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JPS5737720A - Magnetic recording medium and its manufacture - Google Patents

Magnetic recording medium and its manufacture

Info

Publication number
JPS5737720A
JPS5737720A JP11390480A JP11390480A JPS5737720A JP S5737720 A JPS5737720 A JP S5737720A JP 11390480 A JP11390480 A JP 11390480A JP 11390480 A JP11390480 A JP 11390480A JP S5737720 A JPS5737720 A JP S5737720A
Authority
JP
Japan
Prior art keywords
film
thin film
polyester
recording medium
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
JP11390480A
Other languages
Japanese (ja)
Inventor
Takashi Suzuki
Koichi Shinohara
Masaru Odagiri
Takashi Fujita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11390480A priority Critical patent/JPS5737720A/en
Priority to DE8181106264T priority patent/DE3175106D1/en
Priority to EP81106264A priority patent/EP0046269B1/en
Publication of JPS5737720A publication Critical patent/JPS5737720A/en
Priority to US06/657,056 priority patent/US4564549A/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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers

Landscapes

  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a thin metallic film type magnetic recording medium having magnetic-head touch, improved running properties and shelf life, etc., by using as a substrate a polyester drawn film having a specific surface state. CONSTITUTION:Both the sides of a polyester uniaxially drawn film are coated with a composite for a cross-linkable macromolecule, such as epoxy resin, and after a drying and hardening treatment, a redrawing treatment is carried out to obtain a polyester drawn film which holds on the surface a cross-linked macromolecular thin film having finely corrugated or granularly divided unevenness. On one uneven surface of the film, an alloy ferromagnetic thin film is formed and on the other, a lubricant containing macromolecular thin film consisting of a lubricant and a binder is provided.
JP11390480A 1980-08-18 1980-08-18 Magnetic recording medium and its manufacture Pending JPS5737720A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11390480A JPS5737720A (en) 1980-08-18 1980-08-18 Magnetic recording medium and its manufacture
DE8181106264T DE3175106D1 (en) 1980-08-18 1981-08-11 Magnetic recording media and process for fabricating the same
EP81106264A EP0046269B1 (en) 1980-08-18 1981-08-11 Magnetic recording media and process for fabricating the same
US06/657,056 US4564549A (en) 1980-08-18 1984-10-03 Magnetic recording media and process for fabricating the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11390480A JPS5737720A (en) 1980-08-18 1980-08-18 Magnetic recording medium and its manufacture

Publications (1)

Publication Number Publication Date
JPS5737720A true JPS5737720A (en) 1982-03-02

Family

ID=14624073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11390480A Pending JPS5737720A (en) 1980-08-18 1980-08-18 Magnetic recording medium and its manufacture

Country Status (1)

Country Link
JP (1) JPS5737720A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193149A (en) * 1982-05-06 1983-11-10 東レ株式会社 Composite film
JPS6161224A (en) * 1984-09-03 1986-03-29 Tdk Corp Magnetic recording medium
JPS6163922A (en) * 1984-09-04 1986-04-02 Tdk Corp Magnetic recording medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911305A (en) * 1972-05-31 1974-01-31
JPS506305A (en) * 1973-05-15 1975-01-23
JPS5041505A (en) * 1973-08-17 1975-04-16
JPS5092102A (en) * 1973-12-13 1975-07-23
JPS50147310A (en) * 1974-05-15 1975-11-26
JPS50147309A (en) * 1974-05-15 1975-11-26
JPS50159706A (en) * 1974-06-14 1975-12-24
JPS54123923A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911305A (en) * 1972-05-31 1974-01-31
JPS506305A (en) * 1973-05-15 1975-01-23
JPS5041505A (en) * 1973-08-17 1975-04-16
JPS5092102A (en) * 1973-12-13 1975-07-23
JPS50147310A (en) * 1974-05-15 1975-11-26
JPS50147309A (en) * 1974-05-15 1975-11-26
JPS50159706A (en) * 1974-06-14 1975-12-24
JPS54123923A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193149A (en) * 1982-05-06 1983-11-10 東レ株式会社 Composite film
JPH0241409B2 (en) * 1982-05-06 1990-09-17
JPS6161224A (en) * 1984-09-03 1986-03-29 Tdk Corp Magnetic recording medium
JPS6163922A (en) * 1984-09-04 1986-04-02 Tdk Corp Magnetic recording medium

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