| abstract |
A magnetic recording medium comprising:n (a) a non-magnetic base film; and (b) a magnetic recording layer comprising a bindernresin and black magnetic acicular compositenparticles which have an average particlendiameter of 0.051 to 0.72 µm and whichncomprise:n magnetic acicular particles, a coating on the surface of said magneticnacicular particles, comprising at least onenorganosilicon compound selected from:n (1) organosilane compounds obtainable by drying ornheat-treating alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainablenby drying or heat-treating fluoroalkylsilanencompounds, and from 0.5 to 10 parts by weight, per 100 partsnby weight of said magnetic acicular particles,nof carbon black particles which have a particlensize of 0.002 to 0.05 µm and which are adherednto said coating. |