JP7388095B2 - pouch - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pouch with a simple structure for storing contents in an attractive manner.

Conventionally, in various product groups such as cosmetics and writing instruments, there are many cylindrical products. Unlike other products, products that are long in one direction, such as cylinders, require some ingenuity to accommodate. Further, in order to make the product stand out, cylindrical products such as this are intentionally displayed with the long direction facing the vertical direction.

Blister packs and shrink packaging are often used as packaging means for such cylindrical products. Furthermore, a packaging container has been proposed in which a cylindrical product can be fixed in a predetermined position by processing a single sheet (see Patent Document 1).

Japanese Patent Application Publication No. 2005-186958

However, conventional packaging means have a problem in that they tend to be expensive due to their complex structures.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pouch that has a simple structure and is capable of accommodating contents that extend in one direction in a good manner.

In order to solve the above problems, the present invention
A pouch having at least a front surface, a back surface, and a bottom surface, a top edge, a bottom edge opposite to the top edge, and a first side edge and a second side edge extending between the top edge and the bottom edge. ,
a first side seal portion is formed to include the first side edge;
a second side seal portion is formed to include the second side edge;
The bottom surface includes a first bottom seal part formed to extend in a direction along the first side edge and the second side edge, and a second bottom seal part formed to extend in a direction along the upper edge and the lower edge. It is joined to the inner surface side of the front surface and the inner surface side of the back surface by a bottom seal part,
When the bottom surface is folded in a direction along the lower edge, a folded portion formed on the bottom surface is formed on the lower edge side,
The folded portion of the bottom surface is formed at a position separated from the lower edge by a predetermined distance or more,
The present invention provides a pouch characterized in that a support seal portion is formed on the upper edge side of the bottom surface to join the front surface and the back surface at at least one place and support the contents.

Furthermore, the pouch of the present invention has
When the distance from the upper edge to the lower edge is L1, and the distance from the folded part to the lower edge when the bottom is folded is L2, the ratio of distance L2 to distance L1 is distance L2/distance L1. It is characterized by being 0.1 or more and 0.5 or less.

Furthermore, the pouch of the present invention has
The support seal portion includes a first support seal portion close to the first side edge and a second support seal portion close to the second side edge.

Furthermore, the pouch of the present invention has
When the distance from the upper end of the first support seal part and the second support seal part, which is closer to the upper edge to the upper edge, is L3, the distance L3 is the ratio of the distance L3 to the distance L1. / is formed at a position where the distance L1 is 0.2 or more and 0.4 or less.

Furthermore, the pouch of the present invention has
The length of the first support seal portion and the length of the second support seal portion in the direction connecting the first side edge and the second side edge are equal to each other.

Furthermore, the pouch of the present invention has
The distance from the upper edge side end of the first support seal part to the upper edge and the distance from the upper edge side end of the second support seal part to the upper edge are equal to each other. do.

Advantageous Effects of Invention According to the present invention, it is possible to provide a pouch that has a simple configuration and can accommodate contents that extend in one direction in a good manner.

FIG. 1 is a front view showing a pouch according to an embodiment of the present invention. FIG. 1 is an exploded view showing a film structure constituting a pouch according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the pouch shown in FIG. 1. FIG. FIG. 3 is a front view of the pouch with contents accommodated therein. It is a front view which shows the pouch based on the modification of this invention. It is a front view which shows the pouch based on the modification of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a pouch according to an embodiment of the present invention. Moreover, FIG. 2 is an exploded view showing a film structure constituting a pouch according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of the pouch shown in FIG. 1. Of these, FIG. 3(a) is a cross-sectional view corresponding to the AA line in FIG. 1, and FIG. 3(b) is a cross-sectional view corresponding to the BB line in FIG. c) is a sectional view taken along line CC in FIG. The pouch of this embodiment shown in FIG. 1 shows the pouch in a state before the contents are stored (in a state in which the contents are not stored). The pouch of this embodiment has a rectangular shape when viewed from the front. Furthermore, the pouch of this embodiment has a bottom portion formed of the bottom film 3 at a slightly lower position in the vertical direction. In this embodiment, the concept of a rectangle includes not only a rectangle with four right-angled corners, but also a rectangle whose four corners are chamfered to form an outwardly convex arc shape. In the present invention, the concept of a pouch includes not only a pouch in a state in which no contents are stored, but also a pouch in a state in which contents are stored.

