WO2022264722A1

WO2022264722A1 - Pouch

Info

Publication number: WO2022264722A1
Application number: PCT/JP2022/020148
Authority: WO
Inventors: 有馬檀; 一赤司
Original assignee: 株式会社フジシールインターナショナル
Priority date: 2021-06-15
Filing date: 2022-05-13
Publication date: 2022-12-22
Also published as: JPWO2022264722A1

Abstract

Provided is a pouch capable of achieving both an increase in volume and a nearly cylindrical shape in a suspended state.　A pouch 1 is provided with: a packaging bag 100 including a front surface sheet 101, a back surface sheet 102, a bottom surface sheet, and a top surface sheet 104; a suspending band 200 connecting a bottom part of the front surface sheet 101 and a bottom part of the back surface sheet 102 and used to suspend the packaging bag 100 in a posture in which the top surface sheet 104 faces downward; and a spout 300 fixed to the packaging bag 100. The bottom surface sheet has a folded part. The packaging bag 100 has a pair of side seal parts 110, a pair of bottom seal parts 120, and a pair of top seal parts 130. The suspending length of the suspending band 200 is one or more times the distance between a central part in a width direction of an edge part inside the bottom seal part 120 and the folded part.

Description

pouch

This invention relates to pouches.

Conventionally, a pouch that can be hung on a hanging tool is known. For example, Japanese Patent Application Laid-Open No. 9-94285 discloses an infusion bag comprising a pair of side films, a bottom film, a hanging portion, and a mouth portion. The bottom film is joined to the bottom of the side film portions in a folded state. The hanging portion is composed of a bridge piece that connects the bottoms of the side film portions. The mouth portion is sandwiched and fixed between the top portions of the side films.

JP-A-9-94285

In the pouch as described in Japanese Patent Application Laid-Open No. 9-94285, it is desired to increase the capacity and to have a shape close to a cylinder when suspended by a suspension.

An object of the present invention is to provide a pouch that can achieve both an increase in capacity and a nearly cylindrical shape when suspended.

A pouch according to one aspect of the present invention includes a top sheet, a back sheet, a bottom sheet, and a top sheet, and connects a packaging bag capable of containing contents to the bottom of the top sheet and the bottom of the back sheet. a suspension band for suspending the packaging bag with the top sheet facing downward; and the contents downward from the packaging bag in a state in which the packaging bag is suspended by the suspension band. and a spout secured to the packaging bag so as to allow material to flow out, wherein the bottom sheet is configured such that the top sheet and the back sheet are in contact with each other, and the bottom sheet is spouted between the top sheet and the back sheet. The packaging bag has a folded portion formed when the sheet is folded, and the packaging bag has a pair of side sealing portions in which the edges of the top sheet and the edges of the back sheet in the width direction are sealed to each other. a pair of bottom seal portions in which the bottom portion of the topsheet, the bottom portion of the backsheet, and the edge portion of the bottomsheet are sealed to each other; the top portion of the topsheet, the top portion of the backsheet, and the top surface; and a pair of top seal portions that are sealed to each other by the edge portions of the sheet, and the hanging length of the suspension band is the center portion in the width direction of the inner edge portions of the bottom seal portion. It is at least 1 times the distance between the bent portions.

In this pouch, since gussets are formed on both the top and bottom of the packaging bag, the capacity of the packaging bag increases, and when suspended by the suspension band, the top sheet of the packaging bag And the back sheet becomes a shape that opens so as to approach a cylindrical shape. Furthermore, the formation of wrinkles in the packaging bag during suspension of the pouch is suppressed. Specifically, the suspension length of the suspension band is 1 or more times the length of the distance between the central portion in the width direction of the inner edge of the bottom end seal portion and the folded portion of the bottom sheet. As a result, in the state of being suspended by the suspension band, the magnitude of the component of the force acting on the bottom sheet from the base end of the suspension band toward the inside in the depth direction becomes smaller. The crushing of the sheet and the formation of wrinkles on the packaging bag due to this are suppressed.

