Abrasive Sheet Including An Abrasive Layer

Abstract

An abrasive sheet includes a fabric base, a first adhesive layer applied to the fabric base, a netted web attached to the first adhesive layer and having a plurality of web openings therein, a second adhesive layer applied to the netted web, an abrasive layer having a plurality of abrasive particles spread on the second adhesive layer, and a third adhesive layer applied to the abrasive layer. A method of making the abrasive sheet is also disclosed.

1 . An abrasive sheet comprising:
 a fabric base;   a first adhesive layer applied to said fabric base;   a netted web attached to said first adhesive layer, and having a plurality of web openings therein;   a second adhesive layer applied to said netted web;   an abrasive layer having a plurality of abrasive particles spread on said second adhesive layer; and   a third adhesive layer applied to said abrasive layer;   wherein said web openings are filled with said abrasive particles.   
   
   
       2 . The abrasive sheet of  claim 1 , wherein said fabric base is formed in the shape of a quadrangle, circle, strip, polygon, or ring. 
   
   
       3 . The abrasive sheet of  claim 1 , wherein said netted web is a woven web. 
   
   
       4 . The abrasive sheet of  claim 1 , wherein said web openings are formed in the shape of a quadrangle, circle, oval, triangle or polygon. 
   
   
       5 . An abrasive sheet having high durability, which is made by a process that comprises:
 applying a first adhesive layer to a fabric sheet;   attaching a netted web to the first adhesive layer, the netted web having a plurality of web openings so as to create an uneven surface on the netted web;   applying a second adhesive layer to the uneven surface of the netted web, the second adhesive layer having an uneven surface substantially corresponding to the uneven surface of the netted web;   spreading on the second adhesive layer a plurality of abrasive particles so as to form an abrasive layer, the abrasive layer having an uneven surface substantially corresponding to the uneven surface of the second adhesive layer, the abrasive particles filling the web openings of the netted web; and   applying a third adhesive layer to the abrasive layer, the third adhesive layer having an uneven surface substantially corresponding to the uneven surface of the abrasive layer.