＜＜Components＞＞
As shown in FIG. 2, the pouch of this embodiment includes three members (films): a substantially rectangular front film 1, a back film 2 having the same shape as the front film 1, and a substantially rectangular bottom film 3. It is configured. The front surface, back surface, and bottom surface of the pouch are each composed of a front film 1, a back film 2, and a bottom film 3. The pouch of this embodiment is formed by sealing (thermal fusion) three films, a front film 1, a back film 2, and a bottom film 3, at predetermined locations.

As shown in FIG. 2, the bottom film 3 is folded in two and divided into a first portion 3f and a second portion 3g with the folded portion 3a as a boundary. The portions of the first portion 3f and the second portion 3g that face the folded portion 3a are end portions 3h, 3h. In addition, when standing with the lower edge 5 facing downward, the length of the first portion 3f and the second portion 3g in the direction perpendicular to the folded portion 3a may be 35 mm or more in order to stabilize the independence. can.

<<Each seal part>>
As shown in FIG. 1, the pouch of this embodiment includes a first side seal part 11a, a second side seal part 11b, a first bottom seal part 12a, a second bottom seal part 12b, and a first support. It includes a seal portion 13a and a second support seal portion 13b, and an opening 22 is formed in the upper portion including the upper edge 4. In FIG. 1, each seal portion is indicated by diagonal hatching. The first side seal part 11a and the second side seal part 11b are formed by sealing and joining the front film 1 and the back film 2. The first side seal part 11a is formed to include the first side edge 6 (the left end in FIG. 1), and the second side seal part 11b is formed to include the second side edge 7 (the right end in FIG. 1). is formed to contain. The seal width of the first side seal portion 11a and the second side seal portion 11b is preferably 5 mm or more and 15 mm or less. Note that the seal width is the width in the direction perpendicular to the direction in which the seal portion extends.

The bottom seal part 12 is a seal part formed between the folding part 3a and the end part 3h, and is composed of a first bottom seal part 12a and a second bottom seal part 12b. The first bottom seal portion 12a has a first portion 3f of the front film 1 and the bottom film 3, and a second portion 3g of the back film 2 and the bottom film 3 along the first side edge 6 and the second side edge 7. It is sealed (joined) so that it extends in the direction. The second bottom seal portion 12b is configured such that the first portion 3f of the front film 1 and the bottom film 3 and the second portion 3g of the back film 2 and the bottom film 3 extend in the direction along the upper edge 4 and the lower edge 5. It is sealed along the end portion 3h. That is, in the first bottom seal part 12a and the second bottom seal part 12b, the bottom film 3 is joined to the inner surface side of the front film 1 and the inner surface side of the back film 2, respectively. The second bottom seal portion 12b is formed in a direction perpendicular to the first bottom seal portion 12a in the surface direction.

<<Bottom>>
The first portion 3 f of the bottom film 3 and the portion of the front film 1 corresponding to the first portion 3 f of the bottom film 3 are joined, and the second portion 3 g of the bottom film 3 and the second portion of the bottom film 3 of the back film 2 are joined. By joining the portions 3g, the bottom film 3 forms the bottom when the upper edge 4 is directed upward. In this embodiment, the folded portion 3a of the bottom film 3 is formed on the lower edge 5 side to form the bottom portion. That is, the folded part 3a is arranged and formed so as to face the lower edge 5, and the end part 3h faces the upper edge 4 side.

In the pouch of this embodiment, the two ends 3h of the bottom film 3, which are the lower ends of the bottom, facing the folded part 3a are formed at positions apart from the lower edge 5. The positional relationship between the two ends 3h of the bottom film 3 facing the folded portion 3a and the lower edge 5 can be set as appropriate. However, in the present embodiment, in the direction connecting the upper edge 4 and the lower edge 5, the two end portions 3h of the bottom film 3 facing the folded portion 3a are formed at positions separated from the lower edge 5 by a predetermined distance or more. ing. The two ends 3h of the bottom film 3 facing the folded part 3a are formed at a predetermined distance from the lower edge 5, so that the position of the bottom supporting the contents can be changed from the lower edge 5. It can be set at a desired position slightly away from the upper edge 4.

