JP6405691B2 - Self-supporting packaging bag - Google Patents

Description

  The present invention relates to a self-supporting packaging bag for refilling, and more particularly to a self-supporting packaging bag for storing contents having a capacity of 1 L or more.

  2. Description of the Related Art Conventionally, a self-supporting packaging bag called a standing pouch is generally used as a refill packaging bag for storing contents such as liquid and powder. This self-supporting packaging bag is formed by sealing the bottom sheet by folding the bottom sheet and sealing the bottom seal part and the left and right side parts of the trunk sheet at the bottom of the body sheet made of a flexible sheet. Subsequently, the top part is sealed to form a top seal part. The contents are stored in a space formed by the trunk sheet and the bottom sheet. Moreover, what has a spout in an upper corner part is common.

  However, since the contents of the packaging bag are liquid or powder, the upper part of the packaging bag is bent at the time of display, the shape of the packaging bag is deformed, and the appearance is deteriorated. There is a problem that the bag is bent and difficult to pour out. In addition, there is a problem that the packaging bag is bent and deformed when it is stored in a state where the contents are reduced.

  In order to improve such a problem, the proposal which improves the independence of a packaging bag is made. There is a proposal in which one of the body sheets constituting the packaging bag is made self-supporting by using a highly rigid paper sheet having heat-fusibility (Patent Document 1). Moreover, it is a proposal which forms the side seal part of a packaging bag widely, raises the rigidity of a packaging bag, and improves self-supporting property (patent document 2). Moreover, there is a proposal in which a rib is provided over the entire length in the longitudinal direction of the side seal portion of the self-supporting packaging bag (Patent Document 3). In addition, there is a proposal in which an air sealing portion is provided in a side seal portion of a self-supporting packaging bag (Patent Document 4).

  Recently, there are an increasing number of products whose refill contents have a large capacity of 1 L or more. For example, liquid detergents for clothes, bleaching agents, shampoos, etc. include large packaging bags with a capacity of 1 L or more. When the volume of the content is 1 L or more, there is a problem that it becomes difficult to hold when pouring, and the packaging bag is bent and deformed even when it is stored with the content being reduced.

  Although it is possible to improve the independence by the above proposal, the ease of pouring into the bottle makes it difficult to hold the packaging bag, and there is a problem in stably pouring out. There is a problem that it becomes heavy due to its large capacity, and it is difficult to pour out stably by sliding from the hand.

  In addition, there is a proposal that makes it easy to pour out. There is a proposal for gripping the packaging bag by providing a gripping hole into which the finger can be inserted in the packaging bag.

  There is a proposal in which an enlarged seal portion is provided in an upper corner portion opposite to the spout of the upper corner portion, and a hole for holding a bag is provided in the enlarged seal portion (Patent Document 5). In addition, there is a proposal in which a cut portion for inserting a finger is provided to hold the packaging bag at the seal portion at the upper corner (Patent Document 6).

  In these proposals, fingers are inserted into a hole or a notch for holding a bag, and the packaging bag is held and poured out easily. For example, when pouring, when the spout is directed downward, a wide seal is provided at the upper corner so that the bag retaining hole is on the upper side, and a bag retaining hole or notch is provided in the wide seal. A part is provided.

  However, when the contents are poured out, there is a problem that the load of the contents concentrates on the end portion on the side seal portion side of the bag holding hole, and the end portion, that is, the seal portion is cracked and easily cut. .

  In addition, there is a proposal in which a hole for holding a bag is provided in a content storage part in a longitudinal direction, substantially parallel to the adjacent bag periphery and spaced apart from the bag periphery seal part (Patent Document 7).

  However, similarly, there is a problem that the load is concentrated on the end portion on the side seal portion side of the bag holding hole, and the end portion, that is, the seal portion is cracked and easily cut. In addition, providing a hole for holding a bag in the content storage unit has a problem that it is difficult to insert a finger while the content storage unit is inflated with the content.

