TECHNICAL FIELD
The disclosure relates to a gusseted pouch including a first gusset film that is heat-sealed to a front film and a back film by a first side seal.
BACKGROUND
The present applicant has ever proposed a gusseted pouch including a first gusset film that is heat-sealed to a front film and a back film at a first side seal in JP 2020-132177 A as a container for storing content such as drinking water and liquid detergent.
SUMMARY
However, in such a gusseted pouch, a phenomenon in which external air enters the pouch from a pouring out mouth may occur in the middle of pouring the content through the pouring out mouth, and the occurrence of the phenomenon in which external air enters the pouch causes so-called pulsation, which may hinder smooth pouring.
Therefore, the disclosure has been made to solve these problems, and an object of the disclosure is to provide a gusseted pouch that maintains smooth pouring out properties of content with a simple configuration.
The problem is solved by the disclosure that is a gusseted pouch including: a front film; a back film opposed to the front film in a front-back direction with a content storage portion interposed between the back film and the front film; a first gusset film heat-sealed to the front film and the back film at a first side seal; and a handle portion for a user to hold the gusseted pouch, in which the first gusset film includes a first front seal region heat-sealed to the front film, a first back seal region heat-sealed to the back film, and a first non-seal region, which is a region inside the first front seal region and the first back seal region, the first gusset film includes a first front side part positioned on a front side in a front-back direction of the first non-seal region and a first back side part positioned on a back side in the front-back direction of the first non-seal region, and the handle portion is provided in each of the first front side part and the first back side part.
According to the invention according to claim 1, each of both the first front side part and the first back side part of the first gusset film is provided with the handle portion. Due to this, when the content is poured out in a state where the pouch is lifted using the handle portions on both sides, the first front side part and the first back side part on both sides held by the user gradually approach each other as the pouring out of the content proceeds, and it is possible to narrow an interval between the front film and the back film on the first gusset film side. Therefore, it is possible to gradually reduce the volume of the content storage portion as the pouring out of the content proceeds, to help prevent external air from entering from the pouring out mouth at the time of pouring out the content, and to maintain smooth pouring out of the content.
According to the invention according to claim 2, at least a part of each of the handle portions provided in the first front side part and the first back side part is formed in a part positioned on a side in the front-back direction of the first base edge portion, whereby it is possible to more reliably generate a motion of bringing the first front side part and the first back side part of both sides held by the user close to each other as the pouring out of the content proceeds.
According to the invention according to claim 3, the handle portion is formed as a through hole formed to extend through a corresponding one of the first front side part and the first back side part in the film thickness direction, whereby the structure of the handle portion can be simplified, and the pouch structure can be avoided from becoming complicated.
According to the invention according to claim 4, the first film folded portion in which the first gusset film is folded in a valley fold toward an inside of the gusseted pouch is formed on the first gusset film, whereby it is possible to gradually increase the degree of folding of the first gusset film as the pouring out of the content proceeds and to smoothly bring the first front side part and the first back side part on both sides close to each other, and therefore it is possible to smoothly reduce the volume of the content storage portion.
According to the invention according to claim 5, the inner film includes an inner film folded portion in which the inner film is folded in a valley fold toward the second storage region, and a film through portion formed on the inner film folded portion. Due to this, it is possible to increase the degree of folding of the inner film as pouring out of the content proceeds and cause the side surface on the first storage region side of the inner film to function as a guide for guiding the content from the first storage region side to the second storage region side, and thus it is possible to help prevent the content from remaining in the first storage region.
According to the invention according to claim 6, a spout is mounted on a second non-seal region of a second gusset film, whereby at the time of pouring out the content, the interval between the front film and the back film is narrowed on the first gusset film side, whereas the interval between the front film and the back film on the second gusset film side is prevented from being narrowed because of the mounted spout. Therefore, the weight balance of the content in a state where the pouch is lifted using the handle portions on both sides of the first gusset film is improved, and therefore the pouring out operation can be stably performed.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a perspective view illustrating a gusseted pouch according to one embodiment of the disclosure.
