KR20150111592A - Ply Yarn With Electroconductivity And Clothes With Electroconductivity - Google Patents

Abstract

The present invention relates to electrically conductive synthetic yarn formed by mixing metal yarn made of metals selected among copper, steel, gold, and silver, and general yarn made of an insulating material and an electrically conductive coating product made of the synthetic yarn. According to the present invention, the electrically conductive coating product made of the synthetic yarn can be comfortably worn, washed quickly, and has excellent electrical conductivity to be applied to various products. The coating product can especially be suitable as a coating product for low-frequency electrical stimulation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electroconductive cladding and an electroconductive cladding,

The present invention relates to an electrically conductive composite and an electrically conductive coated product, and more particularly, to an electrically conductive composite product excellent in feeling of wearing, wash fastness and electrical conductivity, and an electrically conductive coated product made of the same.

Background Art [0002] Electrically conductive fibers have been developed so far for the purpose of antistatic characteristics and electric conductivity. Electrically conductive fibers are manufactured by forming a metal film on a synthetic fiber made of an insulating material so as to have a good fit to be applied to clothes. Examples of methods for forming such a metal film include electroless plating, vacuum deposition, sputtering do. However, in order to apply such a method, there is a disadvantage that a cost is incurred because of a costly device.

In the case of Copper, there is known a technique of forming a coating by coordinating copper sulfide with acrylic fibers by taking advantage of the fact that cyano (CN) groups present in acrylic fibers can coordinate bond with monovalent copper ions . Particularly, Patent Registration No. 10-0962268 (registered on Jun. 01, 2010) discloses a conductive copper sulfide nano-particle composition and a method for producing conductive acrylic fiber using the same. This patented invention is to immerse an acrylic fiber having an acrylonitrile repeating unit in a composition containing a copper salt, a reducing agent, a sulfur compound, or the like to cause coordination of copper sulfide on the acrylic fiber.

On the other hand, Patent Registration No. 10-1073524 (registered on October 10, 2011) discloses a conductive nylon fiber manufacturing method. In this patented invention, the nylon fiber is modified so as to have a metal-trapping functional group, and then the nylon fiber is immersed in the copper sulfide nanoparticle composition described in the patent to impart conductivity.

According to the methods of the above patents, copper fibers can be made from acrylic fibers and nylon fibers as base fibers, and copper fibers can be produced by such copper fibers. When the copper clad with the copper clad thus produced is made, such a clad can be usefully used because it has electromagnetic wave shielding and absorption, anti-static, far-infrared radiation, heat storage and antimicrobial properties.

On the other hand, a low-frequency therapy apparatus for treating a human body by providing electrical stimulation to a specific region of the human body with low frequency is often used. In order to apply the low-frequency electrical stimulation to the skin, such a low-frequency treatment apparatus should attach the electrode pad to a desired human body part. For this purpose, it is inconvenient to receive low-frequency treatment in the public facilities or outdoors because the coverings to be worn, for example, socks, gloves, abdominal pads, panties, and bras, must be removed.

To overcome this inconvenience, electrically conductive coatings have been used in low frequency therapy. Since such an electrically conductive covering is woven with a metal wire, an electrode pad can be attached to the electrically conductive covering during low frequency treatment to give electrical stimulation to the human body. Therefore, it is convenient that users can receive low-frequency treatment while wearing such covering materials in the public facilities or outdoors, and the low-frequency electrical stimulation is uniformly distributed throughout the covering due to the electric conductivity, positively affecting the effect of low frequency treatment .

Such a covering product and a low-frequency treatment device are disclosed in Patent Publication No. 10-2008-0045923 (published on May 26, 2008), Patent No. 10-1174312 (registered on Aug. 09, 2012), No. 20 -0313130 (Registered on Apr. 30, 2003), Utility Model Registration No. 20-0425410 (Registered on Aug. 28, 2006).

The above-mentioned copper yarn can be produced by a simple method, and can be said to be practical. However, the copper yarn is somewhat deficient in terms of conductivity and also has a problem that washing fastness with respect to electric conductivity is somewhat insufficient.

Accordingly, an object of the present invention is to provide an electrically conductive composite yarn excellent in feeling of wearing, washing fastness and electrical conductivity, and an electrically conductive coated product made of the same.

According to an aspect of the present invention, there is provided an electroconductive pile formed by mixing a metal wire made of a metal selected from copper, steel, gold, and silver and a common wire made of an insulating material.

The puff is preferably composed of 10 to 50% by weight of the copper yarn, 10 to 50% by weight of the metal yarn, and 10 to 80% by weight of the common yarn.

The copper wire is preferably coated with copper sulfide by coordination bonding to the synthetic fiber.

