JPS56105340A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS56105340A
JPS56105340A JP781180A JP781180A JPS56105340A JP S56105340 A JPS56105340 A JP S56105340A JP 781180 A JP781180 A JP 781180A JP 781180 A JP781180 A JP 781180A JP S56105340 A JPS56105340 A JP S56105340A
Authority
JP
Japan
Prior art keywords
magnetic
support material
coating film
bar
magnetic recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP781180A
Other languages
Japanese (ja)
Other versions
JPH0135409B2 (en
Inventor
Kazuo Takada
Shinji Umeki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP781180A priority Critical patent/JPS56105340A/en
Publication of JPS56105340A publication Critical patent/JPS56105340A/en
Publication of JPH0135409B2 publication Critical patent/JPH0135409B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To produce the magnetic recording medium superior in electromagnetic conversion characteristic, by installing the plate-form or bar-form material consisting of soft magnetic materials in the orientating magnetic field used conventionally to orientate magnetic particle components on the support material in a specific direction. CONSTITUTION:Plate-form or bar-form material 5 consisting of soft magnetic materials is arranged in the transverse direction of support material and in parallel with and closely to support material 3 in the gap or the part near this gap between permanent magnets or DC electromagnets 1 and 2, where the same polarities are opposite to each other, used for magnetic field orientation conventionally. The magnetic recording material consisting of support material 3 and undried magnetic coating film 4, which has been just applied to the surface of material 3, is caused to pass between magnets 1 and 2, and action of the magnetic field changing the direction is given to magnetic particles in coating film 4 when coating film 4 passes near bar-form material 5, and magnetic particles are orientated in the advance direction of support material 3. As a result, the orientation degree is improved by 20-30%, and the sensitivity is improved by 1dB or more.
JP781180A 1980-01-28 1980-01-28 Production of magnetic recording medium Granted JPS56105340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP781180A JPS56105340A (en) 1980-01-28 1980-01-28 Production of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP781180A JPS56105340A (en) 1980-01-28 1980-01-28 Production of magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS56105340A true JPS56105340A (en) 1981-08-21
JPH0135409B2 JPH0135409B2 (en) 1989-07-25

Family

ID=11675980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP781180A Granted JPS56105340A (en) 1980-01-28 1980-01-28 Production of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56105340A (en)

Also Published As

Publication number Publication date
JPH0135409B2 (en) 1989-07-25

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