  Therefore, there is a demand for a refillable self-supporting packaging bag having a content capacity of 1 L or more, which is self-supporting and can be stably poured out during dispensing.

Japanese Utility Model Publication No. 6-85243 JP-A-6-122456 Japanese Patent Laid-Open No. 11-193038 JP 2001-270533 A Japanese Patent Laid-Open No. 2002-211588 JP 2004-359258 A JP 2010-215278 A

  In view of the problems of the background art as described above, the present invention is a self-supporting packaging bag for refilling whose contents have a capacity of 1 L or more, has self-supporting properties, and stably dispenses at the time of dispensing. It is to provide a packaging bag that can be used.

  In order to solve the above problems, the inventors have intensively studied and completed the present invention.

In the invention according to claim 1 of the present invention, the bottom sheet is folded inward at the lower part of the body sheet disposed oppositely, and the bottom seal part is formed by sealing with the body sheet,
The left and right side parts are sealed to form a side seal part, and the top part is sealed to form a top seal part, and a cap is attached to the upper corner of the top seal part and one side seal part of the side seal part. In the refill packaging bag,
On the side seal part that seals the left and right side parts or the side seal part that faces the plug, an air sealing part is formed in the longitudinal direction,
The side seal portion connected to the plug is formed in a wide seal portion connected in the inner direction, and a bag holding hole or a cut portion into which a finger can be inserted is formed in the wide seal portion. It is a self-supporting packaging bag.

The invention according to claim 2 of the present invention is a self-supporting packaging bag according to claim 1, wherein that you have air sealed portion is formed on the side seal portion sealing the said left and right portions.

  The self-supporting packaging bag of the present invention is provided with an air sealing portion in the longitudinal direction in the left and right side seal portion or the side seal portion facing the mouth plug, and connected in the inner direction to the side seal portion connected to the mouth plug. By providing a wide seal portion and forming a bag holding hole or notch into which the finger can be inserted into the wide seal portion, the bag has a self-supporting property and can be stably poured out. It is a self-supporting packaging bag for refill having a capacity of 1L or more, has self-supporting properties, and can be stably poured out.

  In addition, the side seal part facing the left and right side seal parts or the side plug part is provided with an air-sealed part in the longitudinal direction, so that the packaging bag is not bent at the time of display or dispensing, and the contents are reduced. Even when stored in a fresh state, the packaging bag does not bend and does not lose its shape.

  In addition, the side seal connected to the plug is provided with a wide seal portion connected in the inner direction, and a bag holding hole or a notch portion into which a finger can be inserted is formed in the wide seal portion. In addition, insert a finger into the hole or notch for holding the bag, hook it on the wide seal part, and have an air-sealed part formed on the side seal part facing the spigot, and grasp two places by hand Thus, the packaging bag can be stably held and can be poured out stably. That is, one hand is inserted into a hole or notch for holding a bag and hooked on the wide seal part, and the air-sealed part formed on the side seal part facing the plug is gripped by hand. Thus, at the time of pouring, the packaging bag is not bent and can be poured stably.

  In addition, the body sheet and the bottom sheet are each composed of a laminated sheet composed of a plurality of layers, and at least one of the plurality of layers is a polyester film on which an aluminum foil or an inorganic oxide is deposited, whereby a packaging bag The oxygen gas barrier property and water vapor barrier property can be improved, and the quality storage period of the contents can be extended. In addition, air escape from the air enclosure can be prevented.

It is explanatory drawing which shows an example of the self-supporting packaging bag of this invention. It is explanatory drawing which shows another example of the self-supporting packaging bag of this invention. It is explanatory drawing which shows another example of the self-supporting packaging bag of this invention. It is explanatory drawing which shows an example of the LL 'cross section of the self-supporting packaging bag of FIG. It is explanatory drawing which shows an example which inserts a finger into the hole for bag holding | maintenance. It is explanatory drawing which shows an example which inserts a finger into a notch part. It is explanatory drawing which shows an example of the state which pours out the contents from the self-supporting packaging bag of FIG. It is explanatory drawing which shows an example of the laminated constitution of a trunk | drum part sheet | seat and a bottom part sheet | seat.

