JP2002362586A - Packaging bag having hanging means and its production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag having a hanging means without increasing production cost and without lowering a distribution characteristic when the same is filled with a content, and to provide an easy production method therefor. SOLUTION: In forming this packaging bag having a hanging means, a multilayer plastic film is heat sealed. A hanging means having a heat seal characteristic is heat sealed and fixed on the exposed part of the heat seal resin layer of the multilayer plastic film forming a bag main body formed in the heat seal part of the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag having hanging means formed by heat-sealing a multilayer plastic film and a method for producing the same.

[0002]

2. Description of the Related Art It is known to provide a hanging means on a packaging bag formed by heat-sealing a plastic film. For example, a locking portion 25 comprising a hole, a slit or the like is provided in a heat sealing portion 23 of a packaging bag 21. Some of them are known (see FIG. 16), and those to which a string 26, a hook, or the like, which is a separate member from the packaging bag 21, are attached (see FIG. 17). However, in the case where the packaging bag is provided with a locking portion including a hole or a slit, the packaging bag may be damaged if the locking portion is caught during distribution of the packaging bag filled with the contents.
For this reason, the shape and dimensions of the locking portion provided on the packaging bag are limited, and it is difficult to provide a locking portion having the necessary suspension aptitude, and if a large hole or a long slit-shaped locking portion is formed, There is a problem that the rigidity and shape stability of the heat seal portion are impaired, the appearance is deteriorated, and the commercial value is reduced.

In particular, in the case of a self-standing bag (standing pouch) having a gusset portion folded inward at the bottom of the packaging bag, a hanging means is provided on the heat seal portion at the bottom of the packaging bag so that the packaging bag is inverted and suspended. When trying to form a stop, it is difficult to provide a large hole or a long slit-shaped stop because the rigidity and shape stability of the bottom heat-sealed portion greatly affect the independence of the packaging bag. In addition, in order to form a locking portion having good hanging suitability, in order to increase the rigidity and shape stability of the heat sealing portion, it is necessary to change the configuration of the plastic film constituting the packaging bag. This leads to an increase in cost.

[0004] On the other hand, if a string, hook, or the like, which is a member separate from the packaging bag, is used, the amount of material used will increase, leading to an increase in cost, and the packaging bag filled with the contents will become bulky or snagged during distribution. The suitability for distribution is reduced. As a method of maintaining the rigidity and shape stability of the heat seal portion without impairing the suitability for distribution, there is also known a method of half-forming a locking portion using a weakening process 27 such as a perforation in the heat seal portion 23 of the packaging bag 21. However, if the plastic film is simply subjected to the weakening process, it is difficult to form the locking portion by breaking the weakened portion with the finger at the time of use, which is inconvenient.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and without increasing the cost,
An object of the present invention is to provide a packaging bag having a hanging means that does not reduce the suitability for distribution of a packaging bag filled with contents, and a simple production method thereof.

[0006]

