KR920010550A - 자기 기록 매체 - Google Patents

자기 기록 매체 Download PDF

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Publication number
KR920010550A
KR920010550A KR1019910017934A KR910017934A KR920010550A KR 920010550 A KR920010550 A KR 920010550A KR 1019910017934 A KR1019910017934 A KR 1019910017934A KR 910017934 A KR910017934 A KR 910017934A KR 920010550 A KR920010550 A KR 920010550A
Authority
KR
South Korea
Prior art keywords
magnetic recording
recording medium
nonmagnetic support
powder
forming
Prior art date
Application number
KR1019910017934A
Other languages
English (en)
Other versions
KR960002032B1 (ko
Inventor
이사오 사사끼
가즈히로 다께다
마사미찌 사이또
오사무 고바야시
겐이찌 기꾸찌
시게루 나까노
Original Assignee
보조 다꾸로
니뽕 빅터 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 보조 다꾸로, 니뽕 빅터 가부시끼가이샤 filed Critical 보조 다꾸로
Publication of KR920010550A publication Critical patent/KR920010550A/ko
Application granted granted Critical
Publication of KR960002032B1 publication Critical patent/KR960002032B1/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
    • G11B5/73929—Polyester substrates, e.g. polyethylene terephthalate comprising naphthalene ring compounds, e.g. polyethylene naphthalate substrates
    • 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
    • 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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/251—Mica
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material

Landscapes

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

내용 없음.

Description

자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 자기 테이프의 구조를 도시하는 단면도.

Claims (7)

  1. 비자성 지지체의 일면 또는 양면에 하부도료층을 형성하고, m 하부도료층 위에 자성층을 형성하여 이루어지는 자기 기록 매체에 있어서, 상기 하부도료층은 평균 입경이 0.5 내지 5.0㎛이며 평판상태비가 5.0이상인 분말을 포함하는 것을 특징으로 하는 자기 기록 매체.
  2. 제1항에 있어서, 상기 분말이 안료이고, 또한 상기 비자성 지지체의 두께를 5.0㎛이상으로 한 것을 특징으로 하는 자기 기록 매체.
  3. 제1항 또는 제2항에 있어서, 상기 비자성 지지체가 폴리에틸렌 나프탈레이트 또는 알라미드인 것을 특징으로 하는 자기 기록 매체.
  4. 제1항에 있어서, 상기 분말이 Al2O3, 마이카, α-Fe2,O3, Ba-Fe, MoO3, CdO, ZnO, CrO3, pbO3, Co(OH)2, pb(OH)4, CaWO3, CaCu4ClO, AgBr, AgCl, BaSO4, pbI2, MgCO3, 카오리사이트 중의 어느 하나인 것을 특징으로 하는 자기 기록 매체.
  5. 비자성 지지체상에 자성층을 형성하여 이루어지는 자기 기록 매체에 있어서, 상기 비자성 지지체는 평균입경이 0.5내지 5.0㎛이며 평판상태비가 5.0이상인 분말을 포함하는 것을 특징으로 하는 자기 기록 매체.
  6. 제5항에 있어서, 상기 비자성 지지체가 폴리에틸렌나프탈레이트 또는 알라미드인 것을 특징으로 하는 자기 기록 매체.
  7. 제5항에 있어서, 상기 분말이 Al2O3, 마이카, α-Fe2,O3, Ba-Fe, MoO3, CdO, ZnO, CrO3, pbO3, Co(OH)2, pb(OH)4, CaWO3, CaCu4ClO, AgBr, AgCl, BaSO4, pbI2, MgCO3, 카오리사이트 중의 어느 하나인 것을 특징으로 하는 자기 기록 매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910017934A 1990-11-27 1991-10-11 자기기록매체 KR960002032B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2327187A JPH04195819A (ja) 1990-11-27 1990-11-27 磁気記録媒体
JP90-327187 1990-11-27

Publications (2)

Publication Number Publication Date
KR920010550A true KR920010550A (ko) 1992-06-26
KR960002032B1 KR960002032B1 (ko) 1996-02-09

Family

ID=18196284

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910017934A KR960002032B1 (ko) 1990-11-27 1991-10-11 자기기록매체

Country Status (4)

