JP2023042848A - pouch - Google Patents

Abstract

To provide a pouch having a spout, and a configuration that enables easy detachment of the film of the portion sealing the spout.SOLUTION: In a pouch 1, a surface sheet 101 and a back sheet 102 of a sealed space 210 are provided with an opening line L1 along an inclined seal portion 116 in the region near the inclined seal portion 116, the opening line L1 has a first opening line L11 extending from an upper seal portion 114 toward a cylindrical portion 200a and a second opening line L12 extending from the cylindrical portion 200a toward a first side seal portion 111, the first opening line L11 is a curved line convex toward an accommodation space 220 side, and the second opening line L12 is perpendicular to a virtual axis C1, passes through the cylindrical portion 200a in an intersecting manner, and if the line extending parallel to the inclined seal portion 116 is a virtual straight line C2, it is located on the virtual straight line C2, or is located on the accommodation space 220 side relative to the virtual straight line C2.SELECTED DRAWING: Figure 1

Description

This invention relates to pouches.

Conventionally, there has been known a pouch in which a spout is arranged between two side films constituting a packaging bag of a main body, and the spout is sealed during transportation. For example, Japanese Unexamined Patent Application Publication No. 2008-308206 (Patent Document 1) discloses a configuration in which a film sealing a spout can be separated and unsealed.

Similarly, Japanese Unexamined Patent Application Publication No. 2001-335048 (Patent Document 2) also discloses a structure in which the film sealing the spout can be separated and unsealed.

Japanese Patent Application Laid-Open No. 2008-308206 Japanese Unexamined Patent Application Publication No. 2001-335048

In such a pouch having a spout, there is a growing demand for easier separation of the film sealing the spout.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pouch having a spout, which has a configuration that allows easy separation of the film at the portion where the spout is sealed.

A pouch according to the present disclosure includes a packaging bag that includes a top sheet and a back sheet, and that can accommodate contents; and a spout for pouring out the contents from the packaging bag, wherein the packaging bag is a first side seal portion and a second side seal portion formed by sealing the end portions of the top sheet and the end portions of the back sheet, and the upper portion of the top sheet and the back sheet an upper seal portion formed by sealing the upper portion with each other; and sealing between the top sheet and the back sheet so as to extend in a strip shape from the top seal portion toward the first side seal portion. a closed space enclosed with said top seal portion and said first side seal portion and sealingly enclosing said spout; together with said top seal portion, said second side seal portion and said first side seal portion; and an inclined seal portion that is surrounded and defines a containment space that contains the contents.

The spout has a tubular portion for pouring out the contents, and a cap portion for opening and closing one end of the tubular portion, the spout having the cap portion positioned in the sealed space, The cylindrical portion is sandwiched between the top sheet and the back sheet in the inclined seal portion such that the other end side of the cylindrical portion is positioned in the accommodation space, and is tightly sealed and fixed. An opening line is provided along the inclined seal portion in the vicinity of the inclined seal portion on the top sheet and the back sheet of the sealed space.

The opening line has a first opening line extending from the upper sealing portion toward the tubular portion and a second opening line extending from the tubular portion toward the first side sealing portion, and The first opening line is a curved line that protrudes toward the housing space, and the second opening line is perpendicular to an imaginary axis that is the central axis of the tubular portion. When a line passing through so as to intersect and extending parallel to the inclined seal portion is assumed to be an imaginary straight line, it is located on the imaginary straight line, or is located on the accommodation space side with respect to the imaginary straight line ing.

In another embodiment of the pouch, in the first side seal portion, the width of the closed space side seal located on the closed space side is narrower than the width of the storage space side seal located on the storage space side. In the upper seal portion, the width of the closed space upper seal positioned on the closed space side is set narrower than the width of the accommodation space upper seal positioned on the accommodation space side.

In another form of the pouch, the cylindrical portion is elliptical, and the major axis direction is arranged along the extending direction of the inclined seal portion.

In another embodiment of the pouch, the cap portion is fixed to the tubular portion using a hinge member so as to be openable and closable, and the hinge member is provided on the upper seal portion side of the tubular portion. .

According to this disclosure, in a pouch having a spout, it is possible to easily cut off the film at the portion where the spout is sealed.

