JP2018075348A - Method for inhibiting bacteria on body surface of animal, anti-trichophyton therapeutic method for animal except human being, and clothing for animal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple method for inhibiting the growth of bacteria on a body surface of an animal, which makes safety higher than in use of a medicine and the like by a simple method, and a method for a treatment against Trichophyton on the body surface of the animal except a human being.SOLUTION: In a method for inhibiting bacteria on a body surface of an animal, a cloth including a piezoelectric material is arranged in a facing manner on at least a part of the skin of the animal, and the growth of the bacteria on the body surface facing the cloth is inhibited by an electric charge generated when an external force is applied to the piezoelectric material.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for controlling bacteria on the surface of an animal body, a method for treating tinea fungus on animals other than humans, and an animal clothing having antibacterial properties.

  Conventionally, it is known that animals other than humans (hereinafter referred to as “animals”) such as dogs, cats or hamsters also suffer from skin diseases caused by ringworm bacteria, etc., and a method for treating ringworm bacteria in animals Have been proposed (Patent Document 1, Patent Document 2 and Patent Document 3).

  In addition, a large number of bacteria (bacteria and fungi) such as bartonella, staphylococci, salmonella and ringworm are resident in the skin and hair (hereinafter referred to as body surface) of the above animals, and humans who have come into contact with these May infect bacteria. On the other hand, a method of suppressing the growth of bacteria that are resident on the body surface by bathing the animal regularly (washing the body surface of the animal) is conceivable.

JP 2004-224720 A JP 2007-332126 A Japanese Patent Laid-Open No. 2002-272861 JP 2006-67878 A JP 2001-333655 A

  However, the above-mentioned method for treating ringworm bacteria may cause an allergic reaction due to drugs or the like. Also, it is very difficult to frequently wash away the body surface of animals that dislike water or large animals.

  An object of the present invention is to use a simple method to suppress the growth of bacteria on the surface of an animal body, which is safer than the use of drugs, etc., and a method for treating ringworm fungus on the surface of an animal body other than humans Is to provide.

  Another object of the present invention is to provide an animal garment that is safer than drugs and that can suppress the growth of bacteria on the surface of the body.

(1) The method for inhibiting bacteria on the surface of an animal body of the present invention comprises:
Arrange the cloth containing the piezoelectric material to face at least a part of the animal's skin,
It is characterized in that the growth of bacteria on the surface of the animal body facing the cloth is suppressed by the charge generated when an external force is applied to the piezoelectric body.

  Conventionally, it has been known that the growth of bacteria can be suppressed by an electric field (see, for example, Tetsuaki Tudo, Hironori Korai, Hideaki Matsuoka, Junichi Koizumi, Kodansha: Microbial Control-Science and Engineering. (For example, see Koichi Takagi, Application of High Voltage / Plasma Technology to Agriculture / Food Field, J.HTSJ, Vol.51, No.216). In addition, the electric current generating the electric field may cause a current to flow through a current path formed by moisture or a circuit formed by a local micro discharge phenomenon. It is conceivable that the cell membrane of the fungus is partially destroyed by this current, thereby suppressing the growth of the fungus. In the present invention, when a garment is attached to an animal, an electric field is generated between the fibers of the cloth or an electric current flows due to the movement of the animal. Alternatively, since the cloth is disposed close to at least a part of the animal's skin, when an external force is applied to the cloth, an electric field is generated or an electric current flows between the animal's skin and the cloth. . Therefore, the growth of bacteria on the cloth itself can be suppressed only by wearing the clothing of the present invention on an animal. Alternatively, the growth of malignant bacteria (bacteria and fungi) on the body surface (skin and hair) of the animal facing the cloth is suppressed, and the generation of malodor caused by the growth of the bacteria on the body surface and hair can be suppressed.

  Moreover, since the cloth in the present invention generates an electric field by piezoelectricity, no power source is required and there is no fear of electric shock. In addition, the lifetime of the piezoelectric body lasts longer than the antibacterial effect of drugs and the like. In addition, the risk of an allergic reaction is lower than that of drugs.

(2) In the above (1), the cloth may be woven with a plurality of yarns made of the piezoelectric material.

(3) In the above (2), the plurality of threads include a first thread made of a first piezoelectric body and a second thread made of a second piezoelectric body, The first yarn and the second yarn are woven, and the first yarn generates a positive charge when an external force is applied, and the second yarn is an external force. It is preferred to generate a negative charge when is added. With this configuration, the cloth alone can generate an electric field, and an antibacterial effect can be generated.

(4) In the above (3), the first yarn and the second yarn may be arranged in parallel. The strength of the electric field increases in inverse proportion to the distance between the substances that generate the charge. With this configuration, the distance between the first yarn and the second yarn can be reduced, so that the strength of the electric field generated by the cloth can be set to a very large value. Therefore, a high antibacterial action can be produced in the cloth.

(5) In the above (3) or (4), the first yarn and the second yarn may be arranged so as to intersect with each other.

(6) In any one of the above (3) to (5), the plurality of yarns include a third yarn in which the first yarn and the second yarn are assembled as a braid. It may be.

(7) In any one of the above (1) to (6), it is preferable that clothing including the cloth is attached to the animal. With this configuration, it is possible to suppress the growth of bacteria on the surface of the animal body simply by attaching the clothing to the animal.

(8) In the above (1), the piezoelectric body may be a piezoelectric polymer.

(9) In any one of the above (1) to (7), the piezoelectric body may be a piezoelectric polymer, and the yarn may be formed by twisting the piezoelectric polymer.

(10) In the above (8) or (9), the piezoelectric polymer may contain polylactic acid.

(11) The method for treating tinea fungus on animals other than humans according to the present invention uses the method for inhibiting bacteria on the body surface of any one of the above (1) to (10).

(12) The animal clothing of the present invention is
With a cloth containing a piezoelectric body,
It is characterized in that the growth of bacteria is suppressed by electric charges generated when an external force is applied to the piezoelectric body.

