JP7394808B2 - Gusset bag for miso storage - Google Patents

Description

The present invention relates to a packaging bag for packaging (storing) miso, which is a semi-solid substance with high viscosity. Specifically, the present invention relates to a packaging bag (so-called gusset bag) for storing miso that has gussets on both left and right sides. It is related to.

As a container for long-term storage of miso, which is a semi-solid substance with high viscosity, a synthetic resin case with a lid is often used from the viewpoint of ease of storage and removal. Furthermore, cases made of transparent synthetic resin are often used as containers for miso so that the state of the contents can be confirmed (Patent Document 1).

Utility Model Publication No. 7-26392

However, in the conventional storage container for miso such as the one disclosed in Patent Document 1, in order to fill and display the contents, in addition to the case body and the lid, the inside of the container must be sealed at the opening of the case body. Seal members are required. In addition, in order to display the product name and properties of the contents, it is necessary to separately create a sticker or the like displaying these and attach it to the case. Therefore, it is difficult to package the conventional storage container for miso at low cost because the number of parts required for packaging increases.

The purpose of the present invention is to solve the above-mentioned problems of the conventional storage container, to easily package (storage) and take out miso, which is a semi-solid substance with high viscosity, and to package miso at low cost. To provide a gusset bag for storing miso, which can be stably erected with miso stored therein, and is easy to store in a refrigerator.

The invention described in claim 1 of the present invention provides a gusset bag for storing miso, which is formed into a bag shape with folding material sandwiched between the left and right sides and the lower side of the front and back two body materials using a synthetic resin film. This is a gusset bag for storing miso containing miso, the inside of which is filled with miso , and the outer periphery of the lower folding material is heat-sealed to the bottom edge of each body material on the front and back and to the bottom edge of each folding material on the left and right sides. In addition, almost the entire left and right edges of the front body material are heat-sealed to the front edges of the left and right folding materials, respectively, and the left and right edges of the back body material Almost the entire case is heat-sealed to the rear edge of each left and right folding material, and the synthetic resin films that make up the front and back body materials, both left and right sides, and the lower folding material are sealed with a nylon layer. It is a multilayer film formed by laminating a thermal adhesive layer on one side of a base layer formed by laminating a PET layer on the outside of , the multilayer film is folded in half so that the thermal adhesive layer faces outward , and the inside is filled with miso, and the left and right folding materials are arranged inwardly at the upper edge. By heat-sealing the front and back body materials in a state of being folded in half, a band-shaped head seal portion of a certain height is formed. At the center of the edge, the front and back shell materials are heat-sealed at a constant height, and on the left and right sides near the top edge, the front and back shell materials are heat-sealed at the same height as the heat-sealed portion at the center of the top edge. At the height of A scheduled opening position is printed at a predetermined height position above the top surface of the miso and below the head seal part, and the scheduled opening position is printed on the front and back body materials and the left and right sides. It is characterized by being printed in a circumferential manner across the folded part.

The invention set forth in claim 2 is the invention set forth in claim 1 , in which the synthetic resin films constituting the front and back body materials, the left and right sides, and the lower folding material all have gas barrier properties. It is characterized by this.

The miso storage gusset bag according to claim 1 can easily store (fill) miso, which is a highly viscous semi-solid material, through the large opening at the top (the miso can be discharged). (It is possible to store the nozzle etc. without getting caught). In addition, it can be easily sealed by heat-sealing the upper edge. Moreover, it is formed into a bag-like (gusset-shaped) shape with folded parts on the left, right and bottom sides using a synthetic resin film of a predetermined thickness, so when filled with miso, the filled part becomes approximately rectangular parallelepiped and stands up in a stable state. This allows for efficient storage in a small space inside a store or refrigerator. Furthermore, when filled with miso, the folded portion at the bottom expands to form a rectangular bottom surface, making it possible to scrape out the miso without leaving any residue. Furthermore, since the product name and properties of the contents can be printed on the surface of the body material or insert material, it is possible to package the product at low cost with a small number of parts.

Further, in the miso storage gusset bag according to claim 1 , since the synthetic resin film constituting the body material and the folding material is a laminated film containing a PET layer, the body material and the folding material have high strength and are water resistant. Because miso is also excellent, miso can be stored for an extremely long period of time. Moreover, since it has excellent dimensional stability, it is possible to make bags with a high yield when continuously making bags from a roll of film using a bag making machine.

