| 摘要 |
PROBLEM TO BE SOLVED: To provide a polishing film which requires no polishing agent, and can manufacture an optical fiber connector part excellent in optical, characteristics. SOLUTION: A first polishing layer 2 is formed over a supporting body 1 such as a plastic film and the like, in which a polishing agent composed of silica perticulates is dispersed over water insoluble resin, and a second polishing layer 3 is formed over the second polishing layer, in which a polishing agent composed of silica perticulates that are smaller in grain size than the polishing agent used by the first polishing layer, is dispersed over water soluble resin. This polishing film 10 is suitably used as a final finishing film for polishing an optical connector part, enables both ferrules and quartz fibers to be simultaneously polished, and thereby to be formed into a mirror surface, can prevent the occurrence of the difference in level between each ferrule and each quartz fiber, and also prevents a work deterioration layer different in index of refraction from being formed up over the surface of quartz fibers. |