Further, the bottom seal portion has a bottom center seal portion formed at a center portion in the width direction, and a bottom end seal portion having a shape extending outward in the width direction from the bottom center seal portion. , the suspension band connects the bottom center seal portion on the top sheet side and the bottom center seal portion on the back sheet side, and the inner edge of the bottom center seal portion extends in the width direction having a straight shape, the inner edge of the bottom end seal connects the inner edge of the bottom center seal and the inner edge of the side seal, It is preferable to have a shape that gradually slopes upward toward the outside in the width direction.

Also, the width of the suspension band is preferably not more than 1 time the width of the inner edge of the bottom center seal portion.

In this aspect, the independence of the pouch is ensured. Specifically, the width of the suspension band is less than or equal to the width of the inner edge of the bottom center seal, so that the bottom seal at the boundary between the bottom edge seal and the bottom center seal is Since the suspension band is restrained from acting as a resistance to bending, the bottom seal portion is effectively bent at the boundary between the bottom end seal portion and the bottom central seal portion when the packaging bag is allowed to stand on its own. Therefore, the independence of the pouch is ensured.

Further, the top seal portion has a top center seal portion formed at a center portion in the width direction, and a top end seal portion having a shape extending outward in the width direction from the top center seal portion. The inner edge of the top center seal portion has a shape extending linearly in the width direction, and the inner edge of the top end seal portion is aligned with the inner edge of the top center seal portion. It is connected to the inner edge of the side seal portion, and has a shape that gradually slopes toward the inner side in the depth direction as it goes outward in the width direction, and the inner edge of the top and center seal portion. and the inner edge of the top end seal portion is located just above the boundary between the inner edge of the bottom central seal portion and the inner edge of the bottom end seal portion. preferably.

By doing so, in the suspended state, the top sheet and the back sheet open so as to be closer to a cylindrical shape.

Further, it is preferable that the length of the suspension band is not more than twice the distance between the central portion in the width direction of the inner edge of the bottom seal portion and the bent portion.

In this aspect, the hanging band can be easily accommodated in the space between the bottom sheet and the installation surface, and the hanging band can be suppressed from being caught between the bottom of the packaging bag and the installation surface, so that the pouch can stand on its own. good properties.

In addition, the suspension band has a front side reinforcement portion configured by a base end portion of the front side and a back side reinforcement portion configured by a base end portion of the back side, and the front side reinforcement portion is formed of the top sheet. A surface extension extending downward from the bottom and a bottom extension extending downward from the edge of the bottom sheet are sealed to each other, and the back reinforcement is formed by sealing the back sheet. It is preferable that a rear surface extension extending downward from the bottom of the housing and the bottom surface extension be formed by sealing each other.

In this aspect, since the strength of the base end of the suspension band is increased, breakage of the boundary between the packaging bag and the suspension band is suppressed.

According to the present invention, it is possible to provide a pouch that can achieve both an increase in capacity and a nearly cylindrical shape in a suspended state.

1 is a perspective view schematically showing a state in which a pouch of one embodiment of the present invention is self-supporting; FIG. 2 is a perspective view schematically showing a state in which the pouch shown in FIG. 1 is suspended; FIG. Fig. 3 schematically shows a cross-section of the pouch in a plane perpendicular to the width direction and passing through the suspension band; Fig. 10 is a front view of the pouch in which no contents are contained and the top sheet is folded at the upper ends of the side seal portions; FIG. 5 is a cross-sectional view taken along line VV in FIG. 4; FIG. 6 is a cross-sectional view taken along line VI-VI in FIGS. 4 and 5; FIG. 11 is a side view schematically showing a modified example of connection positions of spouts with respect to the packaging bag; It is a figure for demonstrating the dimension of the pouch of an Example. 2 is a table showing the relationship between H1/H and hangability in Examples and Comparative Examples. 4 is a table showing the relationship between H2/H and autonomy in Examples and Comparative Examples. 4 is a table showing the relationship between W1/W and autonomy in Examples and Comparative Examples.

An embodiment of the present invention will be described with reference to the drawings. In the drawings referred to below, the same or corresponding members are given the same numbers.

