Container and method of manufacturing the same

Abstract

To provide a container capable of reducing the number of components and improving merchantability.SOLUTION: A container 100a is provided with a body part 1a including a front side body part 11a and a rear side body part 12a disposed opposite to each other, and a bottom part 2a provided between the front side body part 11a and the rear side body part 12a so as to be foldable, and the bottom part 2a is expanded to form a housing space and to be self-supporting. The front side body part 11a, the rear side body part 12a, and the bottom part 2a are formed of one sheet material. The front side body 11a has a printed area 5 with printing.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a container and a method for manufacturing the same. [Background technology]

[0002] 2. Description of the Related Art Stand-up pouches are known in the art (see, for example, Patent Document 1).

[0003] The standing pouch comprises a front sheet and a back sheet which are laminated together, and a bottom sheet which is placed at the lower ends of the front sheet and the back sheet. The bottom sheet is sandwiched between the front sheet and the back sheet in a folded state, and is heat-sealed to the front sheet and the back sheet. Both side ends of the front sheet and the back sheet are heat-sealed. The standing pouch is configured to be able to stand on its own when the bottom sheet is unfolded. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-115118 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional standing pouch as described above, it is difficult to reduce the number of parts because it is manufactured using three sheets of sheet material. Also, it is desirable to improve the marketability of the standing pouch.

[0006] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a container and a manufacturing method thereof that can reduce the number of parts and improve marketability. [Means for solving the problem]

[0007] The container according to the present invention comprises a body including a front body and a rear body arranged opposite to each other, and a bottom provided between the front body and the rear body in a foldable manner, and is configured to be self-supporting and to form a storage space when the bottom is unfolded. The front body, the rear body and the bottom are made of a single sheet material. At least one of the front body and the rear body has a printed area on which printing is applied.

[0008] In the above container, the sheet material may be made of paper.

[0009] In the above container, the bottom includes a bottom main body that becomes the lower end of the storage space when unfolded, a front attachment part affixed to the lower end of the front body part, and a rear attachment part affixed to the lower end of the rear body part, the front attachment part being connected to the lower end of the front body part via a first fold, and the rear attachment part being connected to the lower end of the rear body part via a second fold, the bottom main body having a third fold that is folded back when folded, and being connected to the front attachment part via a fourth fold and to the rear attachment part via a fifth fold, the fourth fold and the fifth fold being configured to be folded when unfolded.

[0010] In the container having a bottom including a front attachment part and a rear attachment part, the bottom may be formed so as to have an elliptical shape when viewed from the bottom surface side in an unfolded state.

[0011] In the container having a bottom including a front attachment portion and a rear attachment portion, the bottom may be formed so as to have a hexagonal shape when viewed from the bottom surface side in an unfolded state.

[0012] In the container having the above-mentioned bottom including a front attachment portion and a rear attachment portion, the front body portion and the rear body portion each include a side surface forming portion that forms the side surface of the storage space when the bottom is unfolded, and the bottom may be formed so as to have a rectangular shape when viewed from the bottom side in the unfolded state.

[0013] The above container may have a glue tab connected to one side end of the front body portion and the rear body portion via a sixth fold, and the glue tab may be attached to the other side end of the front body portion and the rear body portion.

[0014] The container may further comprise a sealing material made of a hot melt adhesive provided at an upper end of the body, the sealing material being configured to be capable of sealing the opening of the body by being heated and melted.

[0015] In this case, the sealing material may be provided on the inner surface of the front or rear body portion, and dots of hot melt adhesive may be applied in a continuous manner in the width direction of the body portion.

[0016] The method for manufacturing a container according to the present invention is a method for manufacturing a container that includes a body including a front body and a rear body arranged opposite to each other, and a bottom provided between the front body and the rear body in a foldable manner, and that is configured to form a storage space and be self-supporting by unfolding the bottom. The bottom includes a bottom body that becomes the lower end of the storage space when unfolded, a front attachment part attached to the lower end of the front body, and a rear attachment part attached to the lower end of the rear body. The front attachment part is connected to the lower end of the front body via a first fold, and the rear attachment part is connected to the lower end of the rear body via a second fold. The bottom body has a third fold that is folded back when folded, and is connected to the front attachment part via a fourth fold and is connected to the rear attachment part via a fifth fold. The container includes an adhesive part connected to one side end of the front body and the rear body via a sixth fold. The front body portion, the rear body portion, the bottom portion, and the adhesive portion are formed from a single sheet material. The method for manufacturing a container includes the steps of applying a first adhesive to the sheet material for adhering the front attachment portion of the bottom portion to the lower end of the front body portion and a second adhesive for adhering the rear attachment portion of the bottom portion to the lower end of the rear body portion, adhering the front attachment portion of the bottom portion to the lower end of the front body portion and adhering the rear attachment portion of the bottom portion to the lower end of the rear body portion by folding along the first fold line to the third fold line, applying a third adhesive to the sheet material for adhering the other of the front body portion and the rear body portion to the adhesive portion, adhering the adhesive portion to the other of the front body portion and the rear body portion by folding along the sixth fold line, and printing on at least one of the front body portion and the rear body portion.

[0017] In the above-mentioned method for manufacturing a container, a step of applying a fourth adhesive, which serves as a sealing material, to the sheet material before the first adhesive and the second adhesive are applied to the sheet material may be included, and the fourth adhesive may be solidified before the first fold to the third fold are folded. Effect of the Invention