Furthermore, when the distance from the upper edge 4 to the lower edge 5 is L1, and the distance from the folded part 3a of the bottom film 3 to the lower edge 5 is L2, the ratio of distance L2 to distance L1, distance L2/distance L1, is 0. It is preferably 0.1 or more and 0.5 or less, and more preferably 0.2 or more and 0.4 or less. If the distance L2/distance L1 is smaller than these lower limits, the contents will fall too far down and a sufficient exhibition effect will not be obtained, and if the distance L2/distance L1 is larger than these upper limits, the contents will fall too far downward. This is because it rises too high and the balance is not good. When the distance L2/distance L1 is around 0.3, which is the center of the range, the appearance when the contents are stored tends to be good.

<<Accommodation Department>>
After the contents are accommodated through the opening 22, the upper seal portion 14 is formed in the upper seal portion 14a (above the dashed line) shown as 14a in FIG. 1, and the upper edge 4 of the pouch is sealed. will be stopped. The upper seal portion 14 is formed from the first side seal portion 11a to the second side seal portion 11b. The housing portion 21 is defined by an inner edge of the first side seal portion 11a, an inner edge of the second side seal portion 11b, a second bottom seal portion 12b, an inner edge of the top seal portion 14, and a folded portion 3a. has been completed. A part of the accommodating part 21 is narrowed by the first support seal part 13a and the second support seal part 13b, and in a predetermined range in the direction connecting the upper edge 4 and the lower edge 5 (vertical direction in FIG. 1), Only a predetermined range in a direction perpendicular to the direction connecting the upper edge 4 and the lower edge 5 (left-right direction in FIG. 1) exists as a space that can be accommodated. The first support seal portion 13a and the second support seal portion 13b are continuous from the first side seal portion 11a and the second side seal portion 11b, respectively, and extend toward the center of the housing portion 21. It is formed.

In this embodiment, the shapes of the first support seal part 13a and the second support seal part 13b are both rectangles whose longitudinal direction is the direction connecting the first side edge 6 and the second side edge 7 (the left-right direction in FIG. 1). It is the shape. The length (depth) of the accommodating part 21 in the direction connecting the upper edge 4 and the lower edge 5 (vertical direction in FIG. 1) is L1-L2 when the bottom film 3 is completely folded in the folding part 3a. . The specific formation positions of the first support seal part 13a and the second support seal part 13b are not particularly limited, and can be formed at any position. However, when the distance from the upper end 13d of each of the first support seal part 13a and the second support seal part 13b to the upper edge 4 is L3, the ratio of distance L3/distance L1, which is the ratio of distance L3 to distance L1, is 0. It is preferably 2 or more and 0.4 or less, more preferably 0.25 or more and 0.35 or less. If the distance L3/distance L1 is smaller than the lower limit or larger than the upper limit, the contents cannot be properly fixed, resulting in a tilt.

Although there is no particular limitation on the seal width of the first support seal portion 13a and the second support seal portion 13b, the lower limit is 1 mm. This is because if the seal width of the first support seal portion 13a and the second support seal portion 13b is less than 1 mm, the joint portion is likely to be damaged, and there is a risk that the contents may not be sufficiently fixed. The larger the seal width of the first support seal part 13a and the second support seal part 13b, the easier it is to fix the contents. Therefore, the range that can be accommodated in the accommodating portion 21 becomes the upper limit of the seal width of the first support seal portion 13a and the second support seal portion 13b. Note that the seal widths of the first support seal portion 13a and the second support seal portion 13b are preferably the same for good appearance, but do not necessarily have to be the same. Note that the seal widths of the first support seal part 13a and the second support seal part 13b are perpendicular to the direction in which the seal parts of the first support seal part 13a and the second support seal part 13b extend (the left-right direction in FIG. 1). This is the width in the direction (vertical direction in FIG. 1).

There is no particular limitation on the size of the pouch, but the width of the pouch, which is the distance between the first side edge 6 and the second side edge 7 (width in the left-right direction in FIG. 1), is 100 mm to 200 mm, It is preferable that the height of the pouch (the length L1 in the vertical direction in FIG. 1), which is the distance between the edge 5, is 150 mm to 300 mm, and the distance L2 from the folded part 3a of the bottom film 3 to the lower edge 5 is 50 mm to 100 mm. .