In the storage container for miso according to claim 2 , since the synthetic resin film constituting the body material and the insert material has gas barrier properties, the quality of the miso can be maintained for a long period of time.

FIG. 2 is an explanatory view showing a gusset bag for storing miso (a is a front view, b is an end view taken along the line AA in a, and c is an end view taken along the line BB in a). It is an explanatory view (perspective view) showing a gusset bag for storing miso filled with miso and sealed. It is an explanatory view (left side view) showing a miso storage gusset bag filled with miso and sealed. It is an explanatory view showing left and right folding materials and bottom folding material for forming a miso storage gusset bag (a is a front view, b is an end view of the left side near the lower end of the left folding material (i.e. , a), and c is a perspective view of the left folding material and the bottom folding material separated. It is an explanatory view (perspective view) showing the use state (state filled with miso) of the miso storage gusset bag (the right figure shows the state opened at the planned opening position). FIG. 6 is an explanatory diagram showing a modification example of the folding material (a is a front view, and b is a left side view of the broken line portion in a).

Hereinafter, one embodiment of the miso storage gusset bag according to the present invention will be described in detail. The miso storage gusset bag according to the present invention is made of a flexible synthetic resin film. The synthetic resin film here refers to a laminated film made by laminating synthetic resin films, a laminated film made by laminating a synthetic resin film and paper, aluminum foil, etc., a coextruded film, and the like. The synthetic resin film used in the gusset bag for storing miso must have thermal adhesion (thermal fusibility) on at least one side (inner surface). Moreover, it is preferable that the miso storage gusset bag has gas barrier properties in order to maintain the quality of the miso. Specifically, the oxygen permeability at 20° C. and 65% RH is preferably 20 cc/m ² ·day · atm or less, more preferably 10 cc/m ² ·day · atm or less, and 1 cc/m ² ·day - It is more preferable that it is below ATM.

As such a synthetic resin film, for example, a multilayer film including a barrier layer and a thermal adhesive layer can be used. The barrier layer is an ethylene-vinyl alcohol copolymer film, the barrier layer is an ethylene-vinyl alcohol copolymer film, or an ethylene-vinyl alcohol copolymer film or a polymethaxylylene adipamide film with nylon or the like. Mention may be made of coextruded films. Further, a film made of polyester or the like on which silicon oxide (silica) or aluminum oxide (alumina) is vapor-deposited, aluminum foil or a film made of polyester or nylon on which aluminum is vapor-deposited may be used. As the thermal adhesive layer, for example, a film of polyethylene, unstretched polypropylene, or the like can be used.

Further, in the miso storage gusset bag according to the present invention, the synthetic resin films that are the constituent members (the front and back body materials, the left and right sides, and the lower folding materials) are preferably laminated films containing a PET layer, If the base layer (or base film) other than the thermoadhesive layer of the synthetic resin film is a PET layer laminated on the outside of a nylon layer, it will simultaneously exhibit the strength of nylon and the waterproofness and dimensional stability of PET. This is more preferable because the gusset bag for storing miso becomes suitable for storing miso. More preferable examples of such synthetic resin films include the following laminated films (in addition, films made of other resins may be sandwiched or laminated in the following laminated films as necessary). ).
a. A laminated film formed by laminating a biaxially stretched nylon film laminated with PET, an ethylene-vinyl alcohol copolymer film, and a linear low-density polyethylene film b. A laminated film formed by laminating a PET film, a coextruded film of nylon and polymethaxylylene adipamide, and a linear low-density polyethylene film c. A laminated film formed by laminating a PET film, a coextruded film of nylon and ethylene vinyl alcohol copolymer, and a linear low-density polyethylene film d. A laminated film formed by laminating a silicon oxide deposited PET film, a nylon film, and a linear low-density polyethylene film e. Laminated film formed by laminating aluminum oxide vapor-deposited PET film, nylon film, and linear low-density polyethylene filmf. Laminated film made by laminating PET film, ethylene-vinyl alcohol copolymer film, and linear low-density polyethylene film.