[0018] According to the container and the manufacturing method thereof of the present invention, it is possible to reduce the number of parts and improve the merchantability. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is a perspective view showing a state in which the bottom part of the container of the first embodiment is folded. [Diagram 2] FIG. 2 is a perspective view showing the bottom of the container of FIG. 1 in an unfolded state. [Diagram 3] FIG. 3 is a perspective view of the container of FIG. 2 as seen from below. [Figure 4] FIG. 3 is an enlarged perspective view of the opening of the container in FIG. 2. [Diagram 5] FIG. 2 is a plan view showing the sheet material before the container of the first embodiment is manufactured. [Figure 6] FIG. 6 is a diagram showing a state in which adhesive is applied to the sheet material of FIG. 5. [Figure 7] FIG. 7 is a diagram showing the state in which the sheet material of FIG. 6 has been folded and then coated with adhesive. [Figure 8] FIG. 11 is a perspective view showing a state in which the bottom part of the container of the second embodiment is folded. [Figure 9] FIG. 9 is a perspective view showing the bottom of the container of FIG. 8 in an unfolded state. [Figure 10] FIG. 10 is a perspective view of the container of FIG. 9 as seen from below. [Figure 11] 10 is an enlarged perspective view of the opening of the container of FIG. 9. FIG. [Figure 12] FIG. 11 is a plan view showing a sheet material before a container according to a second embodiment is manufactured. [Figure 13] 13 is a diagram showing a state in which adhesive is applied to the sheet material of FIG. 12. FIG. [Figure 14] FIG. 14 is a diagram showing the state in which the sheet material of FIG. 13 has been folded and then coated with adhesive. [Figure 15] FIG. 11 is a perspective view showing a state in which the bottom part of the container of the third embodiment is folded. [Figure 16] FIG. 16 is a perspective view showing the bottom of the container of FIG. 15 in an unfolded state. [Figure 17] FIG. 17 is a perspective view of the container of FIG. 16 as seen from below. [Figure 18] FIG. 17 is an enlarged perspective view of the opening of the container in FIG. 16. [Figure 19] FIG. 17 is a perspective view showing the container of FIG. 16 with the opening closed. [Figure 20] FIG. 11 is a plan view showing a sheet material before a container according to a third embodiment is manufactured. [Figure 21] FIG. 21 is a diagram showing a state in which adhesive is applied to the sheet material of FIG. 20. [Figure 22] FIG. 22 shows the sheet material of FIG. 21 after it has been folded and adhesive has been applied thereto. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of the present invention will be described.

[0021] (First embodiment) First, an overview of a container 100a according to a first embodiment will be described with reference to FIGS.

[0022] 1, the container 100a includes a body 1a including a front body 11a and a rear body 12a, a bottom 2a disposed at the lower end of the body 1a, a glue tab 3 for closing the side ends of the front body 11a and the rear body 12a, and a sealing material 4 for sealing the opening of the body 1a. The container 100a is configured so that the bottom 2a can be folded between the front body 11a and the rear body 12a.

[0023] As shown in Fig. 2, the container 100a is configured to be self-supporting and to form a storage space by unfolding the bottom 2a. Contents (not shown) can be put in and taken out of the container 100a through an opening at the upper end of the body 1a. A hole 13 is formed at the upper end of the body 1a, allowing the container 100a to be suspended.

[0024] The front body 11a has a printing area 5 on which printing is applied. The printing content of the printing area 5 (not shown) may include a decorative pattern, or may include letters or codes for conveying information. The printing area 5 is provided on the outer surface of the front body 11a (the surface opposite the storage space) and is provided in a part of the front body 11a. The printing content of the printing area 5, the dimensions of the printing area 5, and the position of the printing area 5 on the front body 11a can be changed as appropriate depending on the container 100a.

[0025] The front body portion 11a, the rear body portion 12a, the bottom portion 2a, and the adhesive portion 3 are formed of a single sheet material 100A (see FIG. 5). This sheet material 100A is made of paper such as bleached kraft paper, and is not coated with a resin film or the like. In other words, the sheet material 100A is a single layer of paper, and the container 100a does not have barrier properties.

[0026] -Container manufacturing method- Next, a method for manufacturing the container 100a of the first embodiment will be described with reference to FIGS.

[0027] First, a sheet material 100A as shown in Fig. 5 is formed by punching. The sheet material 100A has holes 13 formed during punching. Furthermore, folds Fa1 to Fa7 are formed in the sheet material 100A. Note that the fold Fa1 is an example of a "first fold" of the present invention, the fold Fa2 is an example of a "second fold" of the present invention, the fold Fa3 is an example of a "third fold" of the present invention, the fold Fa4 is an example of a "fourth fold" of the present invention, the fold Fa5 is an example of a "fifth fold" of the present invention, and the fold Fa6 is an example of a "sixth fold" of the present invention.

[0028] This sheet material 100A is substantially rectangular and includes a front body portion 11a, a rear body portion 12a, a bottom portion 2a, and a glue tab portion 3. The bottom portion 2a is connected to the front body portion 11a via a fold line Fa1, and the rear body portion 12a is connected to the bottom portion 2a via a fold line Fa2. That is, the front body portion 11a, the bottom portion 2a, and the rear body portion 12a are arranged so as to be continuous in the longitudinal direction (X direction), and the bottom portion 2a is arranged between the front body portion 11a and the rear body portion 12a. A hole portion 13 is formed in each of the front body portion 11a and the rear body portion 12a. The front body portion 11a, the rear body portion 12a, and the bottom portion 2a are set so as to have the same dimensions in the short direction (Y direction). The fold lines Fa1 and Fa2 are formed so as to extend in the Y direction.

[0029] The front body portion 11a is connected to the adhesive portion 3 via a fold line Fa6. The adhesive portion 3 is formed so as to protrude outward in the short side direction from the front body portion 11a, and is provided over the entire length of the front body portion 11a in the longitudinal direction. The fold line Fa6 is formed so as to extend in the X direction.

[0030] The bottom 2a includes a bottom main body 21a that becomes the lower end of the storage space when unfolded, a front attachment part 22a that is attached to the lower end 111a of the front body part 11a, and a rear attachment part 23a that is attached to the lower end 121a of the rear body part 12a. The bottom main body 21a and the front attachment part 22a are connected via a fold Fa4, and the bottom main body 21a and the rear attachment part 23a are connected via a fold Fa5. The fold Fa4 is curved so that its center is located on the front body part 11a side with respect to both ends in the Y direction. The fold Fa5 is curved so that its center is located on the rear body part 12a side with respect to both ends in the Y direction.

[0031] The front attachment portion 22a is disposed on the front body 11a side with respect to the bottom body 21a, and is connected to the lower end 111a via the fold line Fa1. That is, the front attachment portion 22a is partitioned by the fold lines Fa1 and Fa4. The rear attachment portion 23a is disposed on the rear body 12a side with respect to the bottom body 21a, and is connected to the lower end 121a via the fold line Fa2. That is, the rear attachment portion 23a is partitioned by the fold lines Fa2 and Fa5.

