MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To prevent blocking phenomenon or elongation and deformation owing to sticking to a guide roller, etc. by relieving curling and by a particularly excellent lubricating effect and to decrease fluctuation in output by providing a resin film layer contg. perfluoropolyether on the rear of a base body. CONSTITUTION:A resin film layer contg. perfluoropolyether is provided on the rear of a base body on the surface of which a thin ferromagnetic metallic film layer is provided by vapor deposition. The perfluoropolyether is used in a range of 0.01-3wt% by the total weight with the resin to be used in combination. Such back coating layer contg. the perfluoropolyether and resin is formed to a layer thickness ranging 0.1-2mu. The back coating layer is formed by forming the thin ferromagnetic metallic film layer by vapor deposition on the surface of the base body then dissolving one or two kinds or more of suitable resins together with perfluoropolyether in a suitable solvent, applying the soln. on the rear of the base body and drying the coating.