Method for preparing a magnetic recording medium

Details Method for preparing a magnetic recording medium Method for preparing a magnetic recording medium

1986-09-11

1987-04-28

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of inorganic material

427129, 427132, 427177, 427250, 427314, 4273981, 428900, G11B 564

Patent

active

046614214

ABSTRACT:
A method is described for preparing a magnetic recording medium by vapor-depositing a magnetic metal thin film on a polyester film, which comprises winding up a polyester film while subjecting the polyester film to a tension of from 0.1 to 2.0 kg/mm.sup.2, heating the resulting polyester film roll at 60.degree. C. to 80.degree. C. for from 10 to 100 hours, and vapor-depositing a magnetic thin film onto the polyester film while subjecting the polyester film to a tension of 0.5 kg/mm.sup.2 or more.

REFERENCES:
patent: 4446170 (1984-05-01), Watanabe
patent: 4474832 (1984-10-01), Shirahata et al.

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