Storage unit

Abstract

The present invention provides a storage container that uses paper such as old newspapers, possesses a certain level of strength, and can be constructed into any shape, such as a bag or a box. [Solution] A long, strip-shaped material is obtained by repeatedly folding a rectangular piece of paper to a certain width. This material is then woven in plain or twill weave and constructed into a bag or box shape, and persimmon tannin is applied to the surface. When folding the rectangular paper, in order to eliminate the anisotropy of strength caused by the orientation of the fibers that make up the paper, it is folded not in a direction parallel to the long or short sides of the rectangle, but in a direction parallel to the diagonal, perpendicular, or somewhere in between. Furthermore, to prevent the ends of the woven long strip-shaped material from being visible from the outside, the long strip-shaped material corresponding to the weft threads is placed so as to be hidden beneath the long strip-shaped material corresponding to the weft threads, and conversely, the ends of the warp threads are hidden beneath the weft threads.

Description

Technical Field

[0001] The present invention relates to a storage body having a shape such as a so-called tote bag or a box shape, and particularly to a storage body made of a paper material having strength ensured by persimmon tannin.

Background Art

[0002] Paper bags are used in various fields and lack durability, and most of them are disposable. However, Patent Document 1 discloses that a lacquered cloth or lacquered paper characterized in that a lacquer layer is laminated via a wax, paraffin, or silicone layer can be used to provide a bag, clothing, a wallet, etc.

[0003] However, the lacquered cloth and lacquered paper disclosed here laminate the lacquer via a wax, paraffin, or silicone layer as described above, so the process is somewhat complicated and there seems to be room for improvement in terms of manufacturing cost.

[0004] Further, Patent Document 2 discloses an eco-bag using a rice bag in which paper bags are stacked three times, which has a bottomed bag body composed of the lower half of the rice bag, and two handles formed by shaping two sheets out of six sheets obtained by cutting the upper half of the rice bag into approximately six equal parts into a string shape, and two linings obtained by pasting two sheets together for each of the remaining four sheets, wherein the handles are attached inside the bag body and the linings are attached inside the bag body so as to cover the attachment portion of the handles.

[0005] However, the rice bag eco-bag disclosed here has a problem that the shape is limited because the bag for storing rice is used as it is as much as possible.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] The object of this invention is to provide a storage body that has a certain strength and can be constructed into any shape, such as a bag or a box, using paper, especially discarded paper. [Means for solving the problem]

[0008] The inventors of this invention have diligently studied how to obtain a stacked paper strip material by folding paper to a certain width, and how to obtain a storage body of any shape with higher strength than ordinary paper by weaving it in a plain or twill weave and applying persimmon tannin. As a result of this research, they have arrived at the present invention.

[0009] To solve the above problems, one aspect of the present invention provides a storage body constructed by weaving a long, strip-shaped material as warp and weft threads, with persimmon tannin applied to its surface, characterized in that the long, strip-shaped material is a strip obtained by repeatedly folding a rectangular piece of paper in a certain direction and with a substantially constant width.

[0010] Furthermore, according to one aspect of the present invention, the weaving method of the strip-shaped long material is characterized in that it is at least one of plain weave or twill weave.

[0012] Furthermore, the direction in which the rectangular paper is folded according to one aspect of the present invention is characterized by being any of the following: a direction perpendicular to the diagonal of the rectangular paper, a direction parallel to the diagonal of the rectangular paper, or an intermediate direction between the direction perpendicular to the diagonal of the rectangular paper and the direction parallel to the diagonal of the rectangular paper. [Effects of the Invention]

[0013] Persimmon tannin is obtained by crushing unripe astringent persimmons, storing them in a container for fermentation, and then pressing them. It is known that cloth and paper coated with this tannin are given insect-repellent, preservative, and waterproof properties, and their strength is improved. Therefore, when persimmon tannin is applied to the surface of a long, strip-shaped material obtained by folding paper to a certain width, the combined effect of the paper lamination and the persimmon tannin coating results in a long, high-strength strip-shaped material.

[0014] Furthermore, in a typical papermaking process, the fibers that make up the paper are oriented in a specific direction, particularly in the direction in which the long roll of paper is wound. This can result in anisotropy, where the tensile strength and tear strength differ between the direction of fiber orientation and the direction perpendicular to it.

[0015] In this invention, to avoid this, a rectangular piece of paper is folded diagonally or perpendicular to the diagonal to form a long, strip-shaped material. As a result, the fibers constituting the paper in the entire long, strip-shaped material are less likely to be oriented in a particular direction, and the material exhibits substantially the same tensile strength and tear strength in all directions.

