MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To improve blooming property and to obtain excellent transport durability by forming at least two layers of specified magnetic layers containing a ferromagnetic powder and a binder on a nonmagnetic supporting body. CONSTITUTION:At least two layers of magnetic layers containing a ferromagnetic powder and a binder are formed on a nonmagnetic supporting body. The lower magnetic layer comprising at least one layer contains branched fatty acid-modified silicone but no carbon black, while the upper magnetic layer comprising at least one layer contains branched fatty acid-modified silicone and carbon black having 100 - 250ml/100mg DBP oil absorption. Thereby, oozing of a lubricant can be enough controlled and the surface property of the magnetic layer is improved, thus resulting in excellent transport durability and improvement in blooming property.