1 is a perspective view of a pouch according to Embodiment 1. FIG. 1 is a front view of the pouch of Embodiment 1. FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2; FIG. 4 is a first schematic diagram showing an unsealing operation for exposing the spout of the pouch of Embodiment 1; FIG. 10 is a second schematic diagram showing the opening operation for exposing the spout of the pouch of Embodiment 1; FIG. 4 is a schematic diagram showing the operation of pouring out the contents from the spout of the pouch of Embodiment 1; Fig. 10 is a front view of a pouch according to Embodiment 2;

Pouches of respective embodiments based on the present invention will be described below with reference to the drawings. In the embodiments described below, when referring to the number, amount, etc., the scope of the present invention is not necessarily limited to the number, amount, etc., unless otherwise specified. The same reference numbers are given to the same parts and equivalent parts, and redundant description may not be repeated. It is planned from the beginning to use the configurations in the embodiments in combination as appropriate.

In the following description with reference to the drawings, the area indicated by light ink in the drawing indicates the seal area of the sheet.

The contents are not particularly limited, but examples include beverages such as sports drinks, foods such as ice cream and jelly, daily necessities such as shampoos, rinses, body soaps, detergents and softeners, and pharmaceuticals. be done.

(Embodiment 1: Pouch 1)
The structure of the pouch 1 of this embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view of the pouch 1, FIG. 2 is a front view of the pouch 1, and FIG. 3 is a cross-sectional view taken along line III--III in FIG.

(Schematic configuration of pouch 1)
1 and 2, pouch 1 includes a top sheet 101 and a back sheet 102, a packaging bag 100 capable of containing contents, and a spout 200 for pouring out the contents from packaging bag 100. Prepare. The topsheet 101 and the backsheet 102 are composed of a laminate including, for example, polyethylene terephthalate, aluminum, nylon, polyethylene, and polypropylene.

The packaging bag 100 includes a first side sealing portion 111 and a second sealing portion 111 formed by sealing the ends of the top sheet 101 and the back sheet 102 in the width direction (horizontal direction in FIG. 2) to each other. A side seal portion 112, a lower seal portion 113 formed by sealing the lower portion of the top sheet 101 and the lower portion of the back sheet 102 to each other, and the upper portion of the top sheet 101 and the upper portion of the back sheet 102 are sealed to each other. and an upper seal portion 114 formed by As indicated by broken lines in FIG. 2 , the pouch 1 may be formed into a standing pouch that can stand on its own by providing bottom gusset sheets 115 under the top sheet 101 and under the back sheet 102 . When the bottom gusset sheet 115 is not provided, the flat pouch is formed.

The packaging bag 100 includes an inclined seal portion 116 in which the top sheet 101 and the back sheet 102 are sealed so as to extend in a band from the top seal portion 114 toward the first side seal portion 111 . The angled seal portion 116 is surrounded by an upper seal portion 114 and a first side seal portion 111 and includes an enclosed space 210 that hermetically accommodates the spout 200 , an upper seal portion 114 , a second side seal portion 112 and a lower seal portion 113 . and the first side seal portion 111 to separate the storage space 220 that stores the contents.

The spout 200 has a tubular portion 200a for spouting the content to the outside and a cap portion 200b for opening and closing one end of the tubular portion 200a. The spout 200 is configured such that the cap portion 200b is positioned in the closed space 210 and the other end side of the tubular portion 200a is positioned in the housing space 220, and the cylindrical portion 200a is positioned at the inclined seal portion 116 so that the top sheet 101 and the back sheet 102 are separated from each other. It is sandwiched between and tightly sealed and fixed.

The inclined seal portion 116 includes a hanging portion 116a and an inclined portion 116b, and the cylindrical portion 200a is fixed to the inclined portion 116b. More specifically, when the central axis of the tubular portion 200a is the imaginary axis C1, the inclined portion 116b is aligned with the tubular portion so that the imaginary axis C1 is perpendicular to the inclination direction of the inclined portion 116b. 200a is fixed. The inclined seal portion 116 may have only the inclined portion 116b without the hanging portion 116a.

As a method for sealing between the sheets constituting the packaging bag 100 and for sealing the portion where the spout 200 is fixed to the inclined seal portion 116, fusion bonding such as heat sealing, ultrasonic sealing, and high frequency sealing, and bonding with an adhesive can be used. Various known methods may be used.

