Magnetic recording cartridge

Abstract

An object of the present invention is to provide a magnetic recording cartridge capable of correcting a width of a magnetic recording medium in a longitudinal direction thereof by adjusting running tension of a tape system or changing a winding direction even when stored in a high-temperature environment. A magnetic recording cartridge including: a magnetic recording medium having a base layer; and a reel, in which a loss modulus at 65° C. of the base layer is 0.40 GPa or less, the magnetic recording medium is wound around the reel, and when a variation in width is measured over an entire length of the magnetic recording medium after storage at 65° C. for 360 hours, a sign of variation in width Δout on an outer side of winding is different from a sign of variation in width Δin on an inner side of winding, and the variation in width is 0 ppm at any position of two portions sandwiching a center line of the entire length of the magnetic recording medium in a case where the entire length of the magnetic recording medium is divided into four portions by dividing into four equal parts.

Dependencies are inferred from the claim text.