  Conventionally, it has been known that the growth of bacteria can be suppressed by an electric field (see, for example, Tetsuaki Tudo, Hironori Korai, Hideaki Matsuoka, Junichi Koizumi, Kodansha: Microbial Control-Science and Engineering. (For example, see Koichi Takagi, Application of High Voltage / Plasma Technology to Agriculture / Food Field, J.HTSJ, Vol.51, No.216). Alternatively, a current may flow through a current path formed by moisture or a circuit formed by a local micro discharge phenomenon or the like due to a potential generating an electric field. It is conceivable that the cell membrane of the fungus is partially destroyed by this current, thereby suppressing the growth of the fungus. In the present invention, when a garment is attached to an animal, an electric field is generated between the fibers of the cloth or an electric current flows due to the movement of the animal. Alternatively, since the cloth is disposed in close proximity to face at least a part of the animal's skin, when an external force is applied to the cloth, an electric current is generated between the animal's skin and the cloth to generate an electric field. Furthermore, oxygen contained in moisture may be changed to reactive oxygen species by an electric field or current, or oxygen radicals may be generated in the cells of a bacterium due to a stress environment due to the presence of an electric field or current. Fungi are killed or weakened by the action of reactive oxygen species containing these radicals. In addition, the above reasons may be combined to produce an antibacterial effect (an effect of suppressing the growth of bacteria) and a bactericidal effect. Therefore, by wearing the clothing of the present invention on an animal, the growth of malignant bacteria (bacteria / fungi) on the body surface (skin and hair) of the animal facing the cloth is suppressed, and the growth of the bacteria on the body surface and body hair is suppressed. It is also possible to suppress the generation of malodor caused by the above.

  Moreover, since the cloth in the present invention generates an electric field by piezoelectricity, no power source is required and there is no fear of electric shock. In addition, the lifetime of the piezoelectric body lasts longer than the antibacterial effect of drugs and the like. In addition, the risk of an allergic reaction is lower than that of drugs.

(13) In the above (12), it is preferable that the cloth is arranged so as to face the skin of an animal when worn. By wearing the clothing according to the present invention, healing of skin diseases caused by ringworm bacteria and the like is promoted.

(14) In the above (12) or (13), the cloth may be woven with a plurality of yarns made of the piezoelectric material.

(15) In the above (14), the plurality of threads includes a first thread made of a first piezoelectric body and a second thread made of a second piezoelectric body, The first yarn and the second yarn are woven, and the first yarn generates a positive charge on the surface when an external force is applied, and the second yarn is It is preferable to generate a negative charge on the surface when an external force is applied. With this configuration, the cloth alone can generate an electric field, and an antibacterial effect can be generated.

(16) In the above (15), it is preferable that the first yarn and the second yarn are arranged in parallel. The strength of the electric field increases in inverse proportion to the distance between the substances that generate the charge. With this configuration, the distance between the first yarn and the second yarn can be reduced, so that the strength of the electric field generated by the cloth can be set to a very large value. Therefore, a high antibacterial action can be produced in the cloth.

(17) In the above (15) or (16), the first yarn and the second yarn may be arranged so as to intersect each other.

(18) In any of the above (15) to (17), the plurality of yarns include a third yarn in which the first yarn and the second yarn are assembled as a braid. May be.

(19) In the above (12) or (13), the piezoelectric body may be a piezoelectric polymer.

(20) In any one of the above (14) to (18), the piezoelectric body may be a piezoelectric polymer, and the yarn may be formed by twisting the piezoelectric polymer.

(21) In the above (19) or (20), the piezoelectric polymer may contain polylactic acid.

  According to the present invention, a method for suppressing the growth of bacteria on the surface of an animal body, which is safer than the use of drugs, etc. by a simple method, and a method for treating ringworm fungus on the surface of an animal body excluding humans Can be realized.

  Further, according to the present invention, it is possible to realize an animal garment that is safer than drugs and that can suppress the growth of bacteria on the body surface.

FIG. 1A is an external view of an animal garment 101 according to the first embodiment, and FIG. 1B is an external view showing a state in which the animal garment 101 is mounted on a dog 201. . FIG. 2A is a schematic plan view of the cloth 100, and FIG. 2B is a diagram illustrating an electric field generated between the yarns. FIG. 3A is a partially exploded view showing the configuration of the piezoelectric yarn 1, and FIG. 3B is a partially exploded view showing the configuration of the piezoelectric yarn 2. FIG. 4 is a plan view of the piezoelectric film 10. FIGS. 5A and 5B are diagrams showing the relationship between the uniaxial stretching direction of polylactic acid, the electric field direction, and the deformation of the piezoelectric film 10. 6A is a diagram showing the piezoelectric yarn 1 when an external force is applied, and FIG. 6B is a diagram showing the piezoelectric yarn 2 when an external force is applied. FIG. 7A is an external view of an animal garment 102 according to the second embodiment, and FIG. 7B is an external view showing a state in which the animal garment 102 is attached to a cat 202. FIG. 8A is an external view of an animal garment 103 according to the third embodiment, and FIG. 8B is an external view showing a state in which the animal garment 103 is mounted on a dog 201. FIG. 9A is a schematic plan view of a fabric 100A according to the fourth embodiment, and FIG. 9B is a diagram showing an electric field generated between the yarns. FIG. 10A is a partially exploded view showing the configuration of the piezoelectric yarn 31, and FIG. 10B is a partially exploded view showing the configuration of the piezoelectric yarn 32. FIG. 11A is a partially exploded view showing the configuration of the piezoelectric yarn 33, and FIG. 11B is a partially exploded view showing the configuration of the piezoelectric yarn 34. FIG. 12 is an exaggerated view of the gap between the piezoelectric films 10 in the piezoelectric yarn 33. FIG. 13 is a partially exploded view showing the configuration of the piezoelectric yarn 35. FIG. 14 is a diagram showing the configuration of the piezoelectric yarn 36.

  Hereinafter, several specific examples will be given with reference to the drawings to show a plurality of modes for carrying out the present invention. In each figure, the same reference numerals are assigned to the same portions. In consideration of ease of explanation or understanding of the main points, the embodiments are shown separately for convenience, but the components shown in different embodiments can be partially replaced or combined. In the second and subsequent embodiments, description of matters common to the first embodiment is omitted, and only different points will be described. In particular, the same operation effect by the same configuration will not be sequentially described for each embodiment.

<< First Embodiment >>
FIG. 1A is a view showing a lining portion of animal clothing 101 according to the first embodiment, and FIG. 1B is an external view showing a state where animal clothing 101 is attached to dog 201. FIG. In FIG. 1A, the cloth 100 is indicated by hatching.

  The garment 101 includes a cloth 100 including a piezoelectric body. The clothing 101 according to the present embodiment is a clothing for animals, for example, a clothing for dogs.

