WO2021125194A1

WO2021125194A1 - Antibacterial fabric

Info

Publication number: WO2021125194A1
Application number: PCT/JP2020/046841
Authority: WO
Inventors: 辻　雅之; 英治田口; 良藤堂
Original assignee: 株式会社村田製作所
Priority date: 2019-12-20
Filing date: 2020-12-16
Publication date: 2021-06-24
Also published as: CN218203290U

Abstract

The present invention is characterized by comprising: a first sheet including a first fiber; and a second sheet including a second fiber that is disposed facing the first fiber and is composed of a material that is at a lower level than the first fiber in the triboelectric series, wherein at least one among the first fiber and the second fiber is charged by friction or close peeling, and the distance between the first fiber and the second fiber is less than 50 cm.

Description

Antibacterial cloth

The present invention relates to an antibacterial cloth that exhibits an antibacterial effect.

Conventionally, many proposals have been made for fiber materials having antibacterial properties (see Patent Documents 1 to 8).

Japanese Patent No. 3281640 Japanese Unexamined Patent Publication No. 7-310284 Japanese Patent No. 3165992 Japanese Patent No. 1805853 Japanese Unexamined Patent Publication No. 8-226578 Japanese Unexamined Patent Publication No. 9-194304 Japanese Unexamined Patent Publication No. 2004-300650 Japanese Patent No. 6292368

However, none of the antibacterial materials had a long-lasting effect.

In addition, antibacterial materials may cause allergic reactions due to drugs and the like.

Therefore, an object of the present invention is to provide an antibacterial cloth that has a longer lasting effect than a conventional material having antibacterial properties and is safer than a drug or the like.

The antibacterial cloth of the present invention is a second fiber composed of a first sheet containing the first fiber and a material which is arranged facing the first fiber and is lower than the first fiber in the charging row. A second sheet containing the above, and at least one of the first fiber and the second fiber is charged by friction or close peeling, and the first fiber and the second fiber are charged. The distance is less than 50 cm.

In the antibacterial cloth according to the present invention, at least one of the first sheet containing the first fiber and the second sheet containing the second fiber is charged by friction or close peeling. The first fiber and the second fiber are made of materials existing at different positions in the charged rows. The first fiber and the second fiber have different potentials. Therefore, an electric field is generated between the first fiber and the second fiber. The antibacterial yarn according to the present invention can exert an antibacterial effect by the generated electric field.

Since the first fiber or the second fiber generates an electric field by friction or close peeling, no power source is required and there is no risk of electric shock. Further, since the first fiber or the second fiber repeatedly generates an electric field by friction or close peeling, it lasts longer than the antibacterial effect of a drug or the like. Also, it is less likely to cause an allergic reaction than a drug.

According to the present invention, it is possible to realize an antibacterial cloth that has a longer lasting effect than a conventional material having antibacterial properties and is safer than a drug or the like.

FIG. 1 (A) is a partially enlarged view showing the configuration of the antibacterial thread according to the first embodiment, and FIG. 1 (B) is a cross-sectional view taken along the line II of FIG. 1 (A). FIG. 2A is a partially enlarged view for explaining the configuration of the antibacterial thread according to the second embodiment, and FIG. 2B is a sectional view taken along line II-II of FIG. 2A. is there. FIG. 3A is a partially enlarged view for explaining the configuration of the antibacterial thread according to the third embodiment, and FIG. 3B is a cross section cut along the line III-III of FIG. 3A. It is a figure. FIG. 4 (A) is a partially enlarged view for explaining the configuration of the antibacterial cloth according to the fourth embodiment, and FIG. 4 (B) is a cross section cut along the IV-IV line of FIG. 4 (A). It is a figure. FIG. 5 (A) is a partially enlarged view for explaining the configuration of the antibacterial cloth according to the fifth embodiment, and FIG. 5 (B) is a cross section cut along the line VV of FIG. 5 (A). It is a figure. FIG. 6 (A) is a partially enlarged cross-sectional view for explaining the configuration of the antibacterial cloth according to the sixth embodiment, and FIGS. 6 (B) and 6 (C) are antibacterial views according to the sixth embodiment. This is a modified example of cloth.

FIG. 1 (A) is a partially enlarged view showing the configuration of the antibacterial thread 100 according to the first embodiment, and FIG. 1 (B) shows the antibacterial thread 100 cut along the line II of FIG. 1 (A). It is a cross-sectional view.

