60 is fixed to the inner surface of the second gusset film 60 by heat welding.

As can be seen from FIG. It is disposed to face a region between the upper side inclined edge 64c and the second upper side inclined edge 65c of the second back side outer edge 65.

Between the second upper inclined edge 64c of the second front outer edge 64 and the second upper inclined edge 65c of the second back outer edge 65, to which (at least a portion of) the flange of the spout 80 is attached, as described above. As can be seen from FIG. 1, when the gusseted pouch 10 is placed on the mounting surface with the pouch bottom 20a facing down and viewed in the front and back direction This is the part that slopes toward the inside of 20. Therefore, when the gusseted pouch 10 is placed on the mounting surface, the dispensing cylinder part of the spout 80 attached to the above area is disposed in the vertical direction Y when viewed in the front and back direction X, as can be seen from FIG. In other words, the pouch body 20 is inclined toward the outside of the pouch body 20 in the front-back direction Z as it goes upward.

The inner film 70 is formed as a rectangular (or nearly rectangular) flexible resin film having a heat-welding layer on at least one side thereof, and is folded in two as shown in FIGS. 2 and 5. It is placed in the pouch main body 20 (content storage section 21) in this state, and its predetermined locations are thermally welded to the

films

30 and 40.
As shown in FIG. 2, the inner film 70 has a front side fixing part 71 fixed to the inner surface of the front film 30 by heat welding, and a back side fixing part 72 fixed to the inner surface of the back film 40 by heat welding. have.
In addition, as shown in FIGS. 2 and 5, the inner film 70 is arranged between the front side fixing part 71 and the back side fixing part 72 so that the center of the inner film 70 in the front and back direction X is aligned with an imaginary line extending along the vertical direction Y. Along the line, there is an inner film folding part 73 in which the inner film 70 is folded in two in a valley-fold shape toward the second storage area 21b (to be described later) (a folding process is performed to maintain the folded state). are doing.
Further, as shown in FIGS. 2 and 5, the inner film 70 has a plurality of film penetration parts 74 formed in the shape of holes penetrating in the film thickness direction, and at least one of the film penetration parts 74 is , are formed on the inner film bent portion 73.

The liquid content storage section 21 has a first storage area 21a and a second storage area 21b partitioned by an inner film 70, as shown in FIG.
As shown in FIGS. 1 and 5, the first gusset film 50 functions as a side wall constituting the first accommodation area 21a, and the spout 80 is attached to a location that (directly) communicates with the second accommodation area 21b. has been done.

Further, as shown in FIGS. 1 and 2, the gusseted pouch 10 is provided with a plurality of handles 27 for the user to hold the pouch, and in this embodiment, the plurality of handles 27 are As shown in FIGS. 1 and 2, it includes a first handle part 27a and a second handle part 27b.

As shown in FIG. 3, the first handle portion 27a is connected to a first front side portion 56 of the first gusset film 50 (specifically, a portion where the first front side portion 56 and the front side film 30 are overlapped). , are respectively provided on the first back side portion 57 of the first gusset film 50 (specifically, the portion where the first back side portion 57 and the back side film 40 are overlapped).
More specifically, as shown in FIG. It is formed on the front or back side of the
Further, as shown in FIG. 3, the first handle portion 27a is formed across the thermally welded

portions

56a, 57a and the unheated welded portions 56b, 57b of the first front side/

backside side portions

56, 57.
Further, as shown in FIG. 3, the first handle portions 27a on both the front and back sides are line symmetrical (left-right symmetrical) with respect to an imaginary line extending from the center of the front and back direction X of the first gusset film 50 along the up-down direction Y. It is formed.

