WO2015087825A1 - Pouch container and method for manufacturing pouch container - Google Patents

Abstract

A pouch container (10) as one example of an embodiment is equipped with wall-surface sheets (11, 12) and a grip part (25), said wall-surface sheets constituting at least a first surface and a second surface that face each other. The grip part comprises an interior sheet (26) that is joined to the inner surface of the first surface and/or the second surface and openings (29) that are formed on the wall-surface sheet to which the interior sheet is joined at positions where the wall-surface sheet overlaps with the interior sheet.

Description

Pouch container and method for manufacturing pouch container

The present invention relates to a pouch container and a method for manufacturing the pouch container.

Pouch containers are widely used mainly for refill containers such as various toiletry products because they have excellent features such as light weight and easy disposal. For example, a pouch container used for a refill container is required to be able to stably hold the container when the contents are refilled, and the needs are particularly increased as the container capacity increases.

In view of such a situation, a pouch container with improved container grip has been proposed (see, for example, Patent Documents 1 and 2). The pouch containers disclosed in Patent Documents 1 and 2 are provided with a handle hole into which a hand can be inserted into a heat seal portion of a container formed by bonding films.

JP 2004-359258 A JP 2004-359259 A

However, in the pouch containers of Patent Documents 1 and 2, since it is necessary to form a large seal portion in order to provide a handle hole, it is necessary to reduce the container capacity or to increase the outer shape of the container in order to ensure the container capacity. There is a problem. Further, the conventional pouch containers including the pouch containers of Patent Documents 1 and 2 still have room for improvement with respect to gripping properties.

A pouch container according to an aspect of the present invention includes a wall sheet that forms at least a first surface and a second surface that face each other, and a pouch container that includes a grip portion, wherein the grip portion includes the first surface and the first surface. It has an interior sheet joined to at least one inner surface of two sides, and an opening formed in a position which overlaps with the interior sheet among the wall sheet to which the interior sheet was joined.

The manufacturing method of the pouch container which is one mode of the present invention includes a first sheet and a second sheet facing the first sheet, an upper end of the first sheet and an upper end of the second sheet. A method for manufacturing a pouch container, comprising: a top gusset sheet to be connected; a bottom gusset sheet for connecting the lower end of the first side sheet and the lower end of the second side sheet; and a spout that communicates the inside and outside of the pouch container. An opening forming step of forming an opening in the second surface sheet, a first bonding step of bonding an interior sheet to a position overlapping the opening, of the inner surface of the second surface sheet, and the first And a second joining step for joining the sheets constituting the pouch container to each other after the joining step.

According to one aspect of the present invention, it is possible to provide a pouch container including a grip portion having a configuration that does not affect the container capacity. In addition, the pouch container according to the present invention can be stably gripped using the gripping portion, and can be satisfactorily refilled even when applied to a refill container having a large container capacity. The pouch container according to the present invention can be easily manufactured by an existing bag making process.

It is a front view of the pouch container which is 1st Embodiment. It is AA sectional view taken on the line of FIG. It is BB sectional drawing of FIG. It is a longitudinal cross-sectional view of the pouch container which is 1st Embodiment, Comprising: It is a figure which shows the state with which the content was filled. It is a figure for demonstrating the manufacturing method of the pouch container which is 1st Embodiment. It is a figure which shows the holding | grip form of the pouch container which is 1st Embodiment. It is a front view of the pouch container which is a modification of 1st Embodiment, Comprising: It is a figure which shows the state which folded the tongue piece inside. It is a figure which shows a part of CC line cross section of FIG. It is an enlarged view of the upper end part of an interior sheet. It is a figure which shows an example of the process of the edge part of an interior sheet. It is a figure which shows another example of the process of the edge part of an interior sheet. It is a figure which shows another example of the process of the edge part of an interior sheet. It is a front view of the pouch container which is the other modification of 1st Embodiment. It is a front view of the pouch container which is the other modification of 1st Embodiment. It is DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is a longitudinal cross-sectional view of the pouch container of FIG. 14, Comprising: It is a figure which shows the state with which the content was filled. It is a front view of the pouch container of FIG. 14, Comprising: It is a figure which shows the state which folded the tongue piece inside. It is FF sectional view taken on the line of FIG. It is a figure for demonstrating the manufacturing method of the pouch container of FIG. It is a figure which shows the holding | grip form of the pouch container of FIG. It is the figure which looked at the holding | grip form of FIG. 21 from the back surface sheet side. It is a figure which shows the other holding | grip form of the pouch container of FIG. It is a front view of the pouch container which is the other modification of 1st Embodiment. It is a front view of the pouch container which is the other modification of 1st Embodiment. It is a front view of the pouch container which is the other modification of 1st Embodiment. It is a perspective view of the pouch container which is 2nd Embodiment, Comprising: It is a figure which shows the state with which the content was filled. It is a disassembled perspective view of the pouch container which is 2nd Embodiment. It is a longitudinal cross-sectional view of the pouch container which is 2nd Embodiment. It is a figure which shows a mode that the pouch container which is 2nd Embodiment was inclined. It is a figure which shows the flow of manufacture of the pouch container which is 2nd Embodiment. It is a figure which shows the flow of manufacture of the pouch container which is 2nd Embodiment. It is a perspective view of the pouch container which is a modification of 2nd Embodiment, Comprising: It is a figure which shows the state with which the content was filled. It is the GG sectional view taken on the line of FIG. It is a figure which shows an example of the conventional pouch container. It is a figure which shows another example of the conventional pouch container.

An example of an embodiment will be described in detail below with reference to the drawings.
The drawings referred to in the embodiments are schematically described, and the dimensional ratios of the components drawn in the drawings may be different from the actual products. Specific dimensional ratios and the like should be determined in consideration of the following description.

In the embodiment, the portion where the spout is provided is the “upper part” of the container. Also, the direction in which the sheets are laminated is the “front and back direction” of the container, and the vertical direction (also referred to as the vertical direction) and the direction orthogonal to the front and back direction are the “lateral direction” of the container. Hereinafter, the vertical direction, the front / back direction, and the horizontal direction may be simply referred to.

In the embodiment, the contents filled in the pouch container will be described as a liquid material intended for shampoo, liquid detergent, and the like. However, the content is not limited to this, and may be, for example, a solid such as a granular material, a jelly-like, or a gel-like semi-solid. Moreover, in embodiment, the stoppers 20 and 54 are illustrated as a spout of content. However, the spout is not limited to this. For example, the spout may be configured using a member other than the plugs 20 and 54, or may be a flow path formed by a heat seal portion.

In the embodiment, a standing pouch provided with at least a pair of wall surfaces constituting a first surface and a second surface facing each other and a bottom gusset sheet is exemplified, but a flat pouch without a bottom gusset sheet, Other pouches such as a side gusset pouch with a side gusset sheet, a so-called one seam pouch in which the first side and the second side are configured using one sheet, a pouch with both a bottom gusset sheet and a side gusset sheet, etc. You may apply the structure of this invention to a form.

FIGS. 1 to 26 are diagrams for explaining the first embodiment, and FIGS. 27 to 34 are diagrams for explaining the second embodiment.

<First Embodiment>
The pouch container 10 according to the first embodiment will be described in detail with reference to FIGS. FIG. 1 is a front view showing a pouch container 10. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is a longitudinal sectional view of the pouch container 10 in a state where the contents are filled. In the first embodiment, the first surface of the pouch container 10 will be described as the front surface and the second surface will be described as the back surface for convenience. The pouch container 10 includes a surface sheet 11 that is a first surface sheet and a back surface sheet 12 that is a second surface sheet as wall surface sheets constituting a first surface (front surface) and a second surface (back surface) that face each other.