Further, the thickness (total thickness) of the synthetic resin film needs to be within the range of 70 μm or more and less than 140 μm. If the thickness of the synthetic resin film is less than 70 μm, the strength of the synthetic resin film will be insufficient. In addition, since the synthetic resin film loses its "stiffness", the miso storage gusset bag tends to swell when filled with miso, causing slight wrinkles and slack on the outer periphery, resulting in an unattractive appearance. This is undesirable because it reduces the display effect at stores. On the other hand, if the thickness of the synthetic resin film exceeds 140 μm, it is not preferable because it becomes difficult to cut the gusset bag for storing miso with scissors at the gusset part, etc. In addition, the thickness of the synthetic resin film is more preferably 70 μm or more and less than 110 μm.

In addition, when using the laminated films a to f described above (paragraph 0017), adjusting the thickness of each layer as follows will improve the strength of the film, the strength of the strain, and the ease of cutting with scissors. This is preferable because both the ease of cutting becomes good (in the following description, "numerical value" to "numerical value" μm mean "numerical value" μm or more and "numerical value" μm or less).
a. Biaxially stretched nylon film laminated with PET (12-18 μm) / Ethylene-vinyl alcohol copolymer film (9-15 μm) / Linear low-density polyethylene film (75-85 μm)
b. PET film (9-15 μm) / Co-extruded film of nylon and polymethaxylylene adipamide (12-18 μm) / Linear low-density polyethylene film (75-85 μm)
c. PET film (9-15 μm) / coextruded film of nylon and ethylene vinyl alcohol copolymer (12-18 μm) / linear low-density polyethylene film (75-85 μm)
d. Silicon oxide vapor-deposited PET film (9-15 μm) / Nylon film (12-18 μm) / Linear low-density polyethylene film (75-85 μm)
e. Aluminum oxide vapor-deposited PET film (9-15 μm) / Nylon film (12-18 μm) / Linear low-density polyethylene film (75-85 μm)
f. PET film (9-15μm) / Ethylene-vinyl alcohol copolymer film (9-15μm) / Linear low-density polyethylene film (75-85μm)

Moreover, the gusset bag for storing miso according to the present invention is manufactured by forming the above-described synthetic resin film into a gusset bag shape. That is, the left and right sides and lower part (bottom) of the front and back trunk materials are laminated with two-folded inserts sandwiched between them, and the sides and lower part of the laminate are heat-sealed (thermal fusion). Manufactured by In addition, in the miso storage gusset bag according to the present invention, substantially the entire left and right edges of the front body material are heat-sealed to the front edges of the left and right inserts, respectively, and It is necessary that substantially the entirety of the left and right edges of the backside body material be heat-sealed to the rear edges of the left and right folded pieces, respectively. By configuring the miso storage gusset bag in this way, the opening at the top can be opened wide, making it easier to store (fill) the miso contents and scrape out the miso. It becomes possible to make it easy.

Each heat seal (forming side seals, bottom seals, etc.) and cutting can be performed as a series of processes using a gusset bag making machine, or can be performed as a batch (non-series) process. It is also possible to do so. Note that the heat sealing temperature is not particularly limited, but when using a synthetic resin film made of polyethylene (linear low-density polyethylene) film as a heat-adhesive film, it is recommended that the temperature be within the range of 170 to 210°C. preferable.

Further, the miso storage gusset bag according to the present invention needs to be provided with fold-in portions (so-called gussets) on both left and right sides, and also with a fold-in portion on the lower side (bottom). By using such a miso storage gusset bag, the miso storage gusset bag becomes highly self-reliant and can be stored in a refrigerator or displayed on a product shelf with just the miso storage gusset bag. becomes.

In addition, the miso storage gusset bag is generally rectangular in shape when viewed from the front, but its size is not particularly limited, and both the height and width may be adjusted as necessary within the range of approximately 50 to 350 mm. I can do it. In addition, the miso storage gusset bag has fold-in portions (parts folded inward in half) on both the left and right sides and the bottom (bottom); ) is also not particularly limited, and can be adjusted as necessary within the range of approximately 15 to 175 mm.