Country Link
US (1) US5514464A (ko)
EP (1) EP0488657A3 (ko)
JP (1) JPH04195819A (ko)
KR (1) KR960002032B1 (ko)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5645917A (en) * 1991-04-25 1997-07-08 Fuji Photo Film Co., Ltd. Magnetic recording medium
US5827600A (en) * 1991-01-21 1998-10-27 Fuji Photo Film Co., Ltd. Magnetic recording medium
JP2688296B2 (ja) * 1991-04-25 1997-12-08 帝人株式会社 磁気記録媒体
US5612122A (en) * 1993-02-08 1997-03-18 Imation Corp. High recording density magnetic recording medium having an undercoat layer of iron oxide and carbon black
JPH06236542A (ja) * 1993-02-08 1994-08-23 Minnesota Mining & Mfg Co <3M> 高記録密度磁気記録媒体
DE69510878T2 (de) 1994-09-05 1999-11-11 Victor Company Of Japan, Ltd. Magnetisches Aufzeichnungsmedium
JPH08249649A (ja) * 1995-02-23 1996-09-27 Minnesota Mining & Mfg Co <3M> 磁気記録媒体
US6579592B1 (en) 1996-11-29 2003-06-17 Fuji Photo Film Co., Ltd Magnetic recording tape with controlled Hc and magnetic flux/unit area value and controlled Cl/Fe intensity
KR20010029493A (ko) 1997-02-10 2001-04-06 무네유키 가코우 자기기록매체
US6432503B2 (en) 1997-03-31 2002-08-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
DE69817697T2 (de) 1997-06-30 2004-07-08 Fuji Photo Film Co. Ltd., Minamiashigara Magnetisches Aufzeichnungsmedium
US6096406A (en) * 1997-07-15 2000-08-01 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH11185240A (ja) 1997-10-14 1999-07-09 Fuji Photo Film Co Ltd 磁気記録媒体
US6444290B1 (en) 1998-06-11 2002-09-03 Fuji Photo Film Co., Ltd. Magnetic recording medium comprising a support containing a specific size filler and having a specific concentration of surface protrusions
JP2000011352A (ja) 1998-06-22 2000-01-14 Fuji Photo Film Co Ltd 磁気記録媒体
EP1189210A1 (en) * 2000-09-18 2002-03-20 Victor Company Of Japan, Ltd. Magnetic recording medium
JP2002163816A (ja) 2000-09-18 2002-06-07 Victor Co Of Japan Ltd 磁気テープ
US7494728B2 (en) 2002-04-25 2009-02-24 Hitachi Maxell, Ltd. Magnetic tape and magnetic tape cartridge
AU2003252510A1 (en) * 2002-07-18 2004-02-09 Hitachi Maxell, Ltd. Magnetic tape and magnetic tape cartidge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956221A (ja) * 1982-09-27 1984-03-31 Fuji Photo Film Co Ltd 磁気記録媒体
FR2561982B1 (fr) * 1984-04-03 1987-05-29 Rhone Poulenc Films Films minces polyester etires charges a faible rugosite; procede d'obtention; utilisation de ces films pour la fabrication de bandes magnetiques
JP2500934B2 (ja) * 1985-03-27 1996-05-29 ティーディーケイ株式会社 磁気記録媒体
JPS62135339A (ja) * 1985-12-09 1987-06-18 Diafoil Co Ltd 磁気記録体用ポリエチレン−２，６−ナフタレ−トフイルム
JPH0693297B2 (ja) * 1987-01-30 1994-11-16 富士写真フイルム株式会社 磁気記録媒体
DE3888860T2 (de) * 1987-02-02 1994-08-04 Canon Kk Magnetischer Aufzeichnungsträger.
JPH01300419A (ja) * 1988-05-30 1989-12-04 Hitachi Maxell Ltd 磁気記録媒体
EP0442422B1 (en) * 1990-02-13 1994-11-02 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium

Also Published As

Publication number Publication date
US5514464A (en) 1996-05-07
KR960002032B1 (ko) 1996-02-09
EP0488657A2 (en) 1992-06-03
JPH04195819A (ja) 1992-07-15
EP0488657A3 (en) 1993-05-05

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