Conductive yarn capable of withstanding dyeing, finishing and washing

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.

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.