JP2022091228A - Pouch - Google Patents

Abstract

To provide a pouch that can be stable and self-sustaining and can maintain self-sustaining stability.SOLUTION: A pouch 1 includes at least two bag-shaped parts 2 capable of storing contents A and B, and two adjacent bag-shaped parts 2 are separated by a boundary part 3 extending vertically between the two. The two adjacent bag-shaped parts 2 of the set face each other with the boundary part 3 at a bent position, and the parts are joined to each other to maintain a facing state.SELECTED DRAWING: Figure 1

Description

The present invention relates to a self-supporting pouch.

A packaging bag called a pouch made of one or a plurality of resin films in the shape of a bag has been conventionally used as a container for storing liquid chemicals, foods, and the like. The pouch includes a non-self-supporting pouch such as a four-sided seal pouch made by stacking two resin films in a bag shape, and the bottom surface is formed between the two resin films constituting the front surface and the back surface. A self-supporting pouch such as a standing pouch in which a folded resin film is interposed to form a bag is known. Independent pouches can be placed upright on display shelves in stores and the like.

Generally, one type of contents is enclosed in a pouch, but there is also a pouch in which two types of contents are enclosed by partitioning the internal space into two left and right. However, if the internal space is divided into two parts on the left and right, the balance between the left and right sides will be poor, and in the case of a standing pouch, it will easily fall over and will not stand on its own.

In order to make the standing pouch stable and self-supporting, Patent Document 1 describes a portion of the pouch outside the bent line (side seal portion) along a bent line provided inside the left and right side seal portions. It is described that the folded portion is formed by bending the folded portion inward, and the folded portion is similarly bent to form a plurality of folded portions to improve the independence.

Japanese Patent No. 6496985

However, the method described in Patent Document 1 has a problem that it takes time and effort because it is necessary to bend the pouch a plurality of times in order to make it stable and independent. Further, the resin film constituting the pouch has a repulsive force that tends to return to its original state when bent. Therefore, in the method described in Patent Document 1, the folded portion opens (expands) and tries to return to the original shape, and when this shape return occurs, the pouch does not become stable and self-supporting, and the folded portion opens. By (expanding), the width of the pouch increases from the initial state, and as a result, there is a problem that the pouch becomes bulky and requires more storage space than originally expected when arranging the products upright on the display shelf.

The present invention has been made by paying attention to the above-mentioned problems, and an object of the present invention is to provide a pouch that can stably stand on its own and maintain its independence stability.

The present invention relates to a self-supporting pouch (self-supporting pouch). The pouch of the present invention includes at least two bag-shaped portions capable of accommodating the contents, and two adjacent bag-shaped portions are separated by a vertically extending boundary portion between the two, and at least one set of adjacent pouches is adjacent to each other. The two mating bag-shaped portions face each other with the boundary portion bent at a bent position, and the portions are joined to each other to maintain the facing state.

In the pouch of the present invention, preferably, the two facing bag-shaped portions can be configured so that at least a part of the upper edge portion is joined to each other.

Further, preferably, in the pouch of the present invention, the two bag-shaped portions facing each other preferably contain a liquid content on one side and a solid content on the other side, and contain the solid content. An opening auxiliary line is provided in the shape portion below the upper edge portion so as to cross the bag-shaped portion, and the bag-shaped portion is tilted in the bag-shaped portion in which the liquid contents are stored. This can be configured to be characterized in that a spout is provided for pouring out the liquid contents.

According to the pouch of the present invention, it is possible to stably stand on its own and maintain its independence stability.

It is a perspective view of the pouch of this embodiment. It is a bottom view of the pouch of this embodiment. It is a top view of the pouch of this embodiment. It is a top view of the developed state in which the bag-shaped portions facing each other of the pouch of this embodiment are expanded. It is a perspective view of the use state of the pouch of this embodiment. It is a perspective view of the use state of the pouch of this embodiment.

The pouch of the present invention is a self-standing pouch that can store two or more kinds of contents separately and independently, and can stably stand on a shelf, a table, or a box such as a cardboard box. .. Therefore, the pouches of the present invention can be arranged upright on a shelf, a table, or in a box.