As shown in FIGS. 1 to 4, the pouch container 10 connects the top sheet 11, the back sheet 12 that forms a cylindrical body with the top sheet 11, and the bottom end of the top sheet 11 and the bottom end of the back sheet 12. A standing pouch comprising a bottom gusset sheet 13. The surface sheet 11 and the back surface sheet 12 (hereinafter, these may be collectively referred to as “front and back surface sheets”) are wall surface sheets that respectively constitute the front surface portion and the back surface portion of the wall surface portion of the container. The bottom gusset sheet 13 is a wall surface sheet that is inserted by being folded between a front surface portion and a back surface portion and constitutes a bottom gusset (gusset). The bottom gusset sheet 13 is mountain-folded upward and is developed by filling the contents. A container internal space surrounded by each wall sheet is a filling portion 14 filled with contents.

In the pouch container 10, the bottom gusset sheet 13 is inserted between the front and back sheets, and in this state, a seal portion that joins the end portions of the sheets is formed. In the present embodiment, an upper end seal portion 15, a bottom seal portion 16, and a side seal portion 17 are formed as the seal portion. The front and back sheets have a substantially rectangular shape in front view extending longer in the vertical direction than in the horizontal direction (hereinafter, the horizontal direction may be referred to as the width direction and the width direction length may be simply referred to as the width). The bottom gusset sheet 13 is provided, for example, in the range of about 1/6 to 1/4 of the vertical length of the sheet from the lower end of the front and back sheets.

The pouch container 10 includes a spout 18 composed of a substantially cylindrical spout 18 made of a hard resin and a cap 19 screwed into the spout 18 as a spout that communicates the inside and outside of the container. The spout 18 is inserted between the front and back sheets, and is joined to the front and back sheets by the upper end seal portion 15. The spout 18 is attached to the upper end of the container main body (portion other than the spigot 20) with the axial direction thereof along the vertical direction.

The upper end seal portion 15 is formed by joining the upper ends of the front and back sheets. In the present embodiment, as described above, the upper end seal portion 15 is formed with the attachment portion of the spout 18 formed in a substantially boat shape between the front and back sheets. That is, the spout 18 is provided in the upper end seal portion 15 that is a joint portion between the upper end of the top sheet 11 and the upper end of the back sheet 12.

The bottom seal portion 16 is a seal portion formed at the end of the bottom gusset sheet 13 and joins the bottom gusset sheet 13 and the front and back sheets. The bottom seal portion 16 is formed such that when the contents are filled, the front and back sheets are separated from each other and the bottom gusset sheet 13 is developed. The bottom gusset sheet 13 is preferably formed with notches 21 at both lateral ends. Thereby, the surface sheet 11 and the back surface sheet 12 are directly joined, and the stable self-supporting property is obtained. The side seal portion 17 is formed by joining the top sheet 11 and the back sheet 12 at both ends in the container width direction. A part of the side seal portion 17 is formed in a state where both end portions in the width direction of an interior sheet 26 to be described later are sandwiched between front and back sheets.

The pouch container 10 includes a grip portion 25. The grip portion 25 is an opening formed at a position overlapping the interior sheet 26 among the interior sheet 26 joined to at least one inner surface of the front surface portion and the back surface portion of the container body and the wall surface sheet joined to the interior sheet 26. 29. The opening 29 functions as a finger insertion opening. The opening 29 may be used when the container is hooked on a hook or the like. In the pouch container 10, the interior sheet 26 is joined only to the inner surface of the surface sheet 11 constituting the surface of the container, and an opening 29 is formed in the surface sheet 11 at a position overlapping the interior sheet 26.

The gripping portion 25 is preferably provided on the container lower side than the cap 20 even when the cap 20 is attached to other than the upper end of the container body. The grip portion 25 has, for example, a substantially rectangular shape in front view that extends longer in the width direction than in the vertical direction. Although the number of the holding parts 25 may be two, in this embodiment, one is provided on the surface part side, and the interior sheet 26 is joined only to the inner surface of the surface sheet 11. That is, the opening 29 that is an opening into which a finger can be inserted is formed in the topsheet 11. In addition, two interior sheets may be joined to the inner surfaces of the front and back sheets, respectively, and an opening may be formed on one of the front and back sheets to provide a grip portion on one side.

Each sheet constituting the pouch container 10 is usually made of a resin film. The resin film constituting the sheet is required to have basic performance as a packaging body such as impact resistance, wear resistance, and heat resistance. Moreover, since each said seal | sticker part is normally formed by a heat seal, the heat seal property is also requested | required of a sheet | seat. As the sheet, a multilayer sheet having a base film layer and a sealant layer that imparts heat sealability is suitable, and when high gas barrier properties are required, a gas barrier is provided between the base film layer and the sealant layer. It is preferred to provide a layer.

In addition, you may provide barrier property to the base film layer itself. In this case, a multilayer sheet having a barrier layer and a sealant layer is obtained using the barrier layer as a base film layer. In addition, when providing heat sealability on both sides of the sheet, a single-layer film that forms a sealant layer described later may be used, or in the case of a multilayer sheet, whether two layers of the same or different sealant layers are used. (At this time, one layer of the sealant layer is formally used as the base film layer), or a sheet having a sealant layer on both sides of the base film layer may be used.

Here, the constituent materials of the base film layer, the sealant layer, and the gas barrier layer are exemplified. In addition, lamination | stacking of these each layer can be performed by the conventional lamination method, for example, the dry lamination by an adhesive agent, the heat lamination which adhere | attaches with a heat | fever by pinching | interposing a heat bonding layer.

As the film constituting the base film layer, polyester (polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), polycarbonate (PC), etc.), polyolefin (polyethylene (PE), polypropylene ( PP) etc.), polyamide (nylon-6, nylon-66 etc.), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), and A stretched or unstretched film of one layer or two or more layers composed of polyethersulfone (PES) or the like can be exemplified.

The film constituting the sealant layer includes low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene-propylene copolymer (EP), unstretched polypropylene (CPP), biaxially stretched nylon (ON) , Ethylene-olefin copolymer, ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA), ethylene-vinyl acetate copolymer (EVA), etc. A stretched or unstretched film can be exemplified.

The gas barrier layer may be a metal thin film such as aluminum, a resin film such as vinylidene chloride (PVDC) or ethylene-vinyl alcohol copolymer (EVOH), or any synthetic resin film (for example, a base film layer). ), And a film obtained by vapor-depositing (or sputtering) an inorganic oxide such as aluminum, aluminum oxide or silica.

The sheet can be provided with a print layer (not shown) for displaying the product name of the contents, product description such as raw materials and usage precautions, and various other designs. For example, the printing layer can be formed on the inner surface of the base film layer by a known method such as gravure printing.

Hereinafter, the configuration of the grip portion 25 will be described in more detail.

The grip portion 25 is configured by, for example, an interior sheet 26 joined to the inner surface of the topsheet 11 and an opening 29 formed in the topsheet 11. The grip part 25 has an internal space 27 that is not in communication with the filling part 14 and is independent of the filling part 14. It is preferable that only the periphery of the interior sheet 26 is joined to the surface sheet 11 by the edge seal portion 28, and the central portion thereof is not joined to the surface sheet 11. As a result, an internal space 27 into which fingers can be inserted independently from the filling portion 14 is formed, and a bag-like gripping portion 25 in which a portion other than the opening 29 is closed is provided. The user inserts a finger into the space (internal space 27) between the top sheet 11 and the interior sheet 26 from the opening 29, for example, and grasps a part of the top sheet 11 (for example, a band 31 described later), The pouch container 10 can be gripped. The grip portion 25 is provided on the lower side of the container with respect to the cap 20, and is provided, for example, at substantially the same height as the center of gravity of the pouch container 10.