Further, in the miso storage gusset bag according to the present invention, the ratio of the width b of each left and right folding material (that is, twice the width of the folded part) to the width a of the front and back body materials (left and right width) (i.e., b/a) is preferably 0.6 or more and less than 1.0 (see FIGS. 1 to 3). If the value of b/a is less than 0.6, the thickness of the front and back of the miso storage gusset bag filled with miso will be significantly thinner than the left and right width, and if the miso is unevenly distributed inside the bag, This is not desirable as it can easily fall down. On the other hand, if the value of b/a exceeds 1.0, the left and right folding materials will interfere at the center (the center in the width direction), making bag making difficult, which is not preferable. Also, when the height of miso when filled with miso is "m", the ratio of the height m of miso to the width (left and right width) a of the body material on the front and back (that is, m/a) is 0. If it is .7 or more and 1.5 or less, it is preferable because the miso can be stably maintained in an upright state when taken out.

In addition, it is preferable that the miso storage gusset bag has a scheduled opening position set at a predetermined height position where the bag is cut horizontally and opened. In other words, the position to be cut (opened) is indicated by printing dashed lines or scissor marks, etc., or there are notches, notches, or multiple cuts at the cutting position on the side that will trigger horizontal cutting. If an easy-to-open means such as a pore is provided, or if multiple cutting lines, through or non-through pores, perforations, etc. are provided continuously in a horizontal straight line so that it can be cut by hand. preferable. In addition, it is preferable that the planned opening position is set at an arbitrary height position above the top surface of the miso filled inside.

Hereinafter, the miso storage gusset bag according to the present invention will be described in more detail based on Examples, but the present invention is not limited to the embodiments of such Examples in any way, and the scope of the present invention does not depart from the spirit of the present invention. It is possible to change it as appropriate. In addition, the methods for evaluating physical properties and characteristics in Examples and Comparative Examples are as follows.

<Stability when removing miso>
Approximately 750g of miso (“Ryotei no Aji” manufactured by Marukome Co., Ltd.) was stored (filled) at room temperature, placed on a horizontal surface, and the miso was scooped out three times with a spoon (15cc measuring spoon). The stability of the storage gusset bag was sensory evaluated on the following three levels.
○: Maintained standing vertically without wobbling △: Occasionally it wobbled slightly depending on the remaining amount of miso or unevenness, but maintained an approximately vertical state ×: Remaining amount of miso or unevenness Due to this, I often found myself wobbling and unable to stand up stably.

<Ease of cutting>
A sensory evaluation was conducted on the ease of cutting using scissors (small craft scissors) at the planned opening position C of a miso storage gusset bag filled with miso and sealed, using the following three levels. .
○: Can be cut without applying much force △: Cannot be cut without applying considerable force ×: Cannot be cut with hand force

[Example 1]
<Manufacture of gusset bags for storing miso>
Using a gusset bag-making machine, a gusset bag for storing miso according to Example 1 having folded portions on both left and right sides and on the bottom was formed by the following steps a to c.
a. Arranging two long synthetic resin films (i.e., front and back body materials) each having thermal adhesive properties on one side so that their thermal adhesive surfaces face each other b. A folding material (made by folding the same synthetic resin film as the body material in half) to form left and right folded parts between the two arranged synthetic resin films (i.e., the front and back body materials). , a folding material (made by folding the same synthetic resin film as the body material in half) for forming the lower (bottom) folding part is continuously sandwiched and laminated; c. At the same time as cutting the above laminate into a predetermined size (length x width = 220 mm x 105 mm), cut the outer periphery of the laminate (both left and right edges and bottom edge) at a predetermined temperature (approximately 190°C). heat seal

In the production of the above-mentioned miso storage gusset bag, a biaxially stretched nylon film laminated with PET with a total thickness of 15 μm (base A transparent film made by laminating an ethylene-vinyl alcohol copolymer film with a thickness of 12 μm on top of the film, and then a linear low-density polyethylene film (thermal adhesive film) with a thickness of 80 μm on top of that. A synthetic resin film (multilayer film with a total thickness of 107 μm) was used. Note that in the base film, the nylon layer is thicker than the PET layer.

<Configuration of miso storage gusset bag>
1 and 2 show the produced gusset bag P for storing miso of Example 1, and the gusset bag P for storing miso consists of two substantially rectangular body members 2a and 2b on the front and back, and their The folding members 3a, 3b sandwiched between the left and right edges of the body members 2a, 2b and the folding member 4 at the bottom form a substantially rectangular shape (elongated rectangular shape) when viewed from the front. It has a size of length x width = 220 mm x 105 mm. The front and back body members 2a and 2b are arranged with the linear low-density polyethylene film (thermal adhesive film) layer facing inside.