According to the present invention, the following configuration is employed to solve the above-mentioned problems. 1. In a packaging bag formed by heat-sealing a multilayer plastic film, a hanging means having a heat-sealing property is formed in a heat-sealing portion of the bag body, and an exposed portion of a heat-sealing resin layer of the multilayer plastic film constituting the bag body is formed. And a packaging bag having hanging means fixed by heat sealing. 2. 2. A packaging bag having hanging means according to 1, wherein a hanging means in the form of a thread or a band is used as the hanging means. 3. 3. The packaging bag having the hanging means according to 1 or 2, wherein the hanging means is fixed to the packaging bag near both ends. 4. The packaging bag according to any one of claims 1 to 3, wherein the packaging bag is a self-standing bag having a gusset portion at a bottom portion, and the hanging means is fixed inside the gusset portion. 5. A packaging having a hanging means according to any one of claims 1 to 3, wherein the packaging bag is a side gusset bag having a gusset part on a side part, and the hanging means is fixed inside the gusset part. bag. 6. A packaging having a hanging means according to any one of claims 1 to 3, wherein the packaging bag is a bag having a jointed palm part, and the hanging means is fixed between the bag body and the jointed palm part. bag. 7. 4. The packaging bag according to any one of claims 1 to 3, wherein the packaging bag is a bag in which two, three or four sides of the bag are sealed, and the hanging means is fixed on a heat seal portion of the bag. A packaging bag having hanging means. 8. 8. The packaging bag having the suspending means according to any one of 1 to 7, wherein the suspending means has a length extending over substantially the entire length of one side of the bag. 9. 9. The packaging bag having hanging means according to any one of 1 to 8, wherein the packaging bag has a self-closing spout. 10. An exposed portion of a heat-sealable resin layer is formed in a portion to be heat-sealed of a multilayer plastic film constituting a bag body, and heat-sealing of a packaging bag and fixing of a suspending means are simultaneously performed. A method for producing a packaging bag having the hanging means according to any one of claims 1 to 3. 11. A heat-sealing resin layer is provided in the inner layer of the multilayer plastic film constituting the bag body, and the exposed portion of the heat-sealing resin layer is formed by cutting out the multilayer plastic film on one side of the portion to be heat-sealed. A method for producing a packaging bag having the hanging means according to claim 10.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The multilayer plastic film constituting the packaging bag body according to the present invention has two or more layers in which a heat-sealing thermoplastic resin film is used as an inner layer of the bag and other films are laminated. Is used. Examples of the thermoplastic resin film having heat sealing properties include polypropylene, propylene-ethylene copolymer, crystalline polybutene-1, crystalline poly4-
Methylpentene-1, low-, medium- or high-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA), ethylene-ethyl acrylate Polymer (E
EA), polyolefins such as ion-crosslinked olefin copolymer (ionomer); polystyrene, styrene-
Aromatic vinyl copolymers such as butadiene copolymer; vinyl halide polymers such as polyvinyl chloride and vinylidene chloride resin; nitrile polymers such as acrylonitrile-styrene copolymer, acrylonitrile-styrene-butadiene copolymer; nylon 6, polyamides such as nylon 66, para- or meta-xylylene adipamide; polyesters such as polyethylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate, poly-1,4-cyclohexane dimethylene terephthalate, polyethylene naphthalate; various types Polycarbonate;
Examples thereof include thermoplastic resins such as polyacetals such as polyoxymethylene.

Particularly preferred materials include, for example, low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, propylene-ethylene copolymer, ethylene-vinyl acetate copolymer, and ethylenically unsaturated carboxylic acid. Olefin resins such as olefin resins graft-modified with acids or anhydrides thereof,
An ionomer resin, a polyamide or copolyamide resin or a polyester or copolyester resin having a relatively low melting point or low softening point is used.

As the multilayer plastic film constituting the packaging bag body of the present invention, the above-mentioned heat-sealing thermoplastic resin film is used as an inner layer of the bag, and other films are optionally interposed via an adhesive layer. Use the laminated film. As the material for forming the adhesive layer, an adhesive property selected from polyethyleneimine resin, alkyl titanate resin, polyester-isocyanate resin, urethane resin, epoxy resin, polyether resin, olefin resin having polar groups introduced, etc. Use resin.

The film to be laminated with the heat-sealing resin is not particularly limited, and any film usually used for a packaging bag can be used. As a material suitable for such a film, any of the above-mentioned materials used as the heat-sealable resin can be used, and a material of the same type or different from the resin used as the inner layer is appropriately selected. Further, as another film, a metal foil such as aluminum, paper, cellophane, or the like and one or more of the above plastic films bonded together can be used. In particular, in the case of contents requiring gas barrier properties, a resin layer such as polyvinylidene chloride resin, EVA saponified product, nylon or cyclic olefin copolymer, or a resin layer having a metal oxide deposited film such as aluminum or silicon oxide It is preferable to use a laminated film including a resin layer containing a clay mineral and a metal foil such as aluminum or steel. In order to impart heat insulation and rigidity to the film constituting the packaging bag, films made of various synthetic resin foams can be used.Also, alumina, silica, titanium oxide, calcium carbonate, carbon, talc, etc. Films made of various synthetic resins obtained by kneading inorganic substances, glass fibers, and the like can also be used.

