Method of preparing a magnetic recording medium with a calenderi

Details Method of preparing a magnetic recording medium with a calenderi Method of preparing a magnetic recording medium with a calenderi

1983-05-04

1985-02-12

Pianalto, Bernard D.

Coating processes

Magnetic base or coating

Magnetic coating

427128, H01F 1002

Patent

active

044991215

ABSTRACT:
A method for producing a magnetic recording medium is disclosed. The method involves providing a ferromagnetic coating layer on a non-magnetic support base to produce a coated base. The coated base is then subjected to an atmosphere having a RH of 60% or more, prior to or during a subsequent calendering treatment. The recording medium produced has excellent surface smoothness and improved electromagnetic properties. The method is advantageous in that a substantially long period of time may pass between the coating of the ferromagnetic layer on the support and the calendering treatment without having undesirable effects on the magnetic recording medium produced.

REFERENCES:
patent: 3398011 (1968-08-01), Neirotte et al.

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