JPS57189335A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57189335A
JPS57189335A JP56074656A JP7465681A JPS57189335A JP S57189335 A JPS57189335 A JP S57189335A JP 56074656 A JP56074656 A JP 56074656A JP 7465681 A JP7465681 A JP 7465681A JP S57189335 A JPS57189335 A JP S57189335A
Authority
JP
Japan
Prior art keywords
resin
silicone oil
thin film
reverse side
metallic thin
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
JP56074656A
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 JP56074656A priority Critical patent/JPS57189335A/en
Publication of JPS57189335A publication Critical patent/JPS57189335A/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 silicone oil 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 consising of at least one resin selected from an acrylonitrile-butadiene-styrene copolymer, polystyrene resin, acrylic resin, a vinyl chloride-vinyl acetate copolymer, polyvinyl acetal resin, and cellulose resin, and silicone oil such as dimethyl siloxane, etc. is provided.
JP56074656A 1981-05-18 1981-05-18 Magnetic recording medium Pending JPS57189335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074656A JPS57189335A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074656A JPS57189335A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57189335A true JPS57189335A (en) 1982-11-20

Family

ID=13553487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074656A Pending JPS57189335A (en) 1981-05-18 1981-05-18 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57189335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850378A (en) * 1994-11-10 1998-12-15 Matsushita Electric Industrial Co., Ltd. Method and apparatus for recording data on an optical disk and or groove

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850378A (en) * 1994-11-10 1998-12-15 Matsushita Electric Industrial Co., Ltd. Method and apparatus for recording data on an optical disk and or groove

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