As shown in FIG. 3, the second handle portion 27b is connected to the first front side portion 56 of the first gusset film 50 (specifically, the portion where the first front side portion 56 and the front film 30 are overlapped). , are respectively provided on the first back side portion 57 of the first gusset film 50 (specifically, the portion where the first back side portion 57 and the back side film 40 are overlapped).
More specifically, at least a portion (a portion in this embodiment) of the second handle portion 27b is located between the front and back surfaces of the first upper

inclined edges

54c and 55c of the first front side portion 56, as shown in FIG. The second handle portion 27b is formed on a portion located on the front side or the back side in the direction X, and as shown in FIG. It is formed across the welded portions 56b and 57b.
Further, as shown in FIG. 3, the second handle portions 27b on both the front and back sides are line symmetrical (left-right symmetrical) with respect to an imaginary line extending from the center of the first gusset film 50 in the front and back direction X along the up-down direction Y. It is formed.

In this embodiment, the

handle portions

27a, 27b are connected to the first front/back side portions 56, 57 (specifically, the first front/

back side portions

56, 57 and the film), as shown in FIGS. 1 and 2. 30 and 40) is formed as a through hole that penetrates in the film thickness direction.
In addition, in FIG. 2 etc., for convenience of technical understanding, the handle portion 27 is shown as being formed without heat welding between the

films

30, 40, and 50, but in this embodiment, After thermally welding each

film

30, 40, and 50, the handle portion 27 is formed by punching at a predetermined location.

Furthermore, in the control fixing section 28 shown in FIG. The user can easily pass his or her fingers through the portion 27b.
In this embodiment, the first gusset film 50 is partially removed in the control fixing section 28 and the

films

30 and 40 are thermally welded. Any material may be used, such as one using resin.

In the gusseted pouch 10 of this embodiment obtained in this way, as shown in FIG. has been established. As a result, when dispensing the contents while lifting the pouch using the handles 27 on both sides, as the dispensing of the contents progresses, the user can hold the pouch as shown in FIG. 5(b). The first front side part 56 and the first back side part 57 on both sides gradually approach each other, and the distance between the front side film 30 and the back side film 40 on the first gusset film 50 side can be narrowed. Therefore, as the contents are poured out, the volume of the contents storage section 21 can be gradually reduced, and when the contents are poured out, external air is prevented from entering from the spout, and smooth pouring is achieved. can maintain the output.

Further, as shown in FIGS. 2 and 3, at least a portion of the handle portions 27 (27a) provided on the first front side portion 56 and the first back side portion 57 are located on the front and back sides of the first

base edge portions

54a, 55a. The handle portion 27 (27a) provided on the first front side portion 56 is formed on the front side in the direction X of the first base edge 54a. At least a portion of the handle portion 27 (27a) provided on the first back side portion 57 is formed on a portion located on the back side of the first base edge 55a in the front and back direction X. ing). Thereby, as the contents are poured out, the first front side portion 56 and the first back side portion 57 held by the user on both sides can be moved closer to each other more reliably.

Also, as shown in Figure 5, the first gusset film 50 has a first film fold 58 formed by folding the first gusset film 50 in a valley fold shape toward the inside of the pouch. As a result, as shown in Figure 5(b), the degree of folding of the first gusset film 50 can be gradually increased as the pouring of the contents progresses, allowing the first front side portion 56 and the first back side portion 57 on both sides to smoothly approach each other, thereby allowing the volume of the content storage section 21 to be smoothly reduced.

Further, as shown in FIG. 5, an inner film folding part 73 in which the inner film 70 is folded in a valley-fold shape toward the second storage area 21b side where the spout 80 is connected and attached; It has a film penetration part 74 formed on the inner film bending part 73. As a result, as the contents are poured out, the degree of bending of the inner film 70 is increased, and the side surface of the inner film 70 on the first storage area 21a side is bent as the content is poured out. Since it can function as a guide for guiding from the first storage area 21a side to the second storage area 21b side, it is possible to suppress the contents from remaining in the first storage area 21a.