Moreover, FIG. 3 shows the folding members 3a and 3b on both the left and right sides of the miso storage gusset bag P, and the folding member 4 at the bottom. For each of the left and right folding materials 3a and 3b, a vertically long strip of 95 mm in width made of the above-mentioned synthetic resin film is folded into a predetermined width (approximately 47.5 mm) so that the linear low-density polyethylene film layer faces outward. It has a structure that is folded in half (width). These folding materials 3a and 3b are arranged with the linear low-density polyethylene film layer facing the back surfaces of the front and back body materials 2a and 2b.

In addition, the lower end portions of the left and right folding materials 3a and 3b are each bent diagonally inward so that the cross section (vertical cross section) is M-shaped, and the bent portions F, Inside, the left and right ends of the bottom folding material 4, which is made by folding a horizontally long band-shaped body with a width of 95 mm in two, are sandwiched. The bottom folding material 4 has a structure in which it is folded in half to a predetermined width (approximately 47.5 mm width) so that the linear low-density polyethylene film layer faces outward. The body members 2a, 2b are stacked on the outside of the front and back of the left and right folding members 3a, 3b and the bottom folding member 4.

Side seal portions 5, 5, . . . having a width of about 8 mm are formed by heat sealing the edge portions of the laminated portions of the body materials 2a, 2b and the folding materials 3a, 3b. In the upper part of the side seal parts 5, 5,... However, they are fused together. On the other hand, in the portion near the lower end of the side seal portions 5, 5..., on the outside of the bent portion F having an M-shaped cross section, The back surface of the body material 2b and the back surface of the folding materials 3a and 3b are respectively fused together, and inside the bent portion F, the back surface of the folding materials 3a and 3b and the back surface of the bottom folding material 4 are fused together. Matching.

In addition, bottom seal parts 15, 15 are formed by heat-sealing the part near the lower edge of the folded part (the part where the folded material 4 is sandwiched) at the bottom into a band shape of a certain height (approximately 8 mm). . In these bottom seal parts 15, 15, the back surface of the front trunk material 2a and the back surface of the folding material 4, and the back surface of the back trunk material 2b and the back surface of the folding material 4 are fused to each other.

In the miso storage gusset bag P, the outer periphery (near the periphery) of the folding material 4 at the bottom is heat-sealed to the lower edges of the front and back body materials 2a, 2b and to the lower edges of each of the left and right folding materials 3a, 3b. It is in a state of In addition, the entire left and right edges of the front body material 2a are heat-sealed to the front edges of the left and right folding materials 3a and 3b, respectively, and the back body material 2b is The entire left and right edges are heat-sealed to the rear edges of the left and right folding members 3a and 3b, respectively.

Furthermore, at a predetermined height position (approximately 30 mm below the upper edge) of the miso storage gusset bag P made as described above, a broken line C ( The expected opening position) is displayed by printing. Note that the broken line C is printed in a circumferential manner so as to cross the folded portions 3a, 3b and the trunk materials 2a, 2b (see FIGS. 1 and 2).

<Evaluation of miso storage gusset bag>
Miso (750 g) was filled through the opening O (the part that was not heat-sealed between the left and right side seal parts 5, 5) at the upper edge of the gusset bag P for storing miso of Example 1 described above. The filling was carried out so that the surface of the miso was generally flat. The height (m) of the miso after filling was approximately 90 mm. In addition, when filling with miso, since the left and right folding materials 3a and 3b were expanded to form a large opening, it was possible to fill the miso very easily from the opening O. After filling with miso, the folding materials 3a and 3b are folded back and heat sealed in the opening O at the upper edge, thereby fusing the body materials 2a and 2b at the center of the opening O. On the left and right sides, the body materials 2a, 2b and the opposing folding materials 3a, 3b are fused together to form a band-shaped head seal portion at a constant height (approximately 5 mm to 10 mm), thereby creating a gusset bag for storing miso. P was sealed. Note that the head seal portion was formed so as to overlap the left and right side seal portions 5, 5.