The interior sheet 26 is preferably provided over the entire lateral length of the pouch container 10, that is, over the entire width of the topsheet 11. The size of the interior sheet 26 is not particularly limited as long as an internal space 27 into which a finger can be inserted between the top sheet 11 and the interior sheet 26 can be formed. It is preferable to be provided over the entire width. That is, the width of the front and back sheets and the width of the interior sheet 26 are the same. By making the width of each sheet the same, the pouch container 10 can be easily and inexpensively manufactured by an existing bag making process using a long sheet. Moreover, the pouch container 10 can be manufactured using the general front and back sheet | seat which has a sealant layer on the single side | surface by inserting the interior sheet 26 between front and back sheets, and providing the holding part 25. FIG.

The opening 29 is preferably provided by forming a cut line 30 in the top sheet 11. The cut line 30 is formed at a position overlapping the interior sheet 26 in the top sheet 11. Instead of the cut line 30, a perforation line (a line including a cut portion and a non-cut portion) or a half cut line may be formed. In this case, at the time of use, the front and back sheets can be cut along perforations and the like to form openings.

In the example shown in FIG. 1, two openings 29 are formed in the top sheet 11. Each opening 29 is formed on one end side in the width direction and on the other end side in the width direction with an annular cut line 30 formed in, for example, a substantially rectangular shape or a substantially oval shape when viewed from the front, across the center portion in the width direction of the grip portion 25. Provided. Each opening 29 is a long hole extending in the vertical direction, and the length in the vertical direction is shorter toward the center in the width direction of the grip portion 25. Between each opening 29, the belt | band | zone part 31 extended long in the up-down direction is formed. The band portion 31 that is a portion sandwiched between the openings 29 becomes a portion that is gripped by the user when the pouch container 10 is gripped using the grip portion 25.

Next, an example of a method for manufacturing the pouch container 10 will be described with reference to FIG.

FIG. 5 shows a process of laminating the long body of each sheet and forming each seal part in the manufacturing process of the pouch container 10. In this manufacturing process, long sheets of the top sheet 11, the back sheet 12, the bottom gusset sheet 13, and the interior sheet 26 (hereinafter referred to as “ long bodies 11z, 12z, 13z, and 26z”) are prepared and are mutually connected. Laminate. For the long body 26z, it is preferable to use a double-sided heat-sealable sheet. In the step of laminating each long body, the long body 26z is inserted between the long bodies 11z and 12z that are overlapped with each other. The long body 26z is inserted above the long body 13z and below the portion to which the plug 20 is attached.

In the laminating process of the long bodies, the long bodies 11z and 12z are laminated so that the sealant layers face each other, and the long body 13z faces upward so that the sealant layer faces the long bodies 11z and 12z. Mountain folds. In addition, before laminating each sheet, it is preferable to form a cut line 30 for providing a hole to be the notch 21 and an opening 29 of the grip portion 25. In addition, it is preferable to laminate the long body 26z and the long body 11z with other long bodies after heat-sealing and joining them.

Each sealing part is formed in each long body which passed through a lamination process at a heat seal process. In the heat sealing step, for example, each sealing portion is formed by heat-sealing the end portion of each elongated body, leaving the portion that becomes the upper end portion of the container body. Subsequently, using a die cut roll or the like, for example, the long body is cut along the planned cutting line 22 and divided into individual container sizes. Finally, after filling the filling portion 14 from the upper end of the container body, the upper end seal portion 15 is formed with the attachment portion of the spout 18 of the spigot 20 sandwiched between the upper ends of the front and back sheets, and the pouch container 10 is formed. Is obtained.

FIG. 6 shows a state in which the pouch container 10 is gripped using the grip portion 25. For example, when taking out the contents from the pouch container 10, the cap 19 is removed from the spout 18, the container is held with one hand, and the spout 18 is tilted vertically downward. At this time, the pouch container 10 can be firmly grasped by inserting a finger into the internal space 27 from the two openings 29 and grasping the band portion 31 that is sandwiched between the openings 29. For example, the band part 31 can be grasped from both sides in the width direction by inserting four fingers of an index finger, a middle finger, a ring finger, and a little finger from one opening 29 and inserting a thumb from the other opening 29.

As described above, the pouch container 10 is stably held by the holding portion 25. For this reason, even if it is a case where the pouch container 10 is applied to the refill container with a large container capacity | capacitance, favorable refilling operation is possible. Further, the grip portion 25 of the pouch container 10 has a configuration that does not affect the container capacity. In other words, the provision of the grip portion 25 does not reduce the container capacity, and it is not necessary to increase the outer shape of the container in order to ensure the container capacity.

In the pouch container 10u illustrated in FIG. 7, an opening 29u formed by a cut line 30u with ends and a tongue piece 32 which is the remaining part are provided in the gripping portion 25u. 7 is a front view of the pouch container 10u (a state in which the tongue piece 32 is folded inward), and FIG. 8 is a view showing a part of the CC line cross section of FIG. The holding portion 25u is provided with two openings 29u extending long in the vertical direction, and the interval between the openings 29u is slightly wider than that of the pouch container 10. Therefore, the band portion 31u, which is a portion sandwiched between the openings 29u, is also formed wider than in the case of the pouch container 10. The grip portion 25u has a tongue piece 32 that is partly connected to the topsheet 11u at the edge of the opening 29u and the remaining portion is separated from the topsheet 11u. The tongue piece 32 is folded into, for example, the internal space 27 when the grip portion 25u is used. When the tongue piece 32 is folded into the internal space 27A, a substantially rectangular opening 29u extending in the vertical direction opens. In this case, a curved surface 32 a is formed by the tongue piece 32 at the edge of the opening 29 u. Due to the presence of the curved surface 32a, the biting of the edge of the opening 29u into the finger is alleviated and the gripping property is improved.

FIG. 9 is an enlarged view of the upper end portion of the interior sheet 26. In the form shown in FIG. 9, the upper and lower end surfaces of the interior sheet 26 come into contact with the contents (liquid) filled in the pouch container 10. The problem in this case will be described with reference to FIG. The interior sheet 26 is preferably provided with heat sealability on both sides for the convenience of production, and a barrier layer is also required when high light shielding properties, gas barrier properties, etc. are required. As a result, the interior sheet 26 has a three-layer structure in which, for example, sealant layers L2 and L3 are disposed on both sides of the barrier layer L1.

When the end surface 26a of the interior sheet 26 having a three-layer structure comes into contact with the contents (for example, liquid), the contents may enter between the layers, and delamination may occur. The barrier layer often contains an inorganic oxide such as aluminum, aluminum oxide, or silica. And depending on the kind of content, such an inorganic oxide may contact and change in quality. In this case, there is a possibility that problems such as a light shielding property, a decrease in gas barrier property, and a deterioration of the content itself may be caused.

Therefore, when the interior sheet 26 is smaller than the top sheet 11, that is, when there is a possibility that the upper and lower end surfaces of the interior sheet 26 are in contact with the contents, the end surface 26a of the interior sheet 26 is placed on the pouch container 10. It is preferable to isolate from the internal space (filling part 14). Various methods for separating the end surface 26a of the interior sheet 26 are conceivable. For example, as shown in FIG. 10, a tape 33 (for example, a single-layer tape having only a sealant layer) that allows liquid contact is used. In addition, the inner sheet 26 may be pasted from the edge portion to the inner surface of the top sheet 11. In this case, since the end surface 26a of the interior sheet 26 is covered with the tape 33, contact of the contents with the end surface 26a is prevented.

