AROMATISCHE POLYAMIDFOLIE UND AUS DIESER FOLIE HERGESTELLTER MAGNETISCHER AUFNAHMETRÄGER

摘要

The present invention provides an aromatic polyamide film wherein a heat-shrinkage in the TD direction at 220 DEG C is of 0.2 to 8% under a load of 80 kg/cm<2>, and wherein an average ten-point roughness Rz of the surface that is opposite to a surface for providing a magnetic layer is 10 to 200 nm; and a magnetic recording medium, wherein a magnetic layer is provided on a surface of the film. Since the heat-shrinkage at a high temperature and the properties of the surface of the film are within the confines of the present invention, there is obtained a magnetic recording medium having a high degree of flatness with small curls, and a high recording density by using the film.