<<Contents>>
An article that is longer in one three-dimensional direction than in the other two directions is suitable as the content. This includes so-called cylindrical, prismatic, and stick-shaped objects. If the article itself is to be directly contained, it is of course necessary that it be solid. If it is a powder, it can be filled into a cylindrical, prismatic, or stick-shaped box, and the box can be stored in the storage section 21. In such cases, it is also possible to use food products. However, products such as cosmetics and writing instruments that are cylindrical, prismatic, or stick-shaped can be stored most easily.

<<Film details>>
The front surface, back surface, and bottom surface of the pouch can be composed of a front film 1, a back film 2, and a bottom film 3, which are laminated films. The laminated film is a laminate that includes at least a base layer and a sealant layer from the outside. For example, a laminated film is formed by laminating a base material layer, a printing layer, another layer, and a sealant layer in order from the outside. The printing layer and other layers are not essential. The sealant layer is a layer that constitutes the innermost surface of the pouch. If the pouch is required to be resistant to heat, the base layer is preferably made of a heat resistant material. For example, as the material for the base layer, a polyester film such as polyethylene terephthalate or polybutylene terephthalate, a polyamide film such as nylon, a polypropylene film, etc. can be used. The thickness is approximately 10 μm to 50 μm. The base material layer is preferably biaxially stretched.

Further, the laminated film may include a plurality of base material layers. A first base material layer and a second base material layer can be provided as the plurality of base material layers. As the first base layer and the second base layer, an appropriate combination of the above materials can be used. For example, polyethylene terephthalate can be used as the first base layer that is the outermost layer, and polyamide can be used as the second base layer that is the inner layer (on the sealant layer side). The second base material layer extends from one side edge toward the other side edge. As the second base material layer, for example, "Emblem (registered trademark) NC" manufactured by Unitika Co., Ltd., which contains MXD (meta-xylene diamine) with excellent barrier properties, can be used. Further, as the second base layer, polyester such as "Emblet (registered trademark) PC" manufactured by Unitika Co., Ltd. and "Emblet (registered trademark) PCBC" manufactured by Unitika Corporation may be used. The first base layer and the second base layer can be laminated using, for example, a dry lamination method.

The printing layer is provided for displaying product details, giving an aesthetic appearance, and displaying cut parts. The printing layer is formed from a printing ink containing a binder and a pigment. The sealant layer is disposed on the innermost side of the laminated film when it is made into a pouch. As the material for the sealant layer, polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-propylene block copolymer, etc. can be used. The thickness of the sealant layer is 30 μm or more and 100 μm or less. The sealant layer is preferably unstretched.

The laminated film may include other layers. Other layers may be provided outside the base layer or between the base layer and the sealant layer. As the other layers, appropriate ones are selected depending on the required functions such as water vapor and other gas barrier properties and light blocking properties. For example, when the other layer is a gas barrier layer, a vapor deposited layer of a metal such as aluminum, a metal oxide such as aluminum oxide, or an inorganic oxide such as silicon oxide is provided. The vapor deposition layer may be laminated on the base material layer or may be vapor deposited on the sealant layer. Alternatively, a metal foil such as aluminum may be provided. In addition, a resin layer having gas barrier properties such as ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene chloride resin (PVDC), or aromatic polyamide such as nylon MXD6 may be provided. Each layer can be laminated using a dry lamination method, a melt extrusion method, or the like.

<<Opening means>>
In this embodiment, an unsealing means is formed below the upper sealed portion 14a. The unsealing means includes an easy-to-open line 16 and an unsealing initiation means 15. The opening initiation means 15 is a notch, and is provided in the first side seal portion 11a and the second side seal portion 11b. The opening initiation means 15 may be a cutout. These opening initiation means 15 may be provided only on either the first side seal portion 11a or the second side seal portion 11b. The easy-to-open line 16 is a line extending from the first side seal portion 11a toward the second side seal portion 11b. The easy-to-open line may be a half-cut line that penetrates the base layer but does not penetrate the sealant layer. The half-cut line may be formed using a knife or by laser processing. Further, the easy-to-open line 16 may be a line that extends continuously or may be a line that extends intermittently. Further, the easy-to-open line 16 may be provided so as to extend from one side edge of the pouch to the other side edge.