Alternatively, as shown in FIG. 11, the pair of sealant layers L2 and L3 sandwiching the barrier layer L1 may be slightly longer than the barrier layer L1 and protrude outward from the end face of the barrier layer L1. In this case, when the peripheral edge of the interior sheet 26 is heated and heat-sealed, the melted sealant layers L2 and L3 flow out to the end surface of the barrier layer L1, and cover the end surface of the barrier layer L1. Even when the sealant layers L2 and L3 are not elongated, if the marginal edge of the interior sheet 26 is heated at the time of heat sealing, a part of the dissolved sealant layers L2 and L3 flows out to the end face of the barrier layer L1. The end surface of the barrier layer L1 is covered. In addition, as shown in FIG. 12, the inner sheet 26 and the surface sheet 11 may be joined after the periphery of the interior sheet 26 is bent toward the outside (the surface sheet 11 side).

In the pouch container 10v illustrated in FIG. 13 (front view), the width of the interior sheet 26v is shorter than the width of the top sheet 11. The interior sheet 26v is provided only in the vicinity of the portion where the opening 29 and the band part 31 of the topsheet 11 are provided, and the internal space of the gripping part 25v is smaller than that of the pouch container 10. Yes. Two interior sheets separated from each other may be joined to the peripheral edges of the two openings 29.

The pouch container 10w illustrated in FIG. 14 (front view) is different from the pouch container 10 in that the corner located at the upper part of the front and back sheets has an oblique side portion 23 formed obliquely with respect to the vertical direction and the width direction. . The pouch container 10w is different from the pouch container 10 in that it includes two gripping portions 25A and 25B. Hereinafter, the configuration of the pouch container 10w will be described in detail with reference to FIGS. FIG. 14 is a front view showing the pouch container 10w. 15 is a sectional view taken along the line DD in FIG. 14, and FIG. 16 is a sectional view taken along the line EE in FIG. FIG. 17 is a vertical cross-sectional view of the pouch container 10w in a state where the contents are filled.

As shown in FIG. 14, the oblique side portion 23 is formed, for example, in the range of about 1/3 to 1/2 of the width of the sheet from one end in the width direction of the front and back sheets. The spout 18 of the spigot 20 is attached to the oblique side portion 23. The spout 18 is inserted between the front and back sheets, and is joined to the front and back sheets by the upper end seal portion 15w. That is, the upper end seal portion 15w formed on the oblique side portion 23 is formed with the spout 18 sandwiched between the front and back sheets. In the following, one end in the width direction of the container body close to the stopper 20 is referred to as a “first end”, and the other end in the width direction opposite to the first end is referred to as a “second end”.

As shown in FIGS. 14 to 17, the pouch container 10w includes two gripping portions 25A and 25B. Interior sheets 26A and 26B are joined to the inner surfaces of the top sheet 11w and the back sheet 12w, respectively. The grip portions 25A and 25B are configured by providing openings 29A and 29B, which are openings into which fingers can be inserted, at positions overlapping the interior sheets 26A and 26B in the top sheet 11w and the back sheet 12w, respectively.

It is preferable that the grip portions 25A and 25B are provided at positions facing each other and overlap in the front and back direction. That is, the interior sheets 26A and 26B are joined to positions facing each other on the inner surfaces of the front and back sheets. Thereby, the gripping property is improved and the productivity is improved. The grip portions 25A and 25B have a substantially rectangular shape in front view extending in the width direction longer than the vertical direction, and have the same shape and the same dimensions. Hereinafter, the contents common to the gripping portions 25A and 25B will be described using the gripping portion 25A as an example.

As in the case of the pouch container 10, the grip portion 25 </ b> A has an internal space 27 </ b> A that is independent from the filling portion 14, and is formed in a bag shape in which portions other than the opening 29 </ b> A are closed. Thereby, it becomes difficult to remove the finger from the gripping portion 25A, and an excellent gripping property is obtained. The internal space 27A preferably has a dimension that can accommodate a plurality of fingers, for example, the index finger, middle finger, ring finger, and little finger of the right hand. In order to enable stable holding of the pouch container 10w, it is preferable that the dimension of the internal space 27A is set to such an extent that it can be completely accommodated from the tip of the finger to the root. In addition, the interior sheet 26A constituting the grip portion 25A is preferably provided over the entire width of the front and back sheets from the viewpoint of productivity and the like.

The opening 29A is an opening that allows a finger to be inserted into the internal space 27A from the width direction, and is preferably provided closer to the second end than the center in the width direction of the grip portion 25A. The opening 29B is preferably provided just behind the opening 29A. The opening 29A is designed such that a finger is inserted from the second end side, and the finger inserted from the opening 29A is accommodated in the internal space 27A with the fingertip facing the first end side. The internal space 27A is a space extending long in the width direction in order to facilitate the accommodation of the finger. The opening 29A is preferably provided by forming a cut line 30A in the topsheet 11w. The cut line 30A is formed at a position overlapping the interior sheet 26A of the topsheet 11w. The cut line 30B is preferably formed at a position that overlaps the interior sheet 26B of the back sheet 12w, and overlaps the cut line 30A in the front and back direction.

The grip portion 25A preferably includes tongue pieces 34A and 35A formed at the edge of the opening 29A. A cut line 30A illustrated in FIG. 14 includes a straight line portion L formed in a straight line along the vertical direction, and a curved line portion R formed in a substantially elliptic shape connected to the upper end portion and the lower end portion of the straight line portion L, respectively. Have. The opening 29A provided by the cut line 30A has an upper end portion and a lower end portion opened substantially in an elliptical shape so that the interior sheet 26A is exposed, and an intermediate portion is closed by tongue pieces 34A and 35A. That is, since most of the openings 29A and 29B are closed by the tongue pieces, when a light-shielding sheet is used for the front and back sheets, the contents are not easily seen even if the interior sheets 26A and 26B are transparent. For example, the appearance of the container is improved. Further, when it is desirable to shield the contents, it is preferable because light does not easily hit the filling portion 14.

If it is desired to further shield the contents, a light-shielding sheet may be used for the interior sheets 26A and 26B, or an opening may be formed only by the straight line portion L. However, in order to make it easy to confirm the opening 29A and to facilitate the insertion of a finger, it is preferable that a part of the opening 29A is opened. Instead of the cut line 30A, a perforation line or a half cut line may be formed. In this case, at the time of use, the front and back sheets can be cut along perforations and the like to form openings.

As shown in FIGS. 18 and 19, the tongue pieces 34A and 35A are folded into, for example, the internal space 27A when the grip portion 25A is used. When the tongue pieces 34A and 35A are folded into the internal space 27A, a substantially rectangular opening 29A that extends long in the vertical direction opens. In particular, in the gripping form illustrated in FIG. 23 to be described later, since the finger does not touch the end of the topsheet 11w by folding the tongue piece 35A inward, the finger does not hurt even if a large load is applied to the finger, The gripping property is improved.

Next, an example of a method for manufacturing the pouch container 10w will be described with reference to FIG. FIG. 20 shows the process of laminating the long body of each sheet and forming each seal part in the manufacturing process of the pouch container 10w, as in FIG. In this manufacturing process, the long sheets of the top sheet 11w, the back sheet 12w, the bottom gusset sheet 13, and the interior sheets 26A and 26B (hereinafter referred to as “long bodies 11wz, 12wz, 13z, 26Az, and 26Bz”), respectively. Prepare and stack together. It is preferable to use a double-sided heat-sealable sheet for the long bodies 26Az and 26Bz.

In the laminating process of the long bodies, the long bodies 13z, 26Az, and 26Bz are inserted between the long bodies 11wz and 12wz that are overlapped with each other. Further, the long bodies 26Az and 26Bz are inserted in a state of being overlapped with each other below the long body 13z and below the portion to which the plug 20 is attached. Thus, the grip portions 25A and 25B are provided at positions facing each other, that is, at positions overlapping in the front and back direction.

