Process for producing a magnetic recording material

Details Process for producing a magnetic recording material Process for producing a magnetic recording material

1991-12-23

1992-10-27

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427128, 428695, 428900, B05D 512

Patent

active

051588021

ABSTRACT:
A process for producing a magnetic recording medium is described in which a hardening agent and a lubricant are added to a magnetic coating solution prior to coating thereof on a non-magnetic support. It has been found that improved magnetic recording properties and consistent product characteristics are obtained if the addition of the hardening agent and lubricant to the magnetic coating solution is carried out within about 240 minutes of surface calendering treatment of the magnetic recording medium.

REFERENCES:
patent: 4391851 (1983-07-01), Yamada et al.
patent: 4711819 (1987-12-01), Hanai et al.

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