US20100300060A1 - Conductive yarn capable of withstanding dyeing, finishing and washing - Google Patents
Conductive yarn capable of withstanding dyeing, finishing and washing Download PDFInfo
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- US20100300060A1 US20100300060A1 US12/787,378 US78737810A US2010300060A1 US 20100300060 A1 US20100300060 A1 US 20100300060A1 US 78737810 A US78737810 A US 78737810A US 2010300060 A1 US2010300060 A1 US 2010300060A1
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- Prior art keywords
- conductive
- alloys
- yarn
- corrosion
- core
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
Definitions
- This present invention relates to a conductive yarn, and more in particular, to a conductive yarn capable of withstanding dyeing, finishing and washing.
- conductive yarns and wearable electronic devices made of such conductive yarns during manufacture thereof all are to be experienced dyeing and finishing procedures (including yarn dyeing, fabric dyeing), and washing procedures. Therefore, the conductive yarns are bound to be subjected to attack of acidic or alkaline dye bath, oxidizing agents, reducing agents, detergents, bleaches, and so on. In addition, during the procedures and using, the conductive yarns always suffer from very complicated stresses and can be easily fractured. Finally, the conductive yarn loses the conductivity and quality.
- conductive yarns uses traditional copper wires with excellent conductivity to be conductive yarns.
- copper wires are not suitable to be used as material of the conductive yarns because the copper wire is too stiff to be a yarn for textile fabrication processes, and copper doesn't perform well in oxidation and corrosion.
- conductive yarns uses polymer filaments with conductive particles doping or plating to form conductive yarns or filaments.
- the doping or plating procedure takes higher cost, and the conductivity of the conductive yarns or filaments is much lower than that of the metal wire.
- the conductive polymer yarns or filaments cannot be welded upon the traditional electronic device with traditional electronic skills.
- conductive yarns uses enamel covered copper wires as raw material to form conductive yarns.
- the enamel covered copper wires need to be peeled to bare the copper wires therein, and the peeling procedure of the enamel covered copper wires needs to be performed by immersing the enamel covered copper wires in chemicals.
- the use of the enamel covered copper wires as raw material to form conductive yarns cannot still prevent from corrosion problem.
- FIGS. 1A and 1B those figures disclose another prior art regarding conductive yarns.
- FIG. 1A illustratively shows the structure of a conductive yarn 10 disclosed in specification of U.S. Pat. No. 5,927,060.
- FIG. 1B is a sectional view of the conductive yarn 10 shown in FIG. 1A along the A-A line.
- the conductive yarn 10 includes a core yarn 12 constituted by a plurality of synthetic filaments.
- the core yarn 12 is covered by at least two up to at most four metal filaments of stainless steel.
- the core yarn 12 of the example shown in FIG. 1A is covered by a metal filament 14 and another metal filament 16 extending in a direction opposite that of the metal filament 14 .
- the metal filaments ( 14 , 16 ) do not fully cover the core yarn 12 .
- complicated mechanical stresses introduced by processing environment or using environment is extremely likely to apply a higher thrust F to the metal filaments ( 14 , 16 ), as shown in FIG. 1B .
- the contact area of the metal filaments ( 14 , 16 ) with the contact surface of the core yarn 12 wound by the metal filaments ( 14 , 16 ) is very narrow and even nearly equal to a line.
- the metal filament ( 14 , 16 ) is difficult to hold the core yarn 10 because the contact surface between the wire and the core yarn is very small, and the elongation of metal filament ( 14 , 16 ) is difficult to match the elongation of the core yarn 10 , hence the fabrication process can easily cause the protuberance of the metal filament ( 14 , 16 ).
- one aspect of the invention is to provide a conductive yarn.
- the conductive yarn according to the invention is capable of withstanding dyeing, finishing and washing, and has excellent stress resistance, better conductivity, softness and flexibility such that it can be easily used in a conventional textile fabrication process such as weaving, knitting and braiding to become a conductive portion of textile article or be served as a conductive sewing thread.
- the conductive yarn provides an intimate structure between the surface conductive material (rolled metal wires) and core material (core yarn). The intimate structure can ensure the surface conductive material will not be fractured, and have a better and uniform conductivity.
- the conductive yarn structure includes a core yarn and at least one rolled metal wire with corrosion or oxidation protection.