FIG. 1 is a perspective view schematically showing a state in which the pouch of one embodiment of the present invention stands on its own. 2 is a perspective view schematically showing a state in which the pouch shown in FIG. 1 is suspended; FIG. This pouch 1 is suitable as a container for fluid contents (liquid, liquid food, etc.).

As shown in FIGS. 1 and 2, the pouch 1 includes a packaging bag 100, a suspension band 200, and a spout 300.

The packaging bag 100 can accommodate contents. As shown in FIGS. 1 to 3, the packaging bag 100 includes a top sheet 101, a back sheet 102, a bottom sheet 103, and a top sheet 104. As shown in FIGS. Each sheet 101-104 is made of a laminate including, for example, polyethylene terephthalate, aluminum, nylon, and polyethylene. At least one of the topsheet 101 and the backsheet 102 is provided with a display portion (not shown) by printing. In this embodiment, a scale is provided as the display section. As shown in FIG. 4, the bottom sheet 103 is formed when the top sheet 101 and the back sheet 102 are in contact with each other and the bottom sheet 103 is folded between the top sheet 101 and the back sheet 102. It has a bent portion 103a.

The packaging bag 100 is formed by sealing the peripheral edges of the sheets 101 to 104 to each other. Specifically, the packaging bag 100 has a pair of side sealing portions 110 , a bottom sealing portion 120 and a top sealing portion 130 . The inner regions of the seal portions 110 to 130 of the packaging bag 100 constitute a containing portion for containing the contents. As a method for sealing between the sheets constituting the packaging bag 100 and for sealing the portion where the spout 300 is fixed to the packaging bag 100, there are various methods such as heat sealing, ultrasonic sealing, high-frequency sealing, and the like, and bonding with an adhesive. A known method can be used.

The side seal portions 110 are formed by sealing the ends of the top sheet 101 and the back sheet 102 in the width direction (horizontal direction in FIG. 4). The side seal portion 110 has a shape extending linearly in the height direction (vertical direction in FIG. 1).

The bottom seal part 120 is formed by sealing the bottom part of the top sheet 101, the bottom part of the back sheet 102, and the edge part of the bottom sheet 103 to each other. As shown in FIG. 4, the bottom seal portion 120 includes a bottom center seal portion 122 and bottom end seal portions 124 .

The bottom central seal portion 122 is formed in the central portion of the bottom seal portion 120 in the width direction. An edge portion 122a on the inner side (upper side in FIG. 4) of the bottom central seal portion 122 has a shape extending linearly in the width direction. An outer edge portion 122b of the bottom central seal portion 122 has a shape extending linearly in the width direction.

The bottom end seal portion 124 has a shape extending outward in the width direction from the bottom central seal portion 122 . Inner edge 124 a of bottom end seal 124 connects inner edge 122 a of bottom center seal 122 and inner edge 110 a of side seal 110 . An inner edge portion 124a of the bottom end seal portion 124 has a shape that gradually slopes upward toward the outside in the width direction. A boundary portion 123a between the inner edge portion 124a of the bottom end seal portion 124 and the inner edge portion 122a of the bottom central seal portion 122 is curved.

The top seal portion 130 is formed by sealing the top portion of the top sheet 101 and the top portion of the back sheet 102 and the edge portion of the top sheet 104 to each other. As shown in FIGS. 2 and 4 , the top seal portion 130 has a top central seal portion 132 and a top end seal portion 134 .

The top center seal portion 132 is formed at the center of the top seal portion 130 in the width direction. An inner edge portion 132a of the top central seal portion 132 has a shape extending linearly in the width direction. An outer edge portion 132b of the top central seal portion 132 has a shape extending linearly in the width direction.

The top end sealing portion 134 has a shape extending outward in the width direction from the top central sealing portion 132 . An inner edge portion 134 a of the top end seal portion 134 connects an inner edge portion 132 a of the top central seal portion 132 and an inner edge portion 110 a of the side seal portion 110 . An inner edge portion 134a of the top seal portion 134 has a shape that gradually slopes inward in the depth direction as it goes outward in the width direction. The depth direction is a direction orthogonal to both the height direction and the width direction, and means the direction connecting the top center seal portion 132 on the front side and the top center seal portion 132 on the back side.

