Heating yarn and woven or knitted fabric using this heating yarn

Abstract

A heating yarn includes an insulating yarn and a conductive yarn that is wound around the insulating yarn. The conductive yarn has an insulating core yarn and a plated layer (such as a copper plated layer) formed on a peripheral surface of the core yarn, and the core yarn is a high elasticity yarn (such as an aramid fiber) with an initial tensile resistance of 4.9 GPa or higher. Moreover, the heating yarn is woven in or knitted into the woven or knitted fabric as part of the constituent yarn.

1 . A heating yarn comprising:
 an insulating yarn; and   a conductive yarn that is wound around the insulating yarn,   wherein the conductive yarn has an insulating core yarn and a plated layer formed on a peripheral surface of the core yarn, and the core yarn is a high elasticity yarn with an initial tensile resistance of 4.9 GPa or higher.   
     
     
         2 . The heating yarn according to  claim 1 , wherein the core yarn is a high elasticity yarn with an initial tensile resistance of 4.9 to 600 GPa, inclusive. 
     
     
         3 . The heating yarn according to  claim 1 , wherein the core yarn is a high elasticity yarn with an initial tensile resistance of 54 to 280 GPa, inclusive. 
     
     
         4 . The heating yarn according to  claim 1 , wherein a resin coating layer is formed on a surface of the plated layer. 
     
     
         5 . The heating yarn according to  claim 1 , wherein the plated layer is a copper plated layer, and a tin plated layer or a nickel plated layer is formed on a surface of the copper plated layer. 
     
     
         6 . A woven or knitted fabric into which the heating yarn according to  claim 1  is woven or knitted.