[0032] The bottom body 21a is defined by folds Fa4 and Fa5 and is formed into an elliptical shape. The bottom body 21a has a fold Fa3 extending in the Y direction and has a main body front side 211a and a main body rear side 212a. The main body front side 211a is defined by folds Fa3 and Fa4 and is formed into a semi-elliptical shape. The main body rear side 212a is defined by folds Fa3 and Fa5 and is formed into a semi-elliptical shape. In addition, the bottom body 21a has two folds Fa7 extending in the X direction, and the two folds Fa7 are spaced apart in the Y direction.

[0033] The front body portion 11a, the front attachment portion 22a, and the main body front side 211a, and the rear body portion 12a, the rear attachment portion 23a, and the main body rear side 212a are formed symmetrically with respect to the fold line Fa3.

[0034] In such a sheet material 100A, as shown in FIG. 6, an adhesive Ga1 that becomes the sealing material 4 (see FIG. 4) is applied to the front body portion 11a. The adhesive Ga1 is a hot melt adhesive. The adhesive Ga1 is dot-like and is provided so as to be continuous in the Y direction near the hole portion 13. The adhesive Ga1 is an example of the "fourth adhesive" of the present invention.

[0035] Next, the adhesive Ga2 is applied to the front attachment portion 22a, and the adhesive Ga3 is applied to the rear attachment portion 23a. The adhesives Ga2 and Ga3 are, for example, vinyl acetate resin emulsion adhesives. The adhesives Ga2 and Ga3 are examples of the "first adhesive" and the "second adhesive" of the present invention, respectively.

[0036] Thereafter, the adhesive Ga1 is solidified, and while the adhesives Ga2 and Ga3 are not solidified, the fold Fa3 is mountain-folded, and the folds Fa1 and Fa2 are valley-folded. That is, after the adhesive Ga1 is solidified and before the adhesives Ga2 and Ga3 are solidified, the folds Fa1 to Fa3 are folded.

[0037] As a result, the front body portion 11a and the rear body portion 12a are stacked, and the bottom portion 2a folded in half is sandwiched between the stacked front body portion 11a and the rear body portion 12a. At this time, the front attachment portion 22a is attached to the lower end portion 111a of the front body portion 11a by adhesive Ga2, and the rear attachment portion 23a is attached to the lower end portion 121a of the rear body portion 12a by adhesive Ga3. The bottom portion 2a is folded back at the fold line Fa3, so that the front attachment portion 22a and the main body front side 211a are arranged on the same plane, and the rear attachment portion 23a and the main body rear side 212a are arranged on the same plane. Thus, the sheet material 101A shown in FIG. 7 is formed.

[0038] Next, adhesive Ga4 is applied to the rear body portion 12a. The adhesive Ga4 is, for example, a vinyl acetate resin emulsion adhesive. The adhesive Ga4 is disposed at both ends in the Y direction and extends in the X direction. The adhesive Ga4 is an example of the "third adhesive" of the present invention.

[0039] Then, the fold line Fa6 is folded in a valley, and the adhesive Ga4 is used to attach the margin 3 to the side edge of the rear body portion 12a. Thereafter, the print area 5 (see FIG. 1) of the front body portion 11a is printed using, for example, a laser printer (not shown). That is, printing is performed after the sheet material 100A is folded into a bag shape. In this manner, the container 100a as shown in FIG. 1 is manufactured.

[0040] -Container configuration- Next, the configuration of the container 100a of the first embodiment will be described with reference to FIGS.

[0041] As shown in Fig. 1, in the container 100a, the flat cylindrical front body portion 11a and the rear body portion 12a are arranged opposite to each other and are stacked. In this container 100a, the distance between the front body portion 11a and the rear body portion 12a is expanded, and as shown in Fig. 2, the folds Fa4 and Fa5 are folded and the fold Fa3 is stretched, thereby unfolding the bottom portion 2a. At this time, the bottom body 21a becomes the bottom surface of the storage space. As shown in Fig. 3, the bottom portion 2a is formed so as to have an elliptical shape when viewed from the bottom side in the unfolded state.

[0042] In the container 100a, the legs are formed by the lower end 111a of the front body 11a and the front attachment part 22a, and the legs are formed by the lower end 121a of the rear body 12a and the rear attachment part 23a. Therefore, when the container 100a is placed on a placement surface (not shown), the folds Fa1 and Fa2 come into contact with the placement surface. At this time, the bottom body 21a is spaced from the placement surface.

[0043] As shown in FIG. 4, the sealing material 4 is disposed at the upper end of the body 1a and below the hole 13. The sealing material 4 is provided on the inner surface of the front body 11a, and dots of hot melt adhesive 41 are applied so as to be continuous in the width direction of the body 1a. The hot melt adhesive 41 is mainly composed of, for example, polyolefin resin, and is formed by solidifying the above-mentioned adhesive Ga1. The sealing material 4 is configured so that it can seal the opening of the body 1a by heating and melting it while the upper ends of the front body 11a and the rear body 12a are pressed against each other. That is, the sealing material 4 solidified after melting bonds the upper ends of the front body 11a and the rear body 12a. Note that the hot melt adhesive 41 is not provided at both ends in the width direction of the body 1a, and even when the body 1a is sealed with the sealing material 4, it is possible for air to pass through both ends.

[0044] -effect- In the first embodiment, as described above, the container 100a is made of one sheet material 100A, so that the number of parts can be reduced.

[0045] Furthermore, in the first embodiment, the container 100a is made of paper, which reduces the environmental impact compared to a plastic container.

[0046] In the first embodiment, the container 100a has a printed area 5, which improves its marketability. Since printing is performed after the sheet material 100A is formed into a bag, the content printed in the printed area 5 can be easily changed, and the container can be produced in small batches. The user (consumer) of the container 100a may be able to instruct the manufacturer (manufacturer) of the container 100a on the content printed in the printed area 5.

[0047] In the first embodiment, the opening of the body 1a can be sealed by providing the sealing material 4. Also, the amount of resin used can be reduced compared to when a resin film layer for sealing the opening of the body is formed on a sheet material. This can reduce the environmental impact and manufacturing costs.

