OPTICAL TAPE

摘要

PURPOSE:To provide an optical tape excellent in recording property. CONSTITUTION:The optical tape has <=0.005mum center line average height of one side surface (A) of a film (RaA) and has a range of 0.005-0.500mum center line average height of another surface (B) of the film (RaB). And a recording layer is provided on the side of surface A of the polyester film having <=1.0 coefficient of a dynamic friction between the surface A and the surface B.