Paper machine fabric with release coating

Abstract

A paper machine fabric INCLUDES A fabric having a roll side and a paper side and a surface matrix on the paper side; and a chrome complex treatment in the surface matrix. The chrome complex treatment chemically reacts with the surface matrix and orients hydrophobic organic chains away from the surface of the fabric and thereby provides enhanced release property.

1 . A paper machine fabric, comprising:
 a fabric having a roll side and a paper side and a surface matrix on the paper side; and   a chrome complex treatment in the surface matrix.   
   
   
       2 . The fabric of  claim 1 , wherein the fabric comprises a fabric base, a roll side batt layer on the roll side of the fabric base, and a paper side batt layer on the paper side of the fabric base, wherein the surface matrix is attached to the paper side batt layer. 
   
   
       3 . The fabric of  claim 1 , wherein the chrome complex treatment is chemically bonded with the surface matrix. 
   
   
       4 . The fabric of  claim 1 , wherein the chrome complex comprises a polymerized chromium network chemically bonded with the surface matrix. 
   
   
       5 . The fabric of  claim 1 , wherein the fabric is at least one of a forming fabric, a press fabric, a dryer fabric, an impermeable press belt and a through-air dryer fabric. 
   
   
       6 . A method for providing release properties to a papermaking machine fabric, comprising the steps of:
 applying a solution of chemically reactive chrome complex to a surface of a papermaking machine fabric; and   drying and curing the fabric so that the complex reacts with the surface and produces a polymerized chromium network chemically bonded to the fabric.   
   
   
       7 . The method of  claim 6 , wherein the drying and curing step orients hydrophobic fatty chains from the complex so that the chains are oriented away from the fabric.