Magnetic recording medium including aniline material, method for manufacturing same, and laminate for heat transfer
AssigneeDIC Corporation
InventorsAkira Fukasawa, Toshiaki Adachi, Daisuke Yano
Life of this patent
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Abstract
A problem to be solved by the present invention is to provide a magnetic recording medium having a jet-black magnetic stripe which is not tinged with red. The present invention is directed to a magnetic recording medium including: a magnetic recording layer on a substrate; and a protective layer (a) on the magnetic recording layer, wherein the protective layer (a) contains an aniline coloring material. The magnetic recording medium is advantageous in that the magnetic stripe is jet-black and has excellent design properties, and therefore can be widely used for credit cards, bank cards and the like.
Claims8
A magnetic recording medium comprising:
- a magnetic recording layer on a substrate;
- and
- a protective layer (a) on the magnetic recording layer, wherein
- the protective layer (a) contains an aniline coloring material, the aniline coloring material is contained in an amount in the range of from 20 to 40% by mass, based on the mass of the protective layer (a),
- the protective layer (a) comprises a protective layer (a1) and a protective layer (a2) as viewed from a side in contact with the magnetic recording layer, wherein the protective layer (a1) and the protective layer (a2) each contain the aniline coloring material,
- the aniline coloring material is aniline black, and
- the protective layer has a thickness of 0.4 μm or more to 2.5 μm or less.
A laminate for heat transfer comprising:
- a protective layer (a) on a temporary support;
- and
- a magnetic recording layer on the protective layer (a), wherein
- the protective layer (a) is a layer containing an aniline coloring material, the aniline coloring material is contained in an amount in the range of from 20 to 40% by mass, based on the mass of the protective layer (a),
- the protective layer (a) comprises a protective layer (a1) and a protective layer (a2) as viewed from a side in contact with the magnetic recording layer, wherein the protective layer (a1) and the protective layer (a2) each contain the aniline coloring material,
- the aniline coloring material is aniline black, and
- the protective layer has a thickness of 0.4 μm or more to 2.5 μm or less.
Dependencies are inferred from the claim text.