Furthermore, as shown in FIGS. 1 and 5, since the spout 80 is attached to the second non-sealing area 63 of the second gusset film 60, the contents can be poured out as shown in FIG. 5(b). Sometimes, on the first gusset film 50 side, the gap between the front side film 30 and the back side film 40 narrows, whereas on the second gusset film 60 side, the front side film 30 is narrowed due to the spout 80 being attached. Also, since the gap between the back side films 40 is prevented from narrowing, the weight balance of the contents is improved when the pouch is lifted using the handles 27 on both sides of the first gusset film 50. , it is possible to perform pouring work stably.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the above embodiments, and various design modifications can be made without departing from the invention described in the claims. Furthermore, the configurations of the above-mentioned embodiments and the modified examples described below may be combined in any manner to form the gusseted pouch 10.

For example, the gusseted pouch 10 may be operated while being housed in an outer case (not shown) during use, display, or transportation, or may be operated without being housed in an outer case (not shown). The gusseted pouch 10 itself may be used or displayed or transported.

Further, regarding specific embodiments of each of the

films

30, 40, 50, 60, and 70, at least one side is coated with a heat-fusible layer made of olefin-based material such as low-density polyethylene or polypropylene, or polyester-based material such as PET (polyethylene terephthalate). Any layer may be laminated on a single heat-welding layer or on a heat-welding layer as long as it has the following properties. The laminated material may be any material, and may be formed by laminating known polyesters such as PET and PBT (polybutylene terephthalate), polyamides such as nylon, polyolefins such as polypropylene and polyethylene, aluminum foil, etc. good.
In addition, in the embodiment described above, the pouch body 20 was explained as being formed from four

films

30, 40, 50, and 60, but the number of films constituting the pouch body 20, etc. The specific aspect of the main body 20 is not limited to the above, and for example, a bottom gusset film may be separately provided at a position corresponding to the pouch bottom 20a.
Moreover, the gusseted pouch 10 may be configured as a gusseted pouch provided with only the first gusset film 50 without providing the second gusset film 60.
Further, the inner film 70 may not be provided.
Further, in the embodiment described above, the gusseted pouch 10 is configured as a large capacity pouch with a capacity of 2 to 5 L, and the spout 80 is also configured as a large spout with an outer diameter of the flange of 50 to 70 mm. The sizes of the gusseted pouch 10 and the spout 80 are not limited to these, and may be arbitrarily set according to the embodiment.

In addition, in the above-described embodiment, the first front outer edge 54 and the first back outer edge 55 are described as being formed in line symmetry (bilateral symmetry) with respect to a virtual line extending along the up-down direction Y through the center of the first gusset film 50 in the front-back direction X. However, the first front outer edge 54 and the first back outer edge 55 may be formed asymmetrically.
Similarly, in the above-described embodiment, the second front outer edge 64 and the second back outer edge 65 are described as being formed in line symmetry (bilateral symmetry) with respect to a virtual line extending along the up-down direction Y through the center of the second gusset film 60 in the front-back direction X, but the second front outer edge 64 and the second back outer edge 65 may be formed asymmetrically.

Further, in the embodiment described above, the gusseted pouch 10 is described as having the spout 80, but without providing the spout 80, at least a part of the

films

30, 40, 50 is cut with scissors or the like. It may be configured to form a pouring opening for pouring out the contents in the contents storage section 21.

Furthermore, in the above-described embodiment, the flange is described as having a disk shape with a circular outer periphery. Any type of material may be used, such as one having an outer peripheral edge (flange outer peripheral edge).
Further, in the above-described embodiment, the flange was described as being fixed to the inner surface of the second gusset film 60, but the flange may be fixed to the outer surface of the second gusset film 60.
Furthermore, the flange may be fixed to the second gusset film 60 by any method other than thermal welding, such as adhesion.

In this specification, terms such as "top", "bottom", and "side" are used to indicate up and down, but these terms refer to the orientation of the gusseted pouch 10 during display, transportation, etc. For example, the gusseted pouch 10 may be placed on a placement surface with the sides or top of the gusseted pouch 10 facing down during display or transportation.

