JPS57189343A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS57189343A
JPS57189343A JP7534481A JP7534481A JPS57189343A JP S57189343 A JPS57189343 A JP S57189343A JP 7534481 A JP7534481 A JP 7534481A JP 7534481 A JP7534481 A JP 7534481A JP S57189343 A JPS57189343 A JP S57189343A
Authority
JP
Japan
Prior art keywords
magnetic
base film
roller
original base
orientation roller
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
JP7534481A
Other languages
Japanese (ja)
Inventor
Sadao Yamashita
Hitoshi Tsukamoto
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 JP7534481A priority Critical patent/JPS57189343A/en
Publication of JPS57189343A publication Critical patent/JPS57189343A/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
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To orient magnetic particles in the width direction of an original base film, by constituting so that the reverse side of the base film immediately after a magnetic coating material has been applied is made to contact and run on an orientation roller where a magnetic field operates in the roller axial core direction. CONSTITUTION:An orientation roller 5 to be used is formed by making a lot of cylindrical permanent magnets 6 tightly adhere in parallel and fitting them to the outside of a roller shaft 5a so that the same poles are adjacent to each other, for instance, such as N-S, S-N, N-S-, and fixing these magnets 6 by flanges 7, 7 fitted into both the right and left ends. Subsequently, the reverse side of an original base film 1 immediately after a magnetic coating material containing needle-like magnetic powder has been applied uniformly is made to contact and run on the orientation roller 5, and the orientation roller 5 is rotated together with the original base film 1. In this way, it is possible to easily manufacture a video magnetic tape, etc. on which magnetic particles have been oriented in the width direction of a film.
JP7534481A 1981-05-18 1981-05-18 Manufacture of magnetic recording medium Pending JPS57189343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7534481A JPS57189343A (en) 1981-05-18 1981-05-18 Manufacture of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7534481A JPS57189343A (en) 1981-05-18 1981-05-18 Manufacture of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57189343A true JPS57189343A (en) 1982-11-20

Family

ID=13573536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7534481A Pending JPS57189343A (en) 1981-05-18 1981-05-18 Manufacture of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57189343A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163805A (en) * 1988-12-16 1990-06-25 Nakagawa Electric Ind Co Ltd Structure of governor
JP2010519080A (en) * 2007-02-20 2010-06-03 カーベーアー−ジオリ ソシエテ アノニム Cylinder body for orienting magnetic flakes contained in ink or varnish applied on a sheet-like or web-like substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163805A (en) * 1988-12-16 1990-06-25 Nakagawa Electric Ind Co Ltd Structure of governor
JP2010519080A (en) * 2007-02-20 2010-06-03 カーベーアー−ジオリ ソシエテ アノニム Cylinder body for orienting magnetic flakes contained in ink or varnish applied on a sheet-like or web-like substrate

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