  Below, the form for implementing this invention is demonstrated.

  FIG. 1 is an explanatory view showing an example of the self-supporting packaging bag of the present invention. The self-supporting packaging bag 1 of the present invention is composed of a trunk sheet 2, 2 ′ and a bottom sheet 3 that are disposed to face each other. The trunk sheet 2, 2 'and the bottom sheet 3 are flexible sheets. The bottom sheet 3 is inserted into the lower part of the body sheet 2, 2 'while being folded, and the bottom part is sealed to form the bottom seal part 5, and the left and right side parts are sealed to form the side seal parts 4, 4'. The top part is sealed to form the top seal part 6, and a plug 15 is attached to the upper corners of the side seal part 4 and the top seal part 6. The left and right side seal portions 4, 4 ′ are each formed with one air sealing portion 8 in the longitudinal direction. Further, the side seal portion 4 connected to the plug is connected to the inner side, and a wide seal portion 7 is formed. The wide seal portion 7 is formed with a bag holding hole 9 into which a finger can be inserted. Yes.

  The air-filled portion 8 formed in the left and right seal portions 4 and 4 'serves as a support column, and can prevent the packaging bag from being bent during display or extraction. Even when the contents are stored in a reduced state, the packaging bag can be prevented from being bent.

  In addition, by forming the finger bag holding hole 9 into which the fingers can be inserted into the wide seal portion 7, when extracting, the fingers can be inserted to hold the packaging bag and stably extract.

  FIG. 2 is an explanatory view showing another example of the self-supporting packaging bag of the present invention. In the self-supporting packaging bag 1, one air sealing portion 8 is formed in each of the left and right side seal portions 4, 4 ′ in the longitudinal direction. In addition, a wide seal portion 7 is formed in the side seal portion 4 connected to the spigot so as to be connected inwardly, and a cut portion 10 into which a finger can be inserted is formed in the wide seal portion 7 by a cut line 11. Has been. The cut portion 10 is provided with a portion having no cut line, and a portion 12 connected to the wide seal portion is formed.

  FIG. 3 is an explanatory view showing another example of the self-supporting packaging bag of the present invention. In FIG. 3A, one air sealing portion 8 is formed in the longitudinal direction in the side seal portion 4 ′ facing the plug. Further, the side seal portion 4 connected to the plug is connected to the inner side, and a wide seal portion 7 is formed. The wide seal portion 7 is formed with a bag holding hole 9 into which a finger can be inserted. Yes. FIG. 3-2 shows that the side sealing portion 4 ′ facing the plug is formed with one air sealing portion 8 in the longitudinal direction, and the side sealing portion 4 connected to the plug is connected in the inner direction. Thus, the wide seal portion 7 is formed, and the wide seal portion 7 is formed with a cut portion 10 into which a finger can be inserted. In the packaging bag of FIGS. 3A and 3B, the air sealing portion 7 is formed only in the side seal portion 4 ′ facing the cap. Even these packaging bags can prevent the folding of the packaging bag at the time of display or dispensing. Even when the contents are stored in a reduced state, the packaging bag can be prevented from being bent.

  FIG. 4 is an explanatory view showing an example of a cross section taken along line LL ′ of the self-supporting packaging bag of FIG. 1. The body sheet 2, 2 ′ arranged to face each other is sealed at the left and right side parts to form side seal parts 4, 4 ′. A content storage unit 9 is formed in the space between the body sheets 2, 2 ′. As shown in FIG. 4A, air-sealed portions 8 are formed in the left side seal portion 4 and the right side seal portion 4 ′, respectively. Further, the left side seal portion 4 is formed with a wide seal portion 7 connected in the inner direction, and the wide seal portion 7 is formed with a bag holding hole 9 into which a finger can be inserted. Further, in FIG. 4B, a cut portion 10 through which a finger can be inserted into the wide seal portion 7 is formed through a cut line 11. The air sealing portion 8 serves as a support for supporting the packaging bag and improves the independence.