  As shown in FIGS. 1 (A) and 1 (B), the garment 101 uses a cloth 100 for almost the entire lining, and is attached to a dog 201 (animal). Therefore, the cloth 100 is arranged so as to face the dog's skin when worn. In the garment 101, the cloth 100 may be provided on a part of the lining.

  “Animal” refers to, for example, pets, animals bred at zoos, animals bred as livestock, and the like. The “animal” in the present invention is, for example, a mammal other than a human (dog, cat, hamster, squirrel, rabbit, deer, sheep, goat, horse, cow, pig, elephant, giraffe, monkey, chimpanzee, etc.), reptile (crocodile) , Lizards, iguanas, snakes, turtles, etc.), birds (pives, parakeets, parrots, nine-birds, eagle, hawks, frogs, etc.).

  In addition, “clothing” in the present invention refers to all articles worn by animals. Examples of the “clothing” in the present invention include not only general clothes (clothes, shirts, hats, hoods, trousers, pants, socks, shoes, mufflers, stalls, scarves, gloves, cloaks, swimsuits, rain gears, etc.) Hygiene materials (bandages, gauze, bandages, pads, tapes, supporters, masks) used during treatment are also included.

  In addition, the “wearing” in the present invention refers to all actions to be worn. In the “mounting” in the present invention, for example, not only the act of wearing general clothing (wearing, wearing, wearing, putting on, wrapping, fastening, etc.) but also the act of wearing sanitary materials (pasting, winding, fastening) , Etc.) are also included.

  Next, the cloth 100 used for the lining of the clothing 101 will be described with reference to the drawings. FIG. 2A is a schematic plan view of the cloth 100, and FIG. 2B is a diagram illustrating an electric field generated between the yarns.

  The cloth 100 is formed by weaving a piezoelectric yarn 1 made of a piezoelectric material, a piezoelectric yarn 2 made of a piezoelectric material, and a normal yarn 3. The ordinary yarn 3 is a yarn not provided with a piezoelectric body and corresponds to a dielectric.

  As shown in FIG. 2B, the piezoelectric yarn 1, the piezoelectric yarn 2, and the ordinary yarn 3 are arranged in parallel. The piezoelectric yarn 1 and the piezoelectric yarn 2 are arranged apart from each other by a predetermined distance via a normal yarn 3 corresponding to a dielectric.

  As will be described later, when the piezoelectric yarn 1 is pulled in the axial direction, a negative charge is generated on the surface. Further, as will be described later, when the piezoelectric yarn 2 is pulled in the axial direction, a positive charge is generated on the surface.

  Therefore, when an external force is applied to these yarns, an electric field is generated between the piezoelectric yarn 2 that generates a positive charge and the piezoelectric yarn 1 that generates a negative charge. When the piezoelectric yarn 1 and the piezoelectric yarn 2 are close to each other, the adjacent portions try to have the same potential. If the potential of this same potential portion (the portion where the piezoelectric yarn 1 and the piezoelectric yarn 2 are close to each other) is 0 V, in the piezoelectric yarn 1 that generates a negative charge on the surface, the portion corresponding to the core of the yarn has a positive charge. Become. Conversely, in the piezoelectric yarn 2, the portion corresponding to the core of the yarn is negatively charged. In the space around the piezoelectric yarn 1, an electric field from the yarn core to the outside is formed, and in the space around the piezoelectric yarn 2, an electric field from the outside of the yarn to the core is formed. As a result of combining these electric fields, an electric field indicated by a white arrow in FIG. 2B is generated between the piezoelectric yarn 1 and the piezoelectric yarn 2. That is, the cloth 100 functions as a cloth that generates an electric field.

  Since the piezoelectric yarn 1, the piezoelectric yarn 2, and the ordinary yarn 3 are arranged in a very close state, the distance is almost zero. As represented by E = V / d, the intensity of the electric field increases in inverse proportion to the distance between the substances that generate charges, and therefore the intensity of the electric field generated by the cloth 100 is a very large value.

  Next, the structure of the piezoelectric yarn 1 and the piezoelectric yarn 2 will be described with reference to the drawings. FIG. 3A is a partially exploded view showing the configuration of the piezoelectric yarn 1, and FIG. 3B is a partially exploded view showing the configuration of the piezoelectric yarn 2. FIG. 4 is a plan view of the piezoelectric film 10.

  The piezoelectric yarn 1 and the piezoelectric yarn 2 are obtained by winding a piezoelectric film 10 around a core yarn 11. The piezoelectric film 10 is an example of the “piezoelectric body” in the present invention. The core yarn 11 is appropriately selected from cotton, silk, or general synthetic fiber. The core yarn 11 may be a conductive yarn having conductivity. When the core yarn 11 is a conductive yarn, the piezoelectric yarn 1 is used with the electrode formed on a part of the outer periphery of the piezoelectric yarn 1 (or the piezoelectric yarn 2) and the core yarn 11 when inspecting the piezoelectricity of the piezoelectric yarn. The electric charge generated in 1 (or piezoelectric yarn 2) can be measured. Thereby, the piezoelectric performance of the piezoelectric film 10 used for the piezoelectric yarn 1 and the piezoelectric yarn 2 can be inspected. In addition, by short-circuiting the conductive yarns, a clear circuit is formed between the yarns, and the electric field generated between the surfaces of the yarns increases dramatically.

  The piezoelectric film 10 is made of, for example, a piezoelectric polymer. Some piezoelectric films have pyroelectric properties and others do not have pyroelectric properties. For example, PVDF (polyvinylidene fluoride) has pyroelectricity, and charges are generated even when the temperature changes. Polylactic acid (PLA) is a piezoelectric film that does not have pyroelectricity. Polylactic acid produces piezoelectricity by being uniaxially stretched. Polylactic acid includes PLLA in which an L monomer is polymerized and PDLA in which a D monomer is polymerized.

A chiral polymer such as polylactic acid has a helical structure in the main chain. A chiral polymer has piezoelectricity when uniaxially stretched and the molecules are oriented. Piezoelectric film 10 made of uniaxially stretched polylactic acid has a thickness direction defined as a first axis, stretch direction 900 defined as a third axis, and a direction perpendicular to both the first axis and the third axis as a second axis. having a tensor components of _{d 14} and _{d 25} as the piezoelectric strain constant. Therefore, polylactic acid generates an electric charge when distortion occurs in a direction of 45 degrees with respect to the uniaxially stretched direction.