[0048] In the first embodiment, the sealing material 4 is made of dots of hot melt adhesive 41, and when sealing is performed, the shape of the hot melt adhesive 41 changes due to melting and solidification, so that it is possible to visually check whether sealing has been performed or not. In other words, it is possible to visually distinguish between a state where the package is not sealed and a state where the package has been sealed and then opened.

[0049] Furthermore, in the first embodiment, the fold Fa7 is formed in the bottom body 21a, which makes it easier for the bottom 2a to unfold.

[0050] Second embodiment Next, an overview of a container 100b according to a second embodiment will be described with reference to FIGS.

[0051] 8, the container 100b includes a body 1b including a front body 11b and a rear body 12b, a bottom 2b disposed at the lower end of the body 1b, a glue tab 3 for closing the side ends of the front body 11b and the rear body 12b, and a sealing material 4 for sealing the opening of the body 1b. The container 100b is configured so that the bottom 2b can be folded between the front body 11b and the rear body 12b.

[0052] As shown in Fig. 9, the container 100b is configured to be self-supporting and to form a storage space by unfolding the bottom 2b. Contents (not shown) can be put in and taken out of the container 100b through an opening at the upper end of the body 1b. A hole 13 is formed at the upper end of the body 1b, allowing the container 100b to be suspended.

[0053] Front body 11b has a printing area 5 on which printing is applied. The printing content (not shown) of printing area 5 may include a decorative pattern, or may include letters or codes for conveying information. Printing area 5 is provided on the outer surface of front body 11b (the surface opposite the storage space) and is provided in a part of front body 11b. The printing content of printing area 5, the dimensions of printing area 5, and the position of printing area 5 on front body 11b can be changed as appropriate depending on container 100b.

[0054] The front body portion 11b, the rear body portion 12b, the bottom portion 2b, and the adhesive portion 3 are formed of a single sheet material 100B (see FIG. 12). This sheet material 100B is made of paper such as bleached kraft paper, and is not coated with a resin film or the like. In other words, the sheet material 100B is a single layer of paper, and the container 100b does not have barrier properties.

[0055] -Container manufacturing method- Next, a method for manufacturing the container 100b of the second embodiment will be described with reference to FIGS.

[0056] First, a sheet material 100B as shown in Fig. 12 is formed by punching. The sheet material 100B has holes 13 formed during punching. Furthermore, folds Fb1 to Fb8 are formed in the sheet material 100B. Note that the fold Fb1 is an example of a "first fold" of the present invention, the fold Fb2 is an example of a "second fold" of the present invention, the fold Fb3 is an example of a "third fold" of the present invention, the fold Fb4 is an example of a "fourth fold" of the present invention, the fold Fb5 is an example of a "fifth fold" of the present invention, and the fold Fb6 is an example of a "sixth fold" of the present invention.

[0057] This sheet material 100B is substantially rectangular, and includes a front body portion 11b, a rear body portion 12b, a bottom portion 2b, and a glue tab portion 3. The bottom portion 2b is connected to the front body portion 11b via a fold Fb1, and the rear body portion 12b is connected to the bottom portion 2b via a fold Fb2. That is, the front body portion 11b, the bottom portion 2b, and the rear body portion 12b are arranged so as to be continuous in the longitudinal direction (X direction), and the bottom portion 2b is arranged between the front body portion 11b and the rear body portion 12b. The front body portion 11b and the rear body portion 12b each have a hole portion 13. The front body portion 11b, the rear body portion 12b, and the bottom portion 2b are set so as to have the same dimensions in the short direction (Y direction). The folds Fb1 and Fb2 are formed so as to extend in the Y direction.

[0058] The front body portion 11b is connected to the adhesive portion 3 via a fold Fb6. The adhesive portion 3 is formed to protrude outward from the front body portion 11b in the short side direction and is provided over the entire length of the front body portion 11b in the longitudinal direction. The fold Fb6 is formed to extend in the X direction.

[0059] The bottom 2b includes a bottom body 21b that becomes the lower end of the storage space when unfolded, a front attachment part 22b that is attached to the lower end 111b of the front body part 11b, and a rear attachment part 23b that is attached to the lower end 121b of the rear body part 12b. The bottom body 21b and the front attachment part 22b are connected via a fold Fb4, and the bottom body 21b and the rear attachment part 23b are connected via a fold Fb5. The fold Fb4 has a straight part that extends in the Y direction near the fold Fb1, and inclined parts that are inclined from both ends of the straight part so as to move away from the fold Fb1. The fold Fb5 has a straight part that extends in the Y direction near the fold Fb2, and inclined parts that are inclined from both ends of the straight part so as to move away from the fold Fb2.

[0060] The front attachment portion 22b is disposed on the front body 11b side with respect to the bottom body 21b, and is connected to the lower end 111b via the fold Fb1. That is, the front attachment portion 22b is defined by the folds Fb1 and Fb4. The rear attachment portion 23b is disposed on the rear body 12b side with respect to the bottom body 21b, and is connected to the lower end 121b via the fold Fb2. That is, the rear attachment portion 23b is defined by the folds Fb2 and Fb5.

[0061] The bottom body 21b is defined by folds Fb4 and Fb5 and is formed into a hexagonal shape. The bottom body 21b has a fold Fb3 extending in the Y direction and has a main body front side 211b and a main body rear side 212b. The main body front side 211b is defined by folds Fb3 and Fb4 and is formed into a trapezoid shape. The main body rear side 212b is defined by folds Fb3 and Fb5 and is formed into a trapezoid shape.

[0062] In addition, two folds Fb7 extending in the X direction are formed in the bottom portion 2b, and the two folds Fb7 are spaced apart in the Y direction. The folds Fb7 are arranged so as to pass through two vertices (corners) of the hexagonal bottom body 21b. Therefore, the two folds Fb7 divide the bottom body 21b into a rectangular region 213b and triangular regions 214b arranged at both ends of the region 213b in the Y direction. In addition, a fold Fb8 is formed in each of the front body portion 11b and the rear body portion 12b so as to be continuous with the folds Fb7.