(Open line L1)
The top sheet 101 and the back sheet 102 of the closed space 210 are provided with an opening line L1 along the inclined seal portion 116 in the vicinity of the inclined seal portion 116 . The region in the vicinity of the inclined seal portion 116 is the area from below the cap portion 200b of the spout 200 to the inclined seal portion 116 (it is sufficient if the opening portion of the tubular portion 200a is exposed). It means an area of 0.5 mm to 15 mm, more preferably, from below the half length to the inclined seal portion 116 .

The opening line L1 has a first opening line L11 extending from the upper seal portion 114 toward the cylindrical portion 200a and a second opening line L12 extending from the cylindrical portion 200a toward the first side seal portion 111. ing. In the present embodiment, the first opening line L11 is a curved line convex toward the housing space 220, and the second opening line L12 is a straight line.

In the present embodiment, a notch region S1 extending inward along the drooping portion 116a is provided at a position where the first opening line L11 of the upper seal portion 114 reaches. The user can easily start separating the top sheet 101 and the back sheet 102 from the notch region S1 as the opening starting point.

When the central axis of the tubular portion 200a is the imaginary axis C1, the first opening line L11 extends to the intersection P1 with the imaginary axis C1, and the second opening line L12 extends from the intersection P1 with the imaginary axis C1. Good. The position of the intersection point P1 is appropriately designed between the upper seal portion 114 and the right end of the spout 200 (end on the far side in the unsealing direction). A position within the range of the width of the spout 200 is preferable, and a position between the left end of the spout 200 (the front end in the unsealing direction) and the imaginary axis C1 is more preferable.

The opening line L1 is, for example, a cutting auxiliary line formed on the surface portions of the top sheet 101 and the back sheet 102 . The top sheet 101 and the back sheet 102 of the storage space 220 are cut along the opening line L1, which is a cutting auxiliary line. The auxiliary cutting line can be exemplified by a half-cut line, a perforation line, a cut line, or a combination thereof. This opening line L1 is formed by laser irradiation, for example.

(seal width)
In the first side seal portion 111, the width W12 of the enclosed space side seal 111b located on the closed space 210 side is set narrower than the width W11 of the accommodation space side seal 111a located on the accommodation space 220 side. . In the upper seal portion 114, the width W22 of the closed space top seal 114b located on the closed space 210 side is set narrower than the width W21 of the accommodation space top seal 114a located on the accommodation space 220 side.

By narrowing the width of the sealed space side seal 111b and the accommodation space upper seal 114a in this manner, the movable range of the film in the sealed space 210 is widened, and the occurrence of wrinkles in the film in the sealed space 210 is suppressed. becomes possible. In addition, the cutting distance of the seal portion is shortened and the flexibility of the seal portion is improved, thereby facilitating cutting of the seal portion.

The position at which the spout 200 is attached to the inclined portion 116b is from the point of intersection P1 of the spout 200 to the point where the height along the imaginary axis C1 is h1, and the imaginary axis C1 intersects the closed space side seal 111b (intersection point P2). When the spatial distance is h2, it is preferable that the spatial distance h2 is larger than the height h1 of the spout 200. FIG. The spout 200 is preferably fixed to the inclined seal portion 116 so that the imaginary axis C1 intersects the enclosed space side seal 111b.

A sufficient distance is secured from the spout 200 to the closed space side seal 111b, and the spout 200 does not catch the top sheet 101 and the back sheet 102 of the closed space 210.例文帳に追加In the bag-making process, wrinkling of the top sheet 101 and the back sheet 102 can be suppressed when the spout 200 is enclosed.

Referring to FIG. 3, tubular portion 200a of spout 200 is preferably elliptical. In this case, the longitudinal direction of the cylindrical portion 200a is preferably arranged along the direction in which the inclined seal portion 116 extends. Accordingly, it is possible to suppress an increase in the thickness of the inclined seal portion 116 in the region where the cylindrical portion 200a is fixed. The tubular portion 200a is not limited to an elliptical shape, and may be circular or polygonal. Furthermore, since the amount of deformation of the topsheet 101 and the backsheet 102 is small when the cylindrical portion 200a is sandwiched, the occurrence of wrinkles in the topsheet 101 and the backsheet 102 can be suppressed.

