| abstract |
Provided is a magnetic tape that can exhibit excellent electromagnetic conversion characteristics and can suppress the occurrence of dropout and edge damage. The centerline average surface roughness Ra measured on the magnetic layer side surface of the magnetic tape is 1.8 nm or less, and the friction coefficient measured on the base portion of the magnetic layer side surface is 0.35 or less. The centerline average surface roughness Ra measured on the backcoat layer side surface is 5.0 nm or less, the backcoat layer contains a fatty acid ester, and before and after vacuum heating of the magnetic tape, the backcoat layer side of the magnetic tape The full width at half maximum of the spacing distribution measured by optical interferometry on the surface is more than 0 nm and less than 10.0 nm, respectively, and the difference between the spacing after vacuum heating and the previous spacing is more than 0 nm and less than 8.0 nm. tape. Magnetic tape manufacturing method. [Selection figure] None |