- the core yarn is constituted by at least one conductive core wire or filament with corrosion or oxidation protection, at least one short metal fiber yarns of with corrosion or oxidation protection, at least one non-conductive core filament or at least one non-conductive short fiber yarn.
- the at least one rolled wire is respectively and spirally wound around the core yarn.
- materials used to fabricate the at least one rolled metal wire with corrosion or oxidation protection, the at least one conductive wire or filament with corrosion or oxidation protection and the at least one short metal fiber yarns with corrosion or oxidation protection respectively can be tin plating copper, gold plating copper, nickel plating copper, stainless steels (e.g., 316, 304, 420, containing copper stainless steel, and containing silver stainless steel), titanium, titanium alloys (e.g., TA0, TA1, TA2, TA3, TA7, TA9, TA10, TC1, TC2, TC3, TC4(Ti6A14V)), nickel, silver, gold, nichrome, Ni—Cr—Mo—W alloys, tungsten, platinum, palladium, zirconium, zirconium alloys (e.g., alloy 702, alloy 704, alloy 705, alloy 706), tantalum, CuNi alloys, CuNiSi alloys, CuNiZn alloys,
- the material used to fabricate aforesaid the non-conductive core filament and the non-conductive short fibers can be polyester, polyamide, polyacrylic, polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, poly-p-phenylenebenzobisoxazole (PBO), polyetherketone, carbon, glass fiber, or other commercial materials to make non-conductive yarns.
- FIG. 1A illustratively shows a structure of a conductive yarn 10 according the prior art.
- FIG. 1B is a sectional view of the conductive yarn shown in FIG. 1A along the A-A line.
- FIG. 2A illustratively shows a structure of a conductive yarn 20 according to a preferred embodiment of the invention.
- FIG. 2B is a sectional view of the metal wire 24 without rolling shown in FIG. 2A along the C-C line and a sectional view of the rolled metal wire 24 shown in FIG. 2A along the C′′-C′′ line.
- FIG. 2C is a sectional view of the conductive yarn shown in FIG. 2A along the B-B line.
- FIG. 3A is an SEM photograph of the conductive yarn 20 according to the preferred embodiment of the invention.
- FIG. 3B is another SEM photograph showing the magnified view of a distal end of the conductive yarn 20 shown in FIG. 3A .
- FIG. 2A illustratively shows a structure of a conductive yarn 20 according to a preferred embodiment of the invention.
- FIG. 2B is a sectional view of the metal wire 24 without rolling shown in FIG. 2A along the C-C line and a sectional view of the rolled metal wire 24 shown in FIG. 2A along the C′′-C′′ line.
- FIG. 2C is a sectional view of the conductive yarn shown in FIG. 2A along the B-B line.
- the conductive yarn 20 includes a core yarn 22 and at least one rolled metal wire 24 with corrosion or oxidation protection.
- the core yarn 22 is constituted by at least one conductive core wire or filament with corrosion or oxidation protection, at least one short metal fiber yarns with corrosion or oxidation protection, at least one non-conductive core filament or at least one non-conductive short fiber yarn.
- the core yarn 22 is constituted by a plurality of core filaments 222 .
- At least one rolled metal wire 24 is respectively and spirally wound around the core yarn 22 .
- the core yarn 22 is spiral wound around by the rolled metal wires 24 .
- the number of the rolled metal wires 24 spirally winding around the core yarn 22 depends on practical requirement of the conductive yarn 20 , such as conductivity, softness, flexibility, mechanical properties, and so on.
- FIG. 2A there is gap existing between neighboring encircles of the same rolled metal wire 24 wound around the core yarn 22 .
- the neighboring encircles of the same rolled metal wire 24 wound around the core yarn 22 might be overlapped partially.
- materials used to fabricate the at least one rolled metal wire 24 with corrosion or oxidation protection, the at least one conductive core wire or filament 22 with corrosion or oxidation protection and the at least one short metal fiber core yarns 22 with corrosion or oxidation protection respectively can be tin plating copper, gold plating copper, nickel plating copper, stainless steels (e.g., 316, 304, 420, containing copper stainless steel, and containing silver stainless steel), titanium, titanium alloys (e.g., TA0, TA1, TA2, TA3, TA7, TA9, TA10, TC1, TC2, TC3, TC4(Ti6A14V)), nickel, silver, gold, nichrome, Ni—Cr—Mo—W alloys, tungsten, platinum, palladium, zirconium, zirconium alloys (e.g., alloy 702, alloy 704, alloy 705, alloy 706), tantalum, CuNi alloys, CuNiSi alloys, CuNi
- material used to fabricate aforesaid the non-conductive core filament and the non-conductive short fibers can be polyester, polyamide, polyacrylic, polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, poly-p-phenylenebenzobisoxazole (PBO), polyetherketone, carbon, glass fiber, or other commercial materials to make non-conductive yarns.
