Polishing sheet and polishing tool

摘要

A polishing sheet comprising a plurality of convex portions which protrudes from a sheet surface and includes an upper surface which is in parallel to the sheet surface is disclosed. A plurality of abrasive grains made by a granular porous body in which a number of primary particles are partially bonded to each other and include a void in between is arranged at least on the upper surface of the convex portion.

主权项

1. A polishing sheet comprising:
a sheet surface including a plurality of convex portions protruding therefrom and including an upper surface which is in parallel to the sheet surface; and a plurality of abrasive grains, each abrasive grain having a granular porous body in which plural primary particles are partially bonded to each other and include a void therebetween, wherein the abrasive grains, each constituted by the primary particles partially bonded to each other, are arranged on the upper surface and side surface of the convex portion around the upper surface side of the convex portion of the sheet surface.