DE3673565D1 - Polyesterfilm fuer magnetische aufzeichnungstraeger. - Google Patents

Polyesterfilm fuer magnetische aufzeichnungstraeger.

Info

Publication number
DE3673565D1
DE3673565D1 DE8686107299T DE3673565T DE3673565D1 DE 3673565 D1 DE3673565 D1 DE 3673565D1 DE 8686107299 T DE8686107299 T DE 8686107299T DE 3673565 T DE3673565 T DE 3673565T DE 3673565 D1 DE3673565 D1 DE 3673565D1
Authority
DE
Germany
Prior art keywords
magnetic recording
polyester film
recording carriers
carriers
polyester
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.)
Expired - Lifetime
Application number
DE8686107299T
Other languages
English (en)
Inventor
Hideo Katoh
Kinji Hasegawa
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Application granted granted Critical
Publication of DE3673565D1 publication Critical patent/DE3673565D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B32B27/36—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.]
DE8686107299T 1985-05-29 1986-05-28 Polyesterfilm fuer magnetische aufzeichnungstraeger. Expired - Lifetime DE3673565D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11420285 1985-05-29

Publications (1)

Publication Number Publication Date
DE3673565D1 true DE3673565D1 (de) 1990-09-27

Family

ID=14631761

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686107299T Expired - Lifetime DE3673565D1 (de) 1985-05-29 1986-05-28 Polyesterfilm fuer magnetische aufzeichnungstraeger.

Country Status (5)

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

Families Citing this family (48)

