Heat resistant separation fabric

Abstract

The heat resistant separation fabric for use as tool cover in glass processing comprises heat resistant yarns ( 100 ). The heat resistant yarns comprise a core ( 110 ) and at least one wrap yarn ( 123, 125 ). The core is a core yarn. The core yarn is a multifilament glass yarn. The at least one wrap yarns ( 123, 125 ) comprises stainless steel fibers. The core yarn is present in the heat resistant yarn without crimp. The at least one wrap yarn is wrapped around the core yarn.

1 . Heat resistant separation fabric for use as tool cover in glass processing;
 wherein the heat resistant separation fabric comprises heat resistant yarns;   wherein the heat resistant yarns comprise
 a core; 
   wherein the core is a core yarn,   wherein the core yarn is a multifilament glass yarn;   wherein the core yarn is present in the heat resistant yarn without crimp; and
 at least one wrap yarn, 
   wherein the at least one wrap yarn comprises stainless steel fibers;   and wherein the at least one wrap yarn is wrapped around the core yarn.   
     
     
         2 . Heat resistant separation fabric as in  claim 1 ,
 wherein the heat resistant yarn comprises a first set of at least one wrap yarn,   wherein the wrap yarn or wrap yarns of the first set of at least one wrap yarn are wrapped in Z-direction around the core yarn; and   wherein the heat resistant yarn comprises a second set of at least one wrap yarn,   wherein the wrap yarn or wrap yarns of the second set of at least one wrap yarn are wrapped in S-direction around the core yarn.   
     
     
         3 . Heat resistant separation fabric as in  claim 2 , wherein the wrap yarn or warp yarns of the first set of at least one wrap yarn; and the wrap yarn or wrap yarns of the second set of at least one wrap yarn are wrapped around the core yarn with the same number of turns per meter length of the heat resistant yarn. 
     
     
         4 . Heat resistant fabric as in  claim 1 , wherein the heat resistant fabric is a woven fabric. 
     
     
         5 . Heat resistant fabric as in  claim 1 , wherein the heat resistant fabric is a knitted fabric. 
     
     
         6 . Heat resistant fabric as in  claim 1 , wherein the wrap yarn is a twisted yarn, comprising or consisting out of fibers of discrete length. 
     
     
         7 . Heat resistant fabric as in  claim 1 , wherein the wrap yarn is a plied yarn. 
     
     
         8 . Method of processing a glass product;
 wherein a tool is provided to process a glass product;   wherein the tool is covered by a heat resistant separation fabric;   wherein the heat resistant separation fabric comprises heat resistant yarns;   wherein the heat resistant yarns comprise
 a core; 
   wherein the core is a core yarn,   wherein the core yarn is a multifilament glass yarn;   wherein the core yarn is present in the heat resistant yarn without crimp; and
 at least one wrap yarn, 
   wherein the at least one wrap yarn comprises stainless steel fibers;   and wherein the at least one wrap yarn is wrapped around the core yarn;   wherein the heat resistant separation fabric is provided to separate the tool from the glass product being processed such that the glass product does not contact the tool directly.   
     
     
         9 . Method as in  claim 8 , wherein the glass product is mirror glass. 
     
     
         10 . Method as in  claim 8 , wherein the glass product is automotive glass.