| 摘要 |
A magnetic recording medium incorporating a backcoat layer which exhibits excellent movement characteristics, the magnetic recording medium having a non-magnetic support member; a magnetic layer formed on either surface of the non-magnetic support member and mainly composed of magnetic powder and a binder; and a backcoat layer formed on another surface of the non-magnetic support member and structured such that non-magnetic powder is dispersed in a binder, wherein the backcoat layer contains the non-magnetic powder composed of carbon black and inorganic powder having Moh's hardness of 6 to 9 at a ratio of 90:10 to 85:15, the contained binder is made of phenoxy resin, polyurethane resin and nitrocellulose, the contained carbon black consists of carbon black having an average primary particle size of 25 nm to 55 nm and carbon black having an average primary particle size of 280 nm to 350 nm and the contained inorganic powder consists of inorganic powder having an average primary particle size of 260 nm to 360 nm and inorganic powder having an average primary particle size of 390 nm to 490 nm.
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