In the laminating process of the long bodies, the long bodies 11wz and 12wz are laminated so that the respective sealant layers face each other, and the long body 13z faces upward so that the sealant layer faces the long bodies 11wz and 12wz. Mountain folds. In addition, before laminating the sheets, it is preferable to form the cut lines 30A and 30B for providing the holes to be the notches 21 and the openings 29A and 29B, respectively. Further, it is preferable that the long body 26Az and the long body 11wz and the long body 26Bz and the long pair 12wz are joined by heat-sealing first, and then the long body 13z is laminated. is there.

Each sealing part is formed in each long body which passed through a lamination process at a heat seal process. In the heat sealing step, for example, each sealing portion is formed by heat-sealing the edge of each elongated body, leaving the upper end portion. Subsequently, using a die cut roll or the like, the long body is cut, for example, along the planned cutting line 22w, and is divided into individual container sizes and the oblique sides 23 are formed. Finally, the plug 20 is attached to the hypotenuse 23 to obtain the pouch container 10w. Note that a part of the upper end seal portion 15w is preferably formed after filling the contents.

In the above production example, an example using the long bodies 26Az and 26Bz has been described, but a long gusset sheet may be used instead of the long bodies 26Az and 26Bz. In this case, the long gusset sheet is supplied to the bag making machine, and after heat sealing to the wall sheet or after heat sealing, the gusset sheet is cut along the crease line, and the gripping portions 25A and 25B are separated. May be.

Next, the effects of the pouch container 10w will be described in detail with reference to FIGS. 21 and 22 show how the pouch container 10w is gripped using the gripping portions 25A and 25B. For example, when taking out the contents from the pouch container 10w, the cap 19 is removed from the spout 18, the container is held with one hand (hereinafter referred to as the right hand), and the spout 18 is tilted vertically downward. At this time, for example, the index finger, the middle finger, the ring finger, and the little finger are inserted from the second end side into the internal space 27A of the grip portion 25A, and the thumb is also inserted into the internal space 27B of the grip portion 25B. In particular, the index finger, middle finger, ring finger, and little finger can be inserted deeply into the internal space 27A. For example, by bending the fingertip, the finger is caught on the flexible interior sheet 26A, and the pouch container 10w can be firmly held. At this time, the tongue pieces 34A and 35B are folded into, for example, the internal spaces 27A and 27B.

In addition, since the fingers inserted into the internal spaces 27A and 27B are covered with the front and back sheets up to the base, even if the contents are spilled by an unexpected operation, the contents can be prevented from touching the fingers. For example, even if the contents are not preferable to touch the skin directly such as poisonous and deleterious substances such as chemicals, the dispensing operation can be performed safely.

FIG. 23 shows a state in which the finger (index finger, middle finger, ring finger, little finger) is hooked on the edge on the second end side of the opening 29A of the grip portion 25A to grip the pouch container 10w. In the gripping form shown in FIG. 23, only the gripping part 25A is used. At this time, the tongue piece 34A is folded into the internal space 27A. By leaving the tongue piece 34A, the finger is prevented from touching the end of the topsheet 11w, and even when a large load is applied to the finger, the finger does not hurt, and the gripping property is improved.

The pouch container 10w is stably held by the holding portions 25A and 25B. For this reason, even if it is a case where the pouch container 10w is applied to the refill container with a large container capacity | capacitance, favorable refilling operation is possible. Further, the gripping portions 25A and 25B of the pouch container 10w are configured so as not to affect the container capacity. That is, by providing the grip portions 25A and 25B, the container capacity is not reduced, and it is not necessary to increase the outer shape of the container in order to ensure the container capacity.

FIGS. 24 to 26 show other modified examples of the pouch container 10. Here, only the configuration on the front surface side is shown, but it is preferable that the back surface side has the same configuration as that on the front surface side.

24, the pouch container 10x illustrated in FIG. 24 is provided with a plurality of openings 29Ax in a portion overlapping the interior sheet 26A of the topsheet 11x. Each opening 29Ax is provided side by side in the up-down direction at intervals. In the example shown in FIG. 24, four openings 29A are formed by circular cut lines 30Ax that are open in a perfect circle shape in front view without a tongue piece, but the shape and number of openings can be changed as appropriate. is there. For example, the index finger, the middle finger, the ring finger, and the little finger are respectively inserted into the four openings 29Ax.

25, the pouch container 10y illustrated in FIG. 25 is provided with a substantially rectangular opening 29Ay extending in the vertical direction at a portion overlapping the interior sheet 26Ay of the topsheet 11y. The opening 29Ay has the same shape as the opening 29A when the tongue pieces 34A and 35A are folded and opened in the internal space 27A. The opening 29Ay is formed by a substantially rectangular cut line 30Ay. In the example shown in FIG. 25, a transparent sheet is used as the interior sheet 26Ay, and the amount of contents can be confirmed through the interior sheet 26Ay exposed through the opening 29Ay. For example, a scale 36 can be formed in the exposed portion of the interior sheet 26Ay. Thereby, the exact quantity of the contents can be measured.

26, the width of the interior sheet 26Az is shorter than the width of the top sheet 11 in the pouch container 10z illustrated in FIG. That is, the interior sheet 26Az is provided only in the vicinity of the opening 29A. As a result, the internal space of the grip portion 25Az is smaller than that of the pouch container 10.

<Second Embodiment>
The pouch container 50 according to the second embodiment will be described in detail with reference to FIGS. FIG. 27 is a perspective view of the pouch container 50 and shows a state in which the contents are filled. FIG. 28 is an exploded perspective view of the pouch container 50, and FIG. 29 is a longitudinal sectional view of the pouch container 50. In 2nd Embodiment, let the 1st surface of the pouch container 10 be a back surface, and let the 2nd surface be a surface. The pouch container 50 includes a back surface sheet 58 (first surface sheet) and a surface sheet 60 (second surface sheet) as wall surface sheets constituting a first surface (back surface) and a second surface (front surface) facing each other.

As shown in FIGS. 27 to 29, as in the first embodiment, the pouch container 50 includes a top sheet 60, a back sheet 58 that forms a cylindrical body together with the top sheet 60, and lower ends of the front and back sheets. Is a standing pouch comprising a bottom gusset sheet 62 connecting the two. The pouch container 50 further includes a top gusset sheet 64. The pouch container 50 is roughly divided into a container main body 52 configured by bonding a plurality of sheets and a stopper 54 attached to the container main body 52. The pouch container 50 includes a top sheet 60 (second sheet) constituting the surface of the container body 52, a back sheet 58 (first sheet) constituting the back surface, and a bottom gusset sheet 62 constituting a bottom gusset (gusset), And the top gusset sheet 64 constituting the top gusset (gusset) is joined to each other.

The container main body 52 is a substantially cylindrical shape having a thickness corresponding to the size of the gusset sheets 62 and 64, and is a standing pouch that can stand by itself. In addition, the container main body 52 may comprise each sheet | seat mentioned above from another sheet | seat, but you may comprise by folding one sheet | seat. Hereinafter, description will be made assuming that the sheet is composed of another sheet. The plug 54 has a configuration similar to that of the plug 20 used in the first embodiment, is a substantially cylindrical body made of hard resin, and is attached to the upper end of the container body 52. When the contents of the pouch container 50 are poured out, the pouch container 50 is gripped and the pouch container 50 is tilted. In order to facilitate this dispensing operation, in the present embodiment, a grip portion 68 that is gripped by the user is provided only on the surface sheet 60 side of the pouch container 50. The grip portion 68 is provided on the container lower side than the cap 54. Hereinafter, the configuration of each part of the pouch container 50 will be described in detail.