As shown in FIG. 1 (A), the antibacterial thread 100 includes a first fiber 11 and a second fiber 12. The second fiber 12 is arranged so as to face the first fiber 11.

The second fiber 12 is made of a material that is lower in the charging row than the first fiber 11. For example, when the material of the first fiber 11 is nylon, the material of the second fiber 12 is acrylic. The material of the first fiber 11 may also be, for example, silk, rayon, glass, wool, cotton or the like. Silk, rayon, glass, wool, cotton and the like are relatively positively charged materials. The material of the second fiber 12 may also be, for example, acetate, polyester, urethane, polyethylene, vinyl or the like. Acetate, polyester, urethane, polyethylene, vinyl and the like are materials that are relatively easily negatively charged. The first fiber 11 may be made of a material having a position different from that of the second fiber 12 in the charging row. Further, the material of the first fiber 11 and the second fiber 12 may be a piezoelectric material having piezoelectricity.

Hereinafter, a case where the first fiber 11 and the second fiber 12 are charged by friction will be described. For example, the first fiber 11 is rubbed by coming into contact with or away from the second fiber 12. The first fiber 11 and the second fiber 12 are also charged by proximity peeling.

As shown in FIG. 1B, since the first fiber 11 is a material that is easily charged positively, it is positively charged when rubbed. Since the second fiber 12 is a material that is easily negatively charged, it is negatively charged when rubbed. Further, the first fiber 11 is also positively charged by being in contact with an object other than the second fiber 12 and being rubbed. The second fiber 12 is also negatively charged by being in contact with and rubbed against an object other than the first fiber 11.

The first fiber 11 and the second fiber 12 generate an electric field due to the potential difference between them. Therefore, the antibacterial thread 100 generates an electric field. Further, when the first fiber 11 is close to an object having a predetermined potential, for example, a human body or the like having a predetermined potential (including a ground potential), the first fiber 11 is between the first fiber 11 and the object. Generates an electric field. Similarly, the second fiber 12 creates an electric field between the second fiber 12 and the object when it is in close proximity to an object having a predetermined potential.

It is sufficient that at least one of the first fiber 11 and the second fiber 12 is charged by friction. For example, the first fiber 11 may be positively or negatively charged and the second fiber 12 may not be charged. Further, the first fiber 11 may not be charged and the second fiber 12 may be positively or negatively charged. Further, both the first fiber 11 and the second fiber 12 may be positively charged. Further, both the first fiber 11 and the second fiber 12 may be negatively charged. However, when both the first fiber 11 and the second fiber 12 are charged with the same polarity, a potential difference between the first fiber 11 and the second fiber 12 is required.

When the first fiber 11 is in contact with the second fiber 12, the potential difference between the first fiber 11 and the second fiber 12 becomes zero. When the first fiber 11 is separated from the second fiber 12, an electric field is generated due to the potential difference. When the first fiber 11 is not in contact with the second fiber 12, the electric field generated between the first fiber 11 and the second fiber 12 is maintained.

It has long been known that electric fields can suppress the growth of bacteria and fungi (see, for example, Tetsuaki Doto, Hiroki Korai, Hideaki Matsuoka, Junichi Koizumi, Kodansha: Microbial Control-Science and Engineering. Also, see, for example, Koichi Takaki, Application of high-voltage / plasma technology to the agricultural / food field, J.HTSJ, Vol.51, No.216). Further, depending on the potential that generates this electric field, a current may flow through a current path formed by humidity or the like, or a circuit formed by a local micro discharge phenomenon or the like. It is considered that this electric current weakens the bacteria and suppresses the growth of the bacteria. The bacteria referred to in the present embodiment include bacteria, fungi, and microorganisms such as mites and fleas. Therefore, the antibacterial thread 100 can directly exert an antibacterial effect by the formed electric field.

Furthermore, the electroporation method is known as one of the mechanisms of cell membrane destruction related to such electrical stimulation (cell perforation mechanism by high voltage pulse-gene transfer method). Basics-Michio Kasai and Hiroko Inaba, p. 1595).

According to the above literature, the condition for electroporation that destroys cell membranes such as bacteria is generally when a potential difference (or voltage) of "1.0 V" is applied to cells, for example, the size of spores is 2 μm or more. In the case of about 10 μm, when an electric field with an electric field strength of 0.1 V / μm or more is generated, a potential difference (or voltage) of 1.0 V or more is applied even in the case of spores having a maximum size of 10 μm. It can cause electroporation to destroy cell membranes, or disrupt the life-sustaining electron transfer system, weakening or killing cells.

It has been reported that the maximum potential generated between the first fiber 11 and the second fiber 12 having different charge trains is 50 to 70 kV (Fiber and Industrial Vol.29, No.9 (1973) Hirakawa). Written by Toshi). In order to form an electric field of 0.1 V / μm or more at which the antibacterial effect is exhibited, the distance between the charged fibers may theoretically be less than 50 cm. The closer the fibers are to each other, the larger the electric field and the higher the potential difference (or voltage) applied to the bacteria. Therefore, the first fiber 11 and the second fiber 12 exhibit higher antibacterial properties.

Further, the antibacterial thread 100 directly exerts an antibacterial effect by an electric field formed in the vicinity of the antibacterial thread 100 or by an electric field generated when the antibacterial thread 100 is close to an object having a predetermined potential such as a human body. Alternatively, the antibacterial thread 100 passes an electric current through moisture such as sweat when it is close to another nearby fiber or an object having a predetermined potential such as a human body. This current may also directly exert an antibacterial effect. Alternatively, reactive oxygen species in which oxygen contained in water is changed by the action of current or voltage, radical species generated by interaction or catalysis with additives contained in fibers, or other antibacterial chemical species (amines). Derivatives, etc.) may indirectly exert an antibacterial effect. Alternatively, oxygen radicals may be generated in the cells of the bacterium due to the stress environment due to the presence of an electric field or an electric current, whereby the antibacterial thread 100 may indirectly exert an antibacterial effect. As the radical, generation of superoxide anion radical (active oxygen) or hydroxyl radical can be considered. The term "antibacterial" as used in the present embodiment is a concept including both an effect of suppressing the growth of bacteria and an effect of killing the bacteria.

Hereinafter, the antibacterial thread 200 according to the second embodiment will be described. FIG. 2 (A) is a partially enlarged view for explaining the configuration of the antibacterial thread 200, and FIG. 2 (B) is a cross-sectional view of the antibacterial thread 200 cut along the line II-II of FIG. 2 (A). Is. In the description of the antibacterial thread 200, only the points different from those of the first embodiment will be described, and the same points will be omitted.

As shown in FIG. 2A, the antibacterial thread 200 includes a first fiber 21 and a second fiber 22. The first fiber 21 and the second fiber 22 are long fibers. The antibacterial yarn 200 is a twisted yarn in which the first fiber 21 and the second fiber 22 are twisted together. The second fiber 22 is arranged so as to face the first fiber 21.

The first fiber 21 comes into contact with or separates from the second fiber 22. Therefore, the first fiber 21 causes friction with the second fiber 22. Further, the first fiber 21 comes into contact with an object other than the second fiber 22 and is rubbed. The second fiber 22 comes into contact with an object other than the first fiber 21 and is rubbed.

As shown in FIG. 2B, the first fiber 21 is positively charged when rubbed. The second fiber 22 is negatively charged when rubbed. The first fiber 21 and the second fiber 22 generate an electric field due to the potential difference between them. Therefore, the antibacterial thread 200 generates an electric field and exhibits antibacterial properties.

Since both the first fiber 21 and the second fiber 22 are long fibers, they are twisted more uniformly than a yarn in which only short fibers are twisted. That is, the shortest distance between the first fiber 21 and the second fiber 22 is substantially uniform. As a result, a uniform and strong electric field is generated between the first fiber 21 and the second fiber 22. Therefore, the antibacterial thread 200 can exhibit high antibacterial properties.

It is sufficient that at least one of the first fiber 21 and the second fiber 22 is a long fiber. For example, a plurality of second fibers 22 which are short fibers may be twisted around the first fiber 21 which is a long fiber. In this case, the shortest distance between the first fiber 21 and the second fiber 22 is to some extent more uniform than that of a yarn obtained by twisting only short fibers. Therefore, the antibacterial thread 200 can exhibit high antibacterial properties. Further, a yarn formed by twisting a plurality of short fibers may be formed, and this yarn may be used as the first fiber 21 and twisted with the second fiber 22 which is a long fiber. Again, the shortest distance between the first fiber 21 and the second fiber 22 is to some extent more uniform than the yarn in which only the short fibers are twisted. Therefore, the antibacterial thread 200 can exhibit high antibacterial properties.

Hereinafter, the antibacterial thread 300 according to the third embodiment will be described. FIG. 3 (A) is a partially enlarged view for explaining the configuration of the antibacterial thread 300, and FIG. 3 (B) is a cross-sectional view of the antibacterial thread 300 cut along the line III-III of FIG. 3 (A). Is. In the description of the antibacterial thread 300, only the points different from those of the first embodiment will be described, and the same points will be omitted.

As shown in FIG. 3A, the antibacterial thread 300 includes a plurality of first fibers 31 and a plurality of second fibers 32. The first fiber 31 and the second fiber 32 are short fibers. The antibacterial yarn 300 is a twisted yarn in which a plurality of first fibers 31 and a plurality of second fibers 32 are twisted together.

Each first fiber 31 causes friction with a plurality of adjacent first fibers 31 or a plurality of adjacent second fibers 32. Similarly, each second fiber 32 also causes friction with a plurality of adjacent first fibers 31 or a plurality of other adjacent second fibers 32. Further, the first fiber 31 comes into contact with and is rubbed against an object other than the other first fiber 31 and the second fiber 32. The second fiber 32 comes into contact with and is rubbed against objects other than the first fiber 31 and other second fibers 32.

As shown in FIG. 3B, the first fiber 31 is positively charged when rubbed. The second fiber 32 is negatively charged when rubbed. The first fiber 31 and the second fiber 32 generate an electric field due to the potential difference between them. Therefore, the antibacterial thread 300 generates an electric field and exhibits antibacterial properties.

Since the first fiber 31 and the second fiber 32 are short fibers, they are intricately intertwined with each other as compared with the case where they are long fibers. Therefore, the antibacterial yarn 300 has a more complicated shape than the yarn obtained by twisting only long fibers. Therefore, the antibacterial yarn 300 is more likely to cause friction than a yarn obtained by twisting only long fibers. Therefore, the antibacterial thread 300 is easily charged and can exhibit high antibacterial properties.

Further, the more complicated the shape of the antibacterial thread 300, the larger the surface area of the antibacterial thread 300. Therefore, the antibacterial yarn 300 comes into contact with the fungus in a wider area than the yarn obtained by twisting only long fibers. Therefore, the antibacterial thread 300 can exhibit high antibacterial properties.

The antibacterial yarn 300 has more voids 34 between the first fibers 31 or the second fibers 32 than the yarn obtained by twisting only long fibers. The antibacterial thread 300 can take in water or bacteria in the void 34. Therefore, the antibacterial yarn 300 is more likely to take in bacteria into a higher electric field space than a yarn obtained by twisting only long fibers, and can exhibit high antibacterial properties.

Hereinafter, the antibacterial cloth 400 according to the fourth embodiment will be described. FIG. 4 (A) is a partially enlarged view for explaining the configuration of the antibacterial cloth 400, and FIG. 4 (B) is a cross-sectional view of the antibacterial cloth 400 cut along the IV-IV line of FIG. 2 (A). Is. In the description of the antibacterial cloth 400, only the points different from those of the first embodiment will be described, and the same points will be omitted.

As shown in FIG. 4A, the antibacterial cloth 400 includes a plurality of first fibers 11, a plurality of second fibers 12, and a plurality of non-charged fibers 43. The antibacterial cloth 400 is a woven fabric. The first fiber 11 is the warp of the antibacterial cloth 400. The second fiber 12 is the warp of the antibacterial cloth 400. The non-charged fiber 43 is a weft of the antibacterial cloth 400. Each of the second fibers 12 is arranged so as to alternately face the first fiber 11.

The antibacterial cloth 400 is not limited to the woven fabric structure. The antibacterial cloth 400 is not limited to the plain weave as shown in FIG. 4 (A), and may be a twill weave or a satin weave. Further, the antibacterial cloth 400 may be made by stacking two woven fabrics like a double weave.

The plurality of first fibers 11 cause friction with the plurality of uncharged fibers 43. The plurality of second fibers 12 cause friction with the plurality of uncharged fibers 43. Further, the first fiber 11 comes into contact with the adjacent second fiber 12 and is rubbed. The second fiber 12 comes into contact with the adjacent first fiber 11 and is rubbed. Further, the first fiber 11 comes into contact with an object other than the antibacterial cloth 400 and is rubbed. The second fiber 12 comes into contact with an object other than the antibacterial cloth 400 and is rubbed.

The first fiber 11 is positively charged when rubbed. The second fiber 12 is negatively charged when rubbed. The non-charged fiber 43 is not charged even when rubbed. As shown in FIG. 4B, the first fiber 11 and the second fiber 12 generate an electric field due to a potential difference between them. Therefore, the antibacterial cloth 400 generates an electric field and exhibits antibacterial properties.

