KR860008872A - 금속박막 자기기록 매체용 폴리에스테르 필름 - Google Patents

금속박막 자기기록 매체용 폴리에스테르 필름 Download PDF

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KR860008872A
KR860008872A KR1019860004234A KR860004234A KR860008872A KR 860008872 A KR860008872 A KR 860008872A KR 1019860004234 A KR1019860004234 A KR 1019860004234A KR 860004234 A KR860004234 A KR 860004234A KR 860008872 A KR860008872 A KR 860008872A
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film
micrometers
height
film according
magnetic recording
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KR1019860004234A
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KR930005779B1 (ko
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히데오 가또오
긴지 하세가와
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데이진 가부시끼가이샤
나까오 마스로오
데이진 가부시끼 가이샤
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    • 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
    • G11B5/735—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 back layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • G11B5/735—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 back layer
    • G11B5/7356—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 back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • G11B5/7358—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 back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2 specially adapted for achieving a specific property, e.g. average roughness [Ra]
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/208—Magnetic, paramagnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2429/00—Carriers for sound or information
    • B32B2429/02—Records or discs
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/91—Product with molecular orientation
    • 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
    • Y10T428/25—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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

내용 없음

Description

금속박막 자기기록 매체용 폴리에스테르 필름
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예에서 동적 마찰계수를 측정하는 장치임.
도면의 주요부분에 대한 부호의 설명
2 : 장력조절부, 10 : 출구장력감지기, T1: 입구장력, T2: 출구장력

Claims (9)

  1. 금속박막형 자기기록매체용 2축 배향된 폴리에스테르 필름으로서, 상기한 폴리에스테르 필름은 금속박막이 자기기록층으로서 도포될 제1 표면과 유기 중합체 결속제와 그 내에 분산된 불활성 고형 미립자로 구성된 슬립 용이층으로 피복된 제2 표면을 갖고, 제1 표면은 (a) 직경 0.2∼2미크로미터이고 높이 20∼200Å이고 m㎡당 103∼106의 밀도로 분포된 큰돌기와 (b) 직경 0.01∼0.1 미크로미터이고 높이 10∼100Å이고 m㎡당 106∼109의 밀도로 분포된 작은 돌기를 갖는 필름.
  2. 제1항에 있어서, 큰돌기가 직경 0.5∼2미크로미터이고 높이 50∼200Å이고 m㎡당 104∼105의 밀도로 분포됨을 특징으로 하는 필름.
  3. 제1항에 있어서, 작은돌기가 직경 0.05∼0.1 미크로미터이고 높이 10∼100Å이고 m㎡당 107∼108의 밀도로 분포됨을 특징으로 하는 필름.
  4. 제1항에 있어서, 큰돌기가 필름 중에 분산된 평균 입경 0.05∼0.5 미크로미터인 불활성 고형 미립자에 의하여 생성됨을 특징으로 하는 필름.
  5. 제1항에 있어서, 작은 돌기가 평균입경 0.01∼0.1 미크로미터인 불활성 고형미립자와 유기 중합체 결속재로 구성된 코팅 조성물을 제1 표면에 피복함으로써 형성됨을 특징으로 하는 필름.
  6. 제1항에 있어서, 제2표면상의 슬립 용이층이 0.002∼0.01 미크로미터의 중앙선 평균조도 Ra및 0.01∼0.1 미크로미터의 10-점 평균조도 Rz로써 표시되는 표면조도를 가짐을 특징으로 하는 필름.
  7. 제1항에 있어서, 제2 표면상의 슬립용이층이 높이 200∼600Å인 망상 미세돌기를 갖는 표면을 가짐을 특징으로 하는 필름.
  8. 제1항에 있어서, 종방향의 영률이 550kg/m㎡ 이상이고 횡방향의 열수축률이 1∼5% 임을 특징으로 하는 필름.
  9. 제1항의 폴리에스테르 필름과 그것의 제1표면에 도포된 강자성 금속박막으로 구성된 자기기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860004234A 1985-05-29 1986-05-29 금속박막 자기기록 매체용 폴리에스테르 필름 KR930005779B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP85-114202 1985-05-29
JP114202 1985-05-29
JP11420285 1985-05-29

Publications (2)

Publication Number Publication Date
KR860008872A true KR860008872A (ko) 1986-12-18
KR930005779B1 KR930005779B1 (ko) 1993-06-24

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KR1019860004234A KR930005779B1 (ko) 1985-05-29 1986-05-29 금속박막 자기기록 매체용 폴리에스테르 필름

Country Status (5)

Country Link
US (1) US4670319A (ko)
EP (1) EP0203604B1 (ko)
JP (1) JPS6264545A (ko)
KR (1) KR930005779B1 (ko)
DE (1) DE3673565D1 (ko)

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US4550049A (en) * 1982-03-10 1985-10-29 Toray Industries, Inc. Laminated film and magnetic recording medium made therewith
JPS599428A (ja) * 1982-07-09 1984-01-18 Kubota Ltd 廃熱ボイラを備えた焼却炉の自動燃焼制御方法
JPS5938925A (ja) * 1982-08-26 1984-03-03 Toray Ind Inc 磁気記録材料
JPS5984927A (ja) * 1982-11-02 1984-05-16 Toray Ind Inc 磁気記録媒体用ポリエステルフイルム
JP2608868B2 (ja) * 1982-11-18 1997-05-14 松下電器産業株式会社 磁気記録媒体
JPH0677308B2 (ja) * 1984-06-19 1994-09-28 東レ株式会社 磁気記録媒体用ポリエステルフイルム

Also Published As

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EP0203604A3 (en) 1988-07-13
EP0203604A2 (en) 1986-12-03
DE3673565D1 (de) 1990-09-27
US4670319A (en) 1987-06-02
KR930005779B1 (ko) 1993-06-24
JPS6264545A (ja) 1987-03-23
EP0203604B1 (en) 1990-08-22
JPH0433273B2 (ko) 1992-06-02

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