MAGNETIC TAPE
First Claim
1. A magnetic tape comprising:
- a non-magnetic support;
a non-magnetic layer including non-magnetic powder and a binding agent on the non-magnetic support; and
a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic layer,wherein the total thickness of the non-magnetic layer and the magnetic layer is equal to or smaller than 0.60 μ
m,the magnetic layer includes an abrasive,a percentage of a plan view maximum area of the abrasive confirmed in a region having a size of 4.3 μ
m×
6.3 μ
m of the surface of the magnetic layer with respect to the total area of the region, obtained by plane observation performed by using a scanning electron microscope is equal to or greater than 0.02% and less than 0.06%, anda logarithmic decrement acquired by a pendulum viscoelasticity test performed regarding the surface of the magnetic layer is equal to or smaller than 0.050.
1 Assignment
0 Petitions
Accused Products
Abstract
The magnetic tape includes a non-magnetic support; a non-magnetic layer including non-magnetic powder and a binding agent on the non-magnetic support; and a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic layer, in which the total thickness of the non-magnetic layer and the magnetic layer is equal to or smaller than 0.60 μm, the magnetic layer includes an abrasive, a percentage of a plan view maximum area of the abrasive confirmed in a region having a size of 4.3 μm×6.3 μm of the surface of the magnetic layer with respect to the total area of the region, obtained by plane observation performed by using a scanning electron microscope is equal to or greater than 0.02% and less than 0.06%, and a logarithmic decrement acquired by a pendulum viscoelasticity test performed regarding the surface of the magnetic layer is equal to or smaller than 0.050.
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Citations
10 Claims
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1. A magnetic tape comprising:
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a non-magnetic support; a non-magnetic layer including non-magnetic powder and a binding agent on the non-magnetic support; and a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic layer, wherein the total thickness of the non-magnetic layer and the magnetic layer is equal to or smaller than 0.60 μ
m,the magnetic layer includes an abrasive, a percentage of a plan view maximum area of the abrasive confirmed in a region having a size of 4.3 μ
m×
6.3 μ
m of the surface of the magnetic layer with respect to the total area of the region, obtained by plane observation performed by using a scanning electron microscope is equal to or greater than 0.02% and less than 0.06%, anda logarithmic decrement acquired by a pendulum viscoelasticity test performed regarding the surface of the magnetic layer is equal to or smaller than 0.050. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification