Magnetic fabric for molding applications

Abstract

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

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