KR20220094245A - A electrically conductive fabric and manufacturing method thereof - Google Patents

Abstract

A conductive fabric according to the present invention has the advantage of allowing an irregular heating portion or a non-heating portion both of which cannot be achieved in conventional conductive fabrics to be formed in a desired part by partially removing conductive fibers through fil coupé processing. In addition, the present invention is configured such that processed parts and non-processed parts can be formed in a variable form without having a definite shape (e.g., square or rectangular) like general fabrics, and the processed parts may be a heating portion depending on materials of the supplied wefts or warps.

Description

A conductive fabric and a manufacturing method thereof

) 가공을 통해 발열체의 표면 중 원하는 일부에 도전성 섬유 또는 비도전성 섬유를 제거하여 도전부 및 비도전부를 형성함으로써 원하는 부분에만 발열성이 나타나도록 하는 것을 특징으로 하는 도전성 직물 및 이의 제조방법에 관한 것이다.The present invention relates to a conductive fabric and a method for manufacturing the same, and more particularly, to include a conductive fiber in any one or both of a weft and a warp, and to have exothermic properties by flowing a current through the conductive fiber,

) It relates to a conductive fabric and a method for manufacturing the same, characterized in that by removing conductive fibers or non-conductive fibers from a desired part of the surface of the heating element through processing, and forming a conductive part and a non-conductive part, heat generation is exhibited only in the desired part. .

In general, the iron wire applied to the heating element is made of a good conductive material in the form of a thread and using it, a mesh-shaped heating element is made, or a conductive material is screen-printed on the film and used as a heating element.

However, the heating element made of the above conductive material in the form of a thread has low thermal efficiency and electrical resistance, so high heat is generated in the heating wire when used. There was a change problem, and the heating element used by printing a conductive material on the film is often laminated by bonding the electrode, so that the electrode at the bonding part is easily short-circuited over time, which is a safety hazard. There was a problem.

Therefore, looking at the conventional heating element technology in which carbon is coated on the surface of the fabric to maintain constant temperature resistance as a method to solve the above problems, the Republic of Korea Publication No. 10-2007-0079770 made of carbon, barium titanate, A method for manufacturing a mesh heating element in which a heating element is manufactured by impregnating a fabric in a mixture of polyvinyl acetate, ethylene vinyl acetate, binder, penetrant, water, and the like is known.

However, the heating element manufactured by impregnating the fabric into the mixture as described above requires the use of a large number of poles due to the mixture of binders and penetrants that reduce conductivity and bonding strength in the mixture. There is also a problem in that when the heating element is used for a long time, the conductive material, made of carbon and barium titanate, is short-circuited from the fabric due to low bonding strength, thereby reducing the conductivity.

In addition, since the pole wire, which is a conductive fiber, must enter the weft or warp yarns when weaving the fabric, only the heat generation degree of the heating element can be controlled according to the arrangement of the pole wires, and since the heated part also has a simple rectangular shape, some of the surface of the fabric design It is impossible to form a heating element that generates heat while forming a pattern such as a curve.

Republic of Korea Patent Publication No. 10-2007-0079770 (August 08, 2007)

) 가공을 통해 발열체의 표면 중 원하는 일부에 도전성 섬유나 비도전성 섬유를 제거하여 도전부 및 비도전부를 형성함으로써 패턴 형상으로 원하는 부분에만 발열성이 나타나도록 하는 것을 특징으로 하는 도전성 직물의 제공을 목적으로 한다.The present invention has been devised to solve the above problems, and specifically, it contains conductive fibers in any one or both of the weft and warp yarns, and has exothermic properties by flowing a current through the conductive fibers, fil coup

) process to remove conductive fibers or non-conductive fibers from a desired part of the surface of the heating element to form a conductive part and a non-conductive part to provide a conductive fabric, characterized in that heat generation appears only in a desired part in a pattern shape do it with

The present invention relates to a conductive fabric and a method for manufacturing the same.

) 가공을 진행하여 도전부 또는 비도전부를 선택적으로 형성하며, 상기 도전성 직물은 위사와 경사로 직조되어 형성되되, 상기 위사와 경사 중 어느 하나 또는 전부에 도전성 섬유를 포함하며, 상기 도전부와 비도전부의 계면은 곡선 또는 직선 형태를 갖되, 상기 도전부 및 비도전부가 불규칙하게 혼재되어 있으며, 상기 도전성 직물은 하기 식 1 내지 4를 만족하는 것을 특징으로 하는 도전성 직물에 관한 것이다.One aspect of the present invention is a conductive fabric including a conductive part, a non-conductive part, and an electrode part for supplying current to the conductive part, wherein the conductive fabric has a fil coup on the surface.

) processing to selectively form a conductive part or a non-conductive part, and the conductive fabric is formed by weaving with a weft and a warp, and includes a conductive fiber in any one or all of the weft and the warp, and the conductive part and the non-conductive part The interface of has a curved or straight shape, the conductive part and the non-conductive part are irregularly mixed, and the conductive fabric relates to a conductive fabric, characterized in that it satisfies the following formulas 1 to 4.

