Fire retardant fabric

Abstract

A fabric includes a yarn having a core and a sheath. The core is composed of spandex. The sheath includes a plurality of fire-retardant fibers which are spun around the core in a spiral manner. The fabric does not include any glass.

What is claimed is: 
     
         1 . A fabric, comprising,
 a yarn, wherein the yarn includes
 a core,
 wherein the core is composed of spandex, and 
 
 a sheath, 
 wherein the sheath includes a plurality of fire-retardant fibers, 
 wherein the plurality of fire-retardant fibers is spun around the core in a spiral manner. 
   
     
     
         2 . The fabric of  claim 1 , wherein the fire-retardant fibers are rayon fibers. 
     
     
         3 . The fabric of  claim 1 , wherein the fabric is a knit fabric. 
     
     
         4 . The fabric of  claim 1 , wherein the fabric is stretchable in a machine direction and in a cross direction. 
     
     
         5 . The fabric of  claim 4 , wherein the fabric is stretchable 5% to 75% in the machine direction. 
     
     
         6 . The fabric of  claim 4 , wherein the fabric is stretchable 5% to 75% in the cross direction. 
     
     
         7 . The fabric of  claim 1 , wherein a density of the core is 5 denier to 100 denier. 
     
     
         8 . The fabric of  claim 1 , wherein the yarn is 5% to 90% by weight of a total weight of the fabric. 
     
     
         9 . The fabric of  claim 1 , wherein the fabric does not include any glass. 
     
     
         10 . The fabric of  claim 1 , wherein the fabric conforms to standards under 16 CFR 1633 test standards. 
     
     
         11 . The fabric of  claim 1 , wherein the fabric is configured for use as a component of a mattress. 
     
     
         12 . A yarn, comprising:
 a core,
 wherein the core is composed of spandex, and 
   a sheath,
 wherein the sheath includes a plurality of fire-retardant fibers, 
 wherein the plurality of fire-retardant fibers is spun around the core in a spiral manner. 
   
     
     
         13 . The yarn of  claim 12 , wherein the fire-retardant fibers are rayon fibers. 
     
     
         14 . The yarn of  claim 12 , wherein a density of the core is 5 denier to 100 denier. 
     
     
         15 . The yarn of  claim 12 , wherein the yarn does not include any glass. 
     
     
         16 . A mattress, comprising:
 a foam core,   a cap fitted over the foam core,
 wherein the cap includes
 a fabric having a yarn, wherein the yarn includes
 a yarn core, 
  wherein the yarn core is composed of spandex, 
 and 
 a sheath, 
  wherein the sheath includes a plurality of fire-retardant fibers, 
  wherein the plurality of fire-retardant fibers is spun around the yarn core in a spiral manner. 
 
 
   
     
     
         17 . The mattress of  claim 16 , wherein the fire-retardant fibers are rayon fibers. 
     
     
         18 . The mattress of  claim 16 , wherein a density of the yarn core is 5 denier to 100 denier. 
     
     
         19 . The mattress of  claim 16 , wherein the yarn does not include any glass. 
     
     
         20 . The mattress of  claim 16 , wherein the mattress conforms to standards under 16 CFR 1633 test standards.