AROMATIC POLYAMIDE FILM FOR HIGH-DENSITY MAGNETIC RECORDING MEDIUM

摘要

An aromatic polyamide film for a high-density magnetic recording medium which has excellent electromagnetic conversion characteristics and few drop outs even when it is used as a base film for a deposited metal thin film magnetic recording medium and enables the production of a large-capacity magnetic recording medium. An aromatic polyamide film for a high-density magnetic recording medium which has surface flatness and excellent transferability, is thereby useful as a base film especially for a high-density magnetic recording medium and can satisfy contradictory requirements, that is, the prevention of a trouble such as projection of protrusions in a calendering step and winding easiness at the same time.