Next, with reference to FIGS. 4 to 6, the manner of use of the pouch 1 having the above configuration will be described. 4 and 5 are first and second schematic diagrams showing the opening operation of exposing the spout 200 of the pouch 1, and FIG. 6 is a schematic diagram showing the operation of pouring out the contents M from the spout 200 of the pouch 1. be.

Referring to FIG. 4, for example, the user grips the upper side of pouch 1 with left hand 10, grips sealed space 210 with right hand 11, and separates sealed space 210 along opening line L1 starting from notch region S1. to start. At this time, the cutting is first started along the first opening line L11 having the shape of a curved line. When the user tries to separate the enclosed space 210 with the right hand 11, the user applies force toward the front side (user side) (in the direction of arrow A in FIG. 4).

At this time, rather than the first opening line L11 being a straight line, it is easier for the user to follow the movement of the right hand 11 if the first opening line L11 is a curved line shape that is convex toward the accommodation space 220 side, and the user can open the first opening line L11 with a relatively light force. 1 It can be separated along the opening line L11. Since a sufficient distance is provided between the spout 200 and the closed space side seal 111b as shown in FIG.

Next, as shown in FIG. 5, after the first unsealing line L11 reaches the spout 200, the user tries to pull the sealed space 210 outward (to the right in the drawing) (see FIG. 5). arrow B direction). In this case, it is easier for the second opening line L12 to follow the movement of the right hand 11 if it is a straight line. The user can separate the seal of the sealed space 210 along the second opening line L12 with a relatively light force.

Next, as shown in FIG. 6, after the seal of the sealed space 210 is pulled away from the housing space 220 side, the cap portion 200b provided on the spout 200 is opened, and the pouch 1 is tilted to remove the contents M. It becomes possible to pour out against the object. When the cap portion 200b is fixed to the tubular portion 200a using the hinge member 260 so as to be openable, the hinge member 260 is preferably provided on the upper seal portion 114 side of the tubular portion 200a.

As a result, when the contents M are poured out onto the object, the cap part 200b is positioned upward, and the cap part 200b can be prevented from getting wet with the contents M. The cap portion 200b is not limited to using the hinge member 260, and a detachable screw type cap may be employed. By adopting these configurations, when the top sheet 101 and the back sheet 102 are separated to expose the spout 200, the top sheet 101 and the back sheet 102 are erroneously caught in the cap portion 200b, resulting in an unintended cap portion 200b. It is also possible to suppress the opening of

(Embodiment 2: Pouch 1A)
The configuration of pouch 1A of the present embodiment will be described with reference to FIG. FIG. 7 is a front view of pouch 1A. The basic configuration of the pouch 1A of the present embodiment is the same as that of the pouch 1 of the first embodiment. The difference lies in the shape of the opening line.

The position where the opening line is provided may be such that the spout 200 is exposed when the top sheet 101 and the back sheet 102 are separated along the opening line. Furthermore, considering that the contents are poured out from the opening of tubular portion 200a, as described in Embodiment 1, the opening line should be below half the length of tubular portion 200a in the axial direction. preferably passes through a region of 0.5 mm to 15 mm.

The opening line L20 of the present embodiment includes a first opening line L21 extending from the upper seal portion 114 toward the cylindrical portion 200a and a second opening line L21 extending from the cylindrical portion 200a toward the first side seal portion 111. It has a line L22. In the present embodiment, the first opening line L21 is a curved line that protrudes toward the accommodation space 220 side, and the second opening line L22 is located on the accommodation space 220 side.

Here, the fact that the second opening line L22 is positioned in the accommodation space 220 means that the second opening line L22 is perpendicular to the imaginary axis C1, which is the central axis of the tubular portion 200a, and passes through the tubular portion 200a so as to intersect. (preferably, passing through a position closer to the housing space 220 than half of the cylindrical portion 200a in the axial direction), and a line extending parallel to the inclined seal portion 116 is assumed to be an imaginary straight line C2. This means that L22 is located on the housing space 220 side with respect to the virtual straight line C2. Moreover, although the intersection P21 between the first opening line L21 and the second opening line L22 is provided on the imaginary axis C1, the intersection P21 may be provided at a position above the cylindrical portion 200a.

