Magnetic recording medium having a dimensional variation
摘要
說(shuō)明書(shū)
The inventors have studied a recording/reproducing device capable of keeping the width of an elongated magnetic recording medium constant or substantially constant by adjusting the tension in the longitudinal direction of the magnetic recording medium. According to the findings of the inventors, however, common magnetic recording media are small in the dimensional change amount in the width direction with respect to the tension change in the longitudinal direction as described above, and it is thus difficult for the recording/reproducing device mentioned above to keep the width of the magnetic recording medium constant or substantially constant.
Therefore, the inventors have intensively studied a magnetic recording medium capable of keeping the width of the magnetic recording medium constant or substantially constant by the recording/reproducing device mentioned above. As a result, the inventors have created, in contrast to the above-mentioned common magnetic recording media, a magnetic recording medium that has an increased dimensional change amount in the width direction with respect to the tension change in the longitudinal direction, specifically, a magnetic recording medium where the dimensional change amount Δw in the width direction with respect to the tension change in the longitudinal direction meets the requirement that 700 [ppm/N]≤Δw.
[Configuration of Magnetic Recording Medium]
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