  An example at the time of pouring using the self-supporting packaging bag of this invention is demonstrated easily.

  FIG. 5 is an explanatory view showing an example of inserting a finger into the bag holding hole. The state where the index finger 22 of the right hand 20 is inserted into the hole 9 for holding the bag is shown. As shown in FIG. 5A, the index finger 22 is pressed against the hole 9 for holding the bag, and then the index finger 22 is inserted into the hole 9 for protecting the bag, as shown in FIG. As shown in FIG. 3, the tip of the index finger 22 is bent and hooked on the wide seal portion.

  FIG. 6 is an explanatory diagram illustrating an example of inserting a finger into the cut portion. The cut portion 10 is formed by a cut line 11. As shown in FIG. 6A, the index finger 22 is pressed against the notch 10, and then the notch 10 is pressed with the index finger 22 as shown in FIG. 6B. Then, as shown in FIG. The tip of the index finger 22 is bent and hooked on the wide seal portion.

  FIG. 7 is an explanatory view showing an example of a state in which contents are poured out from the self-supporting packaging bag of FIG. 1. It is explanatory drawing which shows an example of the state which pours out the content from the self-supporting packaging bag which accommodated the large-capacity content. Remove the cap of the cap, expose the mouth portion 16, put the right hand 20 on the side seal portion 4 ′ facing the cap, place the thumb 21 on the front side, and hold the bag formed on the side seal portion 4. For example, the index finger 22, the middle finger 23, and the ring finger 24 of the right hand 20 are inserted into the hole 9 from the back side, and each finger is bent and hooked on the wide seal portion 7. That is, the packaging bag is grasped with the thumb 21, the index finger 22, the middle finger 23, and the ring finger 24. By doing in this way, it can hold stably. Thus, the state which is pouring into the bottle 25 is shown, hold | maintaining a packaging bag. Even if the volume of the contents becomes large and the self-supporting packaging bag becomes large, it can be stably poured out.

  Furthermore, the form for implementing this invention is demonstrated in detail.

  FIG. 8 is an explanatory diagram illustrating an example of a layer configuration of a trunk sheet and a bottom sheet. The trunk | sheet part sheet | seat 2, 2 'and the bottom part sheet | seat 3 are sheets which have flexibility, and the following laminated sheet 30 is mentioned as an example at least. For example, as shown in FIG. 8A, the base film layer 31 and a heat-sealing sealant layer 33 are laminated with an adhesive layer 32 interposed therebetween. The laminated sheet 30 has a layer configuration of base film layer 31 / adhesive layer 32 / sealant layer 33.

  As the base film layer 31, a plastic film having heat resistance can be used. Examples thereof include polyester film, polyethylene naphthalate film, polybutylene terephthalate film, polyethylene film, polypropylene film, nylon film, polystyrene film, polycarbonate film, polyacrylonitrile film, polyimide film, polyvinyl alcohol film, and polyvinylidene chloride film. The support is not particularly limited as long as it has mechanical strength and dimensional stability. A biaxially stretched film is particularly preferable. The thickness of the base film is preferably in the range of 10 to 50 μm in consideration of processability.

  As the sealant layer 33, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), ethylene-methacrylic acid copolymer (EMAA), ethylene- A film made of a polyolefin resin such as ethyl acrylate copolymer (EAA), ethylene-vinyl acetate copolymer (EVA), ionomer, polypropylene (PP) can be used. These resins can be used by forming a film with an extruder. It can be used in a single layer or multiple layers using the above resin. As film thickness, the range of 50-200 micrometers is preferable.