Furthermore, in the embodiment described above, the

inclined edges

54b, 54c, 55c, 55b, 64b, 64c, 65c, and 65b were described as being composed of one straight line portion extending obliquely in the vertical direction Y. , the specific aspects of the

inclined edges

54b, 54c, 55c, 55b, 64b, 64c, 65c, 65b are not limited to the above, but may be formed of at least one straight line part, at least one curved part, or a combination thereof. good.

Further, in the embodiment described above, the first front/

back side portions

56, 57 were described as including the heat welded

portions

56a, 57a and the unheated welded portions 56b, 57b, but the first front/back side portions It is not necessary to form the unheated welded portions 56b, 57b on the first front and

back side portions

56, 57. In other words, the

films

30, 40 may be heat welded over the entire area of the first front and

back side portions

56, 57.

Furthermore, in the above-described embodiment, the handle portion 27 was described as having a through-hole shape for the user to grasp the pouch body 20 through his or her hand or fingers. However, the specific aspect of the handle portion 27 is The pouch is not limited to the above, but any form suitable for the user to hold the pouch may be used.
For example, the handle portion 27 may be formed in the shape of a notch cut out from the outer edge of the film of the first front/

back side portions

56, 57 toward the inside of the film; Rather than forming a through hole or a notch in the first front/back side parts 57 , a separate film or the like is fixed to the first front/back

side parts

56 , 57 so that the handle part 27 can be attached to the first front/back

side parts

56 , 57 . may be provided.

Furthermore, in the embodiment described above, the handle portion 27 is formed in the shape of a hole (or in the shape of a wide slit) passing through the

films

30, 40, and 50 in the film thickness direction, as shown in FIG. 2 and the like. However, the specific aspect of the handle portion 27 is not limited to the above, and the handle portion 27 is not limited to the above, but may be a cut-like slit that penetrates the

films

30, 40, 50 in the film thickness direction (with respect to the extending direction without material removal). The handle portion 27 may be formed in the form of a slit having no width in the direction orthogonal to the handle portion. In addition, when the handle part 27 is formed into a hole shape (or a wide slit shape), the visibility of the handle part 27 can be improved, and the position and existence of the handle part 27 can be easily noticed.

Further, when the handle portion 27 is formed in the shape of a through hole, at least a portion of the handle portion 27 may be formed in the first front side and back

side portions

56 and 57.
Further, in the embodiment described above, the handle portion 27 (the first handle portion 27a, the second handle portion 27b) includes the heat welded

portions

56a, 57a and the unheated welded portion 56b of the first front and

back side portions

56, 57, 57b, the entire area of the handle portion 27 (first handle portion 27a, second handle portion 27b) may be formed into the heat welded

portions

56a, 57a or the unheated welded portions 56b, 57b. It's okay.

Further, in the above-described embodiment, the first handle part 27a and the second handle part 27b are provided as the handle part 27, but only one of the first handle part 27a and the second handle part 27b is provided. Further, as shown in FIG. 6, another handle portion 27 may be provided at a location other than the

handle portions

27a and 27b (in the example shown in FIG. 6, the bottom seal portion 25).