The container body 52 is composed of a plurality of sheets as described above. The top sheet 60 and the back sheet 58 are disposed so as to face each other, and both sides thereof are bonded together to form a substantially cylindrical shape. A portion where both sides of the topsheet 60 and the backsheet 58 are heat sealed becomes a side seal portion 70s. The top sheet 60 and the back sheet 58 have substantially the same width. Further, for the convenience of manufacturing, the vertical length of the surface sheet 60, that is, the sheet on which the gripping portion 68 is formed, is shorter than the vertical length of the back sheet 58, that is, the sheet on which the plug 54 is attached. The top end position of the top sheet 60 is lower than the top end position of the back sheet 58.

The interior sheet 66 is joined to the inner surface of the top sheet 60. Only the peripheral edge of the interior sheet 66 is bonded to the top sheet 60, and the central portion thereof is not bonded to the top sheet 60. Therefore, a space independent of the internal space of the pouch container 50 is formed between the interior sheet 66 and the top sheet 60. In the surface sheet 60, an opening is formed at an overlapping portion with the interior sheet 66. This opening becomes an opening 71 for inserting a finger when the user holds the pouch container 50. The user inserts a finger from the opening 71 into the space between the top sheet 60 and the interior sheet 66 and grips a part of the top sheet 60 or hooks the finger on the top sheet 60. That is, the opening 71 formed in the interior sheet 66 and the top sheet 60 constitutes a gripping portion 68 for gripping the pouch container 50. If the holding part 68 is the surface sheet 60 side and the container lower part side than the top gusset sheet 64, the formation position is not specifically limited. However, in view of stability when the pouch container 50 is gripped, it is desirable to provide the pouch container 50 at a height position substantially the same as the height of the center of gravity of the pouch container 50.

The size of the interior sheet 66 is not particularly limited as long as a space for inserting a finger can be formed between the interior sheet 66 and the top sheet 60. However, in consideration of productivity or the like, the interior sheet 66 is preferably provided over the entire width of the top sheet 60. That is, the width of the interior sheet 66 is preferably the same as the width of the top sheet 60. By setting it as this structure, the pouch container 50 can be manufactured simply and cheaply by the existing bag making process using a elongate sheet | seat. Moreover, the pouch container 50 can be manufactured using the general front and back sheet | seat which has a sealant layer in the single side | surface by inserting the interior sheet 66 between the front and back sheets, and providing the holding part 68. FIG.

The bottom gusset sheet 62 is a sheet that connects the lower end of the top sheet 60 and the lower end of the back sheet 58. The bottom gusset sheet 62 is folded upward and sandwiched between the front and back sheets. In this state, the peripheral edge of the bottom gusset sheet 62 and the front and back sheets are joined to each other. A portion where the periphery of the bottom gusset sheet 62 and the lower end of the top sheet 60 and the lower end of the back sheet 58 are heat sealed becomes a bottom seal portion 70b. When the contents are filled in the pouch container 50, the bottom gusset sheet 62 that has been folded in a mountain is unfolded and spread, and the pouch container 50 is given a thickness.

The top gusset sheet 64 connects the upper end of the top sheet 60 and the top end of the back sheet 58. The top gusset sheet 64 is folded in a downward direction and sandwiched between the front and back sheets. In this state, the periphery of the top gusset sheet 64 and the front and back sheets are joined to each other. A portion where the peripheral edge of the top gusset sheet 64 and the upper ends of the front and back sheets are heat-sealed becomes a top seal portion 70t. In the present embodiment, the upper end position of the top sheet 60 is lower than the upper end position of the back sheet 58. Therefore, the top seal part 70t on the top sheet 60 side is lower than the top seal part 70t on the back sheet 58 side.

A spigot 54 is attached to the top seal portion 70t, which is a joint between the top gusset sheet 64 and the upper end of the back sheet 58. The plug 54 is a substantially cylindrical body made of a hard resin. The spout 54 includes a spout 74 joined to the container body 52 and a cap 76 screwed to the spout 74. As shown in FIG. 28, the spout 74 has a flange 74a formed at the center in the vertical direction, and an attachment portion 74b joined to the container body 52 is provided below the flange 74a. The attachment portion 74b has a substantially boat shape whose cross section becomes thinner as it approaches the outer side in the width direction of the pouch container 50. As will be described in detail later, the upper end of the back sheet 58 and the end of the top gusset sheet 64 are heat sealed in a state where the attachment portion 74b is sandwiched between the upper end of the back sheet 58 and the end of the top gusset sheet 64. Thus, the spout 74 is fixed to the container body 52.

Each sheet constituting the container body 52 is made of a resin film, for example. The same configuration as that of the first embodiment can be applied to the material constituting each sheet, the laminated structure of each sheet, and the like. The sheet can be provided with a printing layer (not shown) for displaying the product name of the contents, the product description such as raw materials and usage precautions, and various other designs.

As described above, in the present embodiment, the container body 52 is provided with a bottom gusset and a top gusset, the stopper 54 is on the back sheet 58 side, and the grip portion 68 for gripping the pouch container 50 is the top sheet 60. Provided on each side. The reason for this configuration is as follows.

When pouring out the contents of the pouch container 50, of course, the pouch container 50 must be held and tilted. At this time, if the pouch container 50 does not have the grip portion 68, the user must directly grip the trunk portion of the pouch container 50 with his / her hand. However, if the force to grip the torso is strong, the pouch container 50 is compressed and the contents are ejected. Conversely, if the force to grip the torso is weak, the pouch container 50 cannot be held and the pouch container 50 may be dropped. It was very difficult to adjust. Therefore, in the case of the pouch container 50 without the gripping portion 68, when pouring out the contents, while holding the trunk of the pouch container 50 with one hand, the other hand is attached to the bottom of the pouch container 50. There was a need. That is, in the case of the pouch container 50 without the grip portion 68, it is difficult to pour out with one hand.

Therefore, it has been proposed to provide a grip on the standing pouch. For example, as shown in FIG. 35, it has been proposed to form a hole 102 serving as a grip portion in the seal portion 101 of the pouch container 100. However, in this case, a dedicated seal portion 101 must be secured for forming the grip portion, and the capacity with respect to the size of the pouch container 100 is reduced. In addition, as shown in FIG. 36, a configuration is also proposed in which a handle 111 serving as a gripping portion is attached to the back surface of a pouch container 110 having a bottom gusset. According to such a configuration, even if the grip portion is provided, the capacity is not reduced.

As shown in FIG. 36, in the case of the pouch container 110 having only the bottom gusset and not having the top gusset, the thickness of the pouch container 110 becomes thinner as it approaches the top side. Therefore, a capacity | capacitance becomes small compared with the pouch container 50 which has the same width | variety and an up-down direction length. In addition, a plurality of pouch containers are displayed side by side at a storefront or the like. At this time, in the case of the pouch container 110 having only the bottom gusset, even if the bottom portions of the plurality of pouch containers 110 are arranged so as to be in contact with each other, a gap is generated between the top portions.

Furthermore, considering the situation of the pouring work, in the case of the pouch container 110, since the thickness increases as it approaches the bottom, the center of gravity of the entire container becomes a relatively low position. Thus, in order to tilt the pouch container 110 having a low center of gravity by gripping only the handle 111 on the back surface, a larger force is required than in the case of the pouch container 50. Therefore, the pouch container 110 is normally tilted with a hand attached to the bottom of the pouch container 110 while holding the handle 111. Further, when the pouch container 110 is tilted and the contents flow downward according to gravity, the relative positional relationship of the center of gravity with respect to the handle 111 is likely to change rapidly. The user needs to adjust the tilt angle of the pouch container 110 in accordance with such a sudden change in the position of the center of gravity. Furthermore, since the pouch container 110 is thinner than the pouch container 50 on the top side, the pouch container 110 is easily deformed as the contents are reduced.

