SU675446A1 - Method of manufacturing magnetic record carrier - Google Patents

Description

one

The invention is directed to the mag- netic record area.

The known method of manufacturing a magnetic recording medium by forming the working layer of the surface with the polymer of the axis f 11,

Such a method provides for the manufacture of a magnetic recording medium relative to 1 but by simple means. However, the magnetic recording medium that is blended in accordance with it does not have the required resolution.

A known method of manufacturing a millennium record carrier is by forming a metal, layer by chemical reduction on the surface of the polymer base. or by evaporating in vacuum and holding the working layer electr. by depositing hard magnetic alloys, 1121. This method both smashes the manufacture of a magnetic recording sleeve with a relatively high resolution method. However, it does not provide their own magnetic recording media; possessing

high wear resistance due to bad aaghesia between the polymeric core and the metal layer. The purpose of the invention is to increase the wear- and stability and hardness of the recording.

This is achieved by the fact that before the formation of a metal interlayer, the surface of the polygon (Merne base is exposed to a stream of charged particles with its subsequent treatment with solutions of hydroxide-free metals.

The drawing shows a magnetic recording medium (a variant of churning), produced by the method.

The magnetic recording media contains working layer 1, oop | ns 1Y through the metal layer 2 with a polymer base 3, made, for example, from polyethylene terephthalate.

The magnetic recording media is made as follows.

The surface of the polymeric base 3 of the nozzle of a magnetic recording is subjected to the flow of heavy charged particles and a zhem is treated with solutions of alkali metal hydroxides with successive washing with running water and drying with a stream heated with an IT5T11N11M stream. Zatrm on the surface of the polymer core os 3, 5 form a metal layer 2 hy- «; evaporation in a vacuum or vacuum evaporation. Then, a working layer 1 elb1st x} is formed on the metal interlayer 2 with a layer of magnetically hard forces.

eg. ;: - ::. :: .Г

in the manufacture of magnetic recording media by means of the following method by the surface method. These polymeric substrates 3 have a rough surface attached, which provides a good 3JOO to the metal layer 2. A significant increase in the durability of the carrier is increased.

. The proposed increase method is ena-. The 20 stability of the magnetic recording medium is also provided by the relative | 1 body njSocTo to the process of its preparation. A picture genre can be used in the manufacture of magnetic recording media using video recorders.

Claims (2)

1. Maao Ya. A. Magnish ribbon .- M., Energie; 1968, p. ten. 2.Dolin B. B., et al. Development of a method for manufacturing and research of xajpek-Teritvk Me1 "all magnetic tapes. V. Sat. Bionpibcbi Magnetic Recording Ellas Trithess Sagalov - M.i Gbff 1973, Top, 2, p. 190-195.