[Equation 1]

100nm < H1 < H2 < 1cm

[Equation 2]

0.1μm < S1 < 10 mm

[Equation 3]

200 pieces (pick/inch) < D1, D2 < 800 pieces (pick/inch)

[Equation 4]

D1 + 1 < D2 < D1 + 800

(In Equations 1 to 4, H1 is the thickness of the portion to which the feel coupe processing is applied, H2 is the thickness of the portion to which the feel coupe processing is not applied, S1 is the fineness of the fiber (filament bundle) to which the feel coupe processing is applied, and D1 is The number of strands of fibers with feel coupe treatment applied, D2 means the number of strands of fibers without feel coupe treatment)

In the present invention, in the conductive fabric, at least one or all of the plurality of fibers constituting the weft and warp may be made of conductive fibers, and more specifically, any one or all of the weft and warp may include non-conductive fibers in the conductive fibers. It may be formed by covering or covering a non-conductive fiber with a conductive fiber. In this case, the conductive fiber is made of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel, and stainless, and the non-conductive fiber is cotton, hemp, silk, wool, rayon, polyolefin, polyamide, poly It contains any one or a plurality of materials selected from acrylic, polyurethane, and polyimide, and is characterized in that the surface is coated with an insulating composition.

Another aspect of the present invention is

a1) preparing a non-conductive fiber including any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;

b1) manufacturing a conductive fiber by braiding and twisting a filament formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;

c1) manufacturing a fabric by weaving the non-conductive fiber and the conductive fiber, and weaving the conductive fiber to be included in any one or both of the weft and warp yarns; and

) 가공하여 무정형의 비도전부를 형성하는 단계;d1) Part of the surface of the woven fabric fil coup (fil coup)

) forming an amorphous non-conductive part by processing;

include, or

a2) preparing a non-conductive fiber including any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;

b2) manufacturing a conductive fiber by braiding and twisting filaments formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;

c2) braiding the non-conductive fiber and the conductive fiber;

d2) weaving the braided yarn, conductive fiber, and non-conductive fiber of step c2) to be included in any one or both of the weft yarn and the warp yarn; and

) 가공하여 무정형의 도전부 또는 비도전부를 형성하는 단계;e) fil coup (fil coup) part of the surface of the woven fabric

) forming an amorphous conductive part or non-conductive part by processing;

It relates to a method of manufacturing a conductive fabric comprising a.

The conductive fabric according to the present invention is formed in a desired portion of an atypical heating part (or conductive part) or non-heating part (or non-conductive part) that cannot be achieved in conventional conductive fabrics by removing some of the conductive fibers through peel coupe processing. Because it has the advantage of being able to do it, it is possible to form atypical conductive and non-conductive patterns that cannot be achieved by weaving alone.

In addition, even with simple processing, the processed part and the non-processed part do not have a regular shape (square or rectangular) like general fabrics, and can be formed in a free form. Because it can be easily selected and processed, the shape of the heating and non-heating parts on the front and back of the fabric can be taken differently.

1 is a real photograph of a conductive fabric manufactured according to the manufacturing method of the present invention.
2 is a schematic view showing a conductive fabric according to the present invention.
3 and 4 show the woven form of the conductive fabric according to the present invention.
5 shows a covering state of the weft or warp yarns constituting the conductive fabric according to the present invention.

Hereinafter, the conductive fabric according to the present invention and a manufacturing method thereof will be described in more detail with reference to Examples and Comparative Examples. However, the embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art.

Therefore, the present invention is not limited to the embodiments presented below and may be embodied in other forms, and the embodiments presented below are only described to clarify the spirit of the present invention, and the present invention is not limited thereto.

At this time, unless there are other definitions in the technical terms and scientific terms used, it has a meaning commonly understood by a person of ordinary skill in the art to which this invention belongs, and in the following description, it may unnecessarily obscure the subject matter of the present invention. A description of possible known functions and configurations will be omitted.

Also, the singular forms used in the specification and appended claims may also be intended to include the plural forms unless the context specifically dictates otherwise.

In addition, the drawings introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Therefore, the present invention is not limited to the drawings presented below and may be embodied in other forms, and the drawings presented below may be exaggerated to clarify the spirit of the present invention. Also, like reference numerals refer to like elements throughout.

Also, the singular forms used in the specification and appended claims may also be intended to include the plural forms unless the context specifically dictates otherwise.

In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is formed between each component. It should be understood that elements may also be “connected,” “coupled,” or “connected.”

In the present invention, the term 'filament' refers to a long fiber that is continuous and thin and emitted through a nozzle of a spinning machine, and generally refers to a long fiber, but in the present invention, unless otherwise specified, 'monofilament', that is, It refers to one of the filament bundles constituting a general fiber.

In the present invention, the term 'fiber' refers to a long and thin linear material composed of a polymer material by gathering fine molecules, and is generally used in various meanings such as short fibers (staples) or long fibers (filaments), but in the present invention, a special substrate Unless there is, it means that a plurality of the filaments are gathered and braided.