- the structure of conductive yarn 20 can designed according to functional requirement such yield tension, yield torsion, fire resistance, conductivity and so on.
- the metal wire 24 without rolling has a length t, a diameter d, and a volume equal to ⁇ (d/2) 2 xt, and has the contact area with the core yarn 22 nearly equal to a line.
- the rolled metal wire 24 similarly with a length t, has a thickness d/5 and a volume equal to that of the metal wire 24 without rolling, and has the contact area with the core yarn 22 equal to 4dxt.
- the invention is to roll the metal wire to get the rolled metal wire having identical volume to that of the metal wire without rolling and but the larger contact area with the core yarn where the rolled metal wire is spirally wound around the core yarn.
- the conductive yarn 20 By tightly winding the rolled metal wire 24 around the core yarn 22 , the conductive yarn 20 according to the invention has considerable compliance between the core yarn 22 and the rolled metal wire 24 . More importantly, during the dying, finishing, washing and using of the conductive yarn 20 , it is very likely to apply a higher thrust F to the rolled metal wire 24 , as shown in FIG. 2C . And as shown in FIG. 2C , the rolled metal wire 24 is completely cover the core yarn 22 and has the larger contact area with the core yarn 22 .
- the environment-induced shear stress exerting on the environment of the rolled metal wire 24 is much higher than the environment-induced shear stress exerting on the metal wire without rolling of the prior art, such that the rolled metal wire 24 is very difficult to be removed from the original position, or cannot be pushed away from the core yarn 22 , or cannot be fractured.
- the cover width 4 d of the rolled metal wire can be easily adjusted by rolling force according to the demand of softness of the conductive yarn.
- the conductive yarn 20 according to the invention has excellent yarn softness and flexibility such that it is available to be easily woven in a conventional textile way into a conductive portion of a textile article, or to be served as a conductive sewing thread. The fabrication process would not cause any protuberance of the rolled metal wire 24 because the rolled metal wire 24 with large cover width can hold the core yarn 22 much tied.
- the layer of the rolled metal wire is at least one layer.
- the number of the layer can be increased by increasing number of the metal wire during the rolling procedure to increase the conductivity.
- the excellent stress resistance also ensures a uniform conductivity.
- the conductive yarn 20 is capable of resisting corrosion resulting from for example acidic or alkaline agent, oxidant, reducing agent, detergent, bleach and so on, and maintains its original conductivity. Furthermore, the conductive yarn 20 according to the invention has excellent yarn softness and flexibility such that it can be easily used in a conventional textile fabrication process such as weaving, knitting and braiding to become a conductive portion of textile article or be served as a conductive sewing thread.
- the at least one rolled metal wire is also pressed in a pattern during being rolled by a pattern carved roller.
- the surface of the at least one rolled metal wire 24 has the corresponding pattern 26 .
- the surface of the rolled metal wire 24 can provide different light refractions to produce different visual effects by use of different patterns 26 .
- the rolled metal wire 24 with pattern of the invention can also provide anti-counterfeiting features by use specific patterns 26 .
- FIG. 3A is an SEM photograph of the conductive yarn 20 according to the preferred embodiment of the invention.
- FIG. 3B is another SEM photograph showing the magnified view of a distal end of the conductive yarn 20 shown in FIG. 3A .
- the rolled metal wire 24 completely covers the core yarn 22 constituted by a plurality of filament, and has large contact area with the core yarn 22 .
- the conductive yarn 20 has considerable compliance between the core yarn 22 and the rolled metal wire 24 . That is, the conductive yarn 20 according to the invention provides an intimate structure between the surface conductive material (rolled metal wires) and core material (core yarn). The intimate structure can ensure the surface conductive material will not be fractured, and have a better and uniform conductivity.
