Magnetic fabric for molding applications

Abstract

The invention relates to a magnetic scrim containing a scrim which contains a plurality of yarns and a magnetic coating covering at least a portion of the yarns of the scrim. The magnetic coating contains magnetic elements and a binder, where the magnetic coating is at least about 40% by weight magnetic elements, and where the magnetic coating has an areal density of at least twice the areal density of the scrim.

What is claimed is: 
     
         1 . A magnetic scrim comprising:
 a scrim comprising a plurality of yarns;   a magnetic coating covering at least a portion of the yarns of the scrim, wherein the magnetic coating comprises magnetic elements and a binder, wherein the magnetic coating is at least about 40% by weight magnetic elements, and wherein the magnetic coating has an areal density of at least twice the areal density of the scrim.   
     
     
         2 . The magnetic scrim of  claim 1 , wherein the scrim is a laid scrim. 
     
     
         3 . The magnetic scrim of  claim 1 , wherein the scrim is a woven scrim. 
     
     
         4 . The magnetic scrim of  claim 1 , wherein the scrim is a knit scrim. 
     
     
         5 . The magnetic scrim of  claim 4 , wherein the scrim is a weft inserted warp knit scrim. 
     
     
         6 . The magnetic scrim of  claim 1 , wherein the yarns of the scrim comprise polyester yarns. 
     
     
         7 . The magnetic scrim of  claim 6 , wherein at least a portion of the polyester yarns are texturized polyester yarns. 
     
     
         8 . The magnetic scrim of  claim 1 , wherein the scrim comprises a plurality of yarns in a warp direction and a plurality of yarns in a weft direction defined to be approximately perpendicular to the warp direction. 
     
     
         9 . The magnetic scrim of  claim 8 , wherein at least a portion of the plurality of yarns in a weft direction are polyester texturized polyester yarns. 
     
     
         10 . The magnetic scrim of  claim 8 , further comprises a plurality of stitching yarns in the warp direction. 
     
     
         11 . The magnetic scrim of  claim 1 , wherein the magnetic elements comprise a material selected from the group consisting of iron, nickel, neodymium, and cobalt. 
     
     
         12 . The magnetic scrim of  claim 1 , wherein the magnetic coating has an areal density of at least 2.5 times the areal density of the scrim. 
     
     
         13 . The magnetic scrim of  claim 1 , wherein the magnetic coating is at least about 70% by weight magnetic elements. 
     
     
         14 . The magnetic scrim of  claim 1 , wherein the magnetic coating is applied onto the scrim from an aqueous mixture. 
     
     
         15 . The magnetic scrim of  claim 14 , wherein magnetic coating is applied by coating. 
     
     
         16 . The magnetic scrim of  claim 14 , wherein magnetic coating is applied by padding. 
     
     
         17 . The magnetic scrim of  claim 1 , wherein the magnetic scrim further comprises a layer of PVC between the yarns and the magnetic coating. 
     
     
         18 . The magnetic scrim of  claim 1 , wherein the magnetic coating is in a pattern. 
     
     
         19 . The magnetic scrim of  claim 1 , wherein the magnetic elements have an average particle size range of between about 50 nm to 50 microns.