The layer structure of the multilayer film suitable for forming the packaging bag of the present invention is as follows: biaxially oriented polyethylene terephthalate (PET: outer layer) / unstretched linear low-density polyethylene (LLDPE: inner layer) Stretched nylon (outer layer) / LLD
PE (inner layer), biaxially stretched PET (outer layer) / aluminum foil (intermediate layer) / LLDPE (inner layer), biaxially stretched nylon (outer layer) /
Aluminum foil (intermediate layer) / LLDPE (inner layer), biaxially stretched P
ET (outer layer) / biaxially stretched nylon (middle layer) / LLDPE (inner layer), biaxially stretched PET (outer layer) / aluminum foil (middle layer)
/ Biaxially stretched nylon (intermediate layer) / LLDPE (inner layer). For applications requiring high-temperature treatment such as heat treatment under pressure, biaxially stretched PET (outer layer) / aluminum foil (intermediate layer) / unstretched polypropylene (PP: inner layer), biaxially stretched PET (outer layer) / Biaxially stretched nylon (middle layer) / aluminum foil (middle layer) / unstretched PP (inner layer), biaxially stretched PET
(Outer layer) / Unstretched PP (Inner layer), Biaxially stretched nylon (Outer layer)
/ Unstretched PP (inner layer), biaxially stretched nylon (outer layer) / aluminum foil (intermediate layer) / unstretched PP (inner layer), inorganic oxide deposited biaxially stretched PET (outer layer) / unstretched PP (inner layer), inorganic A laminated film using unstretched PP for the inner layer such as oxide-deposited biaxially stretched nylon (outer layer) / unstretched PP (inner layer) can be used. An adhesive layer selected from the above-mentioned adhesive resins is provided between the layers of these laminated films.

The layer structure of the multilayer plastic film may be selected according to the properties of the contents to be filled in the packaging bag. The production of the plastic film can be performed by a usual method such as a casting method, a T-die method, a calendering method or an inflation method. The production of the laminated film can be carried out by a conventional method such as dry lamination of a film formed in advance, coating on a base film, and co-extrusion.

In the packaging bag of the present invention, the heat-sealing resin layer of the multilayer plastic film constituting the bag body is exposed at the heat-sealing portion of the packaging bag formed by heat-sealing the above-mentioned multilayer plastic film. A hanging means having a heat sealing property separate from the bag body is fixed to the exposed portion by heat sealing.

Next, an example in which the packaging bag of the present invention is constituted by a two-layer film having a heat-sealing resin layer as an inner layer and another film laminated on the outer layer will be described with reference to FIGS. FIG. 1 is a schematic view showing a process of fixing a suspending means to a packaging bag by heat sealing. FIGS. 2 and 3 show a heat-sealing resin of a film constituting a bag body, which is formed on a heat sealing portion of the packaging bag. It is a schematic cross section of the exposed part of a layer.

The packaging bag 1 comprises a heat-sealable resin layer 1
A flat bag is formed by stacking two two-layer films each having an inner layer and another film 12 made of a resin having a higher melting point than the heat-sealing resin layer 11 as an outer layer, and heat-sealing the four sides. is there. Other film 12
Is incompatible with the heat-sealable resin layer 11 and does not exhibit heat-sealability, or the heat-sealable resin layer 1
Although it is compatible with No. 1, a material having a high melting point is preferably used. The exposed portion 4 of the heat-sealable resin layer 11 is formed in the heat-sealable portion 3 of the two-layer film constituting the bag body by completely cutting out the two-layer film on one side as shown in FIG. Next, on the exposed portion 4, a belt-shaped suspending means 5 having a resin layer having a heat sealing property equal to the melting point of the heat sealing resin layer 11 disposed on the outer surface is placed, and the periphery of the bag is heat sealed. Thus, heat sealing of the peripheral portion of the packaging bag and fixing of the suspending means 5 are performed simultaneously.