10... Gusseted pouch 20... Pouch body 20a... Pouch bottom 21... Content storage section 21a... First storage area 21b... Second storage area 22... First side Seal 23... Second side seal 24... Top seal 25... Bottom seal 26... Intermediate seal 27... Handle portion 27a... First handle portion (handle portion)
27b... Second handle part (handle part)
28... Control fixing part 30... Front side film 40... Back side film 50... First gusset film 51... First front side seal area 52... First back side seal area 53... First 1 non-seal area 53a... First lower end connecting portion 53b... First upper end connecting portion 54... First front side outer edge 54a... First base edge 54b... First lower side inclined edge 54c... First upper inclined edge 55... First back side outer edge 55a... First base edge 55b... First lower inclined edge 55c... First upper inclined edge 56... First front side part 56a... Heat welded part 56b... Unheated welded part 57... First back side part 57a... Heat welded part 57b... Unheated welded part 58 ... First film bending part 60 ... Second gusset film 61 ... Second front side seal area 62 ... Second back side seal area 63 ... Second non-seal area 63a ... Second lower end Connecting portion 63b... Second upper end connecting portion 64... Second front side outer edge 64a... Second base edge 64b... Second lower side inclined edge 64c... Second upper side inclined edge 65... Second back outer edge 65a... Second base edge 65b... Second lower inclined edge 65c... Second upper inclined edge 66... Flange opposing region 67... Spout through hole 70...Inner film 71...Front side fixed part 72...Back side fixed part 73...Inner film bent part 74...Film penetration part 80...Spout X...Front and back Direction Y: Vertical direction Z: Front-back direction

Claims

A front side film, a back side film that faces the front side film in the front and back direction with the content storage section in between, a first gusset film that is thermally welded to the front side film and the back side film by a first side seal, A gusseted pouch comprising a handle for holding the pouch,
The first gusset film includes a first front side seal area that is heat welded to the front side film, a first back side seal area that is heat welded to the back side film, the first front side seal area and the first back side seal area. a first non-sealing region which is an inner region of the first non-sealing region;
The first gusset film has a first front side part located on the front side in the front and back direction of the first non-sealing area, and a first back side part located on the back side in the front and back direction of the first non-sealing area,
A gusseted pouch, wherein the first front side portion and the first back side portion are each provided with the handle portion.
The first non-sealed area has a first front side outer edge that is a boundary with the first front side sealed area and a first back side outer edge that is a boundary with the first back side sealed area,
The first outer edge on the front side and the outer edge on the first back side include a first base edge that is spaced apart from each other in the front and back direction, and from the upper end of the first base edge, the first outer edge on the front side and the first back side. A first upper inclined edge portion extending to a first upper end connecting portion that connects the upper ends of the outer edges, and a first lower end portion extending to a first lower end connecting portion connecting the lower ends of the first front side outer edge and the first back side outer edge. each having a side sloping edge;
At least a portion of the handle provided on the first front side portion is formed in a portion of the first outer edge of the first front side located on the front side in the front-back direction of the first base edge,
At least a portion of the handle provided on the first backside side portion is formed in a portion of the first backside outer edge located on the backside in the front-to-back direction of the first base edge. The gusseted pouch according to claim 1.
The gusseted pouch according to claim 1, wherein the handle portion is formed as a through hole formed in the first front side portion and the first back side portion in the film thickness direction. .
The first gusset film has a first film folding portion that is formed by folding the first gusset film in a valley-fold shape toward the inside of the pouch between the first front side portion and the first back side portion. The gusseted pouch according to claim 1, wherein the gusseted pouch has a gusseted pouch.
further comprising an inner film disposed within the liquid content storage section,
The content liquid storage section has a first storage area and a second storage area partitioned by the inner film,
The first gusset film functions as a side wall constituting the first storage area,
The inner film has a front side fixing part fixed to the inner side surface of the front side film, a back side fixing part heat-welded to the inner side surface of the back side film, and a part of the inner side fixed part between the front side fixing part and the back side fixing part. A claim characterized in that the film has an inner film folding part in which the film is folded in a valley-fold shape toward the second storage area, and a film penetration part formed on the inner film folding part. The gusseted pouch according to item 1.
The device further includes a second gusset film that is arranged opposite to the first gusset film in the front-rear direction with the liquid content storage portion in between and is thermally welded to the front side film and the back side film by a second side seal, and a spout. ,
The second gusset film includes a second front side seal area that is heat welded to the front side film, a second back side seal area that is heat welded to the back side film, the second front side seal area and the second back side seal area. a second non-sealing region, which is an inner portion of the second non-sealing region;
The gusseted pouch according to claim 1, wherein the spout is attached to the second non-sealed area.