) 공법을 이용하여 제거함으로써 도전부와 비도전부를 임의의 형태로 나눌 수 있으며, 필요한 부분에만 발열특성을 발현할 수 있다는 점을 확인하여 본 발명을 완성하였다.According to the characteristics of the present invention, the present invention provides a conductive fiber comprising any one or a plurality of materials selected from carbon, iron, copper, nickel and stainless, cotton, hemp, silk, rayon, polyolefin, polyamide, and polyacrylic. , polyurethane and polyimide, after weaving or braiding any one or a plurality of non-conductive fibers to prepare a fabric, an arbitrary pattern or amorphous area is set on the woven fabric surface, and conductive fibers or non-conductive fibers in the pattern are set on the surface of the woven fabric Fiber to fil coup

), the present invention was completed by confirming that the conductive part and the non-conductive part can be divided into arbitrary shapes by removing them using a method, and that heat generation characteristics can be expressed only in the necessary parts.

When the conductive fabric according to the present invention is described in more detail through the manufacturing method,

a1) preparing a non-conductive fiber by coating an insulating composition on any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;

b1) manufacturing a conductive fiber by braiding and twisting a filament formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;

c1) manufacturing a fabric by weaving the non-conductive fiber and the conductive fiber, and weaving the conductive fiber to be included in any one or both of the weft and warp yarns; and

) 가공하여 무정형의 비도전부를 형성하는 단계;d1) Part of the surface of the woven fabric fil coup (fil coup)

) forming an amorphous non-conductive part by processing;

comprising the steps of, or

a2) preparing a non-conductive fiber by coating an insulating composition on any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;

b2) manufacturing a conductive fiber by braiding and twisting filaments formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;

c2) braiding the non-conductive fiber and the conductive fiber;

d2) weaving the braided yarn, conductive fiber, and non-conductive fiber of step c2) to be included in any one or both of the weft yarn and the warp yarn; and

) 가공하여 무정형의 도전부 또는 비도전부를 형성하는 단계;e) fil coup (fil coup) part of the surface of the woven fabric

) forming an amorphous conductive part or non-conductive part by processing;

It can be prepared including the steps of

In the present invention, step a1) or a2) is a step of preparing a non-conductive fiber by coating an insulating composition on a natural fiber or synthetic fiber.

In the present invention, the non-conductive fiber is a base fiber constituting the weft or warp of the fabric constituting the conductive fabric, and may include one or more non-conductive natural or synthetic fibers.

As fibers constituting the non-conductive fibers, preferably, vegetable fibers such as cotton and hemp; animal fibers such as silk and wool; semi-synthetic fibers such as rayon; synthetic fibers such as polyolefin, polyamide, polyacrylic, polyurethane, and polyimide; and these may be included alone or two or more thereof may be included.

More preferably, the non-conductive fiber may include silk (silk) fiber. The silk fiber is not only excellent in flexibility and heat resistance, but also can increase the adhesive properties of the insulating composition by fibroin used as a substantial fiber and sericin formed on the surface of the fibroin, and maintain the shape of the fiber even in the friction of the fabric it is preferable to have

As described above, a typical silk fiber contains 20 to 30% by weight of sericin immediately after being collected from a cocoon. The sericin is a gelatinous protein, and since it exhibits adhesiveness in a heated wet state, an insulating composition to be described later can be easily attached thereto, and a soft touch can be provided by increasing the flexibility of the heating element itself.

However, the sericin may interfere with the braiding and ply-twisting process of the fibers, and if an excessive amount of sericin is left, the feel is stiff and the gloss is poor, so it is preferable to dissolve and remove some through scouring.

The method for manufacturing the silk fiber is not limited in the present invention, and for example, a general manufacturing method is first to cut a cocoon, then immerse it in an alkali solution and heat it to remove sericin. And after washing and drying it, it can be manufactured in the form of fibers through a spinning process such as other cotton and somen noodles. In addition, as described above, when a part of sericin is left, it is preferable to remove it using an enzyme or the like because it can be completely removed when heated.

In the present invention, the non-conductive fiber does not limit the number of twists and fineness, but the number of twists of the fiber is preferably 100 to 1,000 T/M, and the fineness is preferably 10 to 200 de (denier).

In the present invention, the non-conductive fiber is preferably coated with an insulating composition before weaving the non-conductive fiber to further increase insulation.

The insulating composition serves to enhance the insulation of the non-conductive fiber and at the same time improve the heat resistance, chemical stability, abrasion resistance, etc. of the non-conductive fiber, and may contain silane, a cross-linking agent, a filler, a solvent, etc. .

The silicone has an alkyl group in the form of a branch or is a polymer in which oxygen or the like is connected by a siloxane bond, and serves to increase heat resistance and abrasion resistance.

The filler is added to suppress deterioration of non-conductive fibers, particularly silk fibers, or to improve thermal conductivity, and may include metal oxides such as titanium dioxide or carbon black. In particular, the titanium dioxide serves to reflect visible light or infrared light, and the carbon black can stably and easily form covalent bonds with hydrogen, oxygen, or nitrogen, and can form single bonds, double bonds, and triple bonds. It is also formed in a cyclic structure to improve the thermal conductivity of the heating element.

