MAGNETIC RECORDING CARRIER
PURPOSE: To make it possible to assure a high-quality image and voice quality with respect to blocking and head wear at the time of tape/head contact by composing a magnetic recording carrier of a nonmagnetic carrier material and a magnetizable specific layer applied thereon. CONSTITUTION: This magn...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE: To make it possible to assure a high-quality image and voice quality with respect to blocking and head wear at the time of tape/head contact by composing a magnetic recording carrier of a nonmagnetic carrier material and a magnetizable specific layer applied thereon. CONSTITUTION: This magnetic recording carrier is composed of the nonmagnetic carrier material and the magnetizable material which is applied thereon and intrinsically consists of a magnetic material selected from a group consisting of iron oxide (III) reformed with cobalt and hexagonal ferrite finely dispersed into an org. binder and an inorg. supplying material. Acicular ferromagnetic chromium dioxide having intensity of a coercive magnetic field of over 24kA/m and a specific surface area of 20 to 60m /g is incorporated as the inorg. supplying material at a ratio of 10 to 20% of the magnetic material into the magnetized layer. As a result, the magnet layer is highly homogeneous and smooth and the blocking does not arise at the time of a recording carrier operation. The use of the finely dispersed iron oxide (III) reformed with the cobalt is made usable and the degradation in quality or layer homogeneity does not arise any more. |
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