The contents contained in the pouch of the present invention are not particularly limited, and are liquid substances such as liquid chemicals (for example, liquid detergents, shampoos, rinses, body shampoos) and liquid foods (for example, curry, sauces, soups), and pastes. In addition to powders and granules such as powders and granules, large solids may be used.

Hereinafter, embodiments of the pouch of the present invention will be described with reference to the accompanying drawings. In this disclosure, the height direction of the self-supporting pouch is the vertical direction.

Overall Configuration of Pouch FIGS. 1 to 3 show the pouch 1 of the present embodiment. The pouch 1 extends vertically between at least two bag-shaped portions 2 (two in the present embodiment) capable of accommodating the contents and two adjacent bag-shaped portions 2, and the bag-shaped portions 2 are connected to each other. It includes at least one (one in the present embodiment) boundary portion 3 for demarcation.

The bag-shaped portion 2 has a storage space inside, and the periphery of the storage space is closed to store the contents in a sealed state. The boundary portion 3 preferably has a predetermined width in order to firmly separate the two adjacent bag-shaped portions 2. Further, the boundary portion 3 can be bent so that the pouch 1 can be folded back at the boundary portion 3 so that two adjacent bag-shaped portions 2 can be overlapped with each other. The boundary portion 3 may be subjected to various known processes such as a ruled line, a sewing machine line, and a half-cut line so that the boundary portion 3 can be easily bent.

The plurality of bag-shaped portions 2 are arranged side by side with a boundary portion 3 placed between them, and it is possible to make two adjacent bag-shaped portions 2 face each other with the boundary portion 3 at a bent position. The pouch 1 has at least one set (one set in the present embodiment) of two adjacent bag-shaped portions 2 facing each other, and two bag-shaped portions facing each other are joined to each other. The facing state of the unit 2 is maintained. As a result, the two bag-shaped portions 2 facing each other form a V shape when viewed from the bottom surface (see FIG. 2), so that the pouch 1 can be stably made to stand on its own. As a means for joining a part of two facing bag-shaped portions 2, for example, heat fusion (heat sealing), ultrasonic welding, adhesive or hot melt, double-sided tape, single-sided tape, or the like can be used. , Preferably heat fusion and ultrasonic welding.

The two bag-shaped portions 2 facing each other are not particularly limited, but preferably at least a part of the upper edge portion (upper edge portion 13 of the back surface sheet 11 described later in the present embodiment) is joined to the upper edge portion. A connecting seal portion 17 is provided. Since the upper edge portion of the bag-shaped portion 2 generally has no contents, it is easy to join with the upper edge portion of the other bag-shaped portion 2. Further, by joining the upper edges of the two facing bag-shaped portions 2, the lower edge portions are widely separated from each other, and the two facing bag-shaped portions 2 form a wide open V-shape in the bottom view. Therefore, the pouch 1 can be made more stable and independent. The two facing bag-shaped portions 2 may be joined to each other at a position other than the upper edge portion, and a part of the side edge portions (side seal portions 15 described later) opposite to the boundary portion 3 or the lower edge portion (the lower edge portion). A part of the bottom seal portion 14) described later may be joined to each other, or other parts may be joined to each other.

The strength of the connecting seal portion 17 for joining the two facing bag-shaped portions 2 is not particularly limited, but the joining of the two facing bag-shaped portions 2 is not easily disengaged, and the bag-shaped portions 2 are easily peeled off from each other. It is preferable not to (not so-called easy peel). As a result, the state in which the bag-shaped portions 2 face each other is well maintained, so that the self-supporting stability of the pouch 1 is not impaired. For example, the strength of the connecting seal portion 17 is preferably 20 N / 15 mm width or more.

The method for measuring the strength of the connecting seal portion 17 is as follows. In accordance with JIS Z 0238: 1998, the width (the length in the direction in which the connecting seal portion 17 extends) is 15 mm, and the length (perpendicular to the width) so as to include the connecting seal portion 17 from each of the two facing bag-shaped portions 2. Length in direction): After cutting out at least three strip-shaped samples of 60 mm, the end portion in the length direction of the sheet cut out from one bag-shaped portion 2 of each sample with a gripping interval of 20 mm using a tensile tester. The peel strength (N / 15 mm width) is measured by grasping the end of the sheet cut out from the other bag-shaped portion 2 and pulling both sheets at a relative movement speed (tensile speed) of 300 mm / min between the grips. Then, by averaging each measured value, the connecting seal strength can be obtained.