The filler does not limit the average particle diameter. For example, the filler may have an average particle diameter of 10 to 1,000 μm, and when it is out of the above range, the dispersibility of the filler may decrease so that the properties may be partially expressed or adhesion may decrease.

In addition, the filler is preferably added in an amount of 10 to 100 parts by weight based on 100 parts by weight of the silicone. When the content of the filler is added less than 10 parts by weight, the above-described effect of suppressing deterioration or improving thermal conductivity is insignificant, and when added in excess of 100 parts by weight, it is difficult to control the heating properties of the conductive fabric due to the improvement of the conductivity of the non-conductive fiber.

The silane is added to improve the mechanical properties of the insulating composition, and examples thereof include vinyltrimethoxysilane, vinyltriethoxysilane, vinyltrichlorosilane, and vinyltri(2-methoxyethoxy). Silane, 3-Aminopropylethoxysilane, Mercaptopropyltrimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-glycidyloxypropyltrimethoxysilane, 3-Gly Cydyloxypropylmethyldiethoxysilane, bis-(3-(triethoxysilyl)-propyl)tetrasulfide, etc. are mentioned.

The silane is preferably added in an amount of 1 to 10 parts by weight based on 100 parts by weight of the silicon. When the amount of the silane added is less than the above range, the abrasion resistance of the insulating composition may decrease.

The crosslinking agent may include phenolic resin, zinc oxide, yttrium oxide, aluminum oxide, and the like, and may improve mechanical properties of the composition. The crosslinking agent may be added in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the silicone, and when it is out of the above range, mechanical properties of the mixture may be reduced or the flexibility of the heating element may be reduced.

The solvent is for dissolving or dispersing the above-mentioned substances, and it is preferable to use alcohols such as methanol and ethanol, or general solvents such as toluene, xylene, and methyl ethyl ketone. Although the amount of the solvent is not limited, it is preferable to include 100 to 500 parts by weight based on 100 parts by weight of silicone.

Step a1) or a2) may be prepared by immersing the above-described non-conductive fiber in the insulating composition, degassing the composition while compressing the non-conductive fiber with a compression roller, and drying the non-conductive fiber. In this case, conditions such as compression, degassing, and drying are not limited, and a person skilled in the art may apply general conditions for forming an insulating coating layer on the fiber surface.

In the present invention, step b1) or b2) is a step of manufacturing a conductive fiber, and the conductive fiber may be manufactured by plying and braiding a plurality of metal yarns and carbon fibers in the form of filaments.

The filament constituting the conductive fiber may include, for example, carbon, iron, copper, nickel, and stainless steel, and may include nickel, chromium, and alloys thereof having good thermal conductivity in addition to these, but is not limited thereto. However, in order to prevent disconnection of the conductive fiber, it is preferable to use a metal yarn, particularly a wire, having a tensile strength greater than or equal to a certain level.

The conductive fiber is not limited to a manufacturing method. Examples of the manufacturing method include a drawing method in which a metal rod is inserted into a diamond die and tensioned, an injection method in which a molten metal is injected from a spinneret, a powdered metal is put around a glass tube and melted at the same time, then heated fiber Examples include a glass combination method in which the metal is wound after being stretched in a state of tension, and an emulsion spinning method in which a powdered metal is dispersed in a polymer solution, spun, and then the polymer is carbonized.

The conductive fiber may be provided in the form of a single filament having a certain thickness, but it is preferable to braid dozens of thin filaments to increase the flexibility of the heating element. At this time, in the present invention, the number of filaments to be braided is not limited, and an appropriate number of filaments can be adjusted according to voltage, calorific value, thickness, density, etc. of the fabric, and the number of twists is also not particularly limited.

In the present invention, the conductive fiber does not limit the fineness, but in terms of maintaining flexibility and conductivity, the fineness is preferably 10 to 200 μm, and the fineness at this time refers to the fineness of one filament.

In addition, since the conductive fiber needs to suppress the propagation of bacteria due to the characteristics of the conductive fabric that is difficult to wash, it is preferable to prepare it in the form of a double-structured metal yarn in which an antibacterial metal such as silver is coated on the surface of the metal yarn. At this time, it is preferable to put the antibacterial metal into the bath in the form of a powder or a solution, then impregnate the metal thread into the bath and apply heat to coat it.

Next, the fabric may be manufactured by weaving the conductive fiber and the non-conductive fiber prepared as in step c1), or the non-conductive fiber and the conductive fiber may be braided as in step c2).

) 가공으로 인한 위사 또는 경사의 손실을 고려하여 이중직 이상의 다중직으로 형성하는 것이 바람직하다.The fabric is manufactured in a plane shape by crossing weft and warp, which is a general weaving method, and supplies conductive fibers to weft, warp or weft and warp, and non-conductive fibers are also supplied to weft, warp or weft and warp. can do. At this time, the fabric is a fil coup to be described later.

) Considering the loss of weft or warp due to processing, it is desirable to form a multi-weave weave of double weave or more.