The antibacterial cloth 400 may be a woven fabric composed of only a plurality of first fibers 11 and second fibers 12. For example, the first fiber 11 is the warp of the antibacterial cloth 400, and the second fiber 12 is the weft of the antibacterial cloth 400. Alternatively, the first fiber 11 may be the weft of the antibacterial cloth 400, and the second fiber 12 may be the warp of the antibacterial cloth 400. Further, the first fiber 11 may be contained in both the warp and the weft of the antibacterial cloth 400. Further, the second fiber 12 may be contained in both the warp and the weft of the antibacterial cloth 400. In these cases, the plurality of first fibers 11 and the plurality of second fibers 12 are rubbed against each other and charged respectively. Therefore, the antibacterial cloth 400 generates electric charges in a wider range, and thus exhibits high antibacterial properties.

Hereinafter, the antibacterial cloth 500 according to the fifth embodiment will be described. FIG. 5 (A) is a partially enlarged view for explaining the configuration of the antibacterial cloth 500, and FIG. 5 (B) is a cross-sectional view of the antibacterial cloth 500 cut along the line VV of FIG. 5 (A). Is. In the description of the antibacterial cloth 500, only the points different from the fourth embodiment will be described, and the same points will be omitted.

As shown in FIG. 5A, the antibacterial cloth 500 includes a first fiber 11 and a second fiber 12. The antibacterial cloth 500 is a flat knitted fabric composed of the first fiber 11 and the second fiber 12. The first fiber 11 is woven alternately with the second fiber 12 for each course. The second fiber 12 is arranged alternately in close proximity to the first fiber 11. As a result, the plurality of first fibers 11 are intertwined with the plurality of second fibers 12, respectively. The antibacterial cloth 500 may include non-charged fibers (not shown) that are not charged by friction in addition to the first fibers 11 and the second fibers 12. However, even in this case, the second fiber 12 is arranged close to the first fiber 11.

The first fiber 11 comes into contact with or separates from the second fiber 12. Therefore, the first fiber 11 causes friction with the second fiber 12. Further, the first fiber 11 comes into contact with an object other than the second fiber 12 and is rubbed. The second fiber 12 comes into contact with an object other than the first fiber 11 and is rubbed.

The first fiber 11 is positively charged when rubbed. The second fiber 12 is negatively charged when rubbed. As shown in FIG. 5B, the first fiber 11 and the second fiber 12 generate an electric field due to a potential difference between them. Therefore, the antibacterial cloth 500 generates an electric field and exhibits antibacterial properties.

Hereinafter, the antibacterial cloth 600 according to the sixth embodiment will be described. FIG. 6A is a partially enlarged cross-sectional view for explaining the configuration of the antibacterial cloth 600. In the description of the antibacterial cloth 600, only the points different from the fourth embodiment will be described, and the same points will be omitted.

As shown in FIG. 6A, the antibacterial cloth 600 includes a first sheet 61 and a second sheet 62. The first sheet 61 includes a plurality of first fibers 11. The second sheet 62 includes a plurality of second fibers 12. The first sheet 61 and the second sheet 62 are not limited to the woven fabric structure shown in the antibacterial cloth 400, and may be knitted as shown in the antibacterial cloth 500.

The first sheet 61 is arranged so as to overlap parallel to the second sheet 62 in a plan view. As a result, the first fiber 11 contained in the first sheet 61 and the second fiber 12 contained in the second sheet 62 are arranged to face each other. The distance L between the first fiber 11 contained in the first sheet 61 and the second fiber 12 contained in the second sheet 62 is preferably less than 50 cm. The closer the distance L between the first fiber 11 and the second fiber 12 is, the larger the electric field generated between the first fiber 11 and the second fiber 12, and the potential difference (or voltage) applied to the fungus. ) Is also high, so that the antibacterial cloth 600 can exhibit higher antibacterial properties.

The first sheet 61 and the second sheet 62 may be arranged so as to have surfaces that rub against each other, and are not limited to a structure in which they overlap each other in parallel in a plan view. Hereinafter, a modified example of the antibacterial cloth 600 will be described.

FIG. 6B is a partially enlarged cross-sectional view for explaining the configuration of the antibacterial cloth 601 according to the modified example of the antibacterial cloth 600. FIG. 6C is a partially enlarged cross-sectional view for explaining the configuration of the antibacterial cloth 602 according to the modified example of the antibacterial cloth 600. In the description of the antibacterial cloth 601 and the antibacterial cloth 602, only the points different from the antibacterial cloth 600 will be described, and the same points will be omitted.