FIG. 2 is an explanatory view illustrating each film constituting a pouch body.
FIG. 3 is an explanatory view illustrating a first gusset film.
FIG. 4 is an explanatory view illustrating a second gusset film.
FIGS. 5(a) and 5(b) are explanatory views each illustrating an example of a usage aspect of the gusseted pouch.
FIGS. 6(a) and 6(b) are explanatory views each illustrating a modification of the gusseted pouch.
DESCRIPTION OF EMBODIMENTS A gusseted pouch 10 according to one embodiment of the disclosure will be described below with reference to the drawings.
The gusseted pouch 10 stores various types of content in a liquid state or the like such as herbicides, drinking water, and liquid detergent, and includes, as illustrated in FIGS. 1 and 2, a pouch body 20 formed in a bag shape by heat-sealing films 30, 40, 50, and 60 having flexibility to form a sealing portion for bag production, an inner film 70 disposed in the pouch body 20 (content storage portion 21), and a spout 80 mounted on the pouch body 20.
The pouch body 20 is configured as what is called a side gusset type pouch having gusset portions formed on both side portions, and includes, as illustrated in FIGS. 1 and 2, a front film 30 and a back film 40, which are disposed opposite to each other in a front-back direction X with a content storage portion 21 interposed between the front film 30 and the back film 50, a first gusset film 50, which is disposed between the front film 30 and the back film 40 on one side of a pouch side portion and is heat-sealed to the front film 30 and the back film 40 at a first side seal 22, and a second gusset film 60, which is disposed opposite to the first gusset film 50 in a back-and-forth direction Z with the content storage portion 21 interposed between the second gusset film 60 and the first gusset film 50 and is heat-sealed to the front film 30 and the back film 40 at a second side seal 23 on the other side of the pouch side portion.
Each of the films 30, 40, 50, 60, and 70 is formed as a resin film including a heat-sealing layer on at least one surface thereof, and disposed such that the heat-sealing layers are opposed to each other at locations where the films are heat-sealed to each other.
Note that in FIG. 2 and the like, heat-sealed regions of the films 30, 40, 50, 60, and 70 are indicated by shading.
As illustrated in FIG. 1 and FIG. 2, the pouch body 20 includes the first side seal 22 in which both sides in the lateral direction of the first gusset film 50 are heat-sealed to the films 30 and 40, the second side seal 23 in which both sides in the lateral direction of the second gusset film 60 are heat-sealed to the films 30 and 40, a top seal 24 in which the films 30 and 40 are fixed at a position between the first side seal 22 and the second side seal 23 in the back-and-forth direction Z and corresponding to a top portion of the pouch body 20 opposed to a bottom seal 25 with the content storage portion 21 interposed between the top seal 24 and the bottom seal 25, the bottom seal 25 in which the films 30 and 40 are fixed at a position corresponding to a pouch bottom portion 20a of the pouch body 20, and an intermediate seal 26 in which the films 30 and 40 and the inner film 70 are heat-sealed. These seals 22 to 26 constitute a sealing portion for bag production.
When the inner film 70 is provided as in the present embodiment, the top seal 24 and the bottom seal 25 include a part where the films 30 and 40 are fixed by performing heat-sealing directly between the films 30 and 40, and a part where the inner film 70 is interposed between the films 30 and 40 and the films 30 and 40 are fixed by performing heat-sealing among the films 30, 40, and 70.
In a case where the gusseted pouch 10 is formed without providing the inner film 70, the top seal 24 and the bottom seal 25 only includes a part where the films 30 and 40 are fixed by directly heat-sealing the films 30 and 40.