In this embodiment, the easy-to-open line 16 is realized by a half-cut line. Here, the half-cut line means a line that does not penetrate all layers of the laminated film. In this embodiment, the easy-to-open line 16 is a half-cut line that penetrates only the outermost base layer of the laminated film.

<<Manufacturing method>>
Three laminated films, a front film 1, a back film 2, and a bottom film 3, are prepared. Then, as shown in FIG. 2, the bottom film 3 is folded back at the folded part 3a, and the folded part 3a is turned toward the lower edge 5 side and the ends 3h, 3h are turned to the upper edge 4 side. Put it in between. Then, by heat-sealing the side portions and the bottom portion, a first side seal portion 11a, a second side seal portion 11b, a first bottom seal portion 12a, and a second bottom seal portion 12b are formed. Furthermore, a heat seal is placed at a predetermined position closer to the upper edge 4 than the second bottom seal part 12b so as to extend from the first side seal part 11a and the second side seal part 11b toward the center side of the housing part 21. By doing so, the first support seal portion 13a and the second support seal portion 13b are formed. Thereby, a pouch having an opening 22 as shown in FIG. 1 is obtained. Then, the contents are inserted through the opening 22, passed between the first support seal part 13a and the second support seal part 13b, and fixed and housed at a position where the tip reaches the folded part 3a. Then, by heat-sealing the upper sealed portion 14a to form the upper sealed portion 14, a pouch containing contents as shown in FIG. 4 is obtained. The seal width of the upper seal portion 14 is preferably 5 mm or more and 10 mm or less. Note that the seal width is the width in the direction perpendicular to the direction in which the seal portion extends.

<<About use>>
The pouch containing the contents is distributed in the market as a product and delivered to stores and the like. In stores, they are displayed with the upper edge 4 facing upward and the lower edge 5 facing downward. In the pouch of this embodiment, when the distance from the upper edge 4 to the lower edge 5 is L1, and the distance from the folded part 3a of the bottom film 3 to the lower edge 5 is L2, the distance is the ratio of the distance L2 to the distance L1. Since L2/distance L1 is 0.1 or more and 0.5 or less, the contents can be fixed at a position higher than the lower edge, and furthermore, the first support seal portion 13a and the second support seal portion 13b, it can be fixed at a predetermined position also in the left and right direction. FIG. 4 is a front view of the pouch containing the contents. As shown in FIG. 4, contents N having a shape extending in one direction can be accommodated and displayed in an attractive manner. A consumer who has purchased the contents N contained in the pouch starts opening the pouch through an opening initiation means 15 such as a notch. Specifically, the cut is enlarged by grasping the upper and lower sides of the opening initiation means 15 and applying forces in opposite directions. Furthermore, when force is applied, cuts are also made along the easy-to-open line 16 into layers other than the base layer of the front film 1 and the back film, and the portion of the pouch above the easy-to-open line 16 is separated.

<<Modified example of support seal part>>
In the above embodiment, as shown in FIG. 1, two support seal parts are formed, a first support seal part 13a and a second support seal part 13b, and a first side seal part 11a and a second side seal part 13b are formed. They are each continuous from the seal portion 11b and have a rectangular shape extending toward the center of the accommodating portion 21. Although the support seal part as shown in FIG. 1 is a preferable example for fixing the contents N in a predetermined position, various other modifications are possible. Here, a modification of the support seal portion will be explained.

5 and 6 are front views showing pouches according to modified examples of the present invention. 5 and 6, the shape, size, position, etc. of the support seal portion are different from the pouch shown in FIG. 1. In the example of FIG. 5A, the positions of the first support seal part 13a and the second support seal part 13b in the direction connecting the upper edge 4 and the lower edge 5 are different. If the upper end of the first support seal part 13a that is close to the upper edge 4 is 13d, and the upper end of the second support seal part 13b is 13e, then the distance from the upper end 13d of the first support seal part 13a to the upper edge 4 is When L3 is assumed, it is preferable that distance L3/distance L1, which is the ratio of distance L3 to distance L1, satisfies the above range. That is, the distance L3/distance L1 is preferably 0.2 or more and 0.4 or less, and more preferably 0.25 or more and 0.35 or less.