  As the adhesive layer 32, an adhesive for dry lamination can be used. For example, a two-component curable urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, and the like can be used. . As a bonding method, a dry lamination method is possible. Moreover, it can also bond together via an anchor agent (adhesive agent), extruding a sealant layer with an extruder.

Moreover, the base film layer 31 can be provided with a printing layer as necessary. The layer structure is as shown in FIG. The laminated sheet 30 has a layer configuration of base film layer 31 / printing layer 35 / adhesive layer 32 / sealant layer 33. The printing layer 35 is formed of an ink formed by adding a solvent, a binder resin such as urethane, acrylic, nitrocellulose, or rubber, and various pigments, extenders, plasticizers, drying agents, stabilizers, and the like. Is the layer to be played. Characters, designs, etc. can be formed by this print layer. As the printing method, for example, known printing methods such as offset printing, gravure printing, flexographic printing, silk screen printing, and ink jet printing can be used. Moreover, the adhesiveness of a printing layer can be improved by performing the corona treatment or the ozone treatment as the pre-treatment on the surface of the base film layer in advance. Usually, a printing layer is provided on the inner surface of the base film layer.

  Further, if it is necessary to improve various physical properties of the laminated sheet 30, the intermediate layer 34 can be provided on the laminated sheet. For example, the intermediate layer can be laminated in the case of improving the rigidity, drop strength, puncture strength, etc. of the packaging bag, and improving the oxygen gas barrier and water vapor barrier when the contents are food. The layer structure shown in FIG. The laminated sheet 30 has a layer configuration of base film layer 31 / printing layer 35 / adhesive layer 32 / intermediate layer 34 / adhesive layer 32 / sealant layer 33. Further, in order to improve the piercing property and the gas barrier property, two or more intermediate layers may be laminated.

  As the intermediate layer 34, for example, a polyester film or a nylon film can be used to improve the drop strength, the piercing strength, and the like. Moreover, in order to improve gas barrier properties, such as an oxygen gas barrier and a water vapor | steam barrier, aluminum foil, an aluminum vapor deposition polyester film, the polyester film which vapor-deposited inorganic oxide, a polyvinylidene chloride film, etc. can be used. In particular, an excellent gas barrier property can be obtained by using a polyester film on which an aluminum foil or an inorganic oxide is deposited. Moreover, in order to laminate | stack an intermediate | middle layer, it can bond together by the dry lamination method through an contact bonding layer.

  As the inorganic oxide, metal oxides such as silicon oxide, aluminum oxide, magnesium oxide, calcium oxide, potassium oxide, tin oxide, sodium oxide, boron oxide, titanium oxide, lead oxide, zirconium oxide, and yttrium oxide can be used. . Of these, silicon oxide and magnesium oxide are preferable in terms of productivity and price.

  Below, an example of the specific manufacturing method of the self-supporting packaging bag of this invention is demonstrated.

  As the base film layer, a polyester film is used, and gravure printing is performed using a gravure ink having a urethane resin as a binder on one side of the polyester film.

  An aluminum foil is used as an intermediate layer on the printed surface, and is bonded by a dry laminating method via a two-component curable urethane adhesive.

  Next, a nylon film is bonded to the surface of the aluminum foil by a dry laminating method using a two-component curable urethane adhesive.

  Next, a linear low density polyethylene film is bonded to the surface of the nylon film by a dry laminating method using a two-component curable urethane adhesive. In this way, a laminated sheet is created.

  Next, in order to form a self-supporting packaging bag, the laminated sheet is slit to a predetermined width to form a trunk sheet and a bottom sheet.