As shown in FIG. 4, a boundary portion 133a between an inner edge portion 132a of the top central seal portion 132 and an inner edge portion 134a of the top end seal portion 134 corresponds to an inner edge portion 122a of the bottom central seal portion 122. and the inner edge 124a of the bottom end sealing portion 124. In other words, the straight line connecting the boundary portion 123 a and the boundary portion 133 a is orthogonal to the inner edge portion 122 a of the bottom center seal portion 122 .

The hanging band 200 is a part for hanging the packaging bag 100 from the hanging tool 10 with the top sheet 104 facing downward, as shown in FIG. The suspension band 200 connects the bottom of the topsheet 101 and the bottom of the backsheet 102 . More specifically, the suspension band 200 connects the bottom center seal portion 122 on the top sheet 101 side and the bottom center seal portion 122 on the back sheet 102 side. The suspension band 200 is preferably connected to the center of the bottom center seal portion 122 in the width direction.

As shown in FIGS. 2 to 5, the hanging band 200 has a space forming portion 210 and a sealing portion 220. As shown in FIG. In addition, in FIG. 4, the seal portion 220 is shaded.

The space forming part 210 forms a space through which the hanging tool 10 can be inserted. The base end portion on the front side of the space forming portion 210 is connected to the bottom central seal portion 122 on the side of the top sheet 101, and the base end portion on the back side of the space forming portion 210 is connected to the bottom center seal portion 122 on the side of the back sheet 102. linked. The space forming portion 210 is provided with an insertion hole 200h for inserting a hook (not shown). Therefore, in addition to suspending the packaging bag 100 by inserting the hanging tool 10 through the space forming portion 210, it is also possible to suspend the packaging bag 100 by inserting hooks through the insertion holes 200h.

　As shown in FIGS. 3 to 5, the space forming part 210 has a front reinforcing part 211 and a back reinforcing part 212. As shown in FIG. The front side reinforcing portion 211 is configured by the front side base end portion of the space forming portion 210 , and the back side reinforcing portion 212 is configured by the back side base end portion of the space forming portion 210 . Each reinforcing

portion

211 , 212 has a thickness greater than the thickness of the portion of the space forming portion 210 other than the reinforcing

portion

211 , 212 . The seal portion 220 is connected to the tip portion of the space forming portion 210 .

As shown in FIGS. 3 to 6, the suspension band 200 includes a front extension 101A extending downward from the bottom of the topsheet 101 and a back extension 102A extending downward from the bottom of the backsheet 102. , and a bottom extension 103A extending downward from the edge of the bottom sheet 103 .

The front side reinforcing portion 211 is formed by sealing the base end portion of the surface extension portion 101A and the bottom surface extension portion 103A to each other. The back side reinforcing portion 212 is formed by sealing the base end portion of the back side extension portion 102A and the bottom side extension portion 103A to each other. In other words, each of the front side reinforcing portion 211 and the back side reinforcing portion 212 has a two-layer structure. Seal portion 220 is formed by heat-sealing the tip of surface extension portion 101A and the tip of back surface extension portion 102A to each other.

The suspension length H1 (see FIG. 4) of the suspension band 200 is the distance H (see FIG. 4) between the central portion 120a and the bent portion 103a in the width direction of the inner edge of the bottom seal portion 120. See) is preferably 1 time or more, more preferably 1.2 times or more. The hanging length H1 of the hanging band 200 means the length H1 of the space forming portion 210, and this length H1 is the length of the bottom center seal portion 122 on the top sheet 101 side and the bottom center of the back sheet 102 side. It means the dimension in the height direction of the space forming part 210 when the sealing part 122 is in contact with each other and the space forming part 210 is flattened (the state shown in FIG. 4). This dimension corresponds to the length from the outer edge 122b of the bottom center seal portion 122 to the inner edge 220a of the seal portion 220 .

In the present embodiment, since the inner edge 122a of the bottom center seal portion 122 has a shape extending linearly in the width direction, the distance H means the distance between the edge 122a and the bent portion 103a. , and the central portion 120a corresponds to the central portion of 122a in the width direction.

