JPS57133522A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57133522A
JPS57133522A JP56018299A JP1829981A JPS57133522A JP S57133522 A JPS57133522 A JP S57133522A JP 56018299 A JP56018299 A JP 56018299A JP 1829981 A JP1829981 A JP 1829981A JP S57133522 A JPS57133522 A JP S57133522A
Authority
JP
Japan
Prior art keywords
magnetic
base material
paper base
layer
adhesive layer
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
JP56018299A
Other languages
Japanese (ja)
Other versions
JPH0318251B2 (en
Inventor
Shoichi Sakamoto
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 JP56018299A priority Critical patent/JPS57133522A/en
Publication of JPS57133522A publication Critical patent/JPS57133522A/en
Publication of JPH0318251B2 publication Critical patent/JPH0318251B2/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
    • G11B5/62—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
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates

Landscapes

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

Abstract

PURPOSE:To increase the adhesive strength between a paper base material and a magnetic layer, by using a mateial composed mainly of a copolymer of vinyl acetate and maleic ester for an adhesive layer which is used to provide a magnetic layer on the paper base material. CONSTITUTION:A transferable magnetic sheet having an adhesive layer containing mainly vinyl acetate-maleic ester copolymer (wt. ratio of vinyl acetate to maleic ester is preferably 7/3-3/7) is pressed with heat onto a paper base material for transfer. Otherwise a transferable magnetic sheet composed of a base film, a mold releasing layer and a magnetic layer formed on the above-mentioned adhesive layer is pressed with heat onto the paper base material. Otherwise the said adhesive layer is formed on the paper base material, and the magnetic layer is formed on the adhesive layer without applying a transfer method. In such a way, a magnetic recording medium like a magnetic card, etc. is obtained.
JP56018299A 1981-02-10 1981-02-10 Magnetic recording medium Granted JPS57133522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56018299A JPS57133522A (en) 1981-02-10 1981-02-10 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56018299A JPS57133522A (en) 1981-02-10 1981-02-10 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57133522A true JPS57133522A (en) 1982-08-18
JPH0318251B2 JPH0318251B2 (en) 1991-03-12

Family

ID=11967727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56018299A Granted JPS57133522A (en) 1981-02-10 1981-02-10 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57133522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051054A (en) * 2012-09-07 2014-03-20 Toshiba Corp Intermediate transcription medium and forging and falsifying prevention medium manufacturing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110505A (en) * 1984-06-13 1986-01-18 レブロン　インコーポレーテツド Permanent waving method and composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110505A (en) * 1984-06-13 1986-01-18 レブロン　インコーポレーテツド Permanent waving method and composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051054A (en) * 2012-09-07 2014-03-20 Toshiba Corp Intermediate transcription medium and forging and falsifying prevention medium manufacturing equipment

Also Published As

Publication number Publication date
JPH0318251B2 (en) 1991-03-12

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