If described in more detail based on the drawings, the conductive fabric 1 according to the present invention as shown in FIG. 2 is electrically connected to the power supply 400 and the power supply, and is located at both ends in the width direction of the conductive fabric in the longitudinal direction. The electrode part 500 for supplying current to the conductive fiber and the conductive fiber or the non-conductive fiber may form a weft yarn 100 or a warp yarn 200 to form a fabric.

The fabric has a structure in which the weft yarns 200 are alternately supplied to the upper and lower portions of the reference warp, respectively, around the reference warp 210 as shown in FIGS. 3 to 4 . Each of these weft yarns may be woven with the two upper warp yarns 220 and 230 or the two lower warp yarns 240 and 250 to form a fabric having a double structure.

That is, as for the wefts, 4 wefts and 5 warps form one unit based on the double weave, and the wefts are in the order of the lower part of the reference warp, the upper part of the standard warp, the lower part of the standard warp, and the upper part of the standard warp. are supplied alternately.

Each of the weft yarns supplied in this way can be woven by being arranged in a space made by knotting the upper and lower warp yarns supplied to the upper and lower sides of the reference warp by crossing them up and down. At this time, the warp has a structure in which the upper fabric and the lower fabric of the reference warp alternately pass through the upper fabric and the lower fabric so that the upper fabric and the lower fabric are not separated from each other.

Specifically, as shown in FIG. 3 , taking one repeating unit L as an example, among the upper slopes located above the reference slope, the first upper slope 220 is located only at the upper portion of the reference slope 210 and the second upper slope 230 . ) or by intersecting the reference warp to form a space, and the No. 2 weft and No. 4 weft yarns are sequentially supplied to the space.

In addition, the second upper warp 230 intersects the first upper warp to form a first space, and the No. 2 weft yarn is located here. The second upper warp woven with the second weft yarn passes through the reference warp again and intersects the second lower warp 250 among the lower warps to form a space, and the third weft yarn is supplied thereto.

Conversely, in the case of the lower fabric, the first weft yarn is positioned in the space formed by the intersection of the first lower warp 240 and the second lower warp 250, and the first lower warp passes through the next weft without weaving, instead of the above-mentioned As described above, No. 3 weft yarn is supplied to the space formed by the intersection of the second lower warp 250 and the second upper warp 230, and as this structure is continuously repeated, the double fabric in which the upper and lower ends are physically entangled with each other is formed. will be formed

In addition, in order to facilitate the removal of conductive fibers or other fabrics in the peel coupe process, which will be described later, as shown in FIG. 4 , at least one of the weft yarns (the 4th weft in the drawing) forms a plurality of portions that do not intersect with the other warp yarns. It is also possible to minimize the number of times the weft yarn intersects with another warp yarn.

In the above structure, the conductive fiber may be included in weft, warp, or both weft and warp, and among them, it is preferable to include in the weft yarn because it is advantageous to process the feel coupe.

For example, in the fabric of FIG. 3 , when the conductive fiber is put into only the 4th weft, the 1st and 3rd wefts naturally form a lower weave, and the 2nd and 4th wefts form the upper weave. At this time, if No. 4 weft is cut by peel coupe processing, since the conductive fiber is cut in the repeating unit, heat is not generated even when an electric current is supplied. In addition, if the weft yarn including the conductive fiber is not cut during the peel coupe processing process, the weft yarn generates heat when energized, so that the heating portion and the non-heating portion can be adjusted according to the cutting position of the weft yarn.

Here in FIG. 4 , when the conductive fiber is added to only the 4th weft, the 4th weft is cut through a peel coupe process compared to the fabric of FIG. 3 because the number of times of entanglement with the warp is minimized unlike other weft yarns. can be minimized, so that the mechanical properties of the fabric can be further improved.

In addition, the weft or warp or both the weft and the warp have a structure in which a filament-type conductive fiber and a non-conductive fiber are braided, thereby controlling the heating temperature and at the same time increasing the removal efficiency of the conductive fiber or the non-conductive fiber through the feel coupe process. can

Specifically, as shown in FIG. 5, the planar heating element according to the present invention may be formed by covering the conductive fiber with the non-conductive fiber, or by covering the non-conductive fiber with the conductive fiber. That is, by taking different materials of the core and covering yarns, the corresponding weft yarns can be made to have conductivity or not by simply removing the covering yarns in the feel coupe process.

For example, in the warp or weft yarn constituting the conductive fabric, if the covering yarn (B) is a conductive fiber and the core (A) is a non-conductive fiber, if the covering yarn is removed during the peel coupe processing process, the warp or weft yarn becomes conductive fiber. It cannot be energized because it has been cut. Therefore, no heat is generated in the part where the fiber is woven.

In addition, when only a part of the covering yarn is removed without completely removing the covering yarn in the structure as described above, the covering yarn, which is the main body of heat, remains in the portion compared to other portions, but the amount of current passing through is the same, so the heat generation temperature is maintained higher than that of other portions. Therefore, even within the same weft or warp yarns, the heating temperature can be different through processing.