The synthetic fiber as the base fiber of the copper yarn is preferably a nylon fiber modified to have a metal-trapping functional group or an acrylic fiber having a cyano (CN) functional group.

When the metal sheet is steel sheet, the steel sheet is preferably formed by spinning ordinary short staple fibers made of steel staple fibers and an insulating material.

When the metal yarn is gold or silver, the gold or silver is preferably made of metal filament fibers formed by coating the common filament fiber made of an insulating material by electroless plating of gold or silver.

The present invention also provides an electrically conductive covering made of the above electrically conductive composite.

The covering may be used as an electric stimulating medium for low frequency treatment.

The electrically conductive coated product made of the electrically conductive composite according to the present invention is suitable for various products due to its excellent feeling of wearing, wash fastness and electrical conductivity, and is particularly suitable as a covering product for low frequency electrical stimulation.

FIG. 1 is a graph showing the results of measurement of electrical conductivity for a covering made of a mixture having a composition ratio of steel yarn (20 wt% of steel yarn and 80% of polyester yarn) It's a picture.
FIG. 2 is a photograph of the result of the measurement of the electrical conductivity of the coated article manufactured from 100% of the same.
FIG. 3 is a graph showing the results of measurement of electrical conductivity of a sock formed by mixing 30% by weight of copper yarn, 20% by weight of steel yarn and 50% by weight of polyester yarn and a sock woven with spandex yarn according to an embodiment of the present invention It is a photograph taken.
FIG. 4 is a photograph of the result of an experiment in which the sock is weighed under the same conditions as in FIG. 3, but the electrical conductivity is measured for a sock woven with 100% copper and spandex yarn.
FIG. 5 is a photograph of the result of an experiment in which the sock is weighed under the same conditions as in FIG. 3, but the electrical conductivity is measured for a sock made of 30 wt.% Copper yarn and 70 wt.% Polyester yarn and spandex.
FIG. 6 is a photograph of the result of the measurement of the electrical conductivity of a sock weaving with the same condition as that of FIG. 3 except that the sum of 20 wt% of steel yarn and 80 wt% of polyester yarn and the sock woven with spandex yarn were measured.

Hereinafter, the present invention will be described in detail with reference to the drawings.

Generally, when a covering such as a sock is made of metal yarn, there is a disadvantage in that it is not comfortable to wear or has poor washing fastness depending on the structure of the metal yarn.

First, the metal yarn can be formed as a monofilament yarn formed by elongating a metal. Such a metal yarn has a problem that it is difficult to make a covering such as a sock or the like by itself. Even if a cloth is formed by weaving alternately with other threads, such a metal thread has a stiffness greater than that of a normal thread, so that the manufactured cloth is stiff and poor in wearing comfort.

On the other hand, the metal yarn can be formed by coating a synthetic fiber made of an insulating material, for example, a polyester fiber with a metal. At this time, the polyester fiber used is monofilament fiber, so that the metal fiber is formed of monofilament yarn. The use of a soft synthetic fiber as a base material makes it possible to provide a covering with a metal yarn in the form of a monofilament yarn. However, the metal coatings coated on the synthetic fibers are desorbed as they are used, especially when a large amount of metal coating is removed during washing. That is, the coated article made of such metal yarn has a problem that the washing fastness is not good, and thus the electrical conductivity deteriorates quickly according to the use period.

As the metal to be applied to the metal yarn, gold, silver, copper, and steel may be used. In order to manufacture the cover for the above purpose, gold, silver and copper are pure metal mono It is not appropriate to form the metal yarn by any other method than forming the metal yarn with the filament yarn or the metal coated yarn, but the steel can form the metal yarn by other methods. That is, steel can be formed by spinning steel short monofilament made of steel only and ordinary monofilament made of insulating material. Such steel yarn has no problem of washing fastness, and the stiffness of the metal is alleviated to thereby alleviate the problems of wearing comfort. Of course, Steel is not as good as a metal coating and is not as good as gold, silver and copper in electrical conductivity.

In such a technical situation, the present inventor has made efforts to develop an electrically conductive covering suitable for low-frequency electrical stimulation because of excellent wearing comfort, washing fastness and electric conductivity, and as a result, the present invention has been accomplished.

Accordingly, the electrically conductive composite according to the present invention is formed by mixing a metal yarn made of a metal selected from copper, steel, gold and silver, and a common yarn made of an insulating material. In particular, the electrically conductive composite according to the present invention is preferably composed of 10 to 50% by weight of copper yarn, 10 to 50% by weight of metal yarn, and 10 to 80% by weight of common yarn. As described above, the copper yarn, the metal yarn and the ordinary yarn are appropriately mixed and formed into a yarn, so that the covering made of such yarn has excellent electrical conductivity, comfortability and wash fastness.

