Sony Group Corporation
MAGNETIC RECORDING TAPE AND MAGNETIC RECORDING TAPE CARTRIDGE

Abstract:

An object is to suppress or prevent a dimensional change of a magnetic recording tape. The present technology provides a magnetic recording tape having a layer structure including a magnetic layer, a base layer, and a back layer in this order, in which a reinforcing layer containing a metal or a metal oxide is disposed on either a surface of the base layer on the magnetic layer side or a surface of the base layer on the back layer side, and a black area in an image obtained by binarizing an optical microscope image of a rectangular region of 64 .mu.m.times.48 .mu.m of the reinforcing layer is 300 .mu.m.sup.2 or less. Furthermore, the present technology also provides a magnetic recording tape having a layer structure including a magnetic layer, a base layer, and a back layer in this order, in which a reinforcing layer containing a metal or a metal oxide is disposed on either a surface of the base layer on the magnetic layer side or a surface of the base layer on the back layer side, and the number of black regions in an image obtained by binarizing an optical microscope image of a rectangular region of 64 .mu.m.times.48 .mu.m of the reinforcing layer is 70 or less.