In the example of FIG. 5(b), the positions of the first support seal portion 13a and the second support seal portion 13b in the direction connecting the upper edge 4 and the lower edge 5 are the same, but the first support seal portion shown in FIG. The length in the direction connecting the first side edge 6 and the second side edge 7 (the left-right direction in FIG. 5) is shorter than that of the portion 13a and the second support seal portion 13b. Further, the first support seal portion 13a is separated from the first side seal portion 11a, and the second support seal portion 13b is separated from the second side seal portion 11b. Even in this case, when the distance from the upper end 13d of the first support seal part 13a and the second support seal part 13b to the upper edge 4 is defined as L3, the ratio of distance L3 to distance L1 of distance L3/distance L1 is as described above. It is preferable that the range is satisfied.

In the example of FIG. 5(c), only one of the second support seal parts 13b near the second side edge 7 is formed as the support seal part. Even in this case, when the distance from the upper end 13d of the second support seal part 13b to the upper edge 4 is L3, it is preferable that distance L3/distance L1, which is the ratio of distance L3 to distance L1, satisfies the above range.

In the example of FIG. 6(a), the positions of the first support seal part 13a and the second support seal part 13b in the direction connecting the upper edge 4 and the lower edge 5 are the same; The support seal portions 13b are both circular in shape. Even in this case, when the distance from the upper end 13d of the first support seal part 13a and the second support seal part 13b to the upper edge 4 is defined as L3, the ratio of distance L3 to distance L1 of distance L3/distance L1 is as described above. It is preferable that the range is satisfied.

In the example shown in FIG. 6(b), the shapes of the first support seal part 13a and the second support seal part 13b are both circular, as in the example shown in FIG. The positions of the first support seal part 13a and the second support seal part 13b in the direction in which they are connected are different. Assuming that the upper end of the second support seal part 13b that is close to the upper edge 4 is 13d, and the upper end of the first support seal part 13a is 13e, the distance from the upper end 13d of the second support seal part 13b to the upper edge 4 is When L3 is assumed, it is preferable that distance L3/distance L1, which is the ratio of distance L3 to distance L1, satisfies the above range.

FIG. 6(c) shows a state in which the pouch shown in FIG. 6(b) contains a content N that is elongated in one direction. As shown in FIG. 6(c), when the positions of the first support seal part 13a and the second support seal part 13b in the direction connecting the upper edge 4 and the lower edge 5 are different, the longitudinal direction of the content N is , the pouch is housed at an angle from the direction connecting the upper edge 4 and lower edge 5 of the pouch.

The present invention is not limited to the forms shown in FIGS. 1, 5, and 6, and various forms can be adopted. For example, the shape of the support seal portion is not limited to a rectangular or circular shape, but may be an ellipse, a polygon, or any other arbitrary shape. In addition, when there are two instruction seal parts, the first support seal part 13a and the second support seal part 13b, the length in the direction connecting the first side edge 6 and the second side edge 7 (left-right direction in FIG. 5) is They may be different from each other.

<<Example 1>>
After forming a printed layer on a PET film having a thickness of 12 μm, the surface of the printed layer and a biaxially stretched nylon having a thickness of 15 μm were bonded together via an adhesive layer. Subsequently, the stretched nylon and a 30 μm thick linear low density polyethylene (LLDPE) film were bonded together via an adhesive layer. This creates a laminated film in which polyethylene terephthalate (PET)/printed layer/adhesive layer (DL)/biaxially oriented nylon (ONY)/adhesive layer (DL)/linear low-density polyethylene (LLDPE) are laminated in this order. A front film 1, a back film 2, and a bottom film 3 were formed. The adhesive layer is a cured product of an acrylic polyol and an isocyanate compound.

After that, the bottom film 3 is folded back by the folded part 3a, and sandwiched between the front film 1 and the back film 2 with the folded part 3a facing the lower edge 5 side, and heat-sealed to each other to form the first side seal part 11a. , a second side seal portion 11b, a first bottom seal portion 12a, and a second bottom seal portion 12b were formed. Furthermore, heat sealing is performed at a predetermined position closer to the upper edge 4 than the second bottom seal part 12b so as to extend from the first side seal part 11a and the second side seal part 11b toward the center of the accommodating part 21. As a result, a first support seal portion 13a and a second support seal portion 13b were formed.