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JPS62245520A (ja) * 1986-04-16 1987-10-26 Diafoil Co Ltd 磁気記録媒体
US5985402A (en) * 1986-12-19 1999-11-16 Hitachi, Ltd. Magnetic disk and its manufacturing method
DE3888860T2 (de) * 1987-02-02 1994-08-04 Canon Kk Magnetischer Aufzeichnungsträger.
US5139849A (en) * 1987-02-02 1992-08-18 Canon Kabushiki Kaisha Magnetic recording medium
US4990400A (en) * 1987-02-12 1991-02-05 Diafoil Company, Limited Polyester films, magnetic recording media and film capacitors produced therefrom
EP0310677B1 (de) * 1987-04-07 1995-12-27 Toray Industries, Inc. Polyesterfilm
EP0312616B1 (de) * 1987-05-01 1993-09-29 Toray Industries, Inc. Polyesterfilm und magnetisches speichermedium
US5737159A (en) * 1987-07-29 1998-04-07 Hitachi, Ltd. Magnetic disk and its manufacturing method
JPS6453840A (en) * 1987-08-25 1989-03-01 Toray Industries Polyester laminated film
JPH0827934B2 (ja) * 1987-09-10 1996-03-21 ダイアホイルヘキスト株式会社 磁気カード
US4952449A (en) * 1987-10-09 1990-08-28 Toray Industries, Inc. Biaxially oriented polyester film
JPH0652567B2 (ja) * 1987-10-23 1994-07-06 富士写真フイルム株式会社 磁気記録媒体
US5188891A (en) * 1987-12-25 1993-02-23 Diafoil Company, Limited Magnetic recording medium comprising a polyester film substrate, a magnetic coating and a specified back coat layer
US5045379A (en) * 1988-06-03 1991-09-03 Diafoil Company, Limited Polyester film for high density magnetic recording medium
JP2728268B2 (ja) * 1988-09-08 1998-03-18 ティーディーケイ株式会社 テープ状磁気記録媒体
US5217820A (en) * 1988-12-16 1993-06-08 Kabushiki Kaisha Toshiba High density slave magnetic recording media having specified perpendicular squareness rectangular ratio, roughness and number of projections
FR2640983B1 (de) * 1988-12-28 1992-09-25 Rhone Poulenc Films
JPH02193313A (ja) * 1989-01-20 1990-07-31 Fuji Photo Film Co Ltd 磁気記録媒体
US5202810A (en) * 1989-04-27 1993-04-13 Hitachi, Ltd. Magnetic disk having an improved surface configuration
JP2770048B2 (ja) * 1989-06-15 1998-06-25 コニカ株式会社 磁気記録媒体
JP2811329B2 (ja) * 1989-09-14 1998-10-15 コニカ株式会社 磁気記録媒体
US5116658A (en) * 1989-12-04 1992-05-26 Konica Corporation Magnetic recording medium
US5091269A (en) * 1989-12-14 1992-02-25 Sony Corporation Magnetic recording medium lubricant consisting of an amine salt of carboxylic acid, an amine salt of perfluoroalkyl carboxylic acid or an fluoro amine salt of perfluoro carboxylic acid
US5324582A (en) * 1990-08-17 1994-06-28 Konica Corporation Magnetic recording medium
WO1992005942A1 (en) * 1990-10-08 1992-04-16 Teijin Limited Polyester film for magnetic recording media
JP3014009B2 (ja) * 1991-01-11 2000-02-28 ミネソタ マイニング アンド マニュファクチャリング カンパニー 磁気記録媒体
JP2688291B2 (ja) * 1991-02-06 1997-12-08 帝人株式会社 磁気記録媒体用ポリエステルフイルム
US5431983A (en) * 1991-04-25 1995-07-11 Teijin Limited Magnetic recording tape comprising a polyethylene-2,6-napthalate substrate, magnetic metal thin film, and a backcoat layer
GB9110902D0 (en) * 1991-05-21 1991-07-10 Ici Plc Polymeric film
JP2777003B2 (ja) * 1991-06-28 1998-07-16 帝人株式会社 磁気記録媒体用ポリエステルフイルム及びその製造方法
JPH05154972A (ja) * 1991-07-02 1993-06-22 Unitika Ltd 粗面化フィルムおよびその製造方法
JPH05114127A (ja) * 1991-10-23 1993-05-07 Hitachi Ltd 磁気デイスク及びその製造方法並びに磁気デイスク装置
JP2585494B2 (ja) * 1991-11-13 1997-02-26 帝人株式会社 ポリエチレン―２，６―ナフタレートフィルム
DE69227354T2 (de) * 1991-11-18 1999-05-06 Toray Industries, Inc., Tokio/Tokyo Biaxial orientierter Film aus thermoplastischem Harz
DE69233633T2 (de) * 1991-12-25 2007-05-16 Teijin Ltd. Polyesterfilm für magnetische Aufzeichnung
JPH05189747A (ja) * 1992-01-16 1993-07-30 Diafoil Co Ltd デジタル・コンパクト・カセット用ベースフィルム
US5434000A (en) * 1992-07-30 1995-07-18 Toyo Boseki Kabushiki Kaisha Biaxially oriented polyester film
JP2732997B2 (ja) * 1993-01-29 1998-03-30 帝人株式会社 二軸配向ポリエチレン―２，６―ナフタレートフィルム
US5677033A (en) * 1993-02-11 1997-10-14 Teijin Limited Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film
EP0940426B1 (de) * 1993-02-15 2003-02-05 Teijin Limited Biaxial ausgerichteter, in eine Richtung ausgedehnter Polyethylen-2,6-naphthalat-Film
US5626942A (en) * 1993-05-05 1997-05-06 Toray Industries, Inc. Polyester film and process for producing the same
US5607747A (en) * 1994-04-15 1997-03-04 Minnesota Mining And Manufacturing Company Magnetic recording media having a backside coating which includes multicomponent, nonmagnetic particles
US5976668A (en) * 1995-02-28 1999-11-02 Sony Corporation Base film for magnetic recording medium and magnetic recording medium using same
US6553788B1 (en) * 1999-02-23 2003-04-29 Nippon Sheet Glass Co., Ltd. Glass substrate for magnetic disk and method for manufacturing
WO2007095176A2 (en) * 2006-02-14 2007-08-23 Toray Plastics (America), Inc. Biaxially oriented polyester film for molding process
JP5492781B2 (ja) * 2007-10-31 2014-05-14 デュポン・テイジン・フィルムズ・ユー・エス・リミテッド・パートナーシップ コーティングされた物品
KR101268250B1 (ko) * 2009-06-30 2013-05-30 코오롱인더스트리 주식회사 열수축성 폴리에스테르계 필름
JP5281986B2 (ja) * 2009-08-26 2013-09-04 富士フイルム株式会社 積層フィルムおよび複合フィルム

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JPS5517851A (en) * 1978-07-21 1980-02-07 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS57130234A (en) * 1981-02-02 1982-08-12 Fuji Photo Film Co Ltd Magnetic recording medium
EP0061769B1 (de) * 1981-03-30 1987-04-01 Teijin Limited Magnetisches Aufzeichnungsmedium
JPS57189336A (en) * 1981-05-18 1982-11-20 Hitachi Maxell Ltd Magnetic recording medium
JPS5868225A (ja) * 1981-10-13 1983-04-23 Toray Ind Inc 磁気記録媒体
EP0077549B2 (de) * 1981-10-15 1991-01-02 Matsushita Electric Industrial Co., Ltd. Magnetisches Aufzeichnungsmedium
EP0088634B1 (de) * 1982-03-10 1986-12-30 Toray Industries, Inc. Schichtstoffilm und damit hergestelltes magnetisches Aufzeichnungsmedium
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

Publication number Publication date
JPH0433273B2 (de) 1992-06-02
KR860008872A (ko) 1986-12-18
EP0203604A2 (de) 1986-12-03
US4670319A (en) 1987-06-02
EP0203604A3 (en) 1988-07-13
EP0203604B1 (de) 1990-08-22
KR930005779B1 (ko) 1993-06-24
JPS6264545A (ja) 1987-03-23

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