JPS57154644A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57154644A
JPS57154644A JP56041315A JP4131581A JPS57154644A JP S57154644 A JPS57154644 A JP S57154644A JP 56041315 A JP56041315 A JP 56041315A JP 4131581 A JP4131581 A JP 4131581A JP S57154644 A JPS57154644 A JP S57154644A
Authority
JP
Japan
Prior art keywords
recording medium
resin
fine powder
magnetic recording
base element
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
JP56041315A
Other languages
Japanese (ja)
Inventor
Akito Sakamoto
Kunio Mizushima
Taku Yamase
Masaya Funabashi
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 JP56041315A priority Critical patent/JPS57154644A/en
Publication of JPS57154644A publication Critical patent/JPS57154644A/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
    • G11B5/7356—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 comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2

Landscapes

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

Abstract

PURPOSE:To produce an endless magnetic tape recording medium with superior stability by forming a lubricant layer containing fine powder of fluororesin and perfluoroalkylphosphoric ester on the back of a base element. CONSTITUTION:A lubricant layer obtained by dispersing the fine powder of lubricating fluorine resin such as resin of tetrafluoroethylene, hexafluoropropylene or trichlorofluoroethylene, and perfluoroalkylphosphoric ester with surface active, lubricating and electric conductive properties into a binder of rubber-like resin or the like is formed on the reversed side of a base element which has a magnetic layer on the front side.
JP56041315A 1981-03-20 1981-03-20 Magnetic recording medium Pending JPS57154644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041315A JPS57154644A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041315A JPS57154644A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57154644A true JPS57154644A (en) 1982-09-24

Family

ID=12605071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041315A Pending JPS57154644A (en) 1981-03-20 1981-03-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57154644A (en)

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