As illustrated in FIG. 3, the first gusset film 50 includes a first front seal region 51 heat-sealed to the front film 30 in the first side seal 22, a first back seal region 52 heat-sealed to the back film 40 in the first side seal 22, and a first non-seal region 53, which is a region on an inner side of the first front seal region 51 and the first front back seal region 52.
As illustrated in FIG. 3, the first non-seal region 53 includes a first front outer edge 54, which is a boundary with the first front seal region 51, and a first back outer edge 55, which is a boundary with the first back seal region 52.
The first gusset film 50 is formed in line symmetry (left-right symmetry) with respect to a virtual line extending in an up-down direction Y at a center in the front-back direction X of the first gusset film 50. In other words, the first front outer edge 54 and the first back outer edge 55 are formed in line symmetry (left-right symmetry) with respect to the virtual line.
As illustrated in FIG. 3, the first front outer edge 54 and the first back outer edge 55 respectively include first base edge portions 54a and 55a disposed apart from each other in the front-back direction X, first lower inclination edge portions 54b and 55b respectively extending from lower ends of the first base edge portions 54a and 55a to a first lower end coupling portion 53a coupling lower ends of the first front outer edge 54 and the first back outer edge 55 to each other, and first upper inclination edge portions 54c and 55c respectively extending from upper ends of the first base edge portions 54a and 55a to a first upper end coupling portion 53b coupling upper ends of the first front outer edge 54 and the first back outer edge 55 to each other.
As illustrated in FIG. 3, the first base edge portions 54a and 55a are formed linearly extending in the up-down direction Y.
As illustrated in FIG. 3, the first lower inclination edge portions 54b and 55b extend linearly in the up-down direction Y and inclined (at an inclination angle of 45° in the present embodiment) so as to be closer to the inner side in the front-back direction X as they extend downwardly.
As illustrated in FIG. 3, the first upper inclination edge portions 54c and 55c extend linearly in the up-down direction Y and inclined (at an inclination angle of 45° in the present embodiment) so as to be closer to the inner side in the front-back direction X as they extend upwardly.
As illustrated in FIG. 3, the first gusset film 50 includes a first front side part 56 positioned on a front side in the front-back direction X of the first non-seal region 53 (a front side in the front-back direction X relative to the first front outer edge 54), and a first back side part 57 positioned on a back side in the front-back direction X of the first non-seal region (a back side in the front-back direction X relative to the first back outer edge 55).
In the present embodiment, as illustrated in FIG. 3, the first front and back side parts 56 and 57 include heat-sealed parts 56a and 57a heat-sealed to the films 30 and 40, and non-heat-sealed parts 56b and 57b not heat-sealed to the films 30 and 40.
Note that in the present embodiment, as illustrated in FIG. 3, the non-heat-sealed parts 56b and 57b are formed to be sandwiched between the heat-sealed parts 56a and 57a in the front-back direction X.
As illustrated in FIG. 3, each of the first front side part 56 (specifically, a part where the first front side part 56 and the front film 30 overlap each other) and the first back side part 57 (specifically, a part where the first back side part 57 and the back film 40 overlap each other) is provided with handle portions 27 (a first handle portion 27a and a second handle portion 27b) described later.
As illustrated in FIG. 2 and FIGS. 5(a) and 5(b), the first gusset film 50 includes a first film folded portion 58 in which the first gusset film 50 is folded (subjected to a folding process for maintaining a folded state) into two in a valley fold toward the inside of the pouch along a virtual line extending along the up-down direction Y at the center in the front-back direction X of the first gusset film 50 between the first front side part 56 and the first back side part 57.
As illustrated in FIG. 4, the second gusset film 60 includes a second front seal region 61 heat-sealed to the front film 30 in the second side seal 23, a second back seal region 62 heat-sealed to the back film 40 in the second side seal 23, and a second non-seal region 63, which is a region on an inner side of the second front seal region 61 and the second front back seal region 62.
As illustrated in FIG. 4, the second non-seal region 63 includes a second front outer edge 64, which is a boundary with the second front seal region 61, and a second back outer edge 65, which is a boundary with the second back seal region 62.