When the hanging means 5 is fixed at the same time as the heat sealing of the peripheral edge of the packaging bag, the heat is applied by heat-sealing and the pressure is applied to the peripheral portion of the packaging bag at a location other than the exposed portion 4. A weak intermolecular force acts on the interface with the outer surface of the lowering means, so that the lowering means adheres. Thereby, the suspending means 5 can be temporarily fixed to the periphery of the packaging bag at a place other than the exposed portion 4. Since this adhesive force is extremely weak compared to the strength of the fixing at the exposed portion 4, it can be easily peeled off with fingers when used. When the packaging bag peripheral portion and the outer surface of the suspending means are made of the same kind of resin having a relatively close melting point, by heating and pressurizing by heat sealing,
Interdiffusion of the resin occurs at the interface, and the resin tends to adhere firmly. In this case, it is desirable to heat seal in accordance with the heat sealing temperature of the resin having the lower melting point.

The heat sealing portion 3 of the packaging bag 1 is
In order to form the exposed portion 4 of the heat-sealable resin layer 11 of the two-layer film, the outer layer 12 and the inner layer 11 of the film on one side are completely cut out as shown in FIG. Alternatively, the exposed portion 4 may be formed by partially cutting out only the outer layer film 12 of one of the films. The exposed portion 4 in FIG. 3 can be formed by cutting out the exposed portion of the outer film 12 in advance before laminating the two-layer film, and then laminating the cut portion with the heat-sealable resin layer 11 serving as the inner layer. Alternatively, the outer film 12 may be partially cut out after the outer film 12 and the heat-sealable resin layer 11 are laminated.

The material constituting the hanging means 5 is not particularly limited as long as it has a heat-sealing resin layer and a heat-sealing property of the multilayer plastic film constituting the bag body. It is possible to use a single-layer film made of a thermoplastic resin of the same or different kind from the material constituting the conductive resin layer, or a multilayer film obtained by laminating such a thermoplastic resin film and another film. As a resin constituting these films, for example, a material used for a multilayer plastic film constituting a bag body can be used. There is no particular limitation on the shape of the suspending means, but when a strip as shown in FIG. 1 or a thread as shown in FIG. 5 is used, the bag provided with the suspending means is not bulky. preferable. In addition, the dimensions of the suspending means and the position of the heat-sealing part are arbitrary, but in order to stably suspend the bag filled with the contents, the length of the bag to which the suspending means is fixed is substantially the same as the total length of the side of the bag. It is preferable that the length is fixed to the packaging bag near both ends of the hanging means.

When the packaging bag is a self-standing bag having a gusset portion at the bottom or a side gusset bag having a gusset portion at the side (see FIG. 4, for example), the hanging means is fixed inside the gusset portion. In addition, it is possible to prevent the suitability for distribution from being lowered due to the bulkiness or the catch by the hanging means during distribution of the packaging bag filled with the contents. Further, when the packaging bag is a bag having a jointed palm portion (see FIG. 10), by fixing the hanging means between the bag body and the jointed palm portion, the distribution suitability of the bag is similarly reduced. Can be prevented.

Next, specific examples of the packaging bag having the hanging means of the present invention will be further described with reference to the drawings, but the present invention is not limited to these specific examples. FIG.
5 and FIG. 5 are perspective views each showing an example in which the present invention is applied to a self-standing bag having a gusset portion at the bottom. In the packaging bag 1 shown in FIG. 4, a gusset 6 is provided at the bottom of the bag, and a band-shaped hanging means 5 extending substantially the entire length of the bottom of the bag is provided inside the gusset 6, and the bag body is heat-sealed near both ends thereof. Is fixed to the exposed portion 4 of the heat-sealing resin layer of the multilayer plastic film. In this packaging bag, after the contents are filled from the top of the bag, the top of the bag is heat-sealed and sealed. However, when the bag is used, the bag is inverted, the suspension means 5 is pulled out, and the bag is suspended by hooking means such as a hook. use. The packaging bag of FIG. 5 has the same configuration as that of the packaging bag of FIG. 4 except that a thread-like piece is used as the suspending means 5 to be fixed inside the gusset portion 6.