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a conductive yarn including a core yarn and at least one rolled metal wire with a corrosion or oxidation protection which is respectively and spirally wound around the core yarn. The conductive yarn according to the invention is capable of withstanding dyeing, finishing and washing, and has excellent stress resistance, better conductivity, yarn softness and flexibility such that it can be easily in a conventional textile fabrication process to become a conductive portion of textile article or be served as a conductive sewing thread. Moreover, according to the invention, the conductive yarn provides an intimate structure between the surface conductive material (rolled metal wires) and core material (core yarn). The structure can ensure the surface conductive material will not be fractured, and have a better and uniform conductivity.
Description
- 1. Field of the Invention
- This present invention relates to a conductive yarn, and more in particular, to a conductive yarn capable of withstanding dyeing, finishing and washing.
- 2. Description of the Prior Art
- It is well known that conductive yarns used in textile articles made in various textile ways serves as circuitry, physiological detectors, electrodes, and other wearable electronic devices.
- Just like manufacture of general textile articles, conductive yarns and wearable electronic devices made of such conductive yarns during manufacture thereof all are to be experienced dyeing and finishing procedures (including yarn dyeing, fabric dyeing), and washing procedures. Therefore, the conductive yarns are bound to be subjected to attack of acidic or alkaline dye bath, oxidizing agents, reducing agents, detergents, bleaches, and so on. In addition, during the procedures and using, the conductive yarns always suffer from very complicated stresses and can be easily fractured. Finally, the conductive yarn loses the conductivity and quality.
- One prior art regarding conductive yarns uses traditional copper wires with excellent conductivity to be conductive yarns. However, copper wires are not suitable to be used as material of the conductive yarns because the copper wire is too stiff to be a yarn for textile fabrication processes, and copper doesn't perform well in oxidation and corrosion.
- One other prior art regarding conductive yarns uses polymer filaments with conductive particles doping or plating to form conductive yarns or filaments. However, the doping or plating procedure takes higher cost, and the conductivity of the conductive yarns or filaments is much lower than that of the metal wire. In addition, the conductive polymer yarns or filaments cannot be welded upon the traditional electronic device with traditional electronic skills.
- One other prior art regarding conductive yarns uses enamel covered copper wires as raw material to form conductive yarns. However, during manufacture of a wearable electronic device utilizing such conductive yarns, the enamel covered copper wires need to be peeled to bare the copper wires therein, and the peeling procedure of the enamel covered copper wires needs to be performed by immersing the enamel covered copper wires in chemicals. Hence, the use of the enamel covered copper wires as raw material to form conductive yarns cannot still prevent from corrosion problem.
- Referring to
FIGS. 1A and 1B , those figures disclose another prior art regarding conductive yarns.FIG. 1A illustratively shows the structure of aconductive yarn 10 disclosed in specification of U.S. Pat. No. 5,927,060.FIG. 1B is a sectional view of theconductive yarn 10 shown inFIG. 1A along the A-A line. - As shown in
FIG. 1A , theconductive yarn 10 according to the prior art includes acore yarn 12 constituted by a plurality of synthetic filaments. Thecore yarn 12 is covered by at least two up to at most four metal filaments of stainless steel. Thecore yarn 12 of the example shown inFIG. 1A is covered by ametal filament 14 and anothermetal filament 16 extending in a direction opposite that of themetal filament 14. - However, as shown in
FIG. 1A , the metal filaments (14, 16) do not fully cover thecore yarn 12. During dyeing, finishing, washing and using of theconductive yarn 10, complicated mechanical stresses introduced by processing environment or using environment, is extremely likely to apply a higher thrust F to the metal filaments (14, 16), as shown inFIG. 1B . Moreover, as shown inFIG. 1B , the contact area of the metal filaments (14, 16) with the contact surface of thecore yarn 12 wound by the metal filaments (14, 16) is very narrow and even nearly equal to a line. Because the shear stress is: τ=F/A where τ represents the shear stress, F represents the thrust (shear force), and A represents the contact surface (shear surface), it is obvious that processing environment or using environment make the metal filaments (14, 16) extremely vulnerable to environment-induced shear stress such that the metal filaments (14, 16) are subsequently shifted from the original winding location on the contact surface of thecore yarn 12, and even pushed away from thecore yarn 10, and finally broke. Therefore, the conductive yarn shown inFIG. 1A of the prior art in the long-term easily loses its conductivity, and the metal filament fragments make wearers feel uncomfortable or itchy. - In addition, the metal filament (14, 16) is difficult to hold the
core yarn 10 because the contact surface between the wire and the core yarn is very small, and the elongation of metal filament (14, 16) is difficult to match the elongation of thecore yarn 10, hence the fabrication process can easily cause the protuberance of the metal filament (14, 16). - Accordingly, one aspect of the invention is to provide a conductive yarn. And in particular, the conductive yarn according to the invention is capable of withstanding dyeing, finishing and washing, and has excellent stress resistance, better conductivity, softness and flexibility such that it can be easily used in a conventional textile fabrication process such as weaving, knitting and braiding to become a conductive portion of textile article or be served as a conductive sewing thread. Moreover, according to the invention, the conductive yarn provides an intimate structure between the surface conductive material (rolled metal wires) and core material (core yarn). The intimate structure can ensure the surface conductive material will not be fractured, and have a better and uniform conductivity.