The second gusset film 60 is formed in line symmetry (left-right symmetry) with respect to a virtual line extending in the up-down direction Y at a center of the second gusset film 60 in the front-back direction X. In other words, the second front outer edge 64 and the second back outer edge 65 are formed in line symmetry (left-right symmetry) with respect to the virtual line.
As illustrated in FIG. 4, the second front outer edge 64 and the second back outer edge 65 respectively include second base edge portions 64a and 65a disposed apart from each other in the front-back direction X, second lower inclination edge portions 64b and 65b respectively extending from lower ends of the second base edge portions 64a and 65a to a second lower end coupling portion 63a coupling lower ends of the second front outer edge 64 and the second back outer edge 65 to each other, and second upper inclination edge portions 64c and 65c respectively extending from upper ends of the second base edge portions 64a and 65a to a second upper end coupling portion 63b coupling upper ends of the second front outer edge 64 and the second back outer edge 65 to each other.
As illustrated in FIG. 4, the second base edge portions 64a and 65a are formed linearly extending in the up-down direction Y.
As illustrated in FIG. 4, the second lower inclination edge portions 64b and 65b extend linearly in the up-down direction Y and inclined (at an inclination angle of 45° in the present embodiment) so as to be closer to the inner side in the front-back direction X as they extend downwardly.
As illustrated in FIG. 4, the second upper inclination edge portions 64c and 65c extend linearly in the up-down direction Y and inclined so as to be closer to the inner side in the front-back direction X as they extend upwardly.
As illustrated in FIG. 4, (the second non-seal region 63 of) the second gusset film 60 includes a flange opposite region 66 where a flange of the spout 80 is disposed to be opposed thereto. In the present embodiment, the flange opposite region 66 is formed in an annular shape having a circular outer peripheral edge.
The second gusset film 60 has a spout through hole 67 having a circular shape for inserting a pouring out tube portion of the spout 80, which is formed to extend through the second gusset film 60 in a film thickness direction.
The spout 80 is formed of a synthetic resin or the like, is mounted on (the second non-seal region 63 of) the second gusset film 60 of the pouch body 20 to function as a pouring out mouth for content, and includes a flange disposed opposite to the second non-seal region 63 of the second gusset film 60, the pouring out tube portion extending perpendicularly with respect to the flange having a disk shape and having a pouring out hole, and a cap detachably attached to a tip end of the pouring out tube portion.
In the present embodiment, the flange of the spout 80 is formed as a site having a disk shape (annular shape) having a circular outer peripheral edge (flange outer peripheral edge) with a through hole formed at the center thereof, and is disposed inside the pouch body 20, and at least a part thereof is fixed to an inner side surface of the second gusset film 60 by heat sealing.
As seen from FIG. 4, at least a part (a part in the present embodiment) of the flange (flange opposite region 66) including the center of the flange (flange opposite region 66) of the spout 80 is disposed opposite to a region between the second upper inclination edge portion 64c of the second front outer edge 64 and the second upper inclination edge portion 65c of the second back outer edge 65.
As seen from FIG. 1, the region on which (at least a part of) the flange of the spout 80 is mounted, the region being located between the second upper inclination edge portion 64c of the second front outer edge 64 and the second upper inclination edge portion 65c of the second back outer edge 65, is a part inclined so as to be closer to the inner side of the pouch body 20 in the back-and-forth direction Z as it goes upward as viewed in the front-back direction X in a state where the gusseted pouch 10 is placed on a placement surface with the pouch bottom 20a facing downward. Therefore, in a state where the gusseted pouch 10 is placed on the placement surface, as seen from FIG. 1, the pouring out tube portion of the spout 80 attached to the region described above is obliquely upwardly inclined extending obliquely with respect to the up-down direction Y (and the back-and-forth direction Z) as viewed in the front-back direction X, in other words, is brought into a state of being inclined so as to be closer to an outer side of the pouch body 20 in the back-and-forth direction Z as it goes upward.