FIG. 6 is a perspective view showing an example in which the present invention is applied to a self-standing bag provided with a branch portion having a self-closing spout, and FIG. 7 shows a state in which the bag of FIG. FIG. The self-standing bag 1 is provided with a branch portion 14 having a spout 13 at the tip near the top of the bag body 2. Inside the gusset 6 at the bottom of the bag, a band-shaped suspending means 5 having a heat-sealable resin layer on both outer surfaces is provided to prevent the gusset 6 at the bottom from opening. The gusset part 6 is fixed together with the gusset part 6 to the exposed part 4 of the heat-sealing resin layer of the multilayer plastic film constituting the main body by heat sealing. In this bag, the bag main body 2 and the branch portion 14 are separated by the easily peelable seal portion 10, and a self-closing spout 13 is provided near the distal end of the heat seal portion 17 of the branch portion 14. Bag body 2
Contains liquid contents 16 such as detergent, shampoo, lotion, etc.
Is filled.

When the self-standing bag 1 is used, the branch 1
4 is folded back on the extension of the bag body 2 and the contents 16 filled in the bag body 2 are pressed with the palm of the user.
Then, the easily peelable seal portion 10 that separates the branch portion 14 is destroyed, and both are communicated. Then, the bag 1 is inverted, the hanging means 5 is pulled out, and the bag 1 is hung on the hook 20 or the like. Also,
In this bag, the shape of the tip of the branch part 14 and the spout 13,
By selecting the dimensions, the spout 13 is closed when the bag 1 is simply suspended, so that the contents 16 can be prevented from flowing out. The contents 16 are filled with the spout 13
Can be taken out by pressing the upper part of the spout with a finger to deform and open the spout 13. However, when the pressing is stopped, the spout 3 is closed.

8 and 9 are views showing another example in which the present invention is applied to a self-standing bag. FIG. 8 is a perspective view of the bag, and FIG.
FIG. 4 is a cross-sectional view showing a use state of the bag. The self-standing bag 1 is provided with a branch portion 14 separated from the bag main body 2 by an easily peelable seal portion 10, and a spout 13 formed at the tip of the branch portion 14 is provided with an elastic material such as rubber. Is attached. Inside the gusset 6 at the bottom of the bag, a belt-shaped suspending means 5 is fixed to the exposed portion 4 of the heat-sealable resin layer of the multilayer plastic film constituting the bag body by heat sealing.

This bag is suitably used for injecting an infusion solution, a drug or the like into the body, and the branch portion 14 can contain a powdery or granular drug as needed. When the bag is used, similarly to the bag of FIG. 6, the contents 16 (such as distilled water that dissolves the drug in the branch portion 14) filled in the bag body 2 are pressed to break the easily peelable seal portion 10,
The contents in the main body 2 and the branch portion 14 are mixed to prepare an infusion solution or the like. Next, the bag is inverted and the suspending means 5 is pulled out,
Hang it on the hook 20 or the like. And the plug 15 of the spout 13
Then, a hollow needle 21 connected to an injection needle (not shown) into the human body is pierced by a pipe 22 to inject an infusion or the like. (See Fig. 9)

FIG. 10 is a view showing an example in which the present invention is applied to a packaging bag having a palm joint portion. In the packaging bag 1, a band-shaped suspending means 5 exposes the heat-sealable resin layer of the multilayer plastic film constituting the bag body between the bag-attached portion 7 provided at the center of the bag body 2 and the bag body 2. In part 4,
It is fixed by heat sealing. When the bag 1 is used, the hanging means 5 is pulled out from the joint portion 7 and is hung on a hook or the like.