[0063] The front body portion 11b, the front attachment portion 22b, and the main body front side 211b, and the rear body portion 12b, the rear attachment portion 23b, and the main body rear side 212b are formed symmetrically with respect to the fold line Fb3.

[0064] In such a sheet material 100B, as shown in FIG. 13, an adhesive Gb1 that becomes the sealing material 4 (see FIG. 11) is applied to the front body portion 11b. The adhesive Gb1 is a hot melt adhesive. The adhesive Gb1 is dot-like and is provided so as to be continuous in the Y direction near the hole portion 13. The adhesive Gb1 is an example of the "fourth adhesive" of the present invention.

[0065] Next, the adhesive Gb2 is applied to the front attachment portion 22b, and the adhesive Gb3 is applied to the rear attachment portion 23b. The adhesives Gb2 and Gb3 are, for example, vinyl acetate resin-based emulsion adhesives. The adhesives Gb2 and Gb3 are examples of the "first adhesive" and the "second adhesive" of the present invention, respectively.

[0066] Thereafter, the adhesive Gb1 is solidified, and while the adhesives Gb2 and Gb3 are not solidified, the fold Fb3 is mountain folded, and the folds Fb1 and Fb2 are valley folded. In other words, after the adhesive Gb1 is solidified and before the adhesives Gb2 and Gb3 are solidified, the folds Fb1 to Fb3 are folded.

[0067] As a result, the front body portion 11b and the rear body portion 12b are stacked, and the bottom portion 2b folded in half is sandwiched between the stacked front body portion 11b and rear body portion 12b. At this time, the front attachment portion 22b is attached to the lower end portion 111b of the front body portion 11b with adhesive Gb2, and the rear attachment portion 23b is attached to the lower end portion 121b of the rear body portion 12b with adhesive Gb3. The bottom portion 2b is folded back at the fold line Fb3, so that the front attachment portion 22b and the main body front side 211b are arranged on the same plane, and the rear attachment portion 23b and the main body rear side 212b are arranged on the same plane. Thus, the sheet material 101B as shown in FIG. 14 is formed.

[0068] Next, adhesive Gb4 is applied to the rear body portion 12b. The adhesive Gb4 is, for example, a vinyl acetate resin emulsion adhesive. The adhesive Gb4 is disposed on both ends in the Y direction and extends in the X direction. The adhesive Gb4 is an example of the "third adhesive" of the present invention.

[0069] Then, the fold line Fb6 is folded in a valley, and the adhesive Gb4 is used to attach the margin 3 to the side edge of the rear body portion 12b. Thereafter, the print area 5 (see FIG. 8) of the front body portion 11b is printed using, for example, a laser printer (not shown). That is, printing is performed after the sheet material 100B is folded into a bag shape. In this manner, a container 100b as shown in FIG. 8 is manufactured.

[0070] -Container configuration- Next, the configuration of a container 100b according to a second embodiment will be described with reference to FIGS.

[0071] As shown in Fig. 8, in the container 100b, the flat cylindrical front body portion 11b and the rear body portion 12b are arranged opposite to each other and are stacked. In this container 100b, the distance between the front body portion 11b and the rear body portion 12b is expanded, and as shown in Fig. 9, the folds Fb4 and Fb5 are folded and the fold Fb3 is stretched, thereby unfolding the bottom portion 2b. At this time, the bottom body 21b becomes the bottom surface of the storage space. As shown in Fig. 10, the bottom portion 2b is formed so as to have a hexagonal shape when viewed from the bottom side in the unfolded state.

[0072] In the container 100b, the legs are formed by the lower end 111b of the front body 11b and the front attachment part 22b, and the legs are formed by the lower end 121b of the rear body 12b and the rear attachment part 23b. Therefore, when the container 100b is placed on a placement surface (not shown), the folds Fb1 and Fb2 are abutted against the placement surface. At this time, the bottom body 21b is spaced apart from the placement surface. In the bottom body 21b, the rectangular area 213b is arranged parallel to the placement surface, and the triangular area 214b is inclined upward from the area 213b.

[0073] As shown in FIG. 11, the sealing material 4 is disposed at the upper end of the body 1b and below the hole 13. The sealing material 4 is provided on the inner surface of the front body 11b, and dots of hot melt adhesive 41 are applied so as to be continuous in the width direction of the body 1b. The hot melt adhesive 41 is mainly composed of, for example, polyolefin resin, and is formed by solidifying the above-mentioned adhesive Gb1. The sealing material 4 is configured so that it can seal the opening of the body 1b by heating and melting it while the upper ends of the front body 11b and the rear body 12b are pressed against each other. That is, the sealing material 4 solidified after melting bonds the upper ends of the front body 11b and the rear body 12b. Note that the hot melt adhesive 41 is not provided at both ends in the width direction of the body 1b, and even when the body 1b is sealed with the sealing material 4, it is possible for air to pass through both ends.

[0074] -effect- In the second embodiment, as described above, by forming the fold Fb8 in the front torso section 11b and the rear torso section 12b, it is possible to make it easier for the bottom portion 2b to be maintained in a hexagonal state when the bottom portion 2b is unfolded.

[0075] Other effects of the second embodiment are similar to those of the first embodiment.

[0076] Third embodiment Next, a container 100c according to a third embodiment will be outlined with reference to FIGS.

[0077] 15, the container 100c includes a body 1c including a front body 11c and a rear body 12c, a bottom 2c disposed at the lower end of the body 1c, a glue tab 3 for closing the side ends of the front body 11c and the rear body 12c, and a sealing material 4 for sealing the opening of the body 1c. The container 100c is configured so that the bottom 2c can be folded between the front body 11c and the rear body 12c.

[0078] As shown in Fig. 16, the container 100c is configured to be self-supporting and to form a storage space by unfolding the bottom 2c. Contents (not shown) can be put in and taken out of the container 100c through an opening at the upper end of the body 1c. A hole 13 is formed at the upper end of the body 1c, allowing the container 100c to be suspended.

[0079] The front body 11c has a printing area 5 on which printing is applied. The printing content (not shown) of the printing area 5 may include a decorative pattern, or may include letters or codes for conveying information. The printing area 5 is provided on the outer surface of the front body 11c (the surface opposite the storage space side) and is provided in a part of the front body 11c. The printing content of the printing area 5, the dimensions of the printing area 5, and the position of the printing area 5 on the front body 11c can be changed as appropriate depending on the container 100c.

