| 摘要 |
<p>A magnetic tape cartridge and its recorder/reproducer in which a magnetic head can be protected against damage by suppressing charging of a magnetic tape while lowering the resistance thereof and sustaining high electromagnetic conversion characteristics. A tape reel (7) is formed of a conductive material and the surface resistivity aC??Omega/sqaC?? at one end part of a magnetic tape (6) being connected to its reel hub (7B) is set not higher than 107. Since the magnetic tape (6) has a multilayer structure of a magnetic layer (23), a nonmagnetic conductor layer (22), a plastic film (21) and a back coat layer (24) formed from the magnetic face (6M) side, the exposed nonmagnetic conductor layer (22) is connected to a reel hub (7A) even when the surface resistivity of the magnetic layer (23) exceeds 107Omega/sq by removing the magnetic layer (23). Consequently, the resistance of the magnetic tape is lowered while sustaining high electromagnetic conversion characteristics.</p> |
