LAMINATED POLYESTER FILM FOR OPTICAL TAPE

摘要

PURPOSE:To provide the optical tape having excellent optical recording and reproducing characteristics. CONSTITUTION:This optical tape is constituted by laminating an active energy ray curing layer having >=H surface hardness on one surface of a polyester film contg. a light absorptive material. The center line average height (RaA) of the surface (surface A) of this active energy ray curing layer is <=0.05mum and the center line average height (RaB) of the exposed surface (surface B) on the opposite side is in a 0.005 to 0.3mum range.