The inner film 70 is formed as a resin film including a heat-sealing layer on at least one surface thereof and having a rectangular (or substantially rectangular) shape and flexibility. As seen from FIGS. 2, 5(a), and 5(b), the inner film 70 is disposed in the pouch body 20 (content storage portion 21) in a state of being folded in two, and predetermined locations thereof are heat-sealed to the films 30 and 40.
As illustrated in FIG. 2, the inner film 70 includes a front fixation portion 71 fixed to the inner side surface of the front film 30 by heat sealing, and a back fixation portion 72 heat-sealed to the inner side surface of the back film 40 by heat sealing.
As illustrated in FIG. 2 and FIGS. 5(a) and 5(b), the inner film 70 includes an inner film folded portion 73 in which the inner film 70 is folded (subjected to a folding process for maintaining a folded state) into two in a valley fold toward a second storage region 21b described later along a virtual line extending along the up-down direction Y at the center in the front-back direction X of the inner film 70 between the front fixation portion 71 and the back fixation portion 72.
As illustrated in FIGS. 2, 5(a), and 5(b), the inner film 70 has a plurality of film through portions 74 formed in a hole shape extending through the inner film 70 in the film thickness direction, and at least one of the film through portions 74 is formed on the inner film folded portion 73.
As illustrated in FIGS. 5(a) and 5(b), the liquid content storage portion 21 includes a first storage region 21a and a second storage region 21b partitioned by the inner film 70.
As illustrated in FIGS. 1, 5(a), and 5(b), the first gusset film 50 functions as a side wall constituting the first storage region 21a, and the spout 80 is mounted on a location where the spout 80 is in (direct) communication with the second storage region 21b.
As illustrated in FIGS. 1 and 2, the gusseted pouch 10 is provided with a plurality of the handle portions 27 for the user to hold the pouch, and in the present embodiment, the plurality of handle portions 27 include the first handle portion 27a and the second handle portion 27b as illustrated in FIGS. 1 and 2.
As illustrated in FIG. 3, the first handle portion 27a is provided on each of the first front side part 56 (specifically, a part where the first front side part 56 and the front film 30 overlap each other) of the first gusset film 50 and the first back side part 57 (specifically, a part where the first back side part 57 and the back film 40 overlap each other) of the first gusset film 50.
More specifically, at least a part (entirely in the present embodiment) of the first handle portions 27a are formed in a part positioned on the front side or the back side in the front-back direction X of the first base edge portions 54a and 55a of the first front side part 56 as illustrated in FIG. 3.
As illustrated in FIG. 3, the first handle portions 27a are formed to straddle the heat-sealed parts 56a and 57a and the non-heat-sealed parts 56b and 57b of the first front and back side parts 56 and 57.
As illustrated in FIG. 3, the first handle portions 27a on both the front and back sides are formed in line symmetry (left-right symmetry) with respect to a virtual line extending along the up-down direction Y at the center in the front-back direction X of the first gusset film 50.
As illustrated in FIG. 3, the second handle portion 27b is provided on each of the first front side part 56 (specifically, a part where the first front side part 56 and the front film 30 overlap each other) of the first gusset film 50 and the first back side part 57 (specifically, a part where the first back side part 57 and the back film 40 overlap each other) of the first gusset film 50.
More specifically, at least a part (a part in the present embodiment) of the second handle portions 27b are formed in a part positioned on the front side or the back side in the front-back direction X of the first upper inclination edge portions 54c and 55c of the first front side part 56 as illustrated in FIG. 3, and the second handle portions 27b are formed to straddle the heat-sealed parts 56a and 57a and the non-heat-sealed parts 56b and 57b of the first front and back side parts 56 and 57 as illustrated in FIG. 3.
