Magnetic recording medium

摘要

A magnetic recording medium comprising a magnetic layer on one surface of a non-magnetic base and a back coating on the other surface thereof which is not thicker than 2 mu and which contains inorganic particles and a binder is disclosed. The inorganic particles have an average size between 0.02 and 5 mu and a Mohs hardness of 2.5 to 9.0, and the surface of the back coating has a center line average roughness (Ra) of 0.024 or less and the surface of the magnetic layer has a center line average roughness (Ra) of 0.02.