JPS5792434A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS5792434A
JPS5792434A JP16847180A JP16847180A JPS5792434A JP S5792434 A JPS5792434 A JP S5792434A JP 16847180 A JP16847180 A JP 16847180A JP 16847180 A JP16847180 A JP 16847180A JP S5792434 A JPS5792434 A JP S5792434A
Authority
JP
Japan
Prior art keywords
film
surface roughness
magnetic metallic
heat treatment
thin film
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
JP16847180A
Other languages
Japanese (ja)
Other versions
JPS6038769B2 (en
Inventor
Hisao Matsuura
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 JP55168471A priority Critical patent/JPS6038769B2/en
Publication of JPS5792434A publication Critical patent/JPS5792434A/en
Publication of JPS6038769B2 publication Critical patent/JPS6038769B2/en
Expired 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates

Abstract

PURPOSE:To obtain a superior magnetic tape for high-density recording by improving sticking strength between a magnetic metallic thin film and a plastic film which has specific surface roughness, by forming the magnetic metallic thin film on the plastic film and by heating it under specific conditions. CONSTITUTION:On a film of polyethylene terephtalate, etc., meeting surface roughness requirements, Ra<=0.03mum and Rm<=0.3mum (Ra: mean surface roughness, Rm: maximum surface roughness), Al is vapor-deposited thinly as a base, and a magnetic metallic thin film of Co-Ni alloy, etc., is vapor-deposited. Under the conditions of heat treatment time (t) and heat treatment temperature T shown by expressions, the heat treatment is done while a running speed and contact section distance between a heat roller and the film are so adjusted that the surface temperature of the heat roller is T and the time of contact with the heat roller is (t). Thus, a durable magnetic tape for high-density recording is obtained which is free of a breakaway of the magnetic metallic layer from the film.
JP55168471A 1980-11-28 1980-11-28 Method for manufacturing magnetic recording media Expired JPS6038769B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168471A JPS6038769B2 (en) 1980-11-28 1980-11-28 Method for manufacturing magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168471A JPS6038769B2 (en) 1980-11-28 1980-11-28 Method for manufacturing magnetic recording media

Publications (2)

Publication Number Publication Date
JPS5792434A true JPS5792434A (en) 1982-06-09
JPS6038769B2 JPS6038769B2 (en) 1985-09-03

Family

ID=15868715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168471A Expired JPS6038769B2 (en) 1980-11-28 1980-11-28 Method for manufacturing magnetic recording media

Country Status (1)

Country Link
JP (1) JPS6038769B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066328A (en) * 1983-09-21 1985-04-16 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171670U (en) * 1988-02-13 1989-12-05
JPH0244072U (en) * 1988-09-22 1990-03-27

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50145207A (en) * 1974-05-13 1975-11-21
JPS5151907A (en) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd SHINKINAJIKI KIROKUBAITAI
JPS53116115A (en) * 1977-03-18 1978-10-11 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50145207A (en) * 1974-05-13 1975-11-21
JPS5151907A (en) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd SHINKINAJIKI KIROKUBAITAI
JPS53116115A (en) * 1977-03-18 1978-10-11 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066328A (en) * 1983-09-21 1985-04-16 Konishiroku Photo Ind Co Ltd Production of magnetic recording medium
JPH0418370B2 (en) * 1983-09-21 1992-03-27 Konishiroku Photo Ind

Also Published As

Publication number Publication date
JPS6038769B2 (en) 1985-09-03

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