On the other hand, in this embodiment, both the top gusset sheet 64 and the bottom gusset sheet 62 are provided. With this configuration, the entire container has substantially the same thickness. As a result, the internal capacity can be increased compared to the width and height. In addition, when a plurality of items are displayed side by side at a store, a dead space is unlikely to occur and the display space can be used effectively.

Furthermore, the center of gravity can be raised by setting the pouch container 50 to have substantially the same thickness. Therefore, it is easier to tilt the container than the pouch container 110. In addition, since the thickness is substantially the same throughout, even if the pouch container 50 is tilted and the contents flow toward the cap 54, the relative positional relationship of the center of gravity with respect to the gripping portion 68 is small. As a result, it can be tilted stably without the need for delicate adjustment. Furthermore, since the pouch container 50 has an overall thickness, even if the contents are reduced, the pouch container 50 is not easily bent or constricted and is not easily deformed. As a result, stable dispensing work can be performed with one hand.

In the present embodiment, the plug 54 is provided on the opposite surface of the grip portion 68. Therefore, as shown in FIG. 30, when the pouch container 50 is held so that the gripping portion 68 is positioned on the upper side in the gravity direction, the plug 54 positioned on the opposite side of the gripping portion 68 must Will be located on the side. As a result, the contents in the pouch container 50 flow smoothly to the plug 54 by the action of gravity.

In the present embodiment, the grip portion 68 is configured by the opening 71 formed in the top sheet 60 and the interior sheet 66 heat-sealed to the top sheet 60. By setting it as this structure, the pouch container 50 provided with the holding | grip part 68 can be manufactured simply and cheaply by the existing bag making process using a elongate sheet | seat. Conventionally, it has been proposed to attach a gripping part (handle) made of a material different from the sheet constituting the container body to the pouch container, but in such a structure, existing manufacturing such as cutting, folding, and joining of the sheet material is proposed. The grip portion could not be formed during the bag process, and a dedicated process had to be provided for forming the grip portion. As a result, the cost of the pouch container provided with the gripping part is increased, and the manufacturing process is complicated.

Next, the manufacturing process of the pouch container 50 will be described with reference to FIGS. 31 and 32 are diagrams showing a manufacturing process of the pouch container 50. FIG. In FIGS. 31 (a) to 32 (b), the various sheets are illustrated as short sheet pieces. However, in actuality, the various sheets are long sheets until they are cut in FIG. 32 (c). is there.

When manufacturing the pouch container 50, first, the mountain-folded top gusset sheet 64, bottom gusset sheet 62, and interior sheet 66 are arranged between the front and back sheets (FIG. 31A). At this time, the front and back sheets are arranged such that the respective sealant layers face each other. Moreover, the top gusset sheet 64 and the bottom gusset sheet 62 are mountain-folded so that the respective sealant layers come out. The interior sheet 66 is a double-sided heat-sealable sheet.

If various sheets are arranged, the top sheet 60 is punched by a punching machine 80 to form an opening 71 in the top sheet 60 (FIG. 31B). Thereafter, the upper and lower end portions of the interior sheet 66 and the surface sheet 60 are heat-sealed with the heat insulating plate 82 disposed below the interior sheet 66 (FIG. 31C). This heat sealing is performed by pressurizing and heating the outer surface of the topsheet 60 with a heat seal bar 84 having a linear heating section.

Subsequently, a heat insulating plate 86 is arranged between the foldable heaven gusset sheets 64. Then, in this state, the periphery of the top gusset sheet 64 and the end portions of the front and back sheets, and the peripheral end of the bottom gusset sheet 62 and the end portions of the front and back sheets are heat-sealed (FIG. 31D). This heat sealing is performed by pressurizing and heating the outer surfaces of the front and back sheets with a heat seal plate 88 provided with a heating unit having a desired seal shape. In a later step, the plug 54 is inserted between the center of the upper end of the back sheet 58 and the center of the upper end of the top gusset sheet 64. In order to allow the insertion of the plug 54, the back sheet 58 and the top gusset sheet 64 are heat-sealed only on both sides in the width direction of the upper end, and the center portion in the width direction of the upper end is left unsealed. It has become.

FIG. 32A shows a pouch container 50 that has undergone a heat sealing process. Subsequently, the top sheet 60 side of the folded top gusset sheet 64 is raised (FIG. 32B). For example, the guide rail 90 that is gradually deformed from a horizontal state to a vertical state is inserted between the foldable top gusset sheets 64, and the pouch container 50 is moved along the guide rail 90. It can be done by transferring. If the top sheet 60 side of the top gusset sheet 64 rises, the top ends of the top gusset sheet 64 and the top sheet 60 that overlap each other are cut, and the height of the top ends is made lower than the back sheet 58 side.

If the top gusset sheet 64 and the top sheet 60 can be cut, the top gusset sheet 64 is tilted again to return the pouch container 50 to a flat state. Then, both side portions of the pouch container 50 are heat sealed. At this time, in order to join the width direction both ends of the bottom seal portion 70b constituted by the top sheet 60 and the bottom gusset sheet 62 and the width direction both ends of the bottom seal portion 70b constituted by the back sheet 58 and the bottom gusset sheet 62. The point seal Ps is also applied. Similarly, both ends in the width direction of the top seal portion 70t configured by the top sheet 60 and the top gusset sheet 64 and both ends in the width direction of the top seal portion 70t configured by the back sheet 58 and the top gusset sheet 64 are joined. A point seal Ps is also applied. If the side seal portion 70s and the point seal can be formed, a long sheet is cut for each width of one pouch container 50 (FIG. 32 (c)). FIG. 32D shows the state of the pouch container 50 after cutting.

Subsequently, the plug 54 is inserted between the top gusset sheet 64 and the back sheet 58. Specifically, the first and second suction members are first held in a state where the top gusset sheet 64 is sucked and held by the first suction member (not shown) and the back sheet 58 is sucked and held by the second suction member (not shown). Are moved away from each other to form a gap between the back sheet 58 and the top gusset sheet 64. And the attaching part 74b of the cap 54 is inserted in this clearance gap. If the attachment portion 74b of the spigot 54 can be inserted between the back sheet 58 and the top gusset sheet 64, the upper end of the back sheet 58 and the top end of the top gusset sheet 64 are heat sealed with the attachment portion 74b being sandwiched. To do. Here, as is apparent from FIG. 32 (d), in the present embodiment, the top sheet 60 is cut in the middle of manufacture to be lower than the back sheet 58. Therefore, the upper end of the back sheet 58 is exposed to the outside without being hidden by the top sheet 60. Therefore, the operation of separating the back sheet 58 and the top gusset sheet 64 described above, the operation of inserting the attachment portion 74b between the two sheets, and the operation of heat sealing the upper ends of both sheets can be easily performed.

As is clear from the above description, in the present embodiment, the grip portion 68 is configured by a sheet similar to the sheet configuring the pouch container 50. As a result, in the process of the general pouch container 50, the step of forming the opening 71 in the top sheet 60 (FIG. 31B) and the step of joining the top sheet 60 and the interior sheet 66 (FIG. 31C). By simply adding ()), the grip portion 68 can be easily configured. In other words, the pouch container 50 including the grip portion 68 can be manufactured without significantly changing the conventional manufacturing process. Further, by cutting the upper end of the top sheet 60 and making it lower than the back sheet 58 during the manufacturing process, the attaching step of the plug 54 can be performed in the same procedure as before.