As shown in FIG. 6B, the antibacterial cloth 601 includes a first sheet 61 and a second sheet 62. The first sheet 61 and the second sheet 62 are arranged so as to face each other, and the first sheet 61 and the second sheet 62 as a whole are formed in a cylindrical shape. The connecting portion 64 of the first sheet 61 and the second sheet 62 is sewn together. The first sheet 61 and the second sheet 62 have a space 63 between the first sheet 61 and the second sheet 62. As a result, the antibacterial cloth 601 can exhibit antibacterial properties by generating an electric field in the space 63 between the first sheet 61 and the second sheet 62.

As shown in FIG. 6C, the antibacterial cloth 602 includes a first sheet 61 and a second sheet 62. The first sheet 61 and the second sheet 62 are each formed in a cylindrical shape. The inner diameter of the first sheet 61 is larger than the outer diameter of the second sheet 62. The first sheet 61 is arranged so as to cover the second sheet 62. The first sheet 61 and the second sheet 62 have a space 65 between the first sheet 61 and the second sheet 62. As a result, the antibacterial cloth 602 can exhibit antibacterial properties by generating an electric field in the space 65 between the first sheet 61 and the second sheet 62.

The antibacterial cloth 400, the antibacterial cloth 500, or the antibacterial cloth 600 is not limited to woven fabrics or knitted fabrics. For example, the antibacterial cloth 400, the antibacterial cloth 500, or the antibacterial cloth 600 may be a non-woven fabric.

The antibacterial thread 100, the antibacterial thread 200, the antibacterial thread 300, the antibacterial cloth 400, the antibacterial cloth 500, or the antibacterial cloth 600 as described above can be applied to various clothing or products such as medical members. For example, the antibacterial thread 100, the antibacterial thread 200, the antibacterial thread 300, the antibacterial cloth 400, the antibacterial cloth 500, or the antibacterial cloth 600 includes masks, gloves, clothing, underwear (particularly socks, belly band), towels, headbands, wristbands, etc. Sportswear in general, hats, bedding (including cloth, mattresses, sheets, pillows, pillowcases, etc.), water purifiers, air conditioner or air purifier filters, and other pet-related products (pet mats, pet clothes, pets, etc.) Inner clothes), various mats (feet, hands, toilet seats, etc.), bags such as tote bags, laundry nets, packaging materials such as tangerine nets, seats (seats for cars, trains, airplanes, etc.), sofa covers , Bandages, gauze, sutures, clothes for doctors and patients, supporters, sanitary goods, sports goods (inners for clothing and gloves, baskets used in martial arts, etc.), artificial blood vessels, medical parts for surgery, etc. can do.

Finally, the description of this embodiment should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above-described embodiment but by the scope of claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the claims.

11,21,31 ...

1st fiber

12,22,32 ... 2nd fiber 100,200,300 ... Antibacterial thread 400,500 ... Antibacterial cloth

Claims

The first sheet containing the first fiber and
A second sheet, which is arranged facing the first fiber and contains a second fiber made of a material lower than the first fiber in the charged row,
With
At least one of the first fiber and the second fiber is charged by friction or close peeling, and is charged.
An antibacterial cloth in which the distance between the first fiber and the second fiber is less than 50 cm.
The first sheet and the second sheet are formed in a cylindrical shape, are overlapped or sewn together, and have surfaces that rub against each other.
The antibacterial cloth according to claim 1.
The first fiber is made of a piezoelectric material.
The second fiber is made of a piezoelectric material and contains a material lower in the charging column than the first fiber.
The antibacterial cloth according to claim 1 or 2.
The first fiber generates a positive charge due to an external force,
The second fiber generates a negative charge due to an external force.
The antibacterial cloth according to any one of claims 1 to 3.
The first fiber or the second fiber is a long fiber.
The antibacterial cloth according to any one of claims 1 to 4.
The first fiber and the second fiber are long fibers.
The antibacterial cloth according to claim 5.
The first fiber or the second fiber is a short fiber.
The antibacterial cloth according to any one of claims 1 to 4.
The first fiber and the second fiber are short fibers.
The antibacterial cloth according to claim 7.
The first fiber or the second fiber is a knitted material arranged for each course.
The antibacterial cloth according to any one of claims 1 to 8.
The first fiber or the second fiber is arranged on at least one of the warp and the weft.
The antibacterial cloth according to any one of claims 1 to 8.