理美容鋏の刃先端の傷み測定

摘要

Then researching the cutting ability of a manual cutting device, it is necessary to pay attention to both the cutting ability of a brand new pair of scissors as well as the cutting ability after some period. However some reports on the cutting ability after some period only describe the changes in the cutting load. They do not describe the changes occurring at the edge. On the other hand, the blade edge becomes blunt and too much hair slips frequently while being cut or the edge has develops some nicks due to repeated cutting. This inferior cutting ability can be sensed by the users, therefore immediate re-grinding is necessary to maintain high cutting ability, Accordingly, it is necessary to measure the roughness and sharpness of the edge. In this report, a new simple method is proposed to measure the roughness and sharpness of the edge using a roughness measurement machine, the presume that our method for measuring the roughness of the edge in the direction of the length of blade is original.