<<Example 2>>
Except that the structure of the laminated film was polyethylene terephthalate (PET) 12 μm / printing layer / adhesive layer (DL) / biaxially oriented nylon (ONY) 15 μm / adhesive layer (DL) low density polyethylene (LDPE) 50 μm. A pouch was created in the same manner as in Example 1.

<<Example 3>>
Except that the structure of the laminated film was transparent vapor deposited polyethylene terephthalate (PET) 12 μm / printing layer / adhesive layer (DL) / polyethylene terephthalate (PET) 12 μm / adhesive layer (DL) / unstretched polypropylene (CPP) 100 μm. A pouch was prepared in the same manner as in Example 1.

＜＜Evaluation＞＞
In any of the pouches of Examples 1 to 3, the folding part 3a, the first support seal part 13a, and the second support seal part 13b fix the contents in a desired position, make the product stand out, and display it in an attractive manner. We were able to.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be modified in various ways. For example, in the above embodiment, the front surface, the back surface, and the bottom surface are composed of three films, the front film 1, the back film 2, and the bottom film 3, but they may be composed of two films. For example, the front surface, back surface, and bottom surface of the pouch may be constructed using two films in total, including a film in which a front film and a back film are arranged in series, and a bottom film. In this case, in the processing step, the opening 22 can be obtained by folding the top edge 4 side of the film in which the front film and the back film are connected, and cutting the end at a position corresponding to the top edge 4. .

1... Front film 2... Back film 3... Bottom film 4... Upper edge 5... Lower edge 6... First side edge 7... Second side edge 11a... First side seal part 11b... Second side seal part 12a... First bottom seal part 12b... Second bottom seal part 13a... First support seal part 13b... Second support Seal portion 14... Upper seal portion 14a... Upper seal scheduled portion 15... Unsealing initiation means 16... Easy-to-open line 21... Accommodation portion 22... Opening portion L1... Upper edge 4 to the lower edge 5 L2... Distance from the folded part 3a of the bottom film 3 to the lower edge 5 L3... From the upper end 13d of each of the first support seal part 13a and the second support seal part 13b to the upper edge distance to 4

Claims (5)

A pouch having at least a front surface, a back surface, and a bottom surface, a top edge, a bottom edge opposite to the top edge, and a first side edge and a second side edge extending between the top edge and the bottom edge. ,
a first side seal portion is formed to include the first side edge;
a second side seal portion is formed to include the second side edge;
The bottom surface includes a first bottom seal part formed to extend in a direction along the first side edge and the second side edge, and a second bottom seal part formed to extend in a direction along the upper edge and the lower edge. It is joined to the inner surface side of the front surface and the inner surface side of the back surface by a bottom seal part,
When the bottom surface is folded in a direction along the lower edge, a folded portion formed on the bottom surface is formed on the lower edge side,
The folded portion of the bottom surface is formed at a position separated from the lower edge by a predetermined distance or more,
A support seal portion is formed on the upper edge side of the bottom surface to join the front surface and the back surface at at least one place and support the contents ,
When the distance from the upper edge to the lower edge is L1, and the distance from the folded part to the lower edge when the bottom is folded is L2, the ratio of distance L2 to distance L1 is distance L2/distance L1. 0.1 or more and 0.5 or less,
A pouch having an opening at a lower portion including the lower edge . The pouch according to claim 1, characterized in that the support seal portion includes a first support seal portion close to the first side edge and a second support seal portion close to the second side edge. When the distance from the upper end of the first support seal part and the second support seal part, which is closer to the upper edge to the upper edge, is L3, the distance L3 is the ratio of the distance L3 to the distance L1. 3. The pouch according to claim 2 , wherein the pouch is formed at a position where the distance L1 is 0.2 or more and 0.4 or less. 2 or 3, wherein the length of the first support seal portion and the length of the second support seal portion in the direction connecting the first side edge and the second side edge are equal to each other. 3. The pouch described in 3 . A distance from the upper edge side end of the first support seal part to the upper edge and a distance from the upper edge side end of the second support seal part to the upper edge are equal to each other. The pouch according to any one of claims 2 to 4 .