  FIGS. 5A and 5B are diagrams showing the relationship between the uniaxial stretching direction of polylactic acid, the electric field direction, and the deformation of the piezoelectric film 10. 6A is a diagram showing the piezoelectric yarn 1 when an external force is applied, and FIG. 6B is a diagram showing the piezoelectric yarn 2 when an external force is applied.

  As shown in FIG. 5A, when the piezoelectric film 10 contracts in the direction of the first diagonal line 910A and extends in the direction of the second diagonal line 910B orthogonal to the first diagonal line 910A, the piezoelectric film 10 extends in the direction from the back side to the front side. Generates an electric field. That is, the piezoelectric film 10 generates a negative charge on the front side of the sheet. As shown in FIG. 5B, the piezoelectric film 10 generates electric charge when it extends in the direction of the first diagonal line 910A and contracts in the direction of the second diagonal line 910B, but the polarity is reversed and the surface of the paper surface An electric field is generated in the direction from the back to the back. That is, the piezoelectric film 10 generates a positive charge on the front side of the sheet.

  Since polylactic acid generates piezoelectricity by molecular orientation treatment by stretching, it is not necessary to perform poling treatment unlike other piezoelectric polymers such as PVDF or piezoelectric ceramics. The piezoelectric constant of uniaxially stretched polylactic acid is about 5 to 30 pC / N, and has a very high piezoelectric constant among polymers. Furthermore, the piezoelectric constant of polylactic acid does not vary with time and is extremely stable.

  The piezoelectric film 10 is produced by cutting the uniaxially stretched polylactic acid sheet as described above to a width of about 0.5 to 2 mm, for example. As shown in FIG. 4, the major axis direction of the piezoelectric film 10 and the stretching direction 900 coincide with each other.

  As shown in FIG. 3A, the piezoelectric yarn 1 is a left turning yarn (hereinafter referred to as S yarn) in which the piezoelectric film 10 is twisted by turning left with respect to the core yarn 11. The drawing direction 900 is inclined 45 degrees to the left with respect to the axial direction of the piezoelectric yarn 1. Therefore, as shown in FIG. 6A, when an external force is applied to the piezoelectric yarn 1, the piezoelectric film 10 is in the state shown in FIG. 5A and generates a negative charge on the surface. As a result, the piezoelectric yarn 1 generates a negative charge on the surface when an external force is applied.

  As shown in FIG. 3B, the piezoelectric yarn 2 is a right turning yarn (hereinafter referred to as a Z yarn) in which the piezoelectric film 10 is twisted by turning clockwise with respect to the core yarn 11. The drawing direction 900 is inclined 45 degrees to the right with respect to the axial direction of the piezoelectric yarn 2. Therefore, as shown in FIG. 6B, when an external force is applied to the piezoelectric yarn 2, the piezoelectric film 10 is in the state shown in FIG. 5B and generates a positive charge on the surface. As a result, the piezoelectric yarn 2 generates a negative charge on the surface when an external force is applied.

  Conventionally, it has been known that the growth of bacteria can be suppressed by an electric field (see, for example, Tetsuaki Tudo, Hironori Korai, Hideaki Matsuoka, Junichi Koizumi, Kodansha: Microbial Control-Science and Engineering. (For example, see Koichi Takagi, Application of High Voltage / Plasma Technology to Agriculture / Food Field, J.HTSJ, Vol.51, No.216). Alternatively, a current may flow through a current path formed by moisture or a circuit formed by a local micro discharge phenomenon or the like due to a potential generating an electric field. Oxygen contained in moisture may be changed to reactive oxygen species by an electric field or current, or oxygen radicals may be generated in the cells of a bacterium due to a stress environment due to the presence of an electric field or current. Fungi are killed or weakened by the action of reactive oxygen species containing these radicals. In addition, the above reasons may be combined to produce an antibacterial effect (an effect of suppressing the growth of bacteria) and a bactericidal effect. Therefore, it is considered that the cloth 100 exhibits an antibacterial effect due to an electric field generated by itself and a change in its strength. In addition, the bacterium referred to in the present embodiment includes bacteria, fungi, or microorganisms such as mites and fleas.

  The clothing 101 according to this embodiment has the following effects.

(A) Since the cloth 100 according to this embodiment generates an electric field by piezoelectricity, a power source is unnecessary and there is no fear of electric shock. In addition, the lifetime of the piezoelectric body lasts longer than the antibacterial effect of drugs and the like. In addition, the risk of an allergic reaction is much lower than that of drugs. In addition, the cloth 100 generates an electric field with the cloth itself by the piezoelectric yarn 1 and the piezoelectric yarn 2 constituting the cloth 100. Therefore, an antibacterial action and an antifungal action are directly exerted on the bacteria moving to the cloth 100. Alternatively, the cloth 100 passes an electric current when it is close to an object having a predetermined potential such as an animal through moisture such as sweat. This current may also directly exert an antibacterial effect or a bactericidal effect. Or radical species whose oxygen contained in moisture has been changed by the action of electric current or voltage, and radical species and other antibacterial chemical species (amine derivatives, etc.) produced by interaction with and / or catalytic action of additives contained in the fiber. ) May indirectly exert antibacterial or bactericidal effects. As the radical species to be generated, a superoxide anion radical (active oxygen), a hydroxy radical, or the like can be considered. In addition, oxygen radicals may be generated in bacterial cells due to a stress environment due to the presence of an electric field or current. Fungi are killed or weakened by the action of reactive oxygen species containing these radicals. In addition, the above reasons may be combined to produce an antibacterial effect (an effect of suppressing the growth of bacteria) and a bactericidal effect. As will be described later, the garment 101 can be used as a garment for treating an animal suffering from a skin disease caused by ringworm.

  Moreover, the following effects are produced by wearing the clothing 101 according to the present embodiment on an animal.

(B) The piezoelectric yarn 1 and the piezoelectric yarn 2 constituting the cloth 100 generate an electric field when close to the potential of the animal's skin (including the ground potential). In the present embodiment, when the garment 101 is attached to an animal, the cloth 100 is disposed in close proximity so as to face at least a part of the skin of the animal, so that the cloth 100 (the piezoelectric yarn 1 and the piezoelectric yarn 2) is placed. When an external force is applied, an electric field is generated between the animal's skin and the cloth 100. Therefore, the growth of malignant bacteria (bacteria) on the body surface (skin and hair) of the animal facing the cloth 100 is suppressed only by wearing the clothing 101 on the animal, resulting from the growth of bacteria on the body surface and body hair. Odor generation can also be suppressed.

