Method for smoothing both magnetic coat layers of magnetic recording medium

Details

Inventors: Mikura, Chiho; Shibata, Fujio;
Assignee: TDK Electronics Co., Ltd. (Tokyo, JP)
Primary Examiner: Pianalto; Bernard D.
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Fisher, Spivak, McClelland & Maier

Both solid magnetic coat layers formed on a substrate of a magnetic recording medium by coating a magnetic varnish are simultaneously smoothed by passing the magnetic recording medium between one or more pairs of rigid rotary rolls which press both magnetic coat layers during their rotation.

DETAILED DESCRIPTION It is an object of the present invention to provide a system for smoothing simultaneously both solid magnetic layers of a magnetic medium without wearing the magnetic coat layer to cause calender processing damage, with high processing efficiency at high speed.
The foregoing and other objects of the present invention have been attained by providing a system for smoothing simultaneously both solid magnetic coat layers formed on a substrate of a magnetic recording medium which comprises passing the magnetic recording medium between one or more pairs of rigid rotary rolls which press each magnetic coat layer during their rotation.

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