JPS57205821A - Magnetic recording tape - Google Patents

Magnetic recording tape

Info

Publication number
JPS57205821A
JPS57205821A JP56089987A JP8998781A JPS57205821A JP S57205821 A JPS57205821 A JP S57205821A JP 56089987 A JP56089987 A JP 56089987A JP 8998781 A JP8998781 A JP 8998781A JP S57205821 A JPS57205821 A JP S57205821A
Authority
JP
Japan
Prior art keywords
alloy
metallic
magnetic
layer
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.)
Pending
Application number
JP56089987A
Other languages
Japanese (ja)
Inventor
Gakuo Sada
Kenzaburo Iijima
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP56089987A priority Critical patent/JPS57205821A/en
Publication of JPS57205821A publication Critical patent/JPS57205821A/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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70621—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Co metal or alloys

Abstract

PURPOSE:To improve corrosion resistance without increasing an effective gap, by forming a corrosion resistant magnetic metallic layer on a metallic magnetic recording layer. CONSTITUTION:On a tape base material of a plastic film, etc., a coating film obtained by applying a thin film of a magnetic metal such as a Co-Ni alloy, a Co-Ni-Fe alloy, an Fe-Co-Cr alloy, etc., or magnetic metallic powder such as Fe powder, etc. together with a binder is formed as a metallic magnetic recording layer. Subsequently, on said layer, a magnetic metallic layer is formed which is excellent in corrosion resistance, has a residual density almost as same as a metallic magnetic substance of the metallic magnetic recording layer, and has an antimagnetic force as same as or less than said layer, and also is small in magnetic permeability, such as Ni, a Pt-Co alloy, a Pt-Fe alloy, an Au-Fe alloy, an Au-Fe-Co alloy, etc. In this way, a metallic magnetic tape having corrosion resistance and weather resistance is obtained without increasing an effective gap.
JP56089987A 1981-06-11 1981-06-11 Magnetic recording tape Pending JPS57205821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56089987A JPS57205821A (en) 1981-06-11 1981-06-11 Magnetic recording tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56089987A JPS57205821A (en) 1981-06-11 1981-06-11 Magnetic recording tape

Publications (1)

Publication Number Publication Date
JPS57205821A true JPS57205821A (en) 1982-12-17

Family

ID=13985988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56089987A Pending JPS57205821A (en) 1981-06-11 1981-06-11 Magnetic recording tape

Country Status (1)

Country Link
JP (1) JPS57205821A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652499A (en) * 1986-04-29 1987-03-24 International Business Machines Magnetic recording medium with a chromium alloy underlayer and a cobalt-based magnetic layer
US4654276A (en) * 1986-04-29 1987-03-31 International Business Machines Corporation Magnetic recording medium with an underlayer and a cobalt-based magnetic layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652499A (en) * 1986-04-29 1987-03-24 International Business Machines Magnetic recording medium with a chromium alloy underlayer and a cobalt-based magnetic layer
US4654276A (en) * 1986-04-29 1987-03-31 International Business Machines Corporation Magnetic recording medium with an underlayer and a cobalt-based magnetic layer

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