KR900000848A - 자기기록매체 - Google Patents

자기기록매체 Download PDF

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Publication number
KR900000848A
KR900000848A KR1019890007916A KR890007916A KR900000848A KR 900000848 A KR900000848 A KR 900000848A KR 1019890007916 A KR1019890007916 A KR 1019890007916A KR 890007916 A KR890007916 A KR 890007916A KR 900000848 A KR900000848 A KR 900000848A
Authority
KR
South Korea
Prior art keywords
magnetic
weight
parts
magnetic medium
magnetic layer
Prior art date
Application number
KR1019890007916A
Other languages
English (en)
Inventor
도시아끼 이데
후미노리 도꾸다
나오유끼 나가시마
Original Assignee
사또 히로시
티디케이 가부시끼가이샤
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 사또 히로시, 티디케이 가부시끼가이샤 filed Critical 사또 히로시
Publication of KR900000848A publication Critical patent/KR900000848A/ko

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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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7026—Radiation curable polymers
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer
    • G11B5/7085—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer non-magnetic abrasive particles
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/71—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the lubricant

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)

Abstract

내용 없음

Description

자기기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 비자성 지지체(non-magnetic support), 및 도포에 의해 이 지지체상에 형성된 자성층을 함유하며, 입자크기 T가 0.1D≤T≤0.4D[여기에서, D는 자성층 도막두께이다] 범위내에 포함되는 탄소를 자성층에 포함함을 특징으로 하는 플렉서블 자기기록매체(flexible magnetic recording medium).
  2. 제1항에 있어서, 자성층이 100중량부의 자성분말 및 0.2 내지 20중량부의 탄소를 함유하는 자기매체.
  3. 제2항에 있어서, 탄소량이 1 내지 10중량부의 자성분말인 자기매체.
  4. 제2항에 있어서, 추가로 연마재가 자성층 100중량부에 대하여 0.1 내지 15중량부의 양으로 혼입된 자기매체.
  5. 제4항에 있어서, 연마재가 MgO, Cr2O3, α-Al2O3, α-Al2O3, α-SiC 및 β-SiC중에서 선택되는 자기매체.
  6. 제1항에 있어서, 자성층이 100중량부의 자성분말을 함유하며, 또한 0.5 내지 20중량부의 불포화 지방산 에스테르를 윤활제로서 함유하는 자기매체.
  7. 제6항에 있어서, 불포화 지방산 에스테르가 올레산 에스테르, 엘라이드산 에스테르, 리놀레산 에스테르 및 리놀레인산 에스테르 중에서 선택되는 자기매체.
  8. 제1항에 있어서, 자성층이 전자선-또는 방사선-경화성 수지를 결합제로서 함유하는 자기매체.
  9. 제8항에 있어서, 전자비임-또는 방사선-경화선 수지가, 분자량이 5000 이상인 화합물 A, 분자량이 1000 내지 50000이고 1개 이상의 불포화 2중결합을 갖는 화합물 B, 및 분자량이 2000 이하이고 1개 이상의 불포화 2중결합을 갖는 화합물 C중 하나 이상을 함유하는 자기매체.
  10. 제9항에 있어서, 화합물 A, B 및 C가 독립적으로 아크릴릭 2중결합-도입 비닐 클로라이드/비닐 아세테이트/비닐 알콜 공중합체, 및 불포화 2중 결합을 갖는 단량체 및 전중합체중에서 선택되는 자기매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890007916A 1988-06-10 1989-06-09 자기기록매체 KR900000848A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63141643A JP2828248B2 (ja) 1988-06-10 1988-06-10 磁気記録媒体
JP88-141643 1988-06-10

Publications (1)

Publication Number Publication Date
KR900000848A true KR900000848A (ko) 1990-01-31

Family

ID=15296817

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890007916A KR900000848A (ko) 1988-06-10 1989-06-09 자기기록매체

Country Status (3)

Country Link
JP (1) JP2828248B2 (ko)
KR (1) KR900000848A (ko)
DE (1) DE3918724A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428491B1 (ko) * 2001-06-15 2004-04-28 주식회사 엘지생활건강 항주름제를 함유하는 하이드로겔 시트 조성물

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680826A (en) * 1979-11-30 1981-07-02 Sony Corp Magnetic recording medium
JPS61122921A (ja) * 1984-11-19 1986-06-10 Fuji Photo Film Co Ltd 磁気記録媒体
JPS63211118A (ja) * 1987-02-27 1988-09-02 Hitachi Ltd 磁気記録媒体
JP2647099B2 (ja) * 1987-10-31 1997-08-27 株式会社東芝 磁気記録媒体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428491B1 (ko) * 2001-06-15 2004-04-28 주식회사 엘지생활건강 항주름제를 함유하는 하이드로겔 시트 조성물

Also Published As

Publication number Publication date
DE3918724A1 (de) 1989-12-14
JPH01312728A (ja) 1989-12-18
JP2828248B2 (ja) 1998-11-25

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application