FIGS. 11 and 12 illustrate the present invention, respectively.
FIG. 13 is a diagram illustrating an example in which the bag is applied to a heat-sealed flat bag, and FIG. 13 is a diagram illustrating a use state of the bag of FIG. The packaging bag 1 shown in FIG. 11 has an exposed portion of the heat-sealable resin layer of the multilayer plastic film constituting the bag body formed on the heat-seal portion 3 at the upper edge of the bag body 2 by the steps described with reference to FIGS. 4, a belt-shaped hanging means 5 is fixed by heat sealing. The packaging bag 1 shown in FIG. 12 is similar to that shown in FIG.
13 has the same structure as that of the packaging bag 1, and as shown in FIG.
Use by hanging at 0 mag.

FIGS. 14 and 15 show the present invention, respectively.
It is a figure which shows the example applied to the flat bag heat-sealed. The packaging bag 1 of FIG. 14 has a belt-shaped hanging means 5 fixed to the heat seal portion 3 on the side edge of the bag body 2 by the same process as the packaging bag of FIG. The packaging bag 1 of FIG. 15 is similar to that of FIG.
It has the same configuration as the packaging bag of No. 4. FIGS. 11 to 15 show examples of three-sided and four-sided sealed bags, but the present invention can also be applied to a two-sided sealed bag using a tubular film manufactured by an inflation method.

In each of the above examples, the hanging means is one of the packaging bags.
Although the description has been given of the one having a length substantially corresponding to the entire length of the side, in the packaging bag of the present invention, the length of the hanging means can be shortened and provided to be shifted to the center or one side of the heat seal portion of the bag. Needless to say. The contents to be filled in the pouch of the present invention are not particularly limited. Juices, various drinks such as soft drinks, infusions, liquid detergents, lotions, liquids such as emulsions, as well as powders and granules And the like.

[0029]

According to the present invention, the present invention makes it possible to easily obtain a packaging bag having hanging means without lowering the suitability for distribution of a pouch filled with contents without increasing the cost. it can. Further, when the present invention is applied to a packaging bag having a gusset portion on the bottom and side portions, and a packaging portion having a gasket sticking portion, and the hanging means is fixed inside the gusset portion or the gasket sticking portion, the packaging bag After filling the contents, when the circulation means, because the hanging means is covered with the gusset portion and the jointed palm, the hanging means is bulky,
It is particularly preferable because it does not catch on. INDUSTRIAL APPLICABILITY The packaging bag of the present invention can heat-seal the periphery of the packaging bag and fix the suspending means at the same time by the conventional heat-sealing process without requiring any special process or equipment. This is a highly valuable invention.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a step of fixing a hanging means to a packaging bag of the present invention by heat sealing.

FIG. 2 is a schematic cross-sectional view of an exposed portion of a heat-sealing resin layer of a film constituting a bag main body, which is formed on a heat-sealed portion of a packaging bag.

FIG. 3 is a schematic cross-sectional view of an exposed portion of a heat-sealing resin layer of a film constituting a bag body, which is formed on a heat-sealed portion of a packaging bag.

FIG. 4 is a diagram showing an example in which the present invention is applied to a self-standing bag having a gusset at the bottom.

FIG. 5 is a view showing another example in which the present invention is applied to a self-standing bag having a gusset portion at the bottom.

FIG. 6 is a view showing an example in which the present invention is applied to a self-standing bag provided with a branch portion having a self-closing spout.

FIG. 7 is a diagram showing a use state of the packaging bag of FIG. 6;

FIG. 8 is a view showing another example in which the present invention is applied to a self-standing bag provided with a branch portion.

FIG. 9 is a view showing a use state of the packaging bag of FIG. 8;

FIG. 10 is a diagram showing an example in which the present invention is applied to a packaging bag having a palm joint portion.