[0016] The type of paper used in this invention is not particularly limited, but it is possible to use newspaper, and by utilizing waste paper that was previously discarded, such as old newspapers, it is possible to contribute to reducing the burden on the environment. [Brief explanation of the drawing]

[0017] [Figure 1] Perspective view showing an example of a tote bag according to the present invention [Figure 2] A diagram showing an example of how to fold a rectangular piece of paper according to the present invention. [Figure 3] A diagram showing an example of the arrangement of the ends when plain weaving a long, strip-shaped material according to the present invention. [Modes for carrying out the invention]

[0018] FIG. 1 is a perspective view showing an example of a tote bag according to the present invention. In this example, a strip-shaped long material 2a corresponding to the warp and a strip-shaped long material 2b corresponding to the weft are plain-woven to form a box-shaped form with one side open, and handles 3a and 3b are attached to form a tote bag 1. Here, for the sake of clarity, the strip-shaped long material 2b corresponding to the weft is hatched so that the arrangement of each of the strip-shaped long material 2a corresponding to the warp and the strip-shaped long material 2b corresponding to the weft becomes clear.

[0019] Here, a strip-shaped long material having a width of about 20 mm is used. When forming a small storage body such as a business card case or a card case, the width of the strip-shaped long material is set to about 10 mm or less. After plain-weaving, persimmon tannin is applied to both the outer and inner surfaces, and multiple coats are applied as necessary.

[0020] FIG. 2 is a diagram showing an example of a folding method of a rectangular paper according to the present invention. What is shown here is an example of folding along a line parallel to the diagonal of the rectangular paper. As shown in FIG. 2(a), first, the rectangular paper 4 is folded between the diagonal 5, that is, between the vertices A and B, and sequentially between C-D in FIG. 2(b), between E-F in FIG. 2(c), between G-H in FIG. 2(d), between I-J in FIG. 2(e), and between K-L in FIG. 2(g). Repeating this folding obtains individual pieces of the strip-shaped long material.

[0021] Here, although detailed description is omitted, each time folding is performed, the thickness increases, so it is necessary to appropriately adjust the folding length accordingly. In addition, the folding method of the rectangular paper can be, as shown in FIG. 2, folded in a direction parallel to the diagonal, or, as described above, in a direction perpendicular to the diagonal of the rectangular paper, or in an intermediate direction between the direction perpendicular to the diagonal of the rectangular paper and the direction parallel to the diagonal of the rectangular paper. However, by the method shown in FIG. 2, the longest strip-shaped long material can be obtained from one rectangular paper.

[0022] FIG. 3 is a diagram showing an example of the arrangement of the ends when the strip-shaped long material according to the present invention is woven flat. FIG. 3(a) shows a piece 6 of the strip-shaped long material obtained by the method shown in FIG. 2, and hypotenuses 7a and 7b that are obliquely in contact with the long sides are formed at both ends. When constructing a tote bag as shown in FIG. 1 using this, when using it as the strip-shaped long material 7a corresponding to the warp, as shown in FIG. 3(b), both ends are bent perpendicular to the long side or cut and used. Also, when the length of the piece 6 of the strip-shaped long material is insufficient, it is appropriately joined and used.

[0023] In addition, since the strip-shaped long material 6b corresponding to the weft needs to form a loop, both ends are overlapped. At that time, the hypotenuse 7a of the end arranged on the outside is arranged as shown in FIG. 3(c) so as to be hidden by the strip-shaped long material 6a corresponding to the warp, so that it cannot be visually recognized from the outside. It is also possible to make the end not visible from the outside when the length of the strip-shaped long material 6b corresponding to the weft is insufficient. Of course, when using a plurality of strip-shaped long materials as the warp, it is also possible to cover the joint and the end with the strip-shaped long material corresponding to the weft so that they cannot be visually recognized from the outside.

[0024] As described above, according to the present invention, by applying kaki tannin, it is possible to provide a paper storage body with enhanced strength, water resistance, etc. The present invention is not limited to the above-described embodiment. For example, those having ordinary knowledge in the field of the present invention, such as weaving the strip-shaped long material in a twill weave or applying it to an article such as a pass case, can conceive of various modifications and corrections. Even if there is a design change within the scope that does not depart from the gist of the present invention, it is of course included in the present invention.

Explanation of Reference Numerals

[0025] 1 ··· Tote bag 2a, 6a ··· Strip-shaped long materials corresponding to the warp 2b, 6b ··· Strip-shaped long materials corresponding to the weft 3a, 3b ··· Handles 4. Rectangular paper 5. Diagonal 6. Individual pieces of long, strip-shaped material. 7a,7b... hypotenuse

Claims

1. A storage bag is woven in a bag shape using a long, strip-shaped material as warp and weft threads, and coated with persimmon tannin, characterized in that the long, strip-shaped material is made by folding a rectangular piece of paper in multiple places.

2. The storage body according to claim 1, characterized in that the weaving method of the aforementioned long, strip-shaped material is at least one of plain weave or twill weave.

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