When miso is stored (filled) in the miso storage gusset bag P as described above, the folding materials 3a and 3b expand to form rectangular side surfaces, and the folding material 4 expands near the bottom to form a rectangular bottom surface ( It was possible to form a horizontal width of 105 mm x front and back width of 95 mm, and to stand it up in a stable state. Then, using the miso storage gusset bag P (in which miso was stored), "stability when taking out miso" and "ease of cutting" were evaluated using the above-described method. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag P.

[Example 2]
When manufacturing the gusset bag for storing miso, a biaxially stretched nylon film (base) laminated with PET with a total thickness of 15 μm, the same as in Example 1, was used as the folding material for forming the front and back body materials, left and right folded parts, and the lower folded parts. A transparent film made by laminating a 12 μm thick ethylene-vinyl alcohol copolymer film on top of the 50 μm thick linear low density polyethylene film (thermal adhesive film). A synthetic resin film (multilayer film with a total thickness of 77 μm) was used. Other than that, a miso storage gusset bag of Example 2 was obtained in the same manner as in Example 1. Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

[Example 3]
When manufacturing the gusset bag for storing miso, a biaxially stretched nylon film (base) laminated with PET with a total thickness of 15 μm, the same as in Example 1, was used as the folding material for forming the front and back body materials, left and right folded parts, and the lower folded parts. A transparent film made by laminating a 12 μm thick ethylene-vinyl alcohol copolymer film on top of the film, and then a 100 μm thick linear low-density polyethylene film (thermal adhesive film) on top of that. A synthetic resin film (multilayer film with a total thickness of 127 μm) was used. Other than that, a miso storage gusset bag of Example 3 was obtained in the same manner as in Example 1. Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

[Example 4, 5]
When manufacturing the miso storage gusset bag, the width (expanded width) a of the left and right folding materials 3a and 3b and the width (expanded width) b of the bottom folding material 4 were changed to 50 mm and 70 mm, respectively. Other than that, the miso storage gusset bags of Examples 4 and 5 were obtained in the same manner as in Example 1.
Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The height of miso in the miso storage gusset bag of Example 4 filled with miso was 210 mm (m/a = 2.0), and the height of the miso in the miso storage gusset bag of Example 5 filled with miso was 210 mm (m/a = 2.0). The height of the miso was 130 mm (m/a=1.3). The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

[Example 6]
When manufacturing gusseted bags for storing miso, a 12 μm thick polymetal film was used as a folding material to form the front and back body materials, left and right folded parts, and the lower folded portions. A transparent synthetic resin film (total thickness: 107 μm) made by laminating a co-extruded film of silylene adipamide and nylon, and then laminating a linear low-density polyethylene film (thermal adhesive film) with a thickness of 80 μm on top of the co-extruded film of silylene adipamide and nylon. multilayer film) was used. Other than that, a miso storage gusset bag of Example 6 was obtained in the same manner as in Example 1. Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

[Example 7]
When manufacturing gusseted bags for storing miso, 12 μm thick ethylene film was placed on a 15 μm thick nylon film (base film) as a folding material to form the front and back body materials, left and right folded parts, and bottom folded parts. A transparent synthetic resin film (multilayer film with a total thickness of 107 μm) made by laminating a vinyl alcohol copolymer film and further laminating a linear low-density polyethylene film (thermal adhesive film) with a thickness of 80 μm on top of the vinyl alcohol copolymer film. It was used. Other than that, a miso storage gusset bag of Example 7 was obtained in the same manner as in Example 1. Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

[Comparative example 1]
When manufacturing the gusset bag for storing miso, a biaxially stretched nylon film (base) laminated with PET with a total thickness of 15 μm, the same as in Example 1, was used as the folding material for forming the front and back body materials, left and right folded parts, and the lower folded parts. A transparent film made by laminating an ethylene-vinyl alcohol copolymer film with a thickness of 12 μm on top of the film, and then a linear low-density polyethylene film (thermal adhesive film) with a thickness of 150 μm on top of that. A synthetic resin film (multilayer film with a total thickness of 177 μm) was used. Other than that, a miso storage gusset bag of Comparative Example 1 was obtained in the same manner as in Example 1. Then, miso was stored in the obtained miso storage gusset bag, and the miso storage gusset bag after storing the miso was used to improve the "stability when taking out the miso" and the "ease of cutting" in the same manner as in Example 1. was evaluated. The evaluation results are shown in Table 1 along with the properties of the miso storage gusset bag.

