Magnetic recording medium having a backcoat layer containing carbon black, an organic colorant residue and a silicone compound

摘要

A magnetic recording medium comprising a magnetic layer, a backing layer, and a support sandwiched between the magnetic layer and the backing layer. The backing layer is made form a coating composition comprising a filler, binder, and a silicone compound represented by the following formula (I): wherein groups A, B, and D each independently represent -CH3 or a group -X-Y-Z, in which X represents a C1-C11 alkylene or -(CH2)3NHCO-, Y represents a specific aliphatic group, alicyclic group, or an aromatic group, and Z represents -OH, m is an integer from 4 to about 150, and n is an integer from 1 to 6, the compound of formula (I) containing at least one -X-Y-Z group, with the ratio of the number of groups -X-Y-Z to m being from 1:3 to 1: about 30.