JPS57111832A - Production of vertical orientation type magnetic recording medium - Google Patents

Production of vertical orientation type magnetic recording medium

Info

Publication number
JPS57111832A
JPS57111832A JP18768080A JP18768080A JPS57111832A JP S57111832 A JPS57111832 A JP S57111832A JP 18768080 A JP18768080 A JP 18768080A JP 18768080 A JP18768080 A JP 18768080A JP S57111832 A JPS57111832 A JP S57111832A
Authority
JP
Japan
Prior art keywords
magnetic
ultraviolet rays
coating material
production
recording medium
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
JP18768080A
Other languages
Japanese (ja)
Inventor
Wataru Kuramochi
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP18768080A priority Critical patent/JPS57111832A/en
Publication of JPS57111832A publication Critical patent/JPS57111832A/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
    • G11B5/842—Coating a support with a liquid magnetic dispersion

Abstract

PURPOSE:To eliminate an ill effect of the contraction of volume, etc. caused during hardening, by using a material which can be polymerized and hardened by the electron beam or ultraviolet rays as a binder. CONSTITUTION:A magnetic coating material is obtained by compounding the magnetic powder plus a sensitizer when necessary to a binder composed of a material such as epoxy acrylate, polyester acrylate, polyurethane acrylate, etc. which can be polymerized and hardened by the electron beams or ultraviolet rays. Such coating material is coated to a substrate and then made to pass within an orientating device having the magnetic field in the vertical direction to give an orientation to the magnetic matter in the direction vertical to the surface of a medium. The electron beams or ultraviolet rays are irradiated to the coating material concurrently with or after the orientation of the magnetic matter to harden the coated film.
JP18768080A 1980-12-29 1980-12-29 Production of vertical orientation type magnetic recording medium Pending JPS57111832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18768080A JPS57111832A (en) 1980-12-29 1980-12-29 Production of vertical orientation type magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18768080A JPS57111832A (en) 1980-12-29 1980-12-29 Production of vertical orientation type magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57111832A true JPS57111832A (en) 1982-07-12

Family

ID=16210254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18768080A Pending JPS57111832A (en) 1980-12-29 1980-12-29 Production of vertical orientation type magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57111832A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548833A (en) * 1982-01-28 1985-10-22 Fuji Photo Film Co., Ltd. Method for preparing a magnetic recording medium
US11152027B2 (en) 2019-08-20 2021-10-19 International Business Machines Corporation Tape media having synergistic magnetic recording layer and underlayer
US11158337B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Tape cartridge having tape media having synergistic magnetic recording layer and underlayer
US11158340B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Underlayer formulation for tape media
US11158339B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Magnetic recording layer formulation for tape media
US11410697B2 (en) 2019-08-20 2022-08-09 International Business Machines Corporation Process for forming underlayer for tape media
US11790942B2 (en) * 2019-08-20 2023-10-17 International Business Machines Corporation Process for forming magnetic recording layer for tape media

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548833A (en) * 1982-01-28 1985-10-22 Fuji Photo Film Co., Ltd. Method for preparing a magnetic recording medium
US11152027B2 (en) 2019-08-20 2021-10-19 International Business Machines Corporation Tape media having synergistic magnetic recording layer and underlayer
US11158337B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Tape cartridge having tape media having synergistic magnetic recording layer and underlayer
US11158340B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Underlayer formulation for tape media
US11158339B2 (en) 2019-08-20 2021-10-26 International Business Machines Corporation Magnetic recording layer formulation for tape media
US11410697B2 (en) 2019-08-20 2022-08-09 International Business Machines Corporation Process for forming underlayer for tape media
US11749306B2 (en) 2019-08-20 2023-09-05 International Business Machines Corporation Tape media having synergistic magnetic recording layer and underlayer
US11790942B2 (en) * 2019-08-20 2023-10-17 International Business Machines Corporation Process for forming magnetic recording layer for tape media

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