Abrasive roll and method for manufacturing abrasive roller

Abstract

Object: Provided are an abrasive roll capable of easily improving abrasiveness and a method for manufacturing an abrasive roll. Solution: An abrasive roll (1) includes a core member (12) extending in the axial direction and an abrasive part (13) including a sheet (14) member of non-woven fabric wound a plurality of times around the core member (13), wherein a plurality of perforations (16) penetrating in the thickness direction of the sheet member (14) are formed in the sheet member (14).

1 . An abrasive roll comprising:
 a core member extending in an axial direction; and   an abrasive part including a sheet member of non-woven fabric wound a plurality of times around the core member, wherein   a plurality of perforations penetrating in a thickness direction of the sheet member are formed in the sheet member.   
     
     
         2 . The abrasive roll according to  claim 1 , wherein
 the sheet member is segmented into a plurality of regions extending in a first direction and arranged in a second direction;   a boundary extending in the first direction is formed between a pair of the regions;   a perforation extending in the first direction is formed at the boundary; and   a pair of the regions adjoining in the second direction are mutually connected by a connecting part formed on an end side of the perforation in the first direction.   
     
     
         3 . The abrasive roll according to  claim 2 , wherein
 a plurality of the perforations are formed at the boundary, the perforations being disposed separated from each other in the first direction;   a pair of the regions adjoining in the second direction are mutually connected by the connecting part formed between the perforations; and   the connecting part of the boundary formed on one side in the second direction and the connecting part of the boundary formed on the other side, relative to the region, are disposed in different positions in the first direction.   
     
     
         4 . The abrasive roll according to  claim 2 , wherein
 the first direction is the axial direction and   the second direction is a winding direction of the sheet member.   
     
     
         5 . The abrasive roll according to  claim 2 , wherein
 the first direction is a winding direction of the sheet member and   the second direction is the axial direction.   
     
     
         6 . A method for manufacturing an abrasive roll, the method comprising preparing a non-woven fabric sheet member in which a plurality of perforations penetrating in a thickness direction are formed;
 winding the sheet member a plurality of times around a core member extending in an axial direction; and   adhering the wound sheet member to the core member.