In the present invention, it is preferable that the copper fiber is coated with copper sulfide by coordination bonding to the synthetic fiber. In particular, the synthetic fiber which is the base fiber of copper is preferably an nylon fiber modified to have a metal-trapping functional group or an acrylic fiber having a cyano (CN) functional group. Such copper can be produced by the method described in the above-mentioned Patent Registration No. 10-0962268 (Registered on Jun. 01, 2010) and Patent Registration No. 10-1073524 (Registered on October 10, 2011).

In the present invention, when the metal yarn is gold or silver, it is preferable that the gold or silver yarn is made of metal filament fibers formed by coating the ordinary filament fiber made of an insulating material by electroless plating of gold or silver. Metallic yarns are especially monofilament yarns. Herein, ordinary filament fiber made of an insulating material refers to a synthetic fiber or natural fiber made of a polymer material that is artificially produced or naturally present, except for metals and ceramics. Examples of such ordinary filament fibers include polyester fibers, acrylic fibers and nylon fibers. The thickness of the metal yarn can be appropriately selected.

In the present invention, in the case where the metal yarn is steel yarn, the steel yarn is preferably formed by spinning ordinary short fibers made of steel short fibers and insulating material. Here, general short fibers made of an insulating material refers to synthetic fibers or natural fibers made of a polymer material that is artificially produced or naturally present, except for metals and ceramics. Examples of such conventional short fibers are the same as those mentioned above. As the short staple fibers, polyester staple fibers can be used in particular. The thickness of steel can be selected appropriately.

In the present invention, a general yarn made of an insulating material is made of synthetic fibers or natural fibers made of a polymer material that is artificially made or naturally present, except for metals and ceramics. Examples of such general yarn materials include polyester fibers, acrylic fibers and nylon fibers. As such a warp yarn, especially those formed of polyester fibers can be used. The thickness of general yarn can be selected appropriately.

In the present invention, as a method for producing the metal yarn, the copper yarn, and the ordinary yarn by mixing them, a commonly known yarn manufacturing method can be directly applied. For example, three yarns may be uniformly twisted to form a yarn, or a regular yarn may be used as a core yarn, and metal yarns and copper yarns may be twisted around the yarns to form a yarn.

The present invention provides an electrically conductive coated article made of the above electrically conductive composite. Such a covering according to the present invention may be used as an electric stimulating medium for low frequency treatment.

The covering of the present invention may be made of only the above-mentioned ply, but may also include other yarns, for example, spandex yarn. The spandex yarn in the covering of the present invention may be wholly included or may be locally contained in a portion where elasticity is particularly required. The manner in which spandex yarns are included may be alternately woven yarns and spandex yarns according to the present invention, or spandex yarns may be formed on the core and the yarns according to the present invention may be woven or knitted in the form of surrounding spandex yarns.

The electrically conductive covering of the present invention can be manufactured in various products such as socks, gloves, panties, abdominal pads, panties, bra and the like. The electrically conductive covering of the present invention having such a constitution also suggests a completely new material composition of metal yarn, copper yarn and general yarn.

Considering generally, it is expected that the composite consisting of metal yarn, copper yarn and ordinary yarn will have the average characteristics of such yarns, and that such average characteristics do not provide a particular use or advantage over the manufacturing cost of the yarn, It can be assumed that it has not been manufactured or sold. However, according to the experiment of the present inventors, in terms of electrical conductivity, such a pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo pseudo Pseudo These results were unpredictable.

Thus, the inventor of the present invention has confirmed that the coated product made of such a ply is particularly excellent in electric conductivity. Such a covering is useful when used as an antistatic product or as a product requiring electrical conductivity, and is particularly suitable for use as an electric stimulating medium for low frequency treatment.

Specifically, when Steel Corporation manufactures the covering only by itself, the rigidity is so large that it is not comfortable to wear. Steel Co., Ltd. is preferred to be mixed with ordinary yarns, for example, polyester yarn, in an appropriate ratio in order to have a suitable fit to be applied to clothes. Referring to FIG. 1, when 20% by weight of steel yarn and 80% by weight of polyester yarn were formed, the feeling of wearing was appropriate as clothes, and when resistance was measured, 18 ohms was exhibited.

Meanwhile, referring to FIG. 2, the copper yarn manufactured according to the above patents is suitable for making clothes only by itself, and when the resistance is measured, it shows 8 ohms. Therefore, when copper is applied to clothes, electrical conductivity is better than that of steel. However, as described above, the steel has good washing fastness while the copper sulfide coating is desorbed due to washing, so that the washing fastness of the steel is not good compared with that of steel. Further, gold and silver are mixed with filament fibers by electroless plating The fastness to washing is not good compared with gold and silver yarn prepared by coating.

