Patent ID: 6798617
Filing Date: 2004-09-28
Classification: G11B

Abstract:
A cartridge type cleaning tape for a magnetic head system having a magnetoresistance effect head as a reproducing head, said cleaning tape comprising a nonmagnetic support, a cleaning layer containing a magnetic powder and a binder formed on one surface of said support, and a backcoating layer formed on the other surface of said support, whereinsaid cleaning tape has a total thickness of 3 to 9 &mgr;m, a product of a residual magnetic flux density and a thickness (Bru) of said cleaning layer is from 0.005 to 0.08 &mgr;Tm, said cleaning layer has a specific surface resistivity of 3Ã—103 to 5Ã—108 &OHgr;2/cm2 according to JIS C 6240-1970U, and said backcoating layer has a surface roughness Ra of 3 to 10 nm.