- According to a preferred embodiment of the invention, the conductive yarn structure includes a core yarn and at least one rolled metal wire with corrosion or oxidation protection. The core yarn is constituted by at least one conductive core wire or filament with corrosion or oxidation protection, at least one short metal fiber yarns of with corrosion or oxidation protection, at least one non-conductive core filament or at least one non-conductive short fiber yarn. The at least one rolled wire is respectively and spirally wound around the core yarn.
- In one embodiment, materials used to fabricate the at least one rolled metal wire with corrosion or oxidation protection, the at least one conductive wire or filament with corrosion or oxidation protection and the at least one short metal fiber yarns with corrosion or oxidation protection respectively can be tin plating copper, gold plating copper, nickel plating copper, stainless steels (e.g., 316, 304, 420, containing copper stainless steel, and containing silver stainless steel), titanium, titanium alloys (e.g., TA0, TA1, TA2, TA3, TA7, TA9, TA10, TC1, TC2, TC3, TC4(Ti6A14V)), nickel, silver, gold, nichrome, Ni—Cr—Mo—W alloys, tungsten, platinum, palladium, zirconium, zirconium alloys (e.g., alloy 702, alloy 704, alloy 705, alloy 706), tantalum, CuNi alloys, CuNiSi alloys, CuNiZn alloys, CuNiSn alloys, CuCr alloys, CuAg alloys, CuW alloys, HASTELLOY type alloys (e.g., alloy C-22, alloy B-2, alloy C-22), NICKEL type alloys (e.g., Nickel 200, Nickel 201), MONEL type alloys (e.g., alloy 400, alloy R-405, alloy K-500), ICONEL type alloys (e.g., alloy 600, alloy 625), FERRALIUM type alloys (alloy 255), NITRONIC type alloys (e.g., NITRONIC 60, NITRONIC 50, NITRONIC 30), CARPENTER type alloys (alloy 20Cb-3), or other commercial of corrosion-resistant metals or alloys.
- The material used to fabricate aforesaid the non-conductive core filament and the non-conductive short fibers can be polyester, polyamide, polyacrylic, polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, poly-p-phenylenebenzobisoxazole (PBO), polyetherketone, carbon, glass fiber, or other commercial materials to make non-conductive yarns.
- The aspect of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment, which is illustrated in the following figures and drawings.
-
FIG. 1A illustratively shows a structure of aconductive yarn 10 according the prior art. -
FIG. 1B is a sectional view of the conductive yarn shown inFIG. 1A along the A-A line. -
FIG. 2A illustratively shows a structure of aconductive yarn 20 according to a preferred embodiment of the invention. -
FIG. 2B is a sectional view of themetal wire 24 without rolling shown inFIG. 2A along the C-C line and a sectional view of the rolledmetal wire 24 shown inFIG. 2A along the C″-C″ line. -
FIG. 2C is a sectional view of the conductive yarn shown inFIG. 2A along the B-B line. -
FIG. 3A is an SEM photograph of theconductive yarn 20 according to the preferred embodiment of the invention. -
FIG. 3B is another SEM photograph showing the magnified view of a distal end of theconductive yarn 20 shown inFIG. 3A . - Some preferred embodiments and practical applications of this present invention would be explained in the following paragraph, describing the characteristics, spirit and advantages of the invention.