[0080] The front body portion 11c, the rear body portion 12c, the bottom portion 2c, and the adhesive portion 3 are formed of a single sheet material 100C (see FIG. 20). This sheet material 100C is made of paper such as bleached kraft paper, and is not coated with a resin film or the like. In other words, the sheet material 100C is a single layer of paper, and the container 100c does not have barrier properties.

[0081] -Container manufacturing method- Next, a method for manufacturing the container 100c of the third embodiment will be described with reference to FIGS.

[0082] First, a sheet material 100C as shown in Fig. 20 is formed by punching. The sheet material 100C has holes 13 formed during punching. Furthermore, folds Fc1 to Fc12 are formed in the sheet material 100C. Note that the fold Fc1 is an example of a "first fold" of the present invention, the fold Fc2 is an example of a "second fold" of the present invention, the fold Fc3 is an example of a "third fold" of the present invention, the fold Fc4 is an example of a "fourth fold" of the present invention, the fold Fc5 is an example of a "fifth fold" of the present invention, and the fold Fc6 is an example of a "sixth fold" of the present invention.

[0083] This sheet material 100C is substantially rectangular and includes a front body portion 11c, a rear body portion 12c, a bottom portion 2c, and a glue tab portion 3. The bottom portion 2c is connected to the front body portion 11c via a fold Fc1, and the rear body portion 12c is connected to the bottom portion 2c via a fold Fc2. That is, the front body portion 11c, the bottom portion 2c, and the rear body portion 12c are arranged so as to be continuous in the longitudinal direction (X direction), and the bottom portion 2c is arranged between the front body portion 11c and the rear body portion 12c. The front body portion 11c and the rear body portion 12c each have a hole portion 13. The front body portion 11c, the rear body portion 12c, and the bottom portion 2c are set so as to have the same dimensions in the short direction (Y direction). The folds Fc1 and Fc2 are formed so as to extend in the Y direction.

[0084] The front body portion 11c is connected to the adhesive portion 3 via a fold Fc6. The adhesive portion 3 is formed to protrude outward from the front body portion 11c in the short side direction and is provided over the entire length of the front body portion 11c in the longitudinal direction. The fold Fc6 is formed to extend in the X direction.

[0085] The bottom 2c includes a bottom body 21c that becomes the lower end of the storage space when unfolded, a front attachment part 22c that is attached to the lower end 111c of the front body part 11c, and a rear attachment part 23c that is attached to the lower end 121c of the rear body part 12c. The bottom body 21c and the front attachment part 22c are connected via a fold Fc4, and the bottom body 21c and the rear attachment part 23c are connected via a fold Fc5. The fold Fc4 has a straight part that extends in the Y direction near the fold Fc1, and inclined parts that are inclined from both ends of the straight part so as to move away from the fold Fc1. The fold Fc5 has a straight part that extends in the Y direction near the fold Fc2, and inclined parts that are inclined from both ends of the straight part so as to move away from the fold Fc2.

[0086] The front attachment portion 22c is disposed on the front body 11c side with respect to the bottom body 21c, and is connected to the lower end 111c via the fold Fc1. That is, the front attachment portion 22c is partitioned by the folds Fc1 and Fc4. The rear attachment portion 23c is disposed on the rear body 12c side with respect to the bottom body 21c, and is connected to the lower end 121c via the fold Fc2. That is, the rear attachment portion 23c is partitioned by the folds Fc2 and Fc5.

[0087] The bottom body 21c is defined by folds Fc4 and Fc5 and is formed into a hexagonal shape. The bottom body 21c has a fold Fc3 extending in the Y direction and has a main body front side 211c and a main body rear side 212c. The main body front side 211c is defined by folds Fc3 and Fc4 and is formed into a trapezoid shape. The main body rear side 212c is defined by folds Fc3 and Fc5 and is formed into a trapezoid shape.

[0088] In addition, two folds Fc7 extending in the X direction are formed in the bottom 2c, and the two folds Fc7 are spaced apart in the Y direction. The folds Fc7 are arranged so as to pass through two vertices (corners) of the hexagonal bottom body 21c. Therefore, the two folds Fc7 divide the bottom body 21c into a rectangular region 213c and triangular regions 214c located at both ends of the region 213c in the Y direction.

[0089] Furthermore, folds Fc8 to Fc10 are formed in the front torso portion 11c and the rear torso portion 12c, respectively. The folds Fc8 and Fc9 separate the side surface forming portions 112c and 122c that form the side surfaces of the storage space when the bottom portion 2c is unfolded. The fold Fc8 is formed to extend in the X direction and is provided so as to be continuous with the fold Fc7. The fold Fc9 is provided so as to be continuous with the fold Fc8 and is formed to be inclined outward in the Y direction from the fold Fc8. The fold Fc10 is formed to extend outward in the Y direction from the boundary between the folds Fc8 and Fc9.

[0090] Folds Fc11 and Fc12 are formed in the margin portion 3. The fold Fc11 is formed so as to be line-symmetrical with the fold Fc9 with respect to the fold Fc6. The fold Fc12 is formed so as to be line-symmetrical with the fold Fc10 with respect to the fold Fc6.

[0091] The front body portion 11c, the front attachment portion 22c, and the main body front side 211c, and the rear body portion 12c, the rear attachment portion 23c, and the main body rear side 212c are formed symmetrically with respect to the fold line Fc3.

[0092] In such a sheet material 100C, as shown in FIG. 21, adhesive Gc1 which becomes the sealing material 4 (see FIG. 18) is applied to the front body portion 11c. The adhesive Gc1 is a hot melt adhesive. The adhesive Gc1 is dot-like and is provided so as to be continuous in the Y direction near the hole portion 13. The adhesive Gc1 is an example of the "fourth adhesive" of the present invention.

[0093] Next, the adhesive Gc2 is applied to the front attachment portion 22c, and the adhesive Gc3 is applied to the rear attachment portion 23c. The adhesives Gc2 and Gc3 are, for example, vinyl acetate resin-based emulsion adhesives. The adhesives Gc2 and Gc3 are examples of the "first adhesive" and the "second adhesive" of the present invention, respectively.

