Yarn and fabric

Abstract

A yarn containing a plurality of potential-generating filaments. The yarn is characterized in that the plurality of potential-generating filaments are constructed such that the yarn has a specific permittivity of 4.5 or less. In a specific configuration, the plurality of potential-generating filaments are constructed such that the distance between the potential-generating filaments is about 0 μm to about 10 μm. Also provided is a fabric that contains the yarn.

What is claimed is: 
     
         1 . A yarn comprising a plurality of potential-generating filaments constructed such that the yarn has a specific permittivity of 4.5 or less. 
     
     
         2 . The yarn according to  claim 1 , wherein the specific permittivity is 1.0 to 4.5. 
     
     
         3 . The yarn according to  claim 1 , wherein the plurality of potential-generating filaments are constructed such that the yarn has an impedance of 4.0×10 6  Ωm or more. 
     
     
         4 . The yarn according to  claim 3 , wherein the impedance is of 4.0×10 6  Ωm to 1.8×10 7  Ωm. 
     
     
         5 . The yarn according to  claim 1 , wherein the plurality of potential-generating filaments are constructed such that the yarn has a resistivity of 1.4×10 4  Ωm or more. 
     
     
         6 . The yarn according to  claim 5 , wherein the resistivity is 1.4×10 4  Ωm to 2.3×10 15  Ωm. 
     
     
         7 . The yarn according to  claim 1 , wherein the plurality of potential-generating filaments comprise a piezoelectric material. 
     
     
         8 . The yarn according to  claim 7 , wherein the piezoelectric material comprises poly-L-lactic acid (PLLA). 
     
     
         9 . The yarn according to  claim 8 , wherein the poly-L-lactic acid (PLLA) has a crystallinity of 35% or more. 
     
     
         10 . The yarn according to  claim 1 , further comprising a dielectric on at least a part of a periphery of at least some of the plurality of potential-generating filaments. 
     
     
         11 . The yarn according to  claim 10 , wherein the dielectric comprises an oil agent. 
     
     
         12 . The yarn according to  claim 10 , wherein the dielectric has conductivity. 
     
     
         13 . The yarn according to  claim 10 , wherein the dielectric comprises an antistatic agent. 
     
     
         14 . The yarn according to  claim 10 , wherein the dielectric comprises air. 
     
     
         15 . The yarn according to  claim 10 , wherein the dielectric comprises a polymer. 
     
     
         16 . The yarn according to  claim 15 , wherein the polymer comprises at least one selected from a group consisting of an ester-based polymer and an urethane-based polymer. 
     
     
         17 . The yarn according to  claim 10 , wherein the dielectric comprises a metal oxide. 
     
     
         18 . The yarn according to  claim 17 , wherein the metal oxide is a titanium oxide. 
     
     
         19 . The yarn according to  claim 1 , wherein the yarn is free of a surface treating agent. 
     
     
         20 . A fabric comprising the yarn according to  claim 1 .