Fabric and method of making the same

Abstract

A multi-ply fabric is disclosed. The fabric has a top yarn arranged to face an atmosphere and a bottom yarn connected to the top yarn, arranged to contact a surface of a user's body. The bottom yarn has a surface area to volume ratio (SA:V) that is greater than the SA:V of the top yarn. In some embodiments, the bottom yarn has a SA:V that is about 25% to about 50% greater than the SA:V of the top yarn.

1 . A fabric comprising:
 a top yarn arranged to face an atmosphere;   a bottom yarn connected to the top yarn by knitting and/or weaving, the bottom yarn being arranged to contact a surface of a user's body,   wherein the bottom yarn has a surface area to volume ratio (SA:V) that is about 25% to about 50% greater than the SA:V of the top yarn.   
     
     
         2 . The fabric as defined in  claim 1 , wherein the bottom yarn comprises a plurality of bottom fibers and the top yarn comprises a plurality of top fibers, and wherein an average diameter of the plurality of bottom fibers is less than an average diameter of the top fibers. 
     
     
         3 . The fabric as defined in  claim 2 , wherein each of the plurality of bottom fibers is separated by a bottom fiber gap, and each of the plurality of top fibers is separated by a top fiber gap, and wherein an average width of the bottom fiber gap is less than an average width of the top fiber gap. 
     
     
         4 . The fabric as defined in  claim 2 , wherein the number of bottom fibers in the bottom yarn is greater than the number of top fibers in the top yarn. 
     
     
         5 . The fabric as defined in  claim 1 , wherein the cross-sectional shape of the bottom yarn is non-spherical. 
     
     
         6 . The fabric as defined in  claim 1 , wherein the bottom yarn comprises a hollow body. 
     
     
         7 . The fabric as defined in  claim 1 , wherein the hydrophilicity of the bottom yarn is greater than the hydrophilicity of the top yarn. 
     
     
         8 . The fabric as defined in  claim 1 , wherein the difference in denier of the top fibers and the bottom fibers is less than about 15%. 
     
     
         9 . A fabric comprising:
 a top yarn arranged to face an atmosphere;   a bottom yarn connected to the top yarn by knitting and/or weaving, the bottom yarn being arranged to contact a surface of a user's body,   wherein the bottom yarn comprises a plurality of bottom fibers and the top yarn comprises a plurality of top fibers,   and wherein an average diameter of the plurality of bottom fibers is less than an average diameter of the top fibers.