[0094] Thereafter, the adhesive Gc1 is solidified, and while the adhesives Gc2 and Gc3 are not solidified, the fold Fc3 is mountain folded, and the folds Fc1 and Fc2 are valley folded. In other words, after the adhesive Gc1 is solidified and before the adhesives Gc2 and Gc3 are solidified, the folds Fc1 to Fc3 are folded.

[0095] As a result, the front body portion 11c and the rear body portion 12c are stacked, and the bottom portion 2c folded in half is sandwiched between the stacked front body portion 11c and the rear body portion 12c. At this time, the front attachment portion 22c is attached to the lower end portion 111c of the front body portion 11c by the adhesive Gc2, and the rear attachment portion 23c is attached to the lower end portion 121c of the rear body portion 12c by the adhesive Gc3. The bottom portion 2c is folded back at the fold Fc3, and the front attachment portion 22c and the main body front side 211c are arranged on the same plane, and the rear attachment portion 23c and the main body rear side 212c are arranged on the same plane. Thus, a sheet material 101C as shown in FIG. 22 is formed.

[0096] Next, adhesive Gc4 is applied to the rear body portion 12c. The adhesive Gc4 is, for example, a vinyl acetate resin emulsion adhesive. The adhesive Gc4 is disposed on both ends in the Y direction and extends in the X direction. The adhesive Gc4 is an example of the "third adhesive" of the present invention.

[0097] Then, the fold line Fc6 is folded in a valley shape, and the adhesive Gc4 is used to attach the margin 3 to the side edge of the rear body portion 12c. Thereafter, the print area 5 (see FIG. 15) of the front body portion 11c is printed using, for example, a laser printer (not shown). That is, printing is performed after the sheet material 100C is folded into a bag shape. In this manner, a container 100c as shown in FIG. 15 is manufactured.

[0098] -Container configuration- Next, the configuration of a container 100c according to a third embodiment will be described with reference to FIGS.

[0099] As shown in Fig. 15, in container 100c, flat tubular front body portion 11c and rear body portion 12c are arranged opposite each other and stacked. In container 100c, the distance between front body portion 11c and rear body portion 12c is expanded and folds Fc8 to Fc10 are folded. As a result, as shown in Fig. 16, folds Fc4 and Fc5 are folded and fold Fc3 is stretched, thereby unfolding bottom portion 2c. As shown in Fig. 17, bottom portion 2c is formed to have a rectangular shape when viewed from the bottom side in an unfolded state.

[0100] In addition, in the container 100c, the legs are formed by the lower end 111c of the front body 11c and the front attachment part 22c, and the legs are formed by the lower end 121c of the rear body 12c and the rear attachment part 23c. Therefore, when the container 100c is placed on a placement surface (not shown), the folds Fc1 and Fc2 are abutted against the placement surface. At this time, the bottom body 21c is spaced apart from the placement surface. In the bottom body 21c, the rectangular area 213c is arranged parallel to the placement surface, and the triangular area 214c is raised at a substantially right angle from the area 213c. That is, the rectangular area 213c is the bottom surface of the storage space, and the triangular area 214c constitutes the side surface of the storage space.

[0101] Below the body 1c of the container 100c, the side surfaces of the storage space are formed by the side surface forming parts 112c and 122c. The dimensions of the side surfaces are constant from the lower end to the fold Fc10, and become smaller as they move upward from the fold Fc10, disappearing before reaching the upper end. For this reason, in the container 100c, as shown in FIG. 19, when the bottom 2c is unfolded, the opening at the upper end of the body 1c is easily kept closed.

[0102] As shown in FIG. 18, the sealing material 4 is disposed at the upper end of the body 1c and below the hole 13. The sealing material 4 is provided on the inner surface of the front body 11c, and dots of hot melt adhesive 41 are applied so as to be continuous in the width direction of the body 1c. The hot melt adhesive 41 is mainly composed of, for example, polyolefin resin, and is formed by solidifying the above-mentioned adhesive Gc1. The sealing material 4 is configured so that it can seal the opening of the body 1c by heating and melting it while the upper ends of the front body 11c and the rear body 12c are pressed against each other. That is, the sealing material 4 solidified after melting bonds the upper ends of the front body 11c and the rear body 12c. Note that the hot melt adhesive 41 is not provided at both ends in the width direction of the body 1c, and even when the body 1c is sealed with the sealing material 4, it is possible for air to pass through both ends.

[0103] -effect- In the third embodiment, as described above, folds Fc8 to Fc10 are formed in front torso section 11c and rear torso section 12c, thereby making it possible to form side surfaces on the underside of torso section 1c.

[0104] Other effects of the third embodiment are similar to those of the first embodiment.

[0105] (Other embodiments) It should be noted that the embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. Therefore, the technical scope of the present invention is not interpreted solely by the above-described embodiments, but is defined by the claims. The technical scope of the present invention includes all modifications within the scope and meaning equivalent to the claims.

[0106] For example, in the first embodiment, the sheet material 100A is a single layer of paper, but the present invention is not limited to this, and a resin film or the like may be coated on a paper sheet material. The coating may be applied to the entire sheet material or to a part of the sheet material. The same applies to the second and third embodiments.

[0107] In the first embodiment, the overlap portion 3 is formed in the front body portion 11a, but the present invention is not limited to this, and the overlap portion may be formed in the rear body portion. The same applies to the second and third embodiments.

[0108] In the first embodiment, the sealing material 4 is provided in the front body portion 11a, but the present invention is not limited to this. The sealing material may be provided in the rear body portion, or may be provided in both the front body portion and the rear body portion. The sealing material 4 may not be provided. The same applies to the second and third embodiments.

[0109] In the first embodiment, the dot-like hot melt adhesive 41 is provided so as to be continuous in the width direction of the body 1a, but the present invention is not limited to this, and the hot melt adhesive may be provided so as to be linearly extended in the width direction of the body. The same applies to the second and third embodiments.

