Velcro Abrasive Cloth

Abstract

The invention is a new Velcro-backed abrasive cloth. It is used in the coated abrasives industry. Its uniqueness is in the construction. It is formed by a cloth with Velcro on one side ( 1 ), after the cloth is dipped in resin, the side with no Velcro is coated with a layer of primer ( 2 ), and an abrasive layer ( 3 ) is then planted on top of the primer. On top of the abrasive layer, a multi-layer adhesive ( 4 ) is then planted. There is an anti clogging coating, an anti static coating or a combination of both on the multi-layer adhesive. This new Velcro backed abrasive cloth utilizes a napped fabric as the base material. The abrasives are directly planted onto the resin treated base material thus reducing the manufacturing steps and lowering costs. The unique construction of the base material extends the product lifetime and increases the sanding efficiency.

1 . A Velcro-backed abrasive fabric, comprising:
 a base material comprising a napped fabric with Velcro dipped in resin on one side;   a layer of primer on the other side of the base material with no Velcro;   an abrasive layer formed on top of the primer; and   a multi-layer adhesive.   
     
     
         2 . The Velcro-backed abrasive fabric of  claim 1 , wherein the multi-layer adhesive comprises anti-clogging coating, anti static coating or both coatings. 
     
     
         3 . The Velcro-backed abrasive fabric of  claim 1 , wherein the base material is a napped fabric or a flocking cloth. 
     
     
         4 . The Velcro-backed abrasive fabric of  claim 1 , wherein the layer of primer and the multi-layer adhesives are made from the following: phenolic resins, epoxy resins, urea-formaldehyde, polyvinyl alcohols, latexes or a combination thereof. 
     
     
         5 . The Velcro-backed abrasive fabric of  claim 1 , wherein the abrasive layer is formed by one of or a combination of the following: aluminum oxide, silicon carbide, calcined alumina, semi brittle alumina, diamond, ceramic-abrasives. 
     
     
         6 . The Velcro-backed abrasive fabric of  claim 5 , wherein the abrasive layer is formed by electrostatic abrasive planting or gravity abrasive planting.