Method of producing a magnetic recording media

Details Method of producing a magnetic recording media Method of producing a magnetic recording media

1992-08-21

1993-07-20

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427128, 427130, 427132, 427348, 427349, 427378, 4273831, 4273855, 427550, 427599, B05D 314

Patent

active

052291731

ABSTRACT:
A method of producing a coated magnetic recording medium includes a step of coating a nonmagnetic substrate with a magnetic paste layer mainly composed of acicular or granular magnetic particles and a resin binder, a spontaneous drying step for a specific period for inducing leveling of the coated surface and spontaneous volatilization of solvent without applying a magnetic field from outside after coating the magnetic paint, a first orientation step for dissipating the aggregated particles by a sudden change in magnetic field while inducing magnetic moment in magnetic particles by a strong DC magnetic field inside the coated surface and in a longitudinal direction of the medium for arraying the magnetic particles in the coated surface in the longitudinal direction, and a succeeding second orientation step for suppressing the magnetic repulsive force among the particles while arraying the magnetic particles by a DC magnetic field in the coated surface in the longitudinal direction.

REFERENCES:
patent: 2796359 (1957-06-01), Speed
patent: 3256112 (1966-06-01), Camras
patent: 4271782 (1981-06-01), Bate et al.
patent: 4518626 (1985-05-01), Kato et al.

Affiliated with

Also associated with

Rating

Method of producing a magnetic recording media does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing a magnetic recording media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a magnetic recording media will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1759071