SHEET-FORM ABRASIVE WITH DIMPLES OR PERFORATIONS

摘要

A sheet-form abrasive material having a substrate (11), a binder (12) coated on a surface of the substrate, and abrasive grains bonded to the substrate by the binder, wherein the abrasive material has a plurality of dimples or perforations (14), each having a mutually independent shape that are placed over an entire abrasive surface, and an effective contact area to an object to be abraded of 50% to 96%.