JPS57141029A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57141029A
JPS57141029A JP2590681A JP2590681A JPS57141029A JP S57141029 A JPS57141029 A JP S57141029A JP 2590681 A JP2590681 A JP 2590681A JP 2590681 A JP2590681 A JP 2590681A JP S57141029 A JPS57141029 A JP S57141029A
Authority
JP
Japan
Prior art keywords
magnetic
base material
incidence
vapor
deposited
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
JP2590681A
Other languages
Japanese (ja)
Inventor
Akio Yanai
Ryuji Shirahata
Tatsuji Kitamoto
Kiichiro Yamagishi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2590681A priority Critical patent/JPS57141029A/en
Publication of JPS57141029A publication Critical patent/JPS57141029A/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
    • G11B5/84—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
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation

Abstract

PURPOSE:To obtain a magnetic recording medium which has a high adhesive strengh between a base material and a magnetic layer especially and is superior in weather resistance and durability, by laminating magnetic layers where the angle of incidence of a vapor-deposited magnetic metal to a moving base material is changed continuously from a low value to a high value. CONSTITUTION:Magnetic metallic materials such as Fe, Co, Ni, and their alloy are vapor-deposited in vacuum from a vaporization source 21, which is shigted to the lower right of a cooling can 22, onto the surface of a base material B such as a polyester film continuously from a high angle of incidence to a low angle of incidence to the normal of the surface of the base material B while rotating the can 22 counter-clockwise to move the base material B to the right, thus forming the first magnetic thin film 1. Next, the base material is rewound, and magnetic metallic materials ar vapor-deposited again similarly to laminate the second magnetic thin film 2. Curves and inclined patterns of crystal columns of films 1 and 2 are inclined to the right and are projected upward as shown in 11 and 12 in figure. Thus, a magnetic tape for high-density recording superior in weather resistance and durability where the base material B and magnetic layers 1 and 2 adhere to each other strongly and the packing density is high.
JP2590681A 1981-02-24 1981-02-24 Magnetic recording medium Pending JPS57141029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2590681A JPS57141029A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2590681A JPS57141029A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57141029A true JPS57141029A (en) 1982-09-01

Family

ID=12178820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2590681A Pending JPS57141029A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57141029A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826326A (en) * 1981-08-06 1983-02-16 Sony Corp Manufacture for magnetic recording medium
US5525398A (en) * 1991-03-22 1996-06-11 Tdk Corporation Perpendicular magnetic recording medium and method for making

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826326A (en) * 1981-08-06 1983-02-16 Sony Corp Manufacture for magnetic recording medium
US5525398A (en) * 1991-03-22 1996-06-11 Tdk Corporation Perpendicular magnetic recording medium and method for making

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