(C) Similarly, the growth of ringworm fungi and the like (fungi) on the skin of the animal facing the cloth 100 is suppressed only by wearing the clothing 101 on the animal. That is, by wearing the garment 101 according to this embodiment, healing of skin diseases caused by ringworm bacteria and the like is promoted.

  Further, since the animal constantly moves around, external force is applied to the cloth 100 (piezoelectric yarn 1 and piezoelectric yarn 2) many times, and an electric field is generated between the skin of the animal and the cloth 100. Therefore, as shown in this embodiment, the antibacterial and deodorizing effects on the body surface by wearing the clothing 101 on an animal are high.

  In addition, when the clothing 101 is attached to an animal, the animal skin and the cloth 100 are more likely to be in close contact with each other when there is no body hair in the portion facing the cloth 100, so that the antibacterial and antifungal effects described above are enhanced. It is done. When the animal skin and the cloth 100 are in close contact with each other, the distance between the animal skin and the cloth 100 is shortened. Therefore, the strength of the electric field at the portion where the animal skin and the cloth 100 are opposed to each other is very large. Value. Therefore, it is thought that the treatment effect of the skin disease by the ringworm bacteria and the like is enhanced by shaving the hair around the part where the skin disease due to the ringworm bacteria has developed.

  Many bacteria have a negative charge. Therefore, the piezoelectric yarn 2 can adsorb many bacteria by the positive charge generated when an external force is applied. In addition, by using a cloth woven with only the piezoelectric yarn 2 for clothing, bacteria having negative charges can be inactivated.

  In the present embodiment, a piezoelectric film is shown as an example of the piezoelectric body. However, the piezoelectric body is, for example, a thread that is ejected from a nozzle as a thread and stretched (a piezoelectric thread having a substantially circular cross section or an irregular cross section). Piezoelectric yarn). For example, polylactic acid (PLLA) piezoelectric yarns can be made through melt spinning, high draw processing, or heat treatment (for crystallization). Such a yarn (multifilament yarn) formed by twisting a plurality of PLLA piezoelectric yarns (filaments) may be configured. Even when tension is applied to such a multifilament yarn, a negative charge is generated on the surface of the S yarn, and a positive charge is generated on the surface of the Z yarn. Such yarn can be simply twisted without using the core yarn. Such yarn can be manufactured at low cost. The number of filaments of the multifilament yarn is set in consideration of the use of the yarn. The number of twists is also set as appropriate. Filaments that are not partially piezoelectric bodies may be included in the plurality of filaments. Further, the thickness of each filament may not be uniform. If the thicknesses of the plurality of filaments are not uniform, the potential distribution generated in the cross section of the yarn is biased and the symmetry is lost, so that an electric field circuit between the S yarn and the Z yarn is easily formed.

  Further, in the present embodiment, an example of a yarn in which the piezoelectric film 10 is twisted around the core yarn 11 is shown, but the core yarn 11 is not necessarily required for both the S yarn and the Z yarn. Even without the core yarn 11, it is possible to turn the piezoelectric film 10 in a spiral shape to obtain a piezoelectric yarn (swivel yarn). When the core yarn 11 is not present, the swirl yarn becomes a hollow fiber, and the heat retaining ability is improved. Further, when the swirl yarn itself is impregnated with an adhesive, the strength can be increased. A twisted yarn in which a piezoelectric yarn having a circular cross section is twisted without a core yarn may be used. Such a yarn can be produced at low cost.

  Further, the piezoelectric yarn only needs to generate a charge when energy is applied, and for example, the above-described PVDF is also useful. A piezoelectric material having a pyroelectric property such as PVDF generates a charge on the surface by the heat energy of the animal body surface. Thereby, the piezoelectric body which has pyroelectricity, such as PVDF, exhibits an antibacterial effect. That is, the piezoelectric yarn of the present invention may be any piezoelectric body as long as it generates a charge when an external force is applied.

  Furthermore, any known method may be adopted as a method for manufacturing the piezoelectric yarn. For example, a method of extruding a piezoelectric polymer into a fiber, a method of melt-spinning the piezoelectric polymer to make a fiber, a method of fiberizing the piezoelectric polymer by dry or wet spinning, or a piezoelectric polymer It is possible to adopt a technique for forming a fiber by electrostatic spinning.

  In each of the embodiments described above, an example is shown in which the fabric 100 is a combination of S yarn and Z yarn made of the same polylactic acid (for example, PLLA), but for example, S yarn made of PLLA and PDLA The same effect is exhibited when combining S yarns. Further, the same effect can be achieved when a Z yarn made of PLLA and a Z yarn made of PDLA are combined.

<< Second Embodiment >>
In 2nd Embodiment, the example of the clothing for animals different from 1st Embodiment is shown.

  FIG. 7A is an external view of an animal garment 102 according to the second embodiment, and FIG. 7B is an external view showing a state in which the animal garment 102 is attached to a cat 202.

  The garment 102 includes a cloth including a piezoelectric body. The clothing 102 according to the present embodiment is a clothing for animals, for example, a clothing for cats.

  The garment 102 uses cloth (cloth 100 shown in the first embodiment) for at least a part of the lining, and is attached to a cat (animal). Therefore, the cloth (the cloth 100 shown in the first embodiment) is arranged so as to face the cat's skin when worn.

  Thus, even if the animal to which the clothing is worn is different, simply by wearing the clothing 102 on the animal, the body surface (skin and hair) of the animal facing the fabric (the fabric 100 shown in the first embodiment) The growth of malignant bacteria (bacteria) is suppressed, and the generation of malodor caused by the growth of bacteria on the body surface and body hair can also be suppressed.

<< Third Embodiment >>
In the third embodiment, an example in which animal clothing is a sanitary material is shown.

  FIG. 8A is an external view of an animal garment 103 according to the third embodiment, and FIG. 8B is an external view showing a state in which the animal garment 103 is mounted on a dog 201. In FIG. 8A, the cloth 100 is indicated by hatching.

  The garment 103 includes a cloth 100 including a piezoelectric body. The garment 103 according to the present embodiment is a sanitary material (medical member) for animals, for example, a dog supporter.

  The garment 103 is made of cloth 100 over almost the entire surface of the lining, and is attached to the dog (animal) foot. Therefore, the cloth 100 is arranged so as to face the dog's skin when worn.

  Thus, the garment in the present invention may be a sanitary material (bandage, gauze, bandage, pad, tape, supporter, mask) or the like.

<< Fourth Embodiment >>
In the fourth embodiment, an example different from the cloth shown in the first embodiment is shown.