  Next, the bottom sheet is sandwiched between the lower parts of the body sheet facing each other while being folded, and the bottom part and the left and right side parts are sealed to form the bottom seal part and the side seal part, respectively. Then, the top seal portion is formed by sealing with leaving the opening filled with the contents. At this time, a plug formed in advance is attached to the upper corner. At this time, a wide seal portion is formed in the side seal portion that is connected to the plug and is connected in the inner direction. Further, at this time, a bag holding hole or a notch portion into which fingers can be inserted is formed in the wide seal portion. At this time, a gap formed by an unsealed portion in the longitudinal direction is formed in the left and right side seal portions.

  Next, a method for forming the air enclosure will be briefly described.

  A press-fitting hole for press-fitting air is formed at the end in the longitudinal direction of the gap. The press-fitting hole may be a hole that penetrates the trunk sheet. In order to press-in air from the press-fitting hole, another press-fitting nozzle is brought into contact with the press-fitting hole, and when the target amount of air is reached while press-fitting air into the gap, it is sealed and sealed at a position shifted from the press-fitting hole. Forming part. Thereafter, the press-fitting hole is sealed. That is, the press-fitting hole is closed by the sealant layer, and an air enclosing part is formed.

  Next, a hole for holding a bag or a notch part into which a finger can be inserted is formed in the wide seal part. The method of forming the hole for holding the bag can be performed by punching using a Thomson blade or laser processing. As the type of laser, a carbon dioxide laser is preferable. Similarly, the cut line that forms the cut portion can be punched or laser processed using a Thomson blade. In the cut portion, there is no cut line and a portion connected to the wide seal portion is formed.

  Hereinafter, specific examples of the present invention will be described.

  A polyester film 12 μm, an aluminum foil 7 μm, and a nylon film 25 μm were bonded as a base film layer by a dry laminating method through a two-component curable urethane adhesive. Polyester film 12 μm / adhesive layer / aluminum foil 7 μm / adhesive layer / nylon film 15 μm was formed.

  Next, as a sealant layer, a linear low-density polyethylene film 100 μm was bonded to the nylon film surface through a two-component curable urethane adhesive by a dry laminating method to prepare a laminated sheet. Polyester film 12 μm / adhesive layer / aluminum foil 7 μm / adhesive layer / nylon film 15 μm / adhesive layer / linear low density polyethylene film 100 μm was formed.

  Next, in order to form a self-supporting packaging bag, the laminated sheet was slit into a predetermined width of the trunk sheet and the bottom sheet.

  Next, the bottom sheet is sandwiched between the lower parts of the body sheet facing each other while being folded, and the bottom part and the left and right side parts are sealed to form the bottom seal part and the side seal part, respectively, and then the top part is sealed. A ceiling seal part was formed. An opening for filling the contents was formed in the top seal part. In addition, a stopper formed in advance was attached to the upper corner portion composed of the left seal portion and the top seal portion. In addition, a wide seal portion was formed on the side seal portion connected to the spigot in the inner direction. A self-supporting packaging bag with a spigot was formed.

  The size of the self-supporting packaging bag was 300 mm in length, 180 mm in width, and 55 mm in the folding width of the bottom sheet in order to store 1 L of the contents. In addition, one air-filled portion in the longitudinal direction is formed in the side seal portion connected to the plug with a width of 5 mm × length of 180 mm, and one side in the longitudinal direction is formed in the side seal portion facing the plug. The air enclosure was formed with a width of 5 mm and a length of 220 mm. Also, a bag holding hole into which fingers can be inserted was formed in the wide seal portion. The hole for holding the bag was punched out using a Thomson blade.

  Next, 1 L of shampoo was filled from the opening of the self-supporting packaging bag, and then the opening was sealed to prepare a self-supporting packaging bag containing 1 L of capacity.

  Below, the comparative example of this invention is demonstrated.

<Comparative Example 1>
A self-supporting packaging bag was formed in the same manner as in Example 1 except that no air-sealed portion was formed.

<Comparative example 2>
A self-supporting packaging bag was formed in the same manner as in Example 1 except that the air sealing portion and the bag holding hole were not formed.