Conversely, in FIG. 5 , when the covering yarn (B) is a non-conductive fiber and the core (A) is a conductive fiber, if the covering yarn is removed during the peel coupe processing process, the non-conductive fiber covering the conductive fiber is removed from the corresponding warp or weft yarn. Because the heat generation temperature of the surface of the removed part rises immediately compared to the heating temperature of the part that is not removed. Therefore, when the temperature of a specific part of the conductive fabric needs to be higher than that of other parts, it can be achieved by removing the covering yarn as described above.

As described above, in the conductive fabric according to the present invention, a heating part and a non-heating part can be formed in the part desired by the processor by removing some of the conductive fibers through the peel coupe process. Here, by removing only the covering yarn after taking different materials of the core yarn and the covering yarn as described above, only a part of the corresponding weft or warp yarns can be removed. In this case, since the screening remains as it is, the tensile strength or breaking strength of the fabric may increase compared to the case where the weft or warp is completely removed, and at the same time, it has the advantage of controlling the presence or absence of heat or characteristics according to the material of the core and covering yarn. have.

In addition, since the feel coupe processing is performed by scratching or pulling the surface of the fabric due to the nature of the feel coupe processing, the position of the feel coupe processing can be made freely. Therefore, as shown in Fig. 2, the processed part 10 and the non-processed part 20 do not have a regular shape (square or rectangle) like a general fabric and can be formed in a free form, and depending on the supplied weft or warp material Accordingly, the processed part may be a heating part or a non-heating part.

In the present invention, the plying process may be manufactured through a conventional ply-twisted yarn or a covering manufacturing method. At this time, it is preferable that the fiber manufactured through the covering manufacturing method is 10 to 100 TPI (Twist per inch) in braided yarn. In addition, it is preferable that the length ratio of the covering yarn to the core is such that the screening: covering yarn = 1: 1 to 5, and more preferably 1: 2 to 3, so that the covering yarn can be braided so as to completely cover the core. it is preferable to have

In addition, if the covering yarn is manufactured according to the above ratio, separation between the covering yarn and the core may occur in the course of use. As it rises, it can express luxurious luster, texture, warmth, elasticity, etc. while being a conductive fabric.

After braiding the non-conductive fiber and the conductive fiber as described above (step c2)), the fiber can be woven into a woven fabric by supplying the corresponding fiber to the weft, warp or weft and warp (step d2). At this time, the weaving method is not limited in the present invention, and similarly to step c1), it is preferable to have a fabric form formed by entangled weft and warp yarns, more preferably a double weave form.

) 가공하여 무정형의 도전부 또는 비도전부를 형성할 수 있다.Next, as in step d1) or step e), part of the surface of the woven fabric is applied to a fil coup

) to form an amorphous conductive part or a non-conductive part.

)’는 영어로 절단된 섬유를 의미하며, 직물 표면의 위사나 경사를 절단하는 추가 단계를 포함하여 진행함으로써 추가적인 무늬를 발현하거나 직물의 무게를 좀 더 가볍게 만드는 효과를 통칭하는 것이다.In the present invention, the 'fil coupe (fil coup

)' means the cut fiber in English, and it collectively refers to the effect of expressing additional patterns or making the weight of the fabric lighter by including an additional step of cutting the weft or warp of the fabric surface.

In the present invention, by partially or completely cutting any one of weft or warp or a plurality of fibers constituting the fabric through the peel coupe processing as described above, the processed surface may form a kind of pattern. This pattern is completely different from the pattern formed according to the texture of the fabric, and it is possible to form a pattern that cannot be expressed through the weaving process like printing. In addition, by selectively removing the conductive fiber or the non-conductive fiber through the fill coupe process, the conductive part or the non-conductive part can be formed in an amorphous form.

In the present invention, a general raising machine may be used for the peel coupe processing, and the shape of the conductive part or the non-conductive part can be freely adjusted by adjusting the arrangement position or arrangement density of the chimneys attached to the raising machine, which will be described later, if necessary.

Specifically, the raising machine refers to a device that causes hair by scraping fibers on the surface of a fabric, which causes a raising action by a difference in surface speed between the fabric, the chimney, and the cylinder drum. At this time, the chimney is a tool for raising the chimney, which means that needles with a certain length and angle are planted on a thick fabric (chimney), and the chimney is used by winding it around a roller (pile roller, counter pile roller).

The raising machine, for example, can be largely divided into a hydraulic raising machine and a belt-type raising machine, and in detail, it is divided into English (UK) raising, German (Germany) raising, and French (France) raising. The hydraulic raising machine is a method in which the force generated from the hydraulic motor is transmitted to the gear of the chimney roller through the internal gear, so the initially generated force is accurately transmitted to the chimney without any loss, and the belt-type raising machine is the main Since the force generated by the motor is transmitted to the chimney through the endless belt, the degree of slippage of the endless belt varies depending on the belt condition, the type and structure of the fabric, the tension inside the cylinder drum, and the abrasion of the chimney. It is a method in which some loss of power may occur during transmission to the chimney. Also, recently, a method in which a hydraulic raising machine and a belt raising machine are mixed is also used.