  FIG. 9A is a schematic plan view of a fabric 100A according to the fourth embodiment, and FIG. 9B is a diagram showing an electric field generated between the yarns.

  As shown in FIG. 9B, in the cloth 100A, the piezoelectric yarn 1, the piezoelectric yarn 2, and the ordinary yarn 3 are arranged so as to intersect each other. Even in such a configuration, an electric field is generated at a position where the piezoelectric yarn 1 and the piezoelectric yarn 2 intersect.

  In each of the embodiments described above, an example of a cloth in which the piezoelectric yarn 1, the piezoelectric yarn 2, and the ordinary yarn 3 are woven is shown, but the present invention is not limited to this configuration. The cloth according to the present invention has a configuration in which a plurality of yarns made of a piezoelectric material are knitted like the test sample used in the quantitative test (antibacterial evaluation, antifungal evaluation) in the first embodiment. May be. Moreover, the nonwoven fabric which made the sheet | seat form intertwined without woven the piezoelectric fiber may be sufficient.

<< Fifth Embodiment >>
In the fifth embodiment, an example different from the yarn shown in the first embodiment is shown.

  FIG. 10A is a partially exploded view showing the configuration of the piezoelectric yarn 31, and FIG. 10B is a partially exploded view showing the configuration of the piezoelectric yarn 32.

  The piezoelectric yarn 31 is obtained by further winding a piezoelectric film 10 on a piezoelectric covering yarn 1A that is an S yarn. The piezoelectric yarn 32 is obtained by further winding the piezoelectric film 10 on the piezoelectric covering yarn 2A that is a Z yarn.

  As shown in FIG. 10A, the piezoelectric yarn 31 is a left turning yarn (S yarn) in which the piezoelectric film 10 is covered by turning to the left with respect to the piezoelectric covering yarn 1A. The drawing direction 900 is inclined 45 degrees to the left with respect to the axial direction of the piezoelectric yarn 31. The drawing direction 900 coincides with the drawing direction 900A of the piezoelectric covering yarn 1A. The piezoelectric covering yarns 1A and 2A may be twisted yarns that do not include a core yarn. The core yarn may be a conductive yarn.

  When the piezoelectric yarn 31 is pulled in the axial direction (when an external force is applied), a negative charge is generated on the surface of the piezoelectric covering yarn 1A. On the other hand, positive charges are generated on the back surface of the piezoelectric film 10 facing the surface of the piezoelectric covering yarn 1A. When the surface of the piezoelectric covering yarn 1A and the back surface of the piezoelectric film 10 are completely adhered, this portion has the same potential. However, an electric field is generated in the gap when a potential difference is defined in a gap or the like that occurs accidentally due to expansion and contraction of the yarn. The potential difference at each location is defined by an electric field coupling circuit formed by intricately intertwining the yarns, or a circuit formed by a current path accidentally formed in the yarns by moisture or the like. When the circuit is formed, the strength of the electric field increases in inverse proportion to the distance between the substances that generate electric charges. Therefore, the strength of the electric field generated between the surface of the piezoelectric covering yarn 1A and the back surface of the piezoelectric film 10 is It can be very high. That is, this configuration further enhances the antibacterial action and antifungal action of the yarn itself. When the piezoelectric yarn 31 is pulled in the axial direction (when an external force is applied), a negative charge is generated on the surface of the piezoelectric yarn 31 (the surface of the piezoelectric film 10). Therefore, an electric field can also be generated between the yarns by combining with a yarn (piezoelectric yarn 32 described later) in which a positive charge is generated on the surface.

  On the other hand, as shown in FIG. 10B, the piezoelectric yarn 32 is a right turning yarn (Z yarn) covered by turning the piezoelectric film 10 clockwise with respect to the piezoelectric covering yarn 2A. The drawing direction 900 is inclined 45 degrees to the right with respect to the axial direction of the piezoelectric yarn 32. The drawing direction 900 coincides with the drawing direction 900A of the piezoelectric covering yarn 2A.

  When the piezoelectric yarn 32 is pulled in the axial direction (when an external force is applied), a positive charge is generated on the surface of the piezoelectric covering yarn 2A (the surface of the piezoelectric film 10). On the other hand, negative charges are generated on the back surface of the piezoelectric film 10 facing the surface of the piezoelectric covering yarn 2A. When the surface of the piezoelectric covering yarn 2A and the back surface of the piezoelectric film 10 are completely adhered, this portion has the same potential. However, an electric field is generated in the gap when a potential difference is defined in a gap or the like that occurs accidentally due to expansion and contraction of the yarn. The potential difference at each location is defined by an electric field coupling circuit formed by intricately intertwining the yarns, or a circuit formed by a current path accidentally formed in the yarns by moisture or the like. When the circuit is formed, the strength of the electric field increases in inverse proportion to the distance between the substances that generate electric charges. Therefore, the strength of the electric field generated between the surface of the piezoelectric covering yarn 2A and the back surface of the piezoelectric film 10 is It can be very high. That is, with this configuration, as in the case of the piezoelectric yarn 31, the antibacterial and antifungal effects of the yarn itself are further enhanced. When the piezoelectric yarn 32 is pulled in the axial direction (when an external force is applied), a positive charge is generated on the surface of the piezoelectric yarn 32 (the surface of the piezoelectric film 10A). Therefore, an electric field can be generated between the yarns by combining with a yarn that produces a negative charge on the surface like the piezoelectric yarn 31.

  Further, the yarn according to the present invention may have the following configuration. FIG. 11A is a partially exploded view showing the configuration of the piezoelectric yarn 33, and FIG. 11B is a partially exploded view showing the configuration of the piezoelectric yarn 34.

  The piezoelectric yarn 33 is formed by winding the piezoelectric film 10 on the piezoelectric covering yarn 1A. The piezoelectric yarn 34 is formed by winding the piezoelectric film 10 around the piezoelectric covering yarn 2A.

  As shown in FIG. 11A, the piezoelectric yarn 33 is a right turning yarn (Z yarn) in which the piezoelectric film 10 is covered by turning right with respect to the piezoelectric covering yarn 1A. The drawing direction 900 is inclined 45 degrees to the right with respect to the axial direction of the piezoelectric yarn 33. The drawing direction 900 is different from the drawing direction 900A of the piezoelectric covering yarn 1A.