The length H2 (see FIG. 4) of the hanging band 200 is 1.3 times or more the distance H between the central portion 120a and the bent portion 103a in the width direction among the inner edges of the bottom seal portion 120. It is preferably 2.3 times or less, more preferably 1.5 times or more and 2 times or less. The length H2 of the suspension band 200 is such that the central bottom seal portion 122 on the top sheet 101 side and the central bottom seal portion 122 on the back sheet 102 side are in contact with each other, and the space forming portion 210 is flattened. It means the dimension in the height direction of the suspension band 200 (in the state shown in FIG. 4). This dimension corresponds to the length from the outer edge 122 b of bottom central seal portion 122 to the outer edge of seal portion 220 .

The width W1 (see FIG. 4) of the suspension band 200 is preferably 1 time or less, more preferably 0.8 times or less, of the width W of the inner edge 122a of the bottom central seal portion 122. . When the width W1 is larger than the width W, when the pouch 1 is suspended, the top sheet 101 and the back sheet 102 try to deform so as to approach a cylindrical shape. acts as resistance. Therefore, there is a concern that wrinkles may be formed in the upper portions of the top sheet 101 and the back sheet 102 in the suspended state.

The width W of the inner edge 122a of the bottom central seal portion 122 is the dimension of the linear portion of the inner edge 122a, that is, the width of the boundary between the inner edge 122a and the curved portion. I mean dimensions.

From the viewpoint of securing the strength of the suspension band 200 or suppressing the rotation of the packaging bag 100 in the suspended state, the width W1 of the suspension band 200 is preferably 0.15 times or more of the width W. Preferably, it is more preferably 0.3 times or more.

The spout 300 is a part for pouring out the contents from the packaging bag 100. Spout 300 has an outlet. The spout 300 is fixed to the packaging bag 100 so that the contents flow downward from the packaging bag 100 when the packaging bag 100 is suspended from the hanging member by the suspension band 200 .

In this embodiment, the spout 300 is fixed to the central portion of the top sheet 104 . However, as shown in FIG. 7, spout 300 may be fixed to the boundary between top sheet 104 and back sheet 102 . Alternatively, spout 300 may be fixed to the boundary between top sheet 104 and top sheet 101 . A cap is attached to the outer periphery of the spout 300 to close the spout.

As described above, in the pouch 1 of the present embodiment, gussets are formed on both the top and bottom portions of the packaging bag 100, so that the capacity of the packaging bag 100 to contain the contents is increased, and the contents can be hung. In some cases, the top sheet 101 and the back sheet 102 of the packaging bag 100 are nearly cylindrical. Therefore, the scale provided on at least one of the top sheet 101 and the back sheet 102 makes it possible to stably read the volume of the contents housed in the pouch 1 .

In the above embodiment, for example, the suspension band 200 may be made of a sheet member separate from the surface extension portion 101A and the back surface extension portion 102A, and the ends thereof may be adhered or welded to the bottom central seal portion 122 . In this case, the suspension band 200 is not formed with the sealing portion 220 . In other words, the hanging band 200 is composed only of the space forming portion 210 . In this case, the suspension length H1 of the suspension band 200 is equal to the length H2 of the suspension band 200. FIG.

Further, the inner edge portion 122a of the bottom center seal portion 122 may be curved so as to protrude downward, and the top portion thereof may be formed in a shape located at the center portion 120a.

Next, an example of the above embodiment and a comparative example thereof will be described. FIG. 8 is a diagram for explaining the dimensions of the pouch 1 of the example.

As shown in FIG. 8, in the example and the comparative example, the width W10 is 120 mm, the height H10 is 143 mm, the bottom gusset H11 is 35 mm, the top gusset D10 is 70 mm, the length H is 29 mm, and the width W is A pouch 1 having a length H3 of 42 mm and a seal portion 220 of 10 mm was used.

The width W10 means the length between the outer edges of the side seal portion 110. Height H10 refers to the length between the outer edge 122b of the bottom central seal portion 122 and the upper end of the side seal portion 110. FIG. The bottom gusset H11 means the length between the bent portion 103a and the outer edge 122b of the bottom central seal portion 122. As shown in FIG. The top gusset D10 means the length between the outer edges 132b of the top central seal portion 132 (the length in the depth direction).

