JPS57189332A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57189332A
JPS57189332A JP56074653A JP7465381A JPS57189332A JP S57189332 A JPS57189332 A JP S57189332A JP 56074653 A JP56074653 A JP 56074653A JP 7465381 A JP7465381 A JP 7465381A JP S57189332 A JPS57189332 A JP S57189332A
Authority
JP
Japan
Prior art keywords
resin
perfluoroalkyl
deposition
vapor
thin film
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.)
Pending
Application number
JP56074653A
Other languages
Japanese (ja)
Inventor
Atsutaka Yamaguchi
Tsunemi Oiwa
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56074653A priority Critical patent/JPS57189332A/en
Publication of JPS57189332A publication Critical patent/JPS57189332A/en
Pending 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To get rid of generation of curl, and also to elevate running stability, by providing a back coating layer containing a fluorine surfactant in specific resin, on the reverse side of a base body on which a ferromagnetic metallic thin film layer has been formed by means of vapor-deposition. CONSTITUTION:On the reverse side of the base of a polyester film, etc. having on the surface a ferromagnetic metallic thin film layer formed by means of vapor-deposition of cobalt, etc., a layer consisting of at least one resin selected from an acrylonitrile-butadiene-styrene copolymer, polystyrene resin, polyacrylic resin, vinyl chloride-vinyl acetate copolymer, polyvinyl acetal resin, and cellulose resin, and a fluorine surfactant of perfluoroalkyl sulfonic acid, perfluoroalkyl carboxylic acid, perfluoroalkyl ethylene oxide additive, etc. is provided.
JP56074653A 1981-05-18 1981-05-18 Magnetic recording medium Pending JPS57189332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074653A JPS57189332A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074653A JPS57189332A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57189332A true JPS57189332A (en) 1982-11-20

Family

ID=13553398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074653A Pending JPS57189332A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57189332A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172158A (en) * 1983-03-18 1984-09-28 Hitachi Maxell Ltd Magnetic recording medium
JPS60111321A (en) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172158A (en) * 1983-03-18 1984-09-28 Hitachi Maxell Ltd Magnetic recording medium
JPH0574129B2 (en) * 1983-03-18 1993-10-15 Hitachi Maxell
JPS60111321A (en) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd Magnetic recording medium

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