KR900005386A - 자기 기록 테잎 - Google Patents

자기 기록 테잎 Download PDF

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Publication number
KR900005386A
KR900005386A KR1019890012847A KR890012847A KR900005386A KR 900005386 A KR900005386 A KR 900005386A KR 1019890012847 A KR1019890012847 A KR 1019890012847A KR 890012847 A KR890012847 A KR 890012847A KR 900005386 A KR900005386 A KR 900005386A
Authority
KR
South Korea
Prior art keywords
tape
weight
magnetic
filler
basic
Prior art date
Application number
KR1019890012847A
Other languages
English (en)
Other versions
KR0139914B1 (ko
Inventor
구니히꼬 뮤따
Original Assignee
사도오 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 사도오 히로시, 티디케이 가부시끼가이샤 filed Critical 사도오 히로시
Publication of KR900005386A publication Critical patent/KR900005386A/ko
Application granted granted Critical
Publication of KR0139914B1 publication Critical patent/KR0139914B1/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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73935—Polyester substrates, e.g. polyethylene terephthalate characterised by roughness or surface features, e.g. by added 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Magnetic Record Carriers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

내용 없음

Description

자기 기록 테잎
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 자기 기록 테잎의 전자기성 변환 특성과 기판 필름의 평균 표면 조도간의 상관 관계를 도시한 것이다.

Claims (10)

  1. 염기성 충진제 [이는 브로모티몰 블루(Bromothymol Blue) 염기성 지시약이 충진제 상에 흡착될때 청색을 나타내는 염기성을 갖는다]를 함유하는 폴리에스테르 필름의 비-자기성 기판 및 비-자기성 기판의 표면상에 형성된 자기성 층을 포함함을 특징으로 하는 자기 기록 테잎.
  2. 제1항에 있어서, 자기성 층이 수지 매트릭스중에 강자성 입자를 함유하고, 추가로 수지 매트릭스중에 100중량부의 강자성 입자를 기준으로 하여 0.75 내지 1.75중량부의 미리스트산 및 0.75 내지 1.75중량부의 스테아르산을 함유하는 테잎.
  3. 제1항에 있어서, 비-자기성 기판의 평균 표면 조도가 26㎛이하인 테잎.
  4. 제1항에 있어서, 염기성 충진제가 알루미나인 테잎.
  5. 제1항에 있어서, 비-자기성 필름이 60내지 100중량％의 알루미나를 염기성 충진제로서 함유하고, 추가로 40내지 0중량％의 실리카를 추가의 충진제로서 함유하는 테잎.
  6. 제5항에 있어서, 비-자기성 필름이 67내지 80중량％의 알루미나 및 20내지 33중량％의 실리카를 함유하는 테잎.
  7. 제1항에 있어서, 염기성 충진제가 비-자기성 기판의 5중량％미만의 양으로 함유된 테잎.
  8. 제1항에 있어서, 염기성 충진제의 입자 크기가 BET 값으로서 5㎡/g이상인 테잎.
  9. 제1항에 있어서, 강자성 입자가-산화제2철, 코발트-변형된-산화제2철, 이산화크롬, 금속철 및 바륨 페라이트로 이루어진 그룹중에서 선택되는 테잎.
  10. 제1항에 있어서, 폴리에스테르가 80몰％ 이상의 에틸렌 테레프탈레이트 단위를 함유하는 폴리에틸렌 테레프탈레이트인 테잎.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890012847A 1988-09-08 1989-09-06 자기 기록 테잎 KR0139914B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-223472 1988-09-08
JP22347288A JP2728268B2 (ja) 1988-09-08 1988-09-08 テープ状磁気記録媒体

Publications (2)

Publication Number Publication Date
KR900005386A true KR900005386A (ko) 1990-04-14
KR0139914B1 KR0139914B1 (ko) 1998-07-01

Family

ID=16798674

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890012847A KR0139914B1 (ko) 1988-09-08 1989-09-06 자기 기록 테잎

Country Status (5)

Country Link
US (1) US5132158A (ko)
JP (1) JP2728268B2 (ko)
KR (1) KR0139914B1 (ko)
DE (1) DE3930019C2 (ko)
GB (1) GB2222906B (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07272256A (ja) * 1994-03-31 1995-10-20 Tdk Corp 磁気記録媒体
FR2871807B1 (fr) * 2004-06-22 2006-08-11 Rhodia Chimie Sa Composition thermoplastique a base de polyester, et procede de fabrication et corps creux obtenus a partir de ces compositions

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125495A (en) * 1977-04-11 1978-11-01 Toray Ind Inc Preparation of polyester
JPS6017339B2 (ja) * 1979-05-19 1985-05-02 ダイアホイル株式会社 架橋高分子微粉体含有ポリエステルフイルム
US4590119A (en) * 1983-07-15 1986-05-20 Toray Industries, Inc. Polyester film and magnetic recording medium therefrom
JPS61239930A (ja) * 1985-04-17 1986-10-25 Teijin Ltd 磁気記録用ポリエステルフイルム
DE3673565D1 (de) * 1985-05-29 1990-09-27 Teijin Ltd Polyesterfilm fuer magnetische aufzeichnungstraeger.
US4818581A (en) * 1986-08-27 1989-04-04 Teijin Limited Biaxially oriented polyester film
JPH0740353B2 (ja) * 1986-10-16 1995-05-01 富士写真フイルム株式会社 磁気記録媒体
JPS63184920A (ja) * 1987-01-28 1988-07-30 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPH0232151A (ja) * 1988-07-21 1990-02-01 Diafoil Co Ltd ポリエステル組成物
JP2720465B2 (ja) * 1988-07-28 1998-03-04 東レ株式会社 熱可塑性ポリエステル組成物

Also Published As

Publication number Publication date
GB2222906B (en) 1992-12-09
JP2728268B2 (ja) 1998-03-18
US5132158A (en) 1992-07-21
KR0139914B1 (ko) 1998-07-01
JPH0273515A (ja) 1990-03-13
GB8919569D0 (en) 1989-10-11
DE3930019C2 (de) 1994-08-04
GB2222906A (en) 1990-03-21
DE3930019A1 (de) 1990-03-15

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E701 Decision to grant or registration of patent right
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