Flexible grinding product and method of producing the same

Abstract

The present invention relates to a flexible grinding product and a method of producing the same. Such a grinding product comprises a flexible underlay ( 1 ) which consists of two layers laminated to each other. These comprise a lower base layer ( 2 ) and an upper layer ( 3 ), a cavity layer. The underlay includes a top surface ( 5 ) having at least one adhesive layer ( 6 ) arranged thereto after lamination and a layer of grinding agent ( 7 ) applied by means of the adhesive layer. The grinding product is characterized in that the layer that is coated with grinding agent includes holes which form cavities ( 4 ), whereby the cavities provide space for grinding dust and grinding residues and facilitate their removal from the surface being ground.

1 - 14 . (canceled) 
   
   
       15 . A method of producing a flexible grinding product, which comprises a flexible underlay, at least one adhesive layer applied on one side of the underlay and a layer of grinding agent applied by means of the adhesive layer,
 the lower base layer and the porous upper layer being laminated to each other to form an underlay, after which   a top surface of the upper layer is coated with grinding agent, whereby cavities are formed in the top surface to provide space for grinding dust and grinding residues and to facilitate their removal from the surface being ground.   
   
   
       16 . A method according to  claim 15 , wherein the upper layer coated with grinding agent in the underlay forms a cavity layer. 
   
   
       17 . A method according to  claim 15 , wherein the porosity of the cavity layer is achieved by perforation. 
   
   
       18 . A method according to  claim 15 , wherein the cavity layer is made of a naturally porous material. 
   
   
       19 . A method according to  claim 15 , wherein the lower surface of the underlay is provided with a fastening layer. 
   
   
       20 . A method according to  15 , wherein the base layer of the underlay is perforated before it is laminated to the upper layer. 
   
   
       21 . A method according to  claim 15 , wherein the base layer of the underlay is formed of a naturally porous material. 
   
   
       22 . A method according to  claim 19 , wherein the porous layers are arranged to each other in lamination so as to form holes that go through the whole underlay.