Each driving unit installed in the raising machine according to the weaving degree of the conductive fiber, the number of filaments of the conductive fiber or the non-conductive fiber, the fineness of the fiber, the thickness difference between the conductive part and the non-conductive part, and the pattern shape of the conductive part or the non-conductive part It is recommended to proceed after manually setting detailed operating conditions such as the operation speed, rotation direction, and fabric travel speed.

Specifically, the raising machine stores the data of the fabric described above, compares/analyses the stored data to determine the calculated value of the peel coupe degree by the number of rotations of the motor, gear ratio, and the diameter of the roller, and then raises the fabric The pattern can be formed according to the feel coupe processing by passing it through the filter and scraping the fabric and fabric. In this case, in step d1) or e), it is preferable to pass the fabric through a raising machine several times as necessary to maximize the effect of cutting the fibers.

After the peel coupe processing is performed through the raising machine as described above, a process of stabilizing the cut fibers through post processing may be additionally performed. In this case, the post-processing may include a process of removing the brushed portion of the fiber by applying heat to the end of the cut fiber or by additionally cutting it.

This is because some of the fibers on the surface of the fabric are cut, and in some cases, the cut fibers may be separated from the fabric by an external force. In addition, since most conductive fibers are metal threads, the cut cross-section is often sharp, so it is preferable to remove the brushed fibers so as not to injure the user.

In the present invention, the post-processing method is not limited. For example, by burning the non-conductive fibers that have been raised through heating, separation of the fibers can be prevented, and the raised portions of the fibers can be removed through a cutter.

The present invention may include a conductive fabric manufactured through the manufacturing method as described above. At this time, the conductive fabric forms a heating part (conductive part) and a non-heating part (non-conductive part) through the above-described feel coupe processing, but the heating part and the non-heating part may have regular shapes or irregular shapes depending on the feel coupe processing form. It may have an (atypical) shape.

More specifically, the conductive fabric includes a conductive fabric made of weft and warp weaving as shown in FIG. 2, a control device 300, a power supply 400, and an electrode part that supplies current to the conductive fiber while maintaining the shape of the fabric ( 500) may be included.

At this time, the weft and warp yarns may include any one of conductive fibers and non-conductive fibers, or both conductive fibers and non-conductive fibers, as described above, and conductive fibers or non-conductive fibers are removed by the above-described fill coupe processing. Form wealth and non-conductive parts. The interface (interface) between the conductive fiber and the non-conductive fiber formed as described above may have a curved or straight shape depending on the feel coupe processing conditions, and the conductive part and the non-conductive part may be irregularly mixed as shown in FIGS. 1 and 2 . .

To describe this in detail, design data designed through a fabric design tool and a jacquard loom receiving the design data and weaving are required in order to represent patterns in general fabrics. At this time, the weaving design data is divided into pixels of horizontal cells and vertical cells, and a pattern can be expressed by displaying a stitch place including a weft-raise or warp-raise in this pixel. .

These intersections have the shape of small rectangles like pixels on a display. Therefore, the larger the size of the intersection, that is, the coarser the fineness of the weft or warp, the easier the shape of the intersection is to be recognized. In order to express detailed patterns, the smaller the fineness of the weft or warp, the better.

To this end, the conductive fabric formed by the feel coupe processing as described above may satisfy Equations 1 to 4 below.

[Equation 1]

100nm < H1 < H2 < 1cm

[Equation 2]

0.1μm < S1 < 10 mm

[Equation 3]

200 pieces (pick/inch) < D1, D2 < 800 pieces (pick/inch)

[Equation 4]

D1 + 1 < D2 < D1 + 800

(In Equations 1 to 4, H1 is the thickness of the portion to which the feel coupe processing is applied, H2 is the thickness of the portion to which the feel coupe processing is not applied, S1 is the fineness of the fiber to which the feel coupe processing is applied, and D1 is the feel coupe processing Number of strands of fiber applied, D2 is the number of strands of fiber without feel coupe treatment)

Equations 1 and 2 are expressions related to the thickness of the fabric according to the feel coupe processing, and schematically show the degree to which the shape of the fabric can be maintained even though some or all of the weft and warp yarns are removed by the processing. In particular, in connection with Equation 2, it is difficult to spun yarn with a thickness less than the above, and when applied to the above-described covering yarn, not only the covering yarn but also the core can be removed during the peel coupe processing process. As a result, the tensile strength or breaking strength of the fabric is reduced. may go down

As in Equation 1, when the thickness of the portion to which the feel coupe processing is not applied is out of the above range, the weaving property may deteriorate and the flexibility or bendability of the fabric may be deteriorated. When the fineness of the fiber is out of the above range, it is difficult to input both the weft and the warp due to poor weaving properties, and even in the case of metal yarn, yarn breakage may occur frequently during the production process.

In relation to Equation 2, when general fibers are braided with conductive metal yarns to improve electrical conductivity, the electrical resistance per unit length (cm) of one conductive metal yarn (filament) is called SR1, and the When the thickness (fineness) is T, the electrical resistance (SRx) per unit length of a fiber obtained by plying a plurality of the conductive yarns (x) is as shown in Equation 5 below.