<Comparative Example 3>
Example 1 except that an air-sealed portion is not formed, a wide seal portion is formed in the side seal portion opposed to the stopper in the inner direction, and a hole for holding a bag is formed in the wide seal portion. In the same manner as above, a self-supporting packaging bag was formed.

<Comparative example 4>
Example 1 except that an air-sealed portion was formed, a wide seal portion was formed in the side seal portion facing the cap, inwardly connected, and a bag holding hole was formed in the wide seal portion. In the same manner, a self-supporting packaging bag was formed.

<Evaluation method>
・ Easy to pour out (refill) when pouring into bottles was evaluated. A circle indicates that it can be poured out stably. “X” indicates that it is difficult to hold and pour out.
・ The independence of the self-supporting packaging bag was evaluated.
The independence of the packaging bag with 200 ml of the contents left was evaluated. Those that were self-supporting were marked with ○. The case where the upper part of the packaging bag hangs down and is bent is marked with X.

<Evaluation results>
Table 1 shows.

注出し易さは、実施例１の自立性包装袋では、空気封入部と袋保持用の穴に指を掛けて包装袋を把持するように持つことで、安定して注出することができた。また、比較例ｌ〜３では、空気封入部がないので、グリップ感がなく、注出し難かった。比較例４では、袋保持用の穴が、口栓と対向した側シール部側にあるために、グリップ感がなく注出し難かった。また、自立性については、空気封入部がないと、包装袋の上部が垂れ下がり、折り曲がっていた。よって、空気封入部を設けることで、陳列時での折り曲がりや、かつ、内容物が少なくなった状態で保存させても、自立性を維持することができるものであることが判った。

In the self-supporting packaging bag of Example 1, it is possible to stably pour out by holding the packaging bag by holding the finger in the air sealing part and the hole for holding the bag. It was. Moreover, in Comparative Examples 1-3, there was no air sealing part, so there was no grip and it was difficult to pour out. In Comparative Example 4, since the hole for holding the bag was on the side seal portion side facing the plug, there was no grip and it was difficult to pour out. Moreover, about the self-supporting property, if there was no air sealing part, the upper part of the packaging bag drooped and was bent. Therefore, it has been found that by providing the air-sealed portion, it is possible to maintain the independence even when it is folded at the time of display and stored in a state where the contents are reduced.

DESCRIPTION OF SYMBOLS 1 Self-supporting packaging bag of this invention 2 trunk | drum sheet | seat 2 'trunk | drum sheet | seat 3 bottom sheet | seat 4 side seal | sticker part 4' side seal | sticker part 5 bottom seal part 6 top seal part 7 wide seal part 8 air enclosure part 9 bag holding | maintenance part Hole 10 Cut part 11 Cut line 12 Part connected to wide seal part 13 Contents storage part 15 Mouth plug 16 Mouth part 20 Right hand 21 Thumb 22 Index finger 23 Middle finger 24 Ring finger 25 Bottle 30 Laminated sheet 31 Base film layer 32 Adhesive layer 33 Sealant Layer 34 Intermediate layer 35 Print layer

Claims (2)

The bottom sheet is folded inward at the lower part of the body sheet disposed oppositely, and the bottom seal part is formed by sealing with the body sheet,
The left and right side parts are sealed to form a side seal part, and the top part is sealed to form a top seal part, and a cap is attached to the upper corner of the top seal part and one side seal part of the side seal part. In the refill packaging bag,
On the side seal part that seals the left and right side parts or the side seal part that faces the plug, an air sealing part is formed in the longitudinal direction,
The side seal portion connected to the plug is formed in a wide seal portion connected in the inner direction, and a bag holding hole or a cut portion into which a finger can be inserted is formed in the wide seal portion. To self-supporting packaging bags. Autonomy packaging bag according to claim 1, wherein that you have air sealed portion is formed on the side seal portion sealing the said left and right portions.

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