  Further, as shown in FIG. 11B, the piezoelectric yarn 34 is a left turning yarn (S yarn) in which the piezoelectric film 10 is covered by turning left with respect to the piezoelectric covering yarn 2A. The drawing direction 900 is inclined 45 degrees to the left with respect to the axial direction of the piezoelectric yarn 34. The drawing direction 900 is different from the drawing direction 900A of the piezoelectric covering yarn 2A.

  FIG. 12 is an exaggerated view of the gap between the piezoelectric films 10 in the piezoelectric yarn 33. The piezoelectric yarn 33 has a certain gap D when the piezoelectric film 10 is wound around the covering yarn. When the piezoelectric yarn 33 is pulled in the axial direction due to the gap D, an electric field is generated between the surface of the piezoelectric covering yarn 1A and the surface of the piezoelectric film 10 to form a circuit. Therefore, this configuration further enhances the antibacterial and antifungal effects of the yarn itself. The same applies to the piezoelectric yarn 34.

  In addition, in the piezoelectric yarn 33, when PDLA is used for either the piezoelectric covering yarn 1A or the piezoelectric film 10, the charge generated on the surface of the piezoelectric covering yarn 1A and the charge generated on the back surface of the piezoelectric film 10 are different. The configuration is the same as that of the piezoelectric yarn 31, and a strong electric field is generated between the surface of the piezoelectric covering yarn 1 </ b> A and the back surface of the piezoelectric film 10. The same applies to the piezoelectric yarn 34 in which PDLA is used for either the piezoelectric covering yarn 2A or the piezoelectric film 10.

  Further, the yarn according to the present invention may have the following configuration. FIG. 13 is a partially exploded view showing the configuration of the piezoelectric yarn 35.

  The piezoelectric yarn 35 is a yarn (S yarn) in which the piezoelectric yarn 1 and the piezoelectric yarn 2 are twisted by turning counterclockwise. Since the piezoelectric yarn 1 that generates a negative charge on the surface and the piezoelectric yarn 2 that generates a positive charge on the surface intersect each other, the piezoelectric yarn 35 can generate an electric field by itself. As described above, the potential generated on the surface of the piezoelectric yarn 1 and the surface of the piezoelectric yarn 2 tends to be the same potential at the portion where the surface of the piezoelectric yarn 1 and the surface of the piezoelectric yarn 2 are close to each other. Correspondingly, the potential inside the yarn changes and tries to maintain the potential difference between the surface and the inside of the yarn. In each yarn, an electric field formed between the inside and the surface of the yarn leaks into the air and is coupled, and a strong electric field is formed in a portion where the piezoelectric yarn 1 and the piezoelectric yarn 2 are close to each other. The structure of the twisted yarn is complicated, and the portion where the piezoelectric yarn 1 and the piezoelectric yarn 2 are close to each other is not uniform. Further, when tension is applied to the piezoelectric yarn 1 and the piezoelectric yarn 2, the portion where the piezoelectric yarn 1 and the piezoelectric yarn 2 are adjacent also changes. Thereby, there is a change in the intensity of the electric field in each part, and an electric field circuit whose symmetry is broken is generated. In addition, the piezoelectric yarn 1 that produces a negative charge on the surface and the piezoelectric yarn 2 that produces a positive charge on the surface of the yarn in which the piezoelectric yarn 1 and the piezoelectric yarn 2 are twisted by turning rightward (Z yarn) intersect. Therefore, an electric field can be generated with a single thread. The number of twists of the piezoelectric yarn 1, the number of twists of the piezoelectric yarn 2, or the number of twists of the piezoelectric yarn obtained by twisting these yarns 35 is determined in view of the antibacterial effect. All of the application examples shown so far can be configured using the piezoelectric yarn 35. In addition, the piezoelectric yarn 1 that produces a negative charge on the surface and the piezoelectric yarn 2 that produces a positive charge on the surface of the yarn in which the piezoelectric yarn 1 and the piezoelectric yarn 2 are twisted by turning rightward (Z yarn) intersect. Therefore, an electric field can be generated with a single thread.

  In addition, even with triple covering yarn in which ordinary yarn is twisted on the side of S yarn (or Z yarn) and Z yarn (or S yarn) is further twisted on the side, Can be generated.

  Further, the yarn in the present invention is a yarn made of braid (third third) that simultaneously comprises a piezoelectric yarn 1 that turns right on the surface of a normal yarn and a piezoelectric yarn 2 that turns left like a piezoelectric yarn 36 shown in FIG. Thread). FIG. 14 is a diagram showing the configuration of the piezoelectric yarn 36. Even in such a configuration, as shown in FIG. 14, since an electric field is generated at a position where the piezoelectric yarn 1 and the piezoelectric yarn 2 intersect, an electric field can be generated by a single yarn.

  In addition to the S yarn using PLLA, a Z yarn using PDLA is also conceivable as a yarn that generates a negative charge on the surface. In addition to the Z yarn using PLLA, S yarn using PDLA is also conceivable as a yarn that generates a positive charge on the surface. Therefore, for example, in the configuration shown in FIG. 14, the S yarn using PLLA and the Z yarn using PDLA are twisted by turning left each other (S yarn) or twisted by turning right (Z yarn) Piezoelectric yarns made of yarn) can also generate an electric field with the yarn alone.

  Next, the antibacterial effect of the yarn made of the piezoelectric body will be described. The inventor of the present invention conducted the quantitative tests shown in the following (1) and (2) in order to evaluate the fungus-suppressing effect of the cloth woven with the piezoelectric yarn.

(1) Antibacterial evaluation of cloth woven with piezoelectric yarn a) Test method: Bacterial fluid absorption method (JIS L1902)
b) Test bacteria: Staphylococcus aureus NBRC12732
c) Inoculum concentration: 1.4 × 10 ⁵ (CFU / mL)
d) Standard fabric: Fabric woven with cotton yarn and fabric knitted with cotton yarn e) Test sample (antibacterial processed sample): S yarn (piezoelectric yarn 1) and Z yarn (piezoelectric yarn 2) are turned left and twisted A fabric knitted with the S yarn (piezoelectric yarn 35).

[a formula]
・ Proliferation value: G = Mb-Ma
Antibacterial activity value: A = (Mb-Ma)-(Mc-Mo)
A normal antibacterial processed product has an antibacterial activity value A ≧ 2.0 to 2.2.

