Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Weight per unit area specified
Patent
1991-07-01
1995-05-02
Nakarani, D. S.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Weight per unit area specified
428694B, 428900, 503200, 503208, 503213, 503226, G11B 566, B32B 2708
Patent
active
054117984
ABSTRACT:
The present invention provides a magnetic recording sheet which is excellent in its production operability, magnetic recording characteristics and visible information recording characteristics. The magnetic recording sheet comprises a substrate, a magnetic recording layer which comprises a binder having a gel content of 5-75% and ferromagnetic powders and is provided on one side of the substrate, and a visible information recording layer which comprises at least one binder selected from the group consisting of a synthetic binder and a natural binder is and provided on another side of the substrate. The present invention further provides a heat-sensitive magnetic recording sheet which is excellent in whiteness of the heat-sensitive recording layer and image stability and which comprises a substrate, a magnetic recording layer comprising a binder and ferromagnetic powders and provided on one side of the substrate, and a heat-sensitive recording layer comprising an aromatic isocyanate compound, an imino compound and a binder and containing a heat meltable substance having a melting point of 60.degree.-180.degree. C. and provided on another side of the substrate.
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Funae Haruyoshi
Hiraishi Shigetoshi
Le H. Thi
Mitsubishi Paper Mills Limited
Nakarani D. S.
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