　The pouch 1 was filled with 500 ml of water, and the suspendability and the self-sustainability of the pouch 1 were evaluated by changing the length H1, the length H2, and the width W1. The suspendability means the degree of wrinkles formed on the top sheet 101 and the back sheet 102 in the suspended state.

FIG. 9 is a table showing the relationship between the ratio H1/H of the length H1 of the space forming portion 210 to the distance H and the hanging property. The evaluation criteria for the hanging property in this table are as follows.
AA: Maintains cylindrical shape without forming wrinkles even at large capacity, and has good hanging performance A: Slight wrinkles are formed at large capacity, but generally maintains cylindrical shape and is easy to hang B: Wrinkles are formed with a large capacity, and it may be difficult to maintain the cylindrical shape, but it is possible to hang. C: Wrinkles are formed and the cylindrical shape is not maintained.

As shown in FIG. 9, when the ratio H1/H is 1, wrinkles are formed only slightly, and when the ratio H1/H is 1.2 or more, wrinkles are hardly formed. The properties were good. The reason for this is as follows.

That is, when the pouch 1 is hung, the top sheet 101 and the back sheet 102 are deformed so as to approach a cylindrical shape, and the bottom sheet 103 has a substantially hexagonal shape. When the ratio H1/H is 1, the length connecting the boundary portion 123a on the front side and the boundary portion 123a on the back side and the length twice the length H1 of the space forming portion 210 are substantially equal. is suspended, the length between the boundary portions 123a becomes less than twice the length H1 of the space forming portion 210 due to the weight of water. Therefore, the surface sheet 101 and the back sheet 102 were slightly wrinkled. Further, when the ratio H1/H was 0.8 times, the bottom sheet 103 was crushed, and wrinkles were formed on the top sheet 101 and the back sheet 102 .

FIG. 10 is a table showing the relationship between the ratio H2/H of the length H2 of the hanging band 200 to the distance H and the self-sustainability. The self-reliance evaluation criteria in this table are as follows.
AA: Good independence A: Slight rattling, but good independence B: Rocking, but able to stand on its own C: Poor independence, risk of falling

As shown in FIG. 10, when the ratio H2/H was 1.3 or more and 2.2 or less, the autonomy was good. In sample 4, the sealing portion 220 of the hanging band 200 is sandwiched between the packaging bag 100 and the mounting surface, but the sealing portion 220 is heat-sealed, so the thickness of the sealing portion 220 is less than that of the space forming portion 210. The self-supporting evaluation was A because it was smaller than the thickness of On the other hand, when the ratio H2/H was 1.1 or 4.8, the self-sustainability was poor. The reason for this is as follows.

That is, when the ratio H2/H was 1.1, the length (suspension length) of the space forming part 210 in the suspension band 200 was too short, so that the bottom sheet 103 was crushed and the self-sustainability was deteriorated. Further, when the ratio H2/H is 4.8, the length of the suspension band 200 is too long, so that a part of the suspension band 200 protrudes from the space between the bottom sheet 103 and the installation surface, and the self-sustainability is lost. It got worse.

FIG. 11 is a table showing the relationship between the ratio W1/W of the width W1 of the hanging band 200 to the width W of the inner edge 122a and the self-supporting property. The independence evaluation criteria in this table are the same as the evaluation criteria in the table shown in FIG.

As shown in FIG. 11, when the ratio W1/W was 1 or less, the autonomy was good. On the other hand, when the ratio W1/W was 1.4 or 2.9, rattling was observed when the device was made to stand on its own. Specifically, compared to sample 12 with a ratio W1/W of 1.4, sample 13 with a ratio W1/W of 2.9 had greater rattling. The reason for this is as follows.

That is, when the ratio W1/W is 1 or less, the top sheet 101 and the back sheet 102 try to deform so as to approach a cylindrical shape when the pouch 1 is placed on the installation surface, whereas the suspension band Serving as a resistance at the proximal end of 200 is substantially avoided. Therefore, when the ratio W1/W was 1 or less, the self-sustainability was good.

On the other hand, when the ratio W1/W is 1.4 or 2.9, the top sheet 101 and the back sheet 102 try to deform so as to approach a cylindrical shape when the pouch 1 is placed upright on the installation surface. In contrast, the base end portion of the suspension band 200 acts as resistance, and a portion of the suspension band 200 protrudes from the space between the bottom sheet 103 and the installation surface. Therefore, when the ratio W1/W was 1.4 or 2.9, rattling was observed when the device was made to stand on its own. In particular, the resistance at the proximal end of the suspension band 200 to the attempt to deform the top sheet 101 and the back sheet 102 to approach a cylindrical shape is W1 Sample 13 with /W of 2.9 was larger.

It should be noted that the embodiments and examples disclosed this time are illustrative in all respects and should not be considered restrictive. The scope of the present invention is indicated by the scope of the claims rather than the description of the above-described embodiments and examples, and includes all modifications within the meaning and scope equivalent to the scope of the claims.

1 Pouch, 10 Hanging tool, 100 Packaging bag, 101 Top sheet, 101A Surface extension, 102 Back sheet, 102A Back extension, 103 Bottom sheet, 103a Folded part, 103A Bottom extension, 104 Top sheet, 110 Side seal part 120 Bottom seal part 122 Bottom center seal part 124 Bottom end seal part 130 Top seal part 132 Top center seal part 134 Top end seal part 200 Suspension band 200h Insertion hole , 210 space forming portion, 211 front side reinforcing portion, 212 back side reinforcing portion, 220 sealing portion.

Claims

a packaging bag including a top sheet, a back sheet, a bottom sheet and a top sheet and capable of containing contents;
a suspension band connecting the bottom of the top sheet and the bottom of the back sheet and for suspending the packaging bag with the top sheet facing downward;
a spout fixed to the packaging bag so that the contents flow downward from the packaging bag when the packaging bag is suspended by the suspension band;
the bottom sheet has a folded portion formed when the top sheet and the back sheet are in contact with each other and the bottom sheet is folded between the top sheet and the back sheet;
The packaging bag is
a pair of side seal portions in which the edge portions of the top sheet and the edge portions of the back sheet in the width direction are sealed to each other;
a pair of bottom sealing portions in which the bottom of the top sheet, the bottom of the back sheet, and the edge of the bottom sheet are sealed to each other;
a pair of top sealing portions in which the top of the top sheet, the top of the back sheet, and the edge of the top sheet are sealed to each other;
The pouch, wherein the hanging length of the hanging band is at least 1 time the distance between the central portion in the width direction of the inner edge of the bottom seal portion and the bent portion.
The bottom seal portion is
a bottom center seal portion formed in the center portion in the width direction;
a bottom end seal portion having a shape extending outward in the width direction from the bottom central seal portion;
The suspension band connects the bottom center seal portion on the top sheet side and the bottom center seal portion on the back sheet side,
The inner edge of the bottom center seal portion has a shape extending linearly in the width direction,
The inner edge portion of the bottom end seal portion connects the inner edge portion of the bottom center seal portion and the inner edge portion of the side seal portion, and gradually increases outward in the width direction. 2. The pouch of claim 1, having an upwardly sloping shape.
The pouch according to claim 2, wherein the width of the hanging band is less than or equal to the width of the inner edge of the bottom center seal portion.
The top sealing portion is
a top center seal portion formed in the center portion in the width direction;
a top end seal portion having a shape extending outward in the width direction from the top center seal portion;
The inner edge of the top central seal portion has a shape extending linearly in the width direction,
The inner edge portion of the top end seal portion connects the inner edge portion of the top central seal portion and the inner edge portion of the side seal portion, and gradually expands outward in the width direction. Having a shape that slopes inward in the depth direction,
The boundary between the inner edge of the top center seal portion and the inner edge of the top end seal portion is the inner edge of the bottom center seal portion and the inner edge of the bottom end seal portion. 4. A pouch according to claim 2 or 3, located just above the boundary with the .
5. The length of the suspension band is no more than twice the distance between the central portion in the width direction of the inner edge of the bottom seal portion and the bent portion. The pouch described in .