- Referring to
FIGS. 2A , 2B and 2C, theFIG. 2A illustratively shows a structure of aconductive yarn 20 according to a preferred embodiment of the invention.FIG. 2B is a sectional view of themetal wire 24 without rolling shown inFIG. 2A along the C-C line and a sectional view of the rolledmetal wire 24 shown inFIG. 2A along the C″-C″ line.FIG. 2C is a sectional view of the conductive yarn shown inFIG. 2A along the B-B line. - As shown in
FIG. 2A , theconductive yarn 20 according to the preferred embodiment of the invention includes acore yarn 22 and at least one rolledmetal wire 24 with corrosion or oxidation protection. - In practical application, the
core yarn 22 is constituted by at least one conductive core wire or filament with corrosion or oxidation protection, at least one short metal fiber yarns with corrosion or oxidation protection, at least one non-conductive core filament or at least one non-conductive short fiber yarn. In the embodiment shown inFIG. 2A , thecore yarn 22 is constituted by a plurality ofcore filaments 222. - According to the preferred embodiment of the invention, at least one rolled
metal wire 24 is respectively and spirally wound around thecore yarn 22. In the embodiment shown inFIG. 2A , thecore yarn 22 is spiral wound around by the rolledmetal wires 24. In practical application, the number of the rolledmetal wires 24 spirally winding around thecore yarn 22 depends on practical requirement of theconductive yarn 20, such as conductivity, softness, flexibility, mechanical properties, and so on. - Also shown in
FIG. 2A , there is gap existing between neighboring encircles of the same rolledmetal wire 24 wound around thecore yarn 22. In practical application, according to practical requirement of theconductive yarn 20, such as conductivity, softness, flexibility, and mechanical properties, etc., the neighboring encircles of the same rolledmetal wire 24 wound around thecore yarn 22 might be overlapped partially. - In one embodiment, materials used to fabricate the at least one rolled metal wire 24 with corrosion or oxidation protection, the at least one conductive core wire or filament 22 with corrosion or oxidation protection and the at least one short metal fiber core yarns 22 with corrosion or oxidation protection respectively can be tin plating copper, gold plating copper, nickel plating copper, stainless steels (e.g., 316, 304, 420, containing copper stainless steel, and containing silver stainless steel), titanium, titanium alloys (e.g., TA0, TA1, TA2, TA3, TA7, TA9, TA10, TC1, TC2, TC3, TC4(Ti6A14V)), nickel, silver, gold, nichrome, Ni—Cr—Mo—W alloys, tungsten, platinum, palladium, zirconium, zirconium alloys (e.g., alloy 702, alloy 704, alloy 705, alloy 706), tantalum, CuNi alloys, CuNiSi alloys, CuNiZn alloys, CuNiSn alloys, CuCr alloys, CuAg alloys, CuW alloys, HASTELLOY type alloys (e.g., alloy C-22, alloy B-2, alloy C-22), NICKEL type alloys (e.g., Nickel 200, Nickel 201), MONEL type alloys (e.g., alloy 400, alloy R-405, alloy K-500), ICONEL type alloys (e.g., alloy 600, alloy 625), FERRALIUM type alloys (alloy 255), NITRONIC type alloys (e.g., NITRONIC 60, NITRONIC 50, NITRONIC 30), CARPENTER type alloys (alloy 20Cb-3), or other commercial corrosion-resistant metals or alloys.
- In one embodiment, material used to fabricate aforesaid the non-conductive core filament and the non-conductive short fibers can be polyester, polyamide, polyacrylic, polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, poly-p-phenylenebenzobisoxazole (PBO), polyetherketone, carbon, glass fiber, or other commercial materials to make non-conductive yarns.