As illustrated in FIG. 3, the second handle portions 27b on both the front and back sides are formed in line symmetry (left-right symmetry) with respect to a virtual line extending along the up-down direction Y at the center in the front-back direction X of the first gusset film 50.
In the present embodiment, as illustrated in FIGS. 1 and 2, the handle portions 27a and 27b are formed as through holes formed to extend through the first front and back side parts 56 and 57 (specifically, a part where the first front and back side parts 56 and 57 are overlapped with the films 30 and 40) in the film thickness direction.
Note that in FIG. 2 and the like, for convenience of technical understanding, the handle portion 27 has been illustrated as being formed in a state where heat-seal is not performed among the films 30, 40, and 50, but in the present embodiment, the handle portion 27 is formed by subjecting the films 30, 40, and 50 to heat sealing and then performing a punching process on predetermined locations.
In a control fixation portion 28 illustrated in FIG. 1, the inner side surfaces of the films 30 and 40 are fixed to each other, whereby the second handle portions 27b on both sides in the front-back direction are prevented from separating from each other, and the user can easily pass a finger or the like through the second handle portions 27b.
Note that in the present embodiment, the first gusset film 50 is partially removed and the films 30 and 40 are heat-sealed in the control fixation portion 28, but the fixing method in the control fixation portion 28 may be any method such as using an adhesive or a molten resin.
In the gusseted pouch 10 of the present embodiment obtained in this manner, as illustrated in FIGS. 5(a) and 5(b), each of both the first front side part 56 and the first back side part 57 of the first gusset film 50 is provided with the handle portion 27. Due to this, when the content is poured out in a state where the pouch is lifted using the handle portions 27 on both sides, the first front side part 56 and the first back side part 57 on both sides held by the user gradually approach each other as illustrated in FIG. 5(b) as the pouring out of the content proceeds, and it is possible to narrow an interval between the front film 30 and the back film 40 on the first gusset film 50 side. Therefore, it is possible to gradually reduce the volume of the content storage portion 21 as the pouring out of the content proceeds, to help prevent external air from entering from the pouring out mouth at the time of pouring out the content, and to maintain smooth pouring out of the content.
As illustrated in FIGS. 2 and 3, at least a part of the handle portions 27 (27a) provided in the first front side part 56 and the first back side part 57 are formed in parts positioned on the sides in the front-back direction X of the first base edge portions 54a and 55a (i.e., at least a part of the handle portion 27 (27a) provided in the first front side part 56 is formed in a part positioned on the front side in the front-back direction X of the first base edge portion 54a, and at least a part of the handle portion 27 (27a) provided in the first back side part 57 is formed in a part positioned on the back side in the front-back direction X of the first base edge portion 55a). This can more reliably generate a motion of bringing the first front side part 56 and the first back side part 57 of both sides held by the user close to each other as the pouring out of the content proceeds.
As illustrated in FIGS. 5(a) and 5(b), the first film folded portion 58 in which the first gusset film 50 is folded in a valley fold toward the inside of the pouch is formed on the first gusset film 50. Due to this, as illustrated in FIG. 5(b), it is possible to gradually increase the degree of folding of the first gusset film 50 as the pouring out of the content proceeds and to smoothly bring the first front side part 56 and the first back side part 57 on both sides close to each other, and therefore it is possible to smoothly reduce the volume of the content storage portion 21.
As illustrated in FIGS. 5(a) and 5(b), the inner film 70 includes the inner film folded portion 73 in which the inner film 70 is folded in a valley fold toward the second storage region 21b on which the spout 80 is mounted and that is in communication with the spout 80, and the film through portion 74 formed on the inner film folded portion 73. Due to this, as illustrated in FIG. 5(b), it is possible to increase the degree of folding of the inner film 70 as pouring out of the content proceeds and cause the side surface on the first storage region 21a side of the inner film 70 to function as a guide for guiding the content from the first storage region 21a side to the second storage region 21b side, and thus it is possible to help prevent the content from remaining in the first storage region 21a.