FIG. 11 is a diagram showing an example in which the present invention is applied to a flat bag having four sides heat-sealed.

FIG. 12 is a view showing an example in which the present invention is applied to a flat bag having four sides heat-sealed.

FIG. 13 is a view showing a use state of the packaging bag of FIG. 12;

FIG. 14 is a diagram showing an example in which the present invention is applied to a flat bag heat-sealed on three sides.

FIG. 15 is a diagram showing an example in which the present invention is applied to a flat bag heat-sealed on three sides.

FIG. 16 is a diagram showing an example of a packaging bag provided with a conventional hanging means.

FIG. 17 is a diagram showing an example of a packaging bag provided with a conventional hanging means.

FIG. 18 is a diagram showing an example of a packaging bag provided with a conventional hanging means.

[Brief description of reference numerals]

 1, 21 Packaging bag 2 Bag main body 3, 17, 23 Heat seal portion 4 Exposed portion 5, 25, 26 Hanging means 6 Gusset portion 7 Joint bonding portion 10 Easy peelable seal portion 11 Heat sealable resin layer 12 Other film 13 spout 14 branch part 15 stopper 16 contents 20 hook 21 hollow needle 22 pipe 27 perforation

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichiro Kunihiro 22-4 Okazawacho, Hodogaya-ku, Yokohama-shi, Kanagawa Prefecture F-term in the Toyo Seikan Group General Research Institute (reference) 3E064 AA03 AA04 AA05 AA08 AB13 AB23 BB03 BC18 HL09 HS10 3E067 AA03 AA05 AB26 AB81 BA12A BB14A BB25A CA24 EA07 EA08 EA09 EE15 EE40 FB07 3E075 AA04 BA47 CA01 DD21 DD42 DD43 DE06 GA05

Claims (11)

[Claims] 1. A packaging bag formed by heat-sealing a multilayer plastic film, wherein a suspending means having a heat-sealing property is formed on a heat-sealing portion of the bag main body. A packaging bag having hanging means fixed to an exposed portion of a resin layer by heat sealing. 2. A packaging bag having hanging means according to claim 1, wherein a thread-shaped or band-shaped hanging means is used as the hanging means. 3. A packaging bag having hanging means according to claim 1, wherein the hanging means is fixed to the packaging bag near both ends. 4. The hanging device according to claim 1, wherein the packaging bag is a self-standing bag having a gusset portion at the bottom, and the hanging means is fixed inside the gusset portion. A packaging bag having a lowering means. 5. The gusseted bag according to claim 1, wherein the packaging bag is a side gusseted bag having a gusseted portion on a side portion, and the hanging means is fixed inside the gusseted portion. Packaging bag having hanging means. 6. The packaging bag according to claim 1, wherein the packaging bag is a bag having an abutment portion, and the hanging means is fixed between the bag body and the abutment portion. Packaging bag having hanging means. 7. The bag according to claim 1, wherein the packaging bag is a bag in which two, three or four sides of the bag are sealed, and the suspending means is fixed on a heat seal portion of the bag. A packaging bag having the hanging means according to any one of claims 3 to 7. 8. The apparatus according to claim 1, wherein the suspension means has a length extending over substantially the entire length of one side of the bag.
A packaging bag having the hanging means according to any one of claims 7 to 10. 9. A packaging bag having hanging means according to claim 1, wherein the packaging bag has a self-closing spout. 10. An exposed portion of a heat-sealable resin layer is formed on a portion of a multilayer plastic film constituting a bag body, which is to be heat-sealed, and heat-sealing of a packaging bag and fixing of hanging means are simultaneously performed. A method for manufacturing a packaging bag having the hanging means according to claim 1. 11. A heat-sealing resin layer is provided on an inner layer of a multilayer plastic film constituting a bag body, and an exposed portion of the heat-sealing resin layer is formed by cutting out the multilayer plastic film on one side of a portion to be heat-sealed. A method for manufacturing a packaging bag having the hanging means according to claim 10.