- According to the preferred embodiment of the invention, the structure of
conductive yarn 20 can designed according to functional requirement such yield tension, yield torsion, fire resistance, conductivity and so on. - As shown in
FIG. 2B , themetal wire 24 without rolling has a length t, a diameter d, and a volume equal to π (d/2)2xt, and has the contact area with thecore yarn 22 nearly equal to a line. Also shown inFIG. 2B , the rolledmetal wire 24, similarly with a length t, has a thickness d/5 and a volume equal to that of themetal wire 24 without rolling, and has the contact area with thecore yarn 22 equal to 4dxt. - Obviously, different from the prior art, the invention is to roll the metal wire to get the rolled metal wire having identical volume to that of the metal wire without rolling and but the larger contact area with the core yarn where the rolled metal wire is spirally wound around the core yarn. By tightly winding the rolled
metal wire 24 around thecore yarn 22, theconductive yarn 20 according to the invention has considerable compliance between thecore yarn 22 and the rolledmetal wire 24. More importantly, during the dying, finishing, washing and using of theconductive yarn 20, it is very likely to apply a higher thrust F to the rolledmetal wire 24, as shown inFIG. 2C . And as shown inFIG. 2C , the rolledmetal wire 24 is completely cover thecore yarn 22 and has the larger contact area with thecore yarn 22. It is obviously that the environment-induced shear stress exerting on the environment of the rolledmetal wire 24 is much higher than the environment-induced shear stress exerting on the metal wire without rolling of the prior art, such that the rolledmetal wire 24 is very difficult to be removed from the original position, or cannot be pushed away from thecore yarn 22, or cannot be fractured. - In addition, in
FIG. 2B , thecover width 4 d of the rolled metal wire can be easily adjusted by rolling force according to the demand of softness of the conductive yarn. - The smaller the cover width is, the softer the conductive yarn is. However, the smaller the cover width is, the weaker the stress resistance is. The
conductive yarn 20 according to the invention has excellent yarn softness and flexibility such that it is available to be easily woven in a conventional textile way into a conductive portion of a textile article, or to be served as a conductive sewing thread. The fabrication process would not cause any protuberance of the rolledmetal wire 24 because the rolledmetal wire 24 with large cover width can hold thecore yarn 22 much tied. - In addition, in
FIG. 2A , the layer of the rolled metal wire is at least one layer. The number of the layer can be increased by increasing number of the metal wire during the rolling procedure to increase the conductivity. Furthermore, the excellent stress resistance also ensures a uniform conductivity. - During dyeing, finishing, washing and using of the
conductive yarn 20, it is obviously that theconductive yarn 20 is capable of resisting corrosion resulting from for example acidic or alkaline agent, oxidant, reducing agent, detergent, bleach and so on, and maintains its original conductivity. Furthermore, theconductive yarn 20 according to the invention has excellent yarn softness and flexibility such that it can be easily used in a conventional textile fabrication process such as weaving, knitting and braiding to become a conductive portion of textile article or be served as a conductive sewing thread. - Also shown in
FIG. 2A , according to another preferred embodiment of the invention, the at least one rolled metal wire is also pressed in a pattern during being rolled by a pattern carved roller. In this way, the surface of the at least one rolledmetal wire 24 has thecorresponding pattern 26. The surface of the rolledmetal wire 24 can provide different light refractions to produce different visual effects by use ofdifferent patterns 26. In addition, the rolledmetal wire 24 with pattern of the invention can also provide anti-counterfeiting features by usespecific patterns 26. - Referring to
FIG. 3A andFIG. 3B ,FIG. 3A is an SEM photograph of theconductive yarn 20 according to the preferred embodiment of the invention.FIG. 3B is another SEM photograph showing the magnified view of a distal end of theconductive yarn 20 shown inFIG. 3A . - As shown in
FIG. 3A , the rolledmetal wire 24 completely covers thecore yarn 22 constituted by a plurality of filament, and has large contact area with thecore yarn 22. As shown inFIG. 3B , theconductive yarn 20 has considerable compliance between thecore yarn 22 and the rolledmetal wire 24. That is, theconductive yarn 20 according to the invention provides an intimate structure between the surface conductive material (rolled metal wires) and core material (core yarn). The intimate structure can ensure the surface conductive material will not be fractured, and have a better and uniform conductivity. - With the example and explanations above, the features and spirits of the invention will be hopefully well described. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teaching of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (4)
1. A conductive yarn, comprising:
a core yarn selected from the group consisting of at least one conductive core wire or filament with corrosion or oxidation protection, at least one short metal fiber yarns with corrosion or oxidation protection, at least one non-conductive core filament or at least one non-conductive short fiber yarn; and
at least one rolled metal wire with corrosion or oxidation protection spirally winding around the core yarn;
whereby said conductive yarn is capable of withstanding dyeing, finishing and washing.
2. The conductive yarn of claim 1 , wherein said at least one conductive core wire or filament with corrosion or oxidation protection, said at least one short metal fiber yarns with corrosion or oxidation protection and said at least one rolled metal wire with corrosion or oxidation protection respectively are one selected from the group consisting of tin plating copper, gold plating copper, nickel plating copper, stainless steels, titanium, titanium alloys, nickel, silver, gold, nichrome, Ni—Cr—Mo—W alloys, tungsten, platinum, palladium, zirconium, zirconium alloys, tantalum, CuNi alloys, CuNiSi alloys, CuNiZn alloys, CuNiSn alloys, CuCr alloys, CuAg alloys, CuW alloys, HASTELLOY type alloys, NICKEL type alloys, MONEL type alloys, ICONEL type alloys, FERRALIUM type alloys, NITRONIC type alloys, and CARPENTER type alloys.