From Table 1, it can be seen that the miso storage gusset bags of Examples 1 to 6 were all good in both stability when taking out the miso and ease of cutting. On the other hand, it can be seen that the gusset bag for storing miso of Comparative Example 1, in which the thickness of the synthetic resin film is larger than the upper limit of the claimed range, is inferior in ease of cutting.

<Example of modification of miso storage gusset bag>
The configuration of the miso storage gusset bag according to the present invention is not limited to the aspects of each of the above-described embodiments, and may vary depending on the material, size (height, , width, gusset width, gusset structure, etc.) can be changed as necessary without departing from the spirit of the present invention.

For example, as in the above embodiment, the synthetic resin film for forming the body material and the folded portion is a PET film or a nylon film, an ethylene-vinyl alcohol copolymer film, and a polyethylene film (linear low-density polyethylene film). The material is not limited to a layered layer, but may be a layered layer of synthetic resin films made of other materials, or a layered layer of metal foil, metal-deposited film, or the like. As the synthetic resin film, as in the above embodiment, a laminated film including a biaxially stretched nylon film laminated with PET, an ethylene-vinyl alcohol copolymer film, and a PET film such as a linear low-density polyethylene film was used. In this case, the strength of the body material and folding material is good, and manufacturing is easy. Furthermore, since it has excellent oxygen barrier properties and dimensional stability, it is suitable as a package for miso.

In addition, the method for installing the lower (bottom) folding part is as in the above embodiment, by bending the parts near the lower edges of the left and right folding members diagonally inward so that the vertical cross section becomes M-shaped. The method is not limited to the method of sandwiching the left and right ends of the bottom folding material inside those bent parts, but as shown in Figure 6, by folding a long belt-shaped synthetic resin film in a predetermined manner, it is possible to It is also possible to adopt a method of forming the folding material and the bottom folding material together (forming them in a continuous manner).

Since the gusset bag for storing miso of the present invention exhibits the excellent effects as described above, it can be suitably used as a bag for packaging miso, which is a semi-solid substance with high viscosity.

P... Gusset bag for storing miso 2a, 2b... Body material
3a, 2b...folding part (left and right)
4. Fold-in part (bottom)
5...Side seal part 15...Bottom seal part C...Planned opening position

Claims (2)

A miso storage gusset containing miso, which is made by filling miso into a bag-shaped miso storage gusset bag made of synthetic resin film with inserts sandwiched between the left and right sides and the bottom of two body materials. It is a bag ,
The outer periphery of the lower folding material is heat-sealed to the bottom edge of each body material on the front and back sides and to the bottom edge of each left and right folding material, and
Almost the entire left and right edges of the front body material are heat-sealed to the front edges of the left and right folded pieces, respectively, and almost the entire right and left edges of the back body material are heat-sealed to , are heat-sealed near the rear edges of each left and right folding material, respectively.
The synthetic resin films that make up the front and back body materials, the left and right sides, and the lower folding material are multilayer films made by laminating a thermal adhesive layer on one side of a base layer made of a PET layer laminated on the outside of a nylon layer. , the thickness of each of them is 70 μm or more and 140 μm or less, and
Each of the left and right folding materials is obtained by folding the multilayer film in half so that the thermal adhesive layer faces outward,
In addition, with the inside filled with miso, the left and right folding materials are folded in half in an inward mountain-fold shape and heat-sealed together with the front and back body materials at the upper edge, so that a certain level of A high band-shaped head seal is formed,
Due to the formation of the head seal, the front and back shell materials are thermally fused at a constant height at the center of the upper edge, and the front and back shell materials are bonded to each other at a constant height at the center of the upper edge. , is thermally fused to the outer surfaces of the left and right folding materials facing each other at the same constant height as the heat fused portion at the center of the upper edge, and the inner surfaces of the left and right folding materials are not heat fused to each other. At the same time as being separated from each other,
A scheduled opening position is printed at a predetermined height position above the top surface of the filled miso and below the head seal part, and the scheduled opening position is printed on the front and back sides of the body. A gusset bag for storing miso containing miso, characterized in that it is printed in a circumferential manner across the material and the left and right folded parts. The gusset bag for storing miso containing miso according to claim 1, wherein the synthetic resin films constituting the front and back body materials, the left and right sides, and the lower folding materials all have gas barrier properties.

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