In the present embodiment, the solid substance A is contained in one bag-shaped portion 2 of the pouch 1, and the liquid substance B is contained in the other bag-shaped portion 2. When opening the bag-shaped portion 2 containing the solid matter A at a predetermined position in the height direction of the pouch 1, specifically, at a position below the connecting seal portion 17 which is the upper edge portion of the pouch 1. An opening auxiliary line 21 for guiding the opening is provided so as to cross the bag-shaped portion 2 from the side seal portion 15 to the boundary portion 3 so that the opening can be easily performed by hand. The opening auxiliary line 21 can be configured by various known means. Further, in the bag-shaped portion 2 in which the solid matter A is housed, a notch 20 serving as a starting point for opening is provided in the side seal portion 15 so as to be continuous with the opening auxiliary line 21. The shape of the notch 20 is not particularly limited, and in addition to the V-shaped notch (so-called "V notch"), an I-shaped notch (so-called "I notch"), a U-shaped notch, and a semicircle It may be formed by notches of various shapes such as notches of various shapes.

The bag-shaped portion 2 containing the liquid substance B is provided with a spout 22 at the upper corner where the liquid substance B is poured out by tilting the bag-shaped portion. The top seal portion 16 in the vicinity of the spout 22 in the bag-shaped portion 2 containing the liquid substance B is provided with a notch 23 that serves as a starting point for opening. The shape of the notch 23 is not particularly limited as in the notch 20, and can be formed by notches having various shapes. Further, in the bag-shaped portion 2 containing the liquid substance B, an opening auxiliary line 24 for guiding the opening is provided from the notch 23 to the side seal portion 15 so that the opening can be easily performed by hand when opening the bag from the notch 23 as a starting point. It is provided so as to cross the bag-shaped portion 2 up to. The opening auxiliary line 24 can be configured by various known means.

For the solid substance A and the liquid substance B of the present embodiment, the liquid absorbing core material is inserted into a chemical container containing a liquid chemical such as an aromatic liquid or a deodorant liquid, and the liquid chemical is sucked up by the liquid absorbing core material. It is used for a drug volatilizer that volatilizes in the space outside the drug container. The liquid substance B is stored in the bag-shaped portion 2 for refilling the above-mentioned liquid drug, and the solid substance A is stored in the bag-shaped portion 2 as a replacement for the used liquid absorbing core material after sucking up the liquid drug. Will be done.

As in the present embodiment, when one bag-shaped portion 2 of the pouch 1 contains a liquid absorbing core material as a solid substance A and the other bag-shaped portion 2 contains a liquid drug as a liquid substance B, it becomes liquid. The bag-shaped portion 2 containing the drug has a large thickness, but the bag-shaped portion 2 containing the liquid absorbing core material is not thick. Therefore, when arranging a plurality of pouches 1 upright on a shelf or table or in a box, even if the two bag-shaped portions 2 of each pouch 1 face each other, the pouches 1 are efficiently arranged without being large and bulky. Can be done.

Pouch Forming Method The pouch 1 described above is formed using at least one sheet (including a film). In the present embodiment, as shown in FIGS. 2 and 4, the pouch 1 is formed by using three sheets 10 to 12 of the front surface sheet 10, the back surface sheet 11, and the bottom surface sheet 12.

As the three sheets 10 to 12, those used for conventionally known pouches can be used. The three sheets 10 to 12 are not limited to this, and for example, a base layer as an outer surface, a sealant layer as an inner surface, and an intermediate barrier layer sandwiched between the base layer and the sealant layer are melted, for example. It can be composed of a laminate laminated by extrusion laminating or dry laminating.