As illustrated in FIGS. 1, 5(a), and 5(b), the spout 80 is mounted on the second non-seal region 63 of the second gusset film 60, whereby, as illustrated in FIG. 5(b), at the time of pouring out the content, the interval between the front film 30 and the back film 40 is narrowed on the first gusset film 50 side, whereas the interval between the front film 30 and the back film 40 on the second gusset film 60 side is prevented from being narrowed because of the mounted spout 80. Therefore, the weight balance of the content in a state where the pouch is lifted using the handle portions 27 on both sides of the first gusset film 50 is improved, and therefore the pouring out operation can be stably performed.
An embodiment of the disclosure has been described in detail above, but the disclosure is not limited to the embodiment described above, and various design changes can be made without departing from the disclosure described in the claims. The gusseted pouch 10 may be configured by discretionarily combining the configurations of the above-described embodiment and the modifications described later.
For example, the gusseted pouch 10 may be stored and operated in an exterior case (not illustrated) at the time of use, display, or transportation, or the gusseted pouch 10 itself may be used, displayed, or transported without being stored in an exterior case (not illustrated).
Regarding a specific aspect of each of the films 30, 40, 50, 60, and 70, as long as each film includes, on at least one surface thereof, a layer having a heat-sealing property, such as an olefin-based layer made of low density polyethylene or polypropylene or a polyester-based layer made of polyethylene terephthalate (PET), or the like, a single film of the heat-sealing layer may be used, or any desired layer may be layered to the heat-sealing layer. Any material may be used as a material constituting the multilayer, and the multilayer may be formed as desired by layering a known polyester such as PET or polybutylene terephthalate (PBT), polyamide such as nylon, polyolefin such as polypropylene or polyethylene, aluminum foil, or the like.
In the embodiment described above, the pouch body 20 has been described as being formed of four films, namely the films 30, 40, 50, and 60. However, a specific aspect of the pouch body 20, such as the number of films constituting the pouch body 20, is not limited to the above and, for example, a gusset film for the bottom portion may be separately provided at a position corresponding to the pouch bottom portion 20a.
The gusseted pouch 10 may be configured as a gusseted pouch provided with only the first gusset film 50 without being provided with the second gusset film 60.
The inner film 70 needs not be provided.
In the embodiment described above, the gusseted pouch 10 is configured as a large-capacity pouch having a capacity of 2 to 5 L, and the spout 80 is also configured as a large-size spout having a flange with an outer diameter of 50 to 70 mm. However, the sizes of the gusseted pouch 10 and the spout 80 are not limited to these, and may be discretionarily set depending on the embodiment.
In the embodiment described above, the first front outer edge 54 and the first back outer edge 55 have been described as being formed in line symmetry (left-right symmetry) with respect to the virtual line extending in the up-down direction Y at the center in the front-back direction X of the first gusset film 50. However, the first front outer edge 54 and the first back outer edge 55 may be formed in left-right asymmetry.
Similarly, in the embodiment described above, the second front outer edge 64 and the second back outer edge 65 have been described as being formed in line symmetry (left-right symmetry) with respect to the virtual line extending in the up-down direction Y at the center in the front-back direction X of the second gusset film 60. However, the second front outer edge 64 and the second back outer edge 65 may be formed in left-right asymmetry.
In the embodiment described above, the gusseted pouch 10 has been described as including the spout 80, but the gusseted pouch 10 may be configured such that at least a part of the films 30, 40, and 50 is cut with scissors or the like without being provided with the spout 80 to form a pouring out opening for pouring out the content in the content storage portion 21.
In the embodiment described above, the flange has been described as being formed in a disk shape having a circular outer peripheral edge. However, the specific shape of the flange may be any shape such as a shape having an outer peripheral edge (flange outer peripheral edge) having a shape other than a circular shape such as a rectangular shape or a polygonal shape.