[0110] In the first embodiment, the hot melt adhesive 41 is not provided at both ends of the body 1a in the width direction, but the present invention is not limited to this, and the hot melt adhesive may be provided over the entire width of the body. The same applies to the second and third embodiments.

[0111] In the first embodiment, the adhesive Ga2 is applied to the front attachment portion 22a, but the adhesive may be applied to the lower end of the front body portion. The same applies to the second and third embodiments.

[0112] In the first embodiment, the adhesive Ga3 is applied to the rear attachment portion 23a, but the adhesive may be applied to the lower end of the rear body portion. The same applies to the second and third embodiments.

[0113] In the first embodiment, the adhesive Ga4 is applied to the rear body portion 12a, but the present invention is not limited to this, and the adhesive may be applied to the overlap portion. The same applies to the second and third embodiments.

[0114] In the first embodiment, the printing area 5 is provided on the front body portion 11a, but the present invention is not limited to this, and the printing area may be provided on the rear body portion, or may be provided on both the front body portion and the rear body portion. The same applies to the second and third embodiments.

[0115] In the first embodiment, the printing area 5 is provided on a part of the front body part 11a, but the printing area may be provided on the entire surface of the front body part. The same applies to the second and third embodiments.

[0116] In the first embodiment, the printing in the print area 5 may be color printing or monochrome printing. The same applies to the second and third embodiments. [Industrial Applicability]

[0117] INDUSTRIAL APPLICABILITY The present invention can be used for a container that is configured to be self-supporting by having a bottom portion that is deployed. [Explanation of symbols]

[0118] 1a, 1b, 1c Torso 2a, 2b, 2c bottom 3 Glue section 4. Sealing material 5 Print area 11a, 11b, 11c Front torso 12a, 12b, 12c Rear fuselage 21a, 21b, 21c Bottom body 22a, 22b, 22c Front attachment part 23a, 23b, 23c Rear attachment part 41 Hot melt adhesives 100a, 100b, 100c container 100A, 100B, 100C sheet material 112c, 122c side components

Claims

1. A body portion including a front body portion and a rear body portion arranged opposite to each other; A bottom portion is provided between the front body portion and the rear body portion in a foldable manner, A container in which a storage space is formed by unfolding the bottom portion and which is configured to be self-supporting, the front body portion, the rear body portion, and the bottom portion are formed from a single sheet material, A container characterized in that at least one of the front body portion and the rear body portion has a printed area on which printing is applied.

2. 2. The container according to claim 1, The container is characterized in that the sheet material is made of paper.

3. 3. The container according to claim 1 or 2, The bottom portion includes a bottom body that becomes a lower end of the storage space when unfolded, a front attachment portion attached to a lower end of the front body portion, and a rear attachment portion attached to a lower end of the rear body portion, The front attachment portion is connected to a lower end portion of the front body portion via a first fold line, The rear attachment portion is connected to a lower end portion of the rear body portion via a second fold line, The bottom body has a third fold that is folded back when folded, and is connected to the front attachment part via a fourth fold and is connected to the rear attachment part via a fifth fold; The container, wherein the fourth fold and the fifth fold are configured to be folded when unfolded.

4. 4. The container according to claim 3, The container is characterized in that the bottom portion is formed so as to have an elliptical shape when viewed from the bottom side in an unfolded state.

5. 4. The container according to claim 3, The container is characterized in that the bottom portion is formed so as to have a hexagonal shape when viewed from the bottom side in an unfolded state.

6. 4. The container according to claim 3, the front body portion and the rear body portion each include a side surface forming portion that forms a side surface of the storage space when the bottom portion is deployed, The container is characterized in that the bottom portion is formed so as to have a rectangular shape when viewed from the bottom side in an unfolded state.

7. 3. The container according to claim 1 or 2, A glue tab portion is provided which is connected to one side end portion of the front body portion and the rear body portion via a sixth fold line, A container characterized in that the adhesive portion is attached to the other side end portion of the front body portion and the rear body portion.

8. 3. The container according to claim 1 or 2, A sealing material is provided at an upper end of the body and made of a hot melt adhesive, A container characterized in that the sealing material is configured so as to be capable of sealing the opening of the body portion by being heated and melted.

9. 9. The container according to claim 8, A container characterized in that the sealing material is provided on the inner surface of the front body portion or the rear body portion, and dots of hot melt adhesive are applied in a continuous manner in the width direction of the body portion.

10. A method for manufacturing a container comprising a body portion including a front body portion and a rear body portion disposed opposite to each other, and a bottom portion foldably provided between the front body portion and the rear body portion, the bottom portion being unfolded to form a storage space and being configured to be self-supporting, comprising: The bottom portion includes a bottom body that becomes a lower end of the storage space when unfolded, a front attachment portion attached to a lower end of the front body portion, and a rear attachment portion attached to a lower end of the rear body portion, The front attachment portion is connected to a lower end portion of the front body portion via a first fold line, The rear attachment portion is connected to a lower end portion of the rear body portion via a second fold line, The bottom body has a third fold that is folded back when folded, and is connected to the front attachment part via a fourth fold and is connected to the rear attachment part via a fifth fold; The container includes a glue tab portion connected to one side end portion of the front body portion and one side end portion of the rear body portion via a sixth fold line, the front body portion, the rear body portion, the bottom portion, and the overlap portion are formed of a single sheet material, applying a first adhesive to a sheet material for bonding a front attachment portion of the bottom portion to a lower end of the front body portion, and a second adhesive to bond a rear attachment portion of the bottom portion to a lower end of the rear body portion; a step of attaching the front attachment portion of the bottom portion to the lower end portion of the front body portion and attaching the rear attachment portion of the bottom portion to the lower end portion of the rear body portion by folding the first fold line to the third fold line; applying a third adhesive to a sheet material for adhering the other of the front body portion and the rear body portion to the glue tab portion; a step of attaching the glue tab to the other of the front body portion and the rear body portion by folding the sixth fold; and printing at least one of the front body portion and the rear body portion.

11. The method for manufacturing a container according to claim 10, a step of applying a fourth adhesive, which serves as a sealing material, to the sheet material before the first adhesive and the second adhesive are applied to the sheet material; A method for manufacturing a container, comprising the steps of: solidifying the fourth adhesive before folding the first fold line to the third fold line.

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