The second opening line L12 in Embodiment 1 is positioned on the imaginary straight line C2.

In addition, although the seal width of the inclined seal portion 116 of the first embodiment shown in FIG. 2 is constant, the seal width of the inclined seal portion 116 of the second embodiment shown in FIG. The width of the seal with the sheet 102 may be narrower than the seal width of other areas (closer to the sealed space 210 side) (seal area 116c). By sealing in this way, the tensile force of the film in the cylindrical portion 200a when sealing is less likely to be applied to the spout 200, thereby suppressing the occurrence of wrinkles in the unsealed region and the occurrence of poor sealing. can be done.

Furthermore, according to the configuration of the pouch in each of the above embodiments, the amount of resin used can be greatly reduced compared to a container made of a resin molded product, and after use, the gas can be removed from the gas filling portion to make the container compact. It can be folded to reduce the volume and discarded.

As described above, the pouch of the present disclosure has been described in the embodiments, but the embodiments disclosed this time are illustrative in all respects and are not restrictive. The scope of the present invention is indicated by the scope of claims, and includes all modifications within the meaning and scope of equivalence to the scope of claims.

Reference Signs List 1, 1A pouch, 100 packaging bag, 101 front sheet, 102 back sheet, 111 first side seal portion, 111a housing space side seal, 111b closed space side seal, 112 second side seal portion, 113 bottom seal Part 114 Upper Seal Part 114a Accommodating Space Upper Seal 114b Enclosed Space Upper Seal 116 Inclined Seal Part 116a Weight Lower Part 116b Inclined Part 116c Seal Area 200 Spout 200a Cylindrical Part 200b Cap Part 210 Sealing Space, 220 accommodation space, 260 hinge member.

Claims (4)

a packaging bag including a top sheet and a back sheet and capable of containing contents;
a spout for pouring out the contents from the packaging bag,
The packaging bag is
a first side seal portion and a second side seal portion formed by sealing an end portion of the top sheet and an end portion of the back sheet in the width direction to each other;
an upper seal portion formed by sealing the upper portion of the top sheet and the upper portion of the back sheet to each other;
The top sheet and the back sheet are sealed so as to extend in a band from the top seal portion toward the first side seal portion, thereby enclosing the top seal portion and the first side seal portion together. , a slanted seal defining a closed space for hermetically housing said spout and a receiving space surrounded by said upper seal portion, said second side seal portion and said first side seal portion and containing said contents. Department and
including
The spout has a tubular portion for pouring out the contents, and a cap portion that opens and closes one end side of the tubular portion,
The spout is configured such that the cap portion is positioned in the sealed space and the other end side of the tubular portion is positioned in the accommodation space, and the cylindrical portion is positioned at the inclined seal portion between the top sheet and the back surface. It is sandwiched between sheets and tightly sealed and fixed,
An unsealing line is provided along the inclined seal portion in the vicinity of the inclined seal portion on the top sheet and the back sheet of the sealed space,
the opening line has a first opening line extending from the top seal portion toward the tubular portion and a second opening line extending from the tubular portion toward the first side seal portion;
The first opening line is a curved line that is convex toward the accommodation space,
The second unsealing line is an imaginary line that is perpendicular to an imaginary axis that is the central axis of the cylindrical portion, passes through the cylindrical portion so as to intersect, and extends parallel to the inclined seal portion. If it is a straight line, it is located on the virtual straight line, or is located on the accommodation space side with respect to the virtual straight line.
pouch. In the first side seal portion, the width of the sealed space side seal positioned on the sealed space side is provided narrower than the width of the accommodation space side seal positioned on the accommodation space side,
In the upper seal portion, the width of the closed space upper seal located on the closed space side is narrower than the width of the accommodation space upper seal located on the accommodation space side.
The pouch of Claim 1. The cylindrical portion has an elliptical shape, and the major axis direction is arranged along the direction in which the inclined seal portion extends.
A pouch according to claim 1 or claim 2. The cap portion is fixed to the tubular portion using a hinge member so as to be openable and closable,
The hinge member is provided on the upper seal portion side of the cylindrical portion,
4. The pouch according to any one of claims 1-3.

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