3. The conductive yarn of claim 1 , wherein the at least one rolled metal wire is also pressed in a pattern during being rolled by a pattern caved roller.
4. The conductive yarn of claim 1 , wherein the at least one non-conductive core filament and the at least one non-conductive short fiber yarn are made of a material selected from the group consisting of polyester, polyamide, polyacrylic, polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, poly-p-phenylenebenzobisoxazole (PBO), polyetherketone, carbon, and glass fiber.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW098209183U TWM371733U (en) | 2009-05-26 | 2009-05-26 | Conductive yarn capable of withstanding dying, finishing and washing |
TW098209183 | 2009-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100300060A1 true US20100300060A1 (en) | 2010-12-02 |
Family
ID=43218638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/787,378 Abandoned US20100300060A1 (en) | 2009-05-26 | 2010-05-25 | Conductive yarn capable of withstanding dyeing, finishing and washing |
Country Status (2)
Country | Link |
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US (1) | US20100300060A1 (en) |
TW (1) | TWM371733U (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110047957A1 (en) * | 2009-08-25 | 2011-03-03 | Chi-Hsueh Richard | Conductive yarn and cloth containing the same |
WO2014014290A1 (en) * | 2012-07-20 | 2014-01-23 | 주식회사 아모그린텍 | Conductive plied yarn having elasticity and method for manufacturing same |
EP2784199A1 (en) * | 2013-03-28 | 2014-10-01 | King's Metal Fiber Technologies Co., Ltd. | Woven electrical connection structure |
EP3511454A1 (en) * | 2018-01-12 | 2019-07-17 | Intelligence Textile Technology Co., Ltd. | Temperature control based memory textile and wearable object using the same |
EP3511453A1 (en) * | 2018-01-12 | 2019-07-17 | Intelligence Textile Technology Co., Ltd. | Signaling yarn and manufacturing method thereof |
EP3560418A1 (en) * | 2018-04-27 | 2019-10-30 | Intelligence Textile Technology Co., Ltd. | Smart garment |
CN110565399A (en) * | 2019-09-10 | 2019-12-13 | 义乌市大利线带厂 | printing and dyeing production process of dustproof yarn |
CN112030296A (en) * | 2020-07-28 | 2020-12-04 | 东华大学 | Flexible conductive yarn with carbon fiber fluff structure and preparation method thereof |
US11259590B2 (en) | 2018-03-20 | 2022-03-01 | Boiler Room Outdoors, Llc | Heated boot cover |
US11766900B2 (en) | 2016-12-13 | 2023-09-26 | Bridgestone Americas Tire Operations, Llc | Tire having a conductive cord |
Families Citing this family (1)
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US20230096613A1 (en) * | 2020-01-15 | 2023-03-30 | Kuraray Co., Ltd. | Metal-covered liquid crystal polyester multifilament |
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US20110047957A1 (en) * | 2009-08-25 | 2011-03-03 | Chi-Hsueh Richard | Conductive yarn and cloth containing the same |
WO2014014290A1 (en) * | 2012-07-20 | 2014-01-23 | 주식회사 아모그린텍 | Conductive plied yarn having elasticity and method for manufacturing same |
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EP3511453A1 (en) * | 2018-01-12 | 2019-07-17 | Intelligence Textile Technology Co., Ltd. | Signaling yarn and manufacturing method thereof |
US11259590B2 (en) | 2018-03-20 | 2022-03-01 | Boiler Room Outdoors, Llc | Heated boot cover |
US20220211139A1 (en) * | 2018-03-20 | 2022-07-07 | Boiler Room Outdoors, Llc | Heated boot cover |
EP3560418A1 (en) * | 2018-04-27 | 2019-10-30 | Intelligence Textile Technology Co., Ltd. | Smart garment |
CN110565399A (en) * | 2019-09-10 | 2019-12-13 | 义乌市大利线带厂 | printing and dyeing production process of dustproof yarn |
CN112030296A (en) * | 2020-07-28 | 2020-12-04 | 东华大学 | Flexible conductive yarn with carbon fiber fluff structure and preparation method thereof |
Also Published As
Publication number | Publication date |
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TWM371733U (en) | 2010-01-01 |
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