However, the cutting process (FIG. 32 (b)) of the surface sheet 60 described above may be omitted. In this case, the point seal Ps may be formed not before but before the plug 54 is attached. That is, when the point seal Ps is not formed in the process of FIG. 32C, the folded gusset sheet 64 can be lifted on one side as shown in FIG. Therefore, after the side seal portion 70s is formed and the long sheet is cut to a predetermined width, the top sheet 60 side of the top gusset sheet 64 is raised using the guide rail 90, and the back sheet 58 side is set to the outside. The plug 54 may be attached in this state after being exposed. And after attaching the plug 54, you may form the point seal | sticker Ps. By setting it as this manufacturing method, since the up-down direction length of the surface sheet 60 can be made the same as the up-down direction length of the back surface sheet 58, the capacity | capacitance of the whole pouch container 50 can be increased more.

In FIG. 27, as described above, the long holes in the up and down direction arranged in the width direction are illustrated as the openings 71 as described above. In this case, the part (band | belt part) pinched | interposed into two long holes among the surface sheets 60 functions like a handle which a user holds. However, the shape, the number, and the size of the opening 71 are not particularly limited as long as fingers can be inserted. Therefore, the opening 71 may not be an opening such as a long hole, but may be a cut formed by breaking the topsheet 60 into a line. The number of openings 71 may be plural or singular. When there are a plurality of openings 71, as shown in FIG. 27, a portion between the opening 71 and the opening 71 in the top sheet 60 functions as a handle that is held by the user. In FIG. 27, the opening 71 is elongated in the vertical direction, but the opening 71 may be elongated in the width direction as long as it has a length that can be inserted by a finger. Further, for example, four openings for receiving one finger may be formed side by side (see FIG. 24 of the first embodiment), and when gripping the pouch container 50, a finger may be inserted into each opening.

Further, in the pouch container 50x illustrated in FIG. 33, a tongue piece 78 is provided on the grip portion 68x. FIG. 33 is a perspective view of a pouch container 50x in which a tongue piece 78 is provided in the opening 71 (a state in which the tongue piece 78 is folded inward), and FIG. 34 is a sectional view taken along the line GG in FIG. The tongue piece 78 is partially connected to the topsheet 60x at the edge of the opening 71, and the remaining portion is separated from the topsheet 60x. When gripping the pouch container 50x, the tongue piece 78 is turned (folded) outward or inward as shown in FIG. In this case, a curved surface 78 a is formed at the edge of the opening 71 by the tongue piece 78. Due to the presence of the curved surface 78a, the biting of the edge of the opening 71 into the finger is alleviated and the gripping property is improved.

The openings and cuts that make up the openings 71 do not have to be formed in advance, and perforations and half-cut lines for forming the openings and cuts may be formed only on the top sheet 60. In this case, when the user needs the grip portion 68 such as when pouring the contents, the top sheet 60 may be broken along the perforation line or the half cut line to form the opening 71.

The interior sheet 66 desirably has the same width as that of the top sheet 60 for the convenience of manufacture. However, the interior sheet 66 does not necessarily have the same width, and the width of the interior sheet 66 may be smaller than the width of the top sheet 60. Further, the end face of the interior sheet 66 can be isolated from the internal space of the pouch container 50 as in the case of the first embodiment (see FIGS. 10 to 12).

The configuration described so far is an example, and other configurations are possible as long as the pouch container 50 has the bottom gusset sheet 62 and the top gusset sheet 64 and the grip portion 68 on the side opposite to the attachment surface of the plug 54. It may be changed as appropriate. For example, the size (aspect ratio) of the pouch container 50 may be changed as appropriate.

<First Embodiment>
10 pouch container, 11 topsheet, 12 backsheet, 13 bottom gusset sheet, 14 filling section, 15 top seal section, 16 bottom seal section, 17 side seal section, 18 spout, 19 cap, 20 spout, 21 notch, 22 cutting line, 23 oblique side part, 25 grip part, 26 interior sheet, 27 internal space, 28 edge seal part, 29 opening, 30 cutting line, 31 band part, 32, 34A, 34B, 35A, 35B tongue piece, 33 tapes, 36 scales

<Second Embodiment>
50 pouch container, 52 container body, 54 spigot, 58 back sheet (first sheet), 60 top sheet (second sheet), 62 bottom gusset sheet, 64 top gusset sheet, 66 interior sheet, 68 gripping part, 70 seal part, 71 opening, 74 spout, 76 cap, 78 tongue, 80 punching machine, 82,86 heat insulation plate, 84 heat seal bar, 88 heat seal plate, 90 guide rail

Claims (13)

1. In a pouch container provided with a wall surface sheet constituting at least a first surface and a second surface facing each other, and a gripping part,
   The gripping part is
   An interior sheet joined to the inner surface of at least one of the first surface and the second surface;
   Of the wall sheet joined to the interior sheet, an opening formed at a position overlapping the interior sheet;
   A pouch container comprising:
2. The wall sheet is
   A first surface sheet constituting the first surface;
   Configuring the second surface, and a second surface sheet that forms a cylindrical body together with the first surface sheet;
   A bottom gusset sheet connecting the lower end of the first side sheet and the lower end of the second side sheet;
   The pouch container according to claim 1, comprising:
3. The interior sheet is bonded to the inner surface of the first surface;
   The said opening is a pouch container of Claim 1 or 2 formed in the position which overlaps with the said interior sheet among said 1st surfaces.
4. The interior sheet is bonded to each of the inner surfaces of the first surface and the second surface at positions facing each other,
   The said opening is a pouch container of Claim 1 or 2 formed in the position which overlaps with the said interior sheet among said 1st surface and said 2nd surface, respectively.
5. Comprising a spout communicating the inside and outside of the pouch container;
   The pouch container according to claim 3 or 4, wherein the spout is provided at a joint portion between the first face sheet and the upper end of the second face sheet.
6. The wall sheet is
   A first surface sheet constituting the first surface;
   Configuring the second surface, and a second surface sheet that forms a cylindrical body together with the first surface sheet;
   A top gusset sheet connecting the upper end of the first side sheet and the upper end of the second side sheet,
   A bottom gusset sheet connecting the lower end of the first side sheet and the lower end of the second side sheet;
   The pouch container according to claim 1, comprising:
7. The pouch container according to claim 6, wherein a position of an upper end of the second surface sheet is lower than a position of an upper end of the first surface sheet.
8. Comprising a spout communicating the inside and outside of the pouch container;
   The spout is provided at a joint between the top gusset sheet and the upper end of the first sheet,
   The grip portion includes the interior sheet joined to the inner surface of the second surface, and the opening formed at a position overlapping the interior sheet in the second surface sheet. The pouch container described.
9. The pouch container according to claim 5 or 8, wherein the grip portion is provided on a lower side of the container than the spout.
10. The pouch container according to any one of claims 1 to 9, wherein the interior sheet is provided over the entire length in the lateral direction of the pouch container.
11. The pouch container according to any one of claims 1 to 10, wherein an end surface of the interior sheet is isolated from an internal space of the pouch container.
12. The pouch container according to any one of claims 1 to 11, wherein the grip portion includes a tongue piece partly connected to the wall sheet and the remaining part separated from the wall sheet.
13. A first face sheet and a second face sheet facing the first face sheet; a top gusset sheet connecting the upper end of the first face sheet and the upper end of the second face sheet; and the lower end of the first face sheet And a bottom gusset sheet that connects the lower end of the second surface sheet, and a pouch container manufacturing method comprising a spout that communicates the inside and outside of the pouch container,
    An opening forming step for forming an opening in the second surface sheet;
    A first joining step of joining the interior sheet at a position overlapping the opening of the inner surface of the second sheet;
    A second joining step for joining the sheets constituting the pouch container to each other after the first joining step;
    A method for manufacturing a pouch container, comprising:

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