As the base layer, a uniaxially or biaxially stretched synthetic resin film having printability and being transparent can be used. For example, polyethylene terephthalate film (PET), stretched polypropylene film (OPP), nylon having high strength and good heat resistance can be used. A film (NY) or the like can be preferably mentioned. As the sealant layer, a synthetic resin film having a heat-sealing property that melts by heating and adheres to each other can be used, for example, low density polyethylene film (LDPE), linear low density polyethylene film (LLDPE), and unstretched. Polyethylene film (CPP) and the like can be preferably mentioned. The intermediate barrier layer is a layer provided for imparting gas barrier property, light shielding property, fragrance retention property, and mechanical strength to block oxygen, water vapor, etc., for example, aluminum or silicon oxide on a stretched polyethylene terephthalate film. A film on which alumina or the like is vapor-deposited can be used. The three sheets 10 to 12 can be appropriately laminated with a printing layer for printing and an easily tearing material layer with a tearable film, if necessary.

As shown in FIG. 4, the front surface sheet 10 and the back surface sheet 11 are overlapped with each other, and have substantially the same size and shape. However, in the present embodiment, the upper edge of the back surface sheet 11 is positioned above the upper edge of the front surface sheet 10, so that the upper edge portion 13 protrudes, and the upper edge portion 13 of the back surface sheet 11 is the upper edge of the pouch 1. It constitutes a part of the part. The bottom sheet 12 is sandwiched between the front surface sheet 10 and the lower part of the back surface sheet 11 in a folded state.

The bottom surface (gusset bottom) of the pouch 1 (plurality of bag-shaped portions 2) is formed by, for example, heat-sealing the outer peripheral edge portion of the bottom sheet 12 to the front surface sheet 10 and the back surface sheet 11 to form the bottom seal portion 14. Will be done. The pouch 1 is formed into a bag shape by heat-sealing the left and right side edges of the front surface sheet 10 to the back surface sheet 11 above the bottom surface sheet 12 to form the side seal portion 15. Further, the bottom surface sheet 12 is heat-sealed to the front surface sheet 10 and the back surface sheet 11 at a predetermined position in the width direction of the pouch 1, and the front surface sheet 10 is heat-sealed to the back surface sheet 11 above the bottom surface sheet 12. By forming the boundary portion 3, a plurality of (two in this embodiment) bag-shaped portions 2 are formed on the pouch 1. Then, after the contents are stored in each bag-shaped portion 2, the upper edge portion of the front surface sheet 10 is heat-sealed to the back surface sheet 11 to form the top seal portion 16, so that each bag-shaped portion of the pouch 1 is formed. The part 2 is sealed.

Finally, the pouch 1 is folded back at the boundary portion 3 so that the two adjacent bag-shaped portions 2 face each other, and the folded protruding portion of the back surface sheet 11 which is the upper edge portion of the two facing bag-shaped portions 2. By heat-sealing 13 to each other, the pouch 1 shown in FIGS. 1 to 3 is formed, and the pouch 1 can be imparted with self-sustaining stability.

Action / Effect by Pouch The pouch 1 of the present embodiment described above includes at least two bag-shaped portions 2 capable of accommodating the contents A and B, and two adjacent bag-shaped portions 2 extend in the vertical direction between the two bag-shaped portions 2. The two adjacent bag-shaped portions 2 are separated by a boundary portion 3, and at least one set of adjacent bag-shaped portions 2 face each other with the boundary portion 3 at a bent position, and the portions are joined to each other to maintain the facing state. It is configured to be. Therefore, since the two bag-shaped portions 2 facing each other form a V shape when viewed from the bottom, the pouch 1 can be stably made to stand on its own.

Further, in the pouch 1 of the present embodiment, at least a part of the upper edge portions of the two facing bag-shaped portions 2 are joined to each other, so that the lower edge portions of the two facing bag-shaped portions 2 are widely separated from each other. Form a wide open V-shape. Therefore, the pouch 1 can be made more stable and independent.

Further, in the pouch 1 of the present embodiment, since the two bag-shaped portions 2 facing each other are joined to each other, the pouch 1 has no risk of the two bag-shaped portions 2 facing each other opening (expanding), and the bag-shaped portion 2 has a bag-shaped portion 2. The state in which they face each other is well maintained. Therefore, the self-sustaining stability of the pouch 1 is not impaired, and even if the pouch 1 is erected on a shelf, a table, or in a box, it does not easily collapse.