[Equation 5]

SRx = SR1/(T×x)

Therefore, the electrical resistance value of Equation 5 has an exponential function, and the improvement of electrical conductivity is stagnant above a certain number, which may reduce practicality. Therefore, in the conductive fabric according to the present invention, it is preferable to adjust the fineness of the fiber to a certain range as in Equation 2 above.

Equations 3 and 4 relate to the density (number of cores) of fibers, and in particular, Equation 4 represents how much the filaments of the fiber bundle forming the weft or warp are cut by the feel coupe process.

Equation 3 shows the number of strands of fibers per inch in the lengthwise direction, the width direction, or the weft direction or the warp direction in the finished fabric, based on any one of the directions.

For example, in Equation 3, when the warp direction is used as a reference, the number of weft yarns woven on the warp yarn indicates how many per inch of warp yarn, and when the weft yarn direction is used as a reference, the number of warp yarns weaving on the weft yarn yarn It indicates how much per inch of weft. That is, Equation 3 can be seen to mean how densely or sparsely the fabric is woven.

In Equation 3, when the number of filaments (density) of the fiber is less than the above range, it is difficult to maintain the conductive fabric fabric structure because the yarn is pushed.

In addition, as shown in Equation 4, fibers (weft yarns, warp yarns) to which feel coupe processing is applied naturally have fewer filaments compared to fibers that do not. In this case, it basically means that the fineness of the weft and warp yarns constituting the fabric is large, so the thickness of the fabric where the feel coupe process is not applied becomes quite thick, and the flexibility or flexibility decreases that much, making it difficult to use as a conductive fabric.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms are used, these are only used in a general sense to easily explain the technical content of the present invention and to help the understanding of the present invention. , it is not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

1: conductive fabric
10: Part with feel coupe processing applied
20: The part where the feel coupe processing is not applied
100: weft
200: slope
210: reference slope
220: first upper slope
230: second upper slope
240: first lower slope
250: second lower slope
300: control device
400: power supply
500: electrode part
A: Judging
B: covering yarn
L: repeat unit

Claims (7)

A conductive fabric including a conductive part, a non-conductive part, and an electrode for supplying current to the conductive part, wherein the conductive fabric has a fil coup on the surface.

) to selectively form a conductive part or a non-conductive part by processing,
The conductive fabric is formed by weaving with a weft and a warp, and includes a conductive fiber in any one or all of the weft and warp,
The interface between the conductive part and the non-conductive part has a curved or straight shape, and the conductive part and the non-conductive part are irregularly mixed,
The conductive fabric is a conductive fabric, characterized in that it satisfies the following formulas 1 to 4.
[Equation 1]
100nm < H1 < H2 < 1cm
[Equation 2]
0.1μm < S1 < 10 mm
[Equation 3]
200 pieces (pick/inch) < D1, D2 < 800 pieces (pick/inch)
[Equation 4]
D1 + 1 < D2 < D1 + 800
(In Equations 1 to 4, H1 is the thickness of the portion to which the feel coupe processing is applied, H2 is the thickness of the portion to which the feel coupe processing is not applied, S1 is the fineness of the fiber to which the feel coupe processing is applied, and D1 is the feel coupe processing The number of filaments of the applied fiber, D2 means the number of filaments of the fiber without the feel coupé process)
The method of claim 1,
The conductive fabric is a conductive fabric, characterized in that at least one or all of the plurality of fibers constituting the weft and warp is made of conductive fibers.
The method of claim 1,
Any one or all of the weft and warp,
Conductive fabric, characterized in that it is formed by covering the conductive fiber with the non-conductive fiber, or by covering the non-conductive fiber with the conductive fiber.
4. The method of claim 2 or 3,
The conductive fiber is a conductive fabric comprising any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel.
4. The method of claim 2 or 3,
The non-conductive fiber is a conductive fabric comprising any one or a plurality of materials selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide.
a1) preparing a non-conductive fiber including any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;
b1) manufacturing a conductive fiber by braiding and twisting a filament formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;
c1) manufacturing a fabric by weaving the non-conductive fiber and the conductive fiber, and weaving the conductive fiber to be included in any one or both of the weft and warp yarns; and
d1) Part of the surface of the woven fabric fil coup (fil coup)

) forming an amorphous non-conductive part by processing;
Conductive fabric manufacturing method comprising a.
a2) preparing a non-conductive fiber including any one or a plurality of fibers selected from cotton, hemp, silk, wool, rayon, polyolefin, polyamide, polyacrylic, polyurethane, and polyimide;
b2) manufacturing a conductive fiber by braiding and twisting a filament formed of any one or a plurality of materials selected from carbon, iron, gold, silver, copper, nickel and stainless steel;
c2) braiding the non-conductive fiber and the conductive fiber;
d2) weaving the braided yarn, conductive fiber, and non-conductive fiber of step c2) to be included in any one or both of the weft yarn and the warp yarn; and
e) fil coup (fil coup) part of the surface of the woven fabric

) forming an amorphous conductive part or non-conductive part by processing;
Conductive fabric manufacturing method comprising a.

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