GLASS PLATE-POLISHING DEVICE

摘要

The invention provides a glass plate-polishing device. The polishing pad (26) used in the polishing device (10) of the invention is made of a soft polyurethane resin. Type A hardness is 80 or higher and density is 0.7 g/cm3 or higher. Furthermore, Type A hardness of the polishing pad (26) is 90 or less and density is 0.9 g/cm3 or less. As a result, the polishing device (10) according to the invention is able to polish a glass plate (G) using a polishing pad (26) provided with both a flattening ability and a scratch-reducing ability. Therefore, processing time can be shortened by the time that would be expended in a precision grinding process using a second polishing pad provided with only a scratch-reducing ability. Consequently, the polishing device (10) is able to significantly improve glass plate (G) polishing efficiency compared to conventional polishing devices.