Next, referring to FIG. 3, a pile was formed from 20% of steel yarn, 30% of copper yarn and 50% of polyester yarn, and then the slack was mixed with spandex yarn to produce socks. Here, the ratio means a weight ratio, and so on. The electrical conductivity of the so-prepared sock was measured with a resistance meter. As a result, the resistance was 38 ohms.

Referring to FIG. 4, when the socks were manufactured under the same conditions as those of the socks of FIG. 3 except that 100% of copper yarn was mixed with spandex to produce socks, the electrical resistance of the socks was 108 ohms. From these results, it can be seen that the coated product manufactured by the present invention has superior electrical conductivity than the coated product made of copper.

Next, referring to FIG. 5, the socks were produced under the same conditions as the socks of FIG. However, only 30% of copper yarns and 70% of polyester yarns were formed. The electrical conductivity of the so-prepared sock was measured with a resistance meter. As a result, the resistance was 970 ohms.

Next, referring to FIG. 6, the socks were produced under the same conditions as the socks of FIG. However, only 20% of steel yarn and 80% of polyester yarn were formed, and the difference was only different. The electrical conductivity of the so-prepared sock was measured with a resistance meter. As a result, the resistance was 159 ohms.

Since the reciprocal of the resistance represents electrical conductivity, it is generally expected that the sum of the reciprocal of the resistance measured in Fig. 5 and the reciprocal of the resistance measured in Fig. 6 substantially matches the reciprocal of the resistance measured in Fig. It has been found, however, that the electrically conductive coating of the present invention has much better electrical conductivity than expected.

According to this characteristic, the electroconductive coating product of the present invention can be used as a coating product for preventing static electricity and a coating product requiring electric conductivity, especially a conventional product used as an electric stimulating medium for low frequency treatment, such as steel yarn, It has been confirmed that it can be sufficiently used as an electric stimulation medium for low frequency treatment because of its advantage of being excellent in electric conductivity despite the disadvantage that it is more troublesome to manufacture than the electroconductive coating product to be manufactured and the electroconductive coating product to be made of copper .

In addition, since the electrically conductive covering of the present invention is made of a copper yarn, a metal yarn, and a general yarn, even if the copper sulfide coated on the copper yarn is slightly removed due to continuous washing and the electrical conductivity deteriorates, Since the electrical conductivity is minimized by the metal yarn, especially the steel yarn, not only the advantage of no rapid deterioration of the electrical conductivity but also the copper yarn of the copper yarn, metal yarn and general yarn So that the washing fastness is much improved compared to the coated product formed only by the company.

Therefore, the electroconductive covering product of the present invention is characterized by having characteristics such that the feeling of wearing, the washing fastness, and the electrical conductivity are both improved by the feature of being composed of copper yarn, metal yarn and general yarn. This specificity of the electroconductive coating according to the invention makes it possible to use the coating of the invention as a covering which is required to have good electrical conductivity, in particular as a covering which is used as an electrical stimulating medium for low frequency treatment.

In addition, since the electroconductive coating product of the present invention has electromagnetic shielding and absorption, anti-static, far-infrared radiation, heat storage and antimicrobial properties, it can be used for applications other than electric stimulation media for low frequency treatment.

Claims (8)

A conductive yarn formed by mixing a metal yarn made of a metal selected from copper, steel, gold and silver, and an ordinary yarn made of an insulating material. The method according to claim 1,
Wherein the copper yarn comprises 10 to 50% by weight of the copper yarn, 10 to 50% by weight of the metal yarn, and 10 to 80% by weight of the common yarn. 3. The method according to any one of claims 1 to 2,
Wherein the copper yarn is coated on the synthetic fiber by coordination bonding of copper sulfide. The method of claim 3,
Wherein the synthetic fiber as the base fiber of the copper yarn is an nylon fiber modified to have a metal-trapping functional group or an acrylic fiber having a cyano (CN) functional group. 5. The method according to any one of claims 1 to 4,
Wherein when the metal sheet is steel, the steel sheet is formed by spinning ordinary staple fibers made of a steel staple fiber and an insulating material. 5. The method according to any one of claims 1 to 4,
Wherein when the metal yarn is gold or silver, the gold or silver yarn is made of metal filament fibers formed by coating an ordinary filament fiber made of an insulating material with gold or silver by electroless plating. An electrically conductive covering made of an electrically conductive composite according to any one of claims 1 to 6. 8. The method of claim 7,
Wherein said covering is used as an electric stimulating medium for low frequency treatment.

Images