Ma: arithmetic mean common logarithm of the number of viable bacteria (or ATP amount) of 3 specimens of standard cloth immediately after inoculation of test bacteria. ) Arithmetic average common logarithm ・ Mo: arithmetic average common logarithm of the number of viable bacteria (or ATP amount) of three specimens of the test sample (antibacterial processed sample) immediately after inoculation of the test bacteria ・ Mc: test sample after 18 to 24 hours of culture Arithmetic mean common logarithm of the number of viable bacteria (or ATP amount) of 3 samples of (antibacterial processed sample)

  As is clear from Table 1, the test sample (a cloth woven with a piezoelectric yarn) has a higher antibacterial action against bacteria than a standard cloth. It can also be seen that the antibacterial action is higher when the test sample is vibrated than when the test sample is left stationary. In particular, when an electric field is generated by vibrating the test sample, almost no positive bacteria are observed 18 hours after inoculation of the test bacteria (bacteria), and a high antibacterial action is exhibited.

(2) Antifungal evaluation of cloth woven with piezoelectric yarn a) Test method: Quantitative test method for antifungal property (method established by the Council for Textile Evaluation Technology)
b) Test bacteria: Aspergillus niger NBRC105649
c) Inoculum concentration: 1.1 × 10 ⁵ (CFU / mL)
d) Standard fabric: Fabric woven with cotton yarn and fabric knitted with cotton yarn e) Test sample (antibacterial processed sample): S yarn (piezoelectric yarn 1) and Z yarn (piezoelectric yarn 2) are turned left and twisted A fabric knitted with the S yarn (piezoelectric yarn 35).

[a formula]
・ Growth value: F = Fb-Fa
Antifungal activity value: FS = (Fb−Fa) − (Fc−Fo)
-Fa: arithmetic mean common logarithm of the number of viable bacteria (or ATP amount) of 3 specimens of standard cloth immediately after inoculation of test bacteria-Fb: the number of viable bacteria (or ATP quantity) of 3 specimens of standard cloth after 42 hours of culture Arithmetic average common logarithm / Fo: Arithmetic average common logarithm of the viable count (or ATP amount) of three specimens of the test sample (antibacterial processed sample) immediately after inoculation of the test bacteria. Fc: Test sample (antibacterial processed sample) after 42 hours of culture ) Arithmetic mean common logarithm of viable count (or ATP amount) of 3 specimens

  As is clear from Table 2, the test sample (a cloth woven with a piezoelectric yarn) has a higher antibacterial action against fungi (mold, etc.) than the standard cloth. It can also be seen that the antifungal action is higher when the test sample is vibrated than when the test sample is left stationary. That is, when the test sample is vibrated to generate an electric field, a high antifungal action is exhibited.

  From the above results, it became clear that the cloth 100 in which the yarn made of the piezoelectric material is woven has antibacterial and antifungal properties.

  Finally, the description of the above embodiment is illustrative in all respects and not restrictive. Those skilled in the art can make modifications and changes as appropriate. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention includes modifications from the embodiments within the scope equivalent to the claims.

D ... Gap 1, 2 ... Piezoelectric yarns 1A, 2A ... Piezoelectric covering yarn 3 ... Normal yarn 10 ... Piezoelectric film 11 ... Core yarns 31, 32, 33, 33A, 34, 35, 36 ... Piezoelectric yarns 100, 100A ... Cloth 101 , 102, 103 ... clothing 201 ... dog (animal)
202 ... Cat (animal)
900, 900A ... Stretching direction 910A ... First diagonal 910B ... Second diagonal

Claims (21)

Arrange the cloth containing the piezoelectric material to face at least a part of the animal's skin,
A method for inhibiting bacteria on the surface of an animal body, which suppresses the growth of bacteria on the body surface of the animal facing the cloth by an electric charge generated when an external force is applied to the piezoelectric body.   The method according to claim 1, wherein the cloth is woven with a plurality of threads made of the piezoelectric body. The plurality of threads includes a first thread made of a first piezoelectric body and a second thread made of a second piezoelectric body,
The cloth is a cloth formed by weaving the first thread and the second thread,
The first yarn generates a positive charge when an external force is applied;
The second thread generates a negative charge when an external force is applied;
The method for inhibiting bacteria on the surface of an animal body according to claim 2. The first yarn and the second yarn are arranged in parallel.
The method for inhibiting bacteria on the surface of an animal body according to claim 3. The first yarn and the second yarn are arranged so as to cross each other,
The method for inhibiting bacteria on the surface of an animal body according to claim 3 or 4. The plurality of yarns include a third yarn in which the first yarn and the second yarn are assembled as a braid.
The method for inhibiting bacteria on the surface of an animal body according to any one of claims 3 to 5.   The method for inhibiting bacteria on the body surface of an animal according to any one of claims 1 to 6, wherein clothing having the cloth is attached to the animal.   The method according to claim 1, wherein the piezoelectric body is a piezoelectric polymer. The piezoelectric body is a piezoelectric polymer,
The method according to claim 1, wherein the yarn is formed by twisting the piezoelectric polymer.   The method according to claim 8 or 9, wherein the piezoelectric polymer includes polylactic acid.   A method for treating ringworm fungus in animals other than humans, using the method for inhibiting bacteria on the surface of an animal body according to any one of claims 1 to 10. With a cloth containing a piezoelectric body,
An animal garment that suppresses the growth of bacteria by an electric charge generated when an external force is applied to the piezoelectric body.   The animal garment according to claim 12, wherein the cloth is arranged to face the animal skin when worn.   The animal cloth according to claim 12 or 13, wherein the cloth is woven with a plurality of threads made of the piezoelectric material. The plurality of threads includes a first thread made of a first piezoelectric body and a second thread made of a second piezoelectric body,
The cloth is a cloth formed by weaving the first thread and the second thread,
The first yarn generates a positive charge when an external force is applied;
The second thread generates a negative charge when an external force is applied;
The animal clothing according to claim 14. The first yarn and the second yarn are arranged in parallel.
The animal clothing according to claim 15. The first yarn and the second yarn are arranged so as to cross each other,
Animal clothing according to claim 15 or 16. The plurality of yarns include a third yarn in which the first yarn and the second yarn are assembled as a braid.
The animal clothing according to any one of claims 15 to 17.   The animal clothing according to claim 12 or 13, wherein the piezoelectric body is a piezoelectric polymer. The piezoelectric body is a piezoelectric polymer,
The animal clothing according to any one of claims 14 to 18, wherein the yarn is formed by twisting the piezoelectric polymer.   The animal clothing according to claim 19 or 20, wherein the piezoelectric polymer includes polylactic acid.

Images