In the embodiment described above, the flange has been described as being fixed to the inner side surface of the second gusset film 60, but the flange may be fixed to an outer side surface of the second gusset film 60.
The method of fixing the flange to the second gusset film 60 may be any method such as adhesion other than heat sealing.
Note that the present description uses terms indicating upper and lower sides such as “top portion”, “bottom portion”, and “side portion”; however the terms do not limit the orientation of installation of the gusseted pouch 10 at the time of display, transportation, or the like, and for example, the gusseted pouch 10 may be installed on the placement surface with the side portion or the top portion of the gusseted pouch 10 facing downward at the time of display, transportation, or the like.
In the embodiment described above, the inclination edge portions 54b, 54c, 55c, 55b, 64b, 64c, 65c, and 65b have been described as being constituted by one linear part extending in an inclined manner in the up-down direction Y, but a specific aspect of the inclined portions 54b, 54c, 55c, 55b, 64b, 64c, 65c, and 65b is not limited to this, and they may be constituted by at least one linear part, at least one curved part, or a combination thereof.
In the embodiment described above, the first front and back side parts 56 and 57 have been described as including the heat-sealed parts 56a and 57a and the non-heat-sealed parts 56b and 57b. However, the non-heat-sealed parts 56b and 57b need not be formed in the first front and back side parts 56 and 57, that is, the films 30 and 40 may be heat-sealed over the entire first front and back side parts 56 and 57.
In the embodiment described above, the handle portion 27 has been described as being formed in a through hole shape for the user to grasp the pouch body 20 through a hand or a finger, but a specific aspect of the handle portion 27 is not limited to the above, and any aspect may be used as long as the aspect is suitable for the user to hold the pouch.
For example, the handle portion 27 may be formed in a cutout shape cut out from the film outer edges of the first front and back side parts 56 and 57 toward the film inside, and the handle portion 27 may be provided in the first front and back side parts 56 and 57 by not forming a through hole or a cutout in the first front and back side parts 56 and 57 but fixing a separate film or the like to the first front and back side parts 56 and 57.
In the embodiment described above, as illustrated in FIG. 2 and the like, the handle portion 27 has been described as being formed in a hole shape (or a slit shape with width) extending through the films 30, 40, and 50 in the film thickness direction. However, a specific aspect of the handle portion 27 is not limited to the above, and the handle portion 27 may be formed as a slit (a slit shape not having a width in a direction orthogonal to an extending direction thereof without material removal) having a notch shape extending through the films 30, 40, and 50 in the film thickness direction. Note that in a case where the handle portion 27 is formed in a hole shape (or a slit shape with width), the visibility of the handle portion 27 can be improved, and the position and the presence of the handle portion 27 can be easily noticed.
In a case where the handle portion 27 is formed in a through hole shape, at least a part of the handle portion 27 may be formed in the first front and back side parts 56 and 57.
In the embodiment described above, the handle portions 27 (the first handle portion 27a and the second handle portion 27b) are formed to straddle the heat-sealed parts 56a and 57a and the non-heat-sealed parts 56b and 57b of the first front and back side parts 56 and 57. However, the entire region of the handle portions 27 (the first handle portion 27a and the second handle portion 27b) may be formed in the heat-sealed parts 56a and 57a or the non-heat-sealed parts 56b and 57b.
In the embodiment described above, the first handle portion 27a and the second handle portion 27b have been described as being provided as the handle portion 27, but only one of the first handle portion 27a and the second handle portion 27b may be provided, or as illustrated in FIGS. 6(a) and 6(b), another handle portion 27 may be provided at a location (the bottom seal 25 in the example illustrated in FIGS. 6(a) and 6(b)) other than the handle portions 27a and 27b.
While preferred embodiments of the disclosure have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the disclosure. The scope of the disclosure, therefore, is to be determined solely by the following claims.
Patent Application
20250206504