Further, in the pouch 1 of the present embodiment, since there is no possibility that the two bag-shaped portions 2 facing each other will open (expand), the width of the pouch 1 is increased from the initial state as in the pouch described in Patent Document 1, and the pouch 1 is a pouch. 1 is not bulky. Therefore, when the pouch 1 is placed upright on the display shelf of a store, a storage space larger than initially expected is not required, and the pouch 1 can be displayed and stored in a smaller space than the pouch described in Patent Document 1.

Further, in the pouch 1 of the present embodiment, the solid substance A is contained in one of the two bag-shaped portions 2 facing each other and the liquid substance B is contained in the other, and the bag-shaped portion 2 containing the liquid substance B is contained. The liquid substance B can be poured out by opening the spout 22 using the notch 23 and the opening auxiliary line 24. At this time, since the bag-shaped portion 2 containing the solid matter A is joined to the bag-shaped portion 2 containing the liquid matter B so as to face each other, the bag containing the solid matter A is contained as shown in FIG. By grasping the shaped portion 2 and holding the pouch 1, the pouch 1 can be easily held, and by tilting the bag-shaped portion 2 containing the liquid matter B, the liquid matter B can be easily poured out from the spout 22. ..

As shown in FIG. 6, the bag-shaped portion 2 containing the solid matter A can be taken out by opening the upper portion using the notch 20 and the opening auxiliary line 21.

Modifications of Pouches Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

In the pouch 1 of the above-described embodiment, the upper edge of the back surface sheet 11 is located above the upper edge of the front surface sheet 10 and the upper edge portion 13 protrudes, and the upper edge portion 13 of the back surface sheet 11 is the pouch 1. A part of the upper edge portion is formed as a connecting seal portion 17. However, the back surface sheet 11 does not necessarily have to have the upper edge portion 13 protruding, and as a modification, the back surface sheet 11 may have the same shape and size as the front surface sheet 10. In this modification, the top seal portion 14 constitutes the upper edge portion of the two facing bag-shaped portions 2 of the pouch 1, and the two bag-shaped portions 2 facing each other are joined by joining a part of the top seal portion 14 to each other. It is possible to maintain the facing state of.

Further, in the pouch 1 of the above-described embodiment, the solid substance A is contained in one of the two bag-shaped portions 2 and the liquid substance B is contained in the other, but as another modification, any bag-shaped portion is contained. The liquid substance B may be contained in the bag-shaped portion 2, or the solid substance A may be contained in any of the bag-shaped portions 2. In addition, various combinations of contents of different types or the same can be accommodated in the respective bag-shaped portions 2.

Further, the pouch 1 of the above-described embodiment includes two bag-shaped portions 2, but as another modification, three or more bag-shaped portions 2 may be included. In this modification, only a set of two adjacent bag-shaped portions 2 may face each other with the boundary portion 3 at a bent position, and the portions may be joined to each other to maintain the facing state. Two or more sets of two adjacent bag-shaped portions 2 may face each other with the boundary portion 3 at a bent position, and the portions may be joined to each other to maintain the facing state.

1 Pouch 2 Bag-shaped part 3 Boundary part 13 Upper edge of back sheet (upper edge of bag-shaped part)
17 Connecting seal 21 Opening auxiliary line 22 Outlet

Claims (3)

A pouch that can stand on its own
It contains at least two bag-shaped portions capable of accommodating the contents, and the two adjacent bag-shaped portions are separated from each other by a boundary portion extending in the vertical direction.
A pouch characterized in that at least one set of two adjacent bag-shaped portions face each other with the boundary portion bent at a bent position, and the portions are joined to each other to maintain the facing state. The pouch according to claim 1, wherein at least a part of the upper edge portion of the two facing bag-shaped portions is joined to each other. The two bag-shaped portions facing each other contain a liquid content on one side and a solid content on the other side.
The bag-shaped portion in which the solid contents are stored is provided with an opening auxiliary line so as to cross the bag-shaped portion at a position below the upper edge portion.
The invention according to claim 1 or 2, wherein the bag-shaped portion in which the liquid contents are housed is provided with a spout for pouring out the liquid contents by tilting the bag-shaped portion. Pouch.

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