| abstract |
(57) [Abstract] [Purpose] To provide a magnetic recording medium having high recording density with excellent practical characteristics such as running property, durability, storability, etc. even with digital and analog, and good electromagnetic conversion characteristics. In a magnetic recording medium in which a ferromagnetic metal powder and a magnetic layer mainly composed of a binder resin are formed on at least one surface of a non-magnetic support, the ferromagnetic metal powder is Al, Si, Y, It contains at least one element selected from B, Nd, La, Mn, Ti and Sn, has an average major axis of 0.05 to 0.10 μm, and has a pH of 8. 5 to 10.0 and an isoelectric point of 7.0 to 9.5, using an acidic polar group-containing resin as the binder resin, Further, the magnetic recording medium is characterized in that the magnetic layer contains fatty acid as a lubricant. |