KR960011862A - 자기기록매체 - Google Patents

자기기록매체 Download PDF

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Publication number
KR960011862A
KR960011862A KR1019950029620A KR19950029620A KR960011862A KR 960011862 A KR960011862 A KR 960011862A KR 1019950029620 A KR1019950029620 A KR 1019950029620A KR 19950029620 A KR19950029620 A KR 19950029620A KR 960011862 A KR960011862 A KR 960011862A
Authority
KR
South Korea
Prior art keywords
magnetic recording
base film
recording medium
less
methylene chloride
Prior art date
Application number
KR1019950029620A
Other languages
English (en)
Other versions
KR100351611B1 (ko
Inventor
노부아키 이토오
아키미쭈 쭈쿠다
카주마사 요네야마
Original Assignee
마에다 카쯔노수케
토오레 카부시키가이샤
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 마에다 카쯔노수케, 토오레 카부시키가이샤 filed Critical 마에다 카쯔노수케
Publication of KR960011862A publication Critical patent/KR960011862A/ko
Application granted granted Critical
Publication of KR100351611B1 publication Critical patent/KR100351611B1/ko

Links

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
    • G11B5/73937—Substrates having an organic polymer comprising a ring structure
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide

Landscapes

  • Magnetic Record Carriers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

본 발명은, 방향족폴리아미드로 된 기재필름의 적어도 한쪽면에 자성층을 설치하여 구성되는 자기기록매체로서, 그 기재필름의 적어도 1방향의 인장영률이 700@이상이고, 염화메틸렌 추출물량이 0.5% 이하이며, 그 기재필름의 길이방향의 1@당 1kg의 하중을 가했을 때의 100@, 10분간의 치수변화율이 2% 이하인 것을 특징으로 하는 자기기록매체에 관한 것으로서 엄격한 환경하에 있어서도 주행성, 내구성에 우수한 자기기록매체를 제공하는 것이다.

Description

자기기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (3)

  1. 방향족폴리아미드로 이루어진 기재필름의 적어도 한쪽면에 자성층을 설치하여 구성되는 자기기록매체에 있어서, 그 기재필름의 적어도 한방향의 인장영률이 700kg/㎟이상이고, 염화메틸렌 추출물량이 0.5% 이하이며, 그 기재필름의 길이방향의 1㎟당 1kg의 하중을 가했을 때의 100℃, 10분간의 치수변화율이 2%이하인 것을 특징으로 하는 자기기록매체.
  2. 제1항에 있어서, 기재필름의 염화메틸렌 추출량이 0.1ppm 이상 0.5% 이하인 것을 특징으로 하는 자기기록매체.
  3. 제1항 또는 제2항 중 어느 한 항에 있어서, 기재필름의 적어도 한쪽면의 중심선 평균깊이가 2~500nm, 중심선 평균거칠기가 0.1~100nm, + 점 평균거칠기가 2~500nm인 것을 특징으로 하는 자기기록매체.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950029620A 1994-09-14 1995-09-12 자기기록매체 KR100351611B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6219676A JP2616711B2 (ja) 1994-09-14 1994-09-14 磁気記録媒体
JP94-219676 1994-09-14

Publications (2)

Publication Number Publication Date
KR960011862A true KR960011862A (ko) 1996-04-20
KR100351611B1 KR100351611B1 (ko) 2003-01-15

Family

ID=16739236

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950029620A KR100351611B1 (ko) 1994-09-14 1995-09-12 자기기록매체

Country Status (7)

Country Link
US (1) US5645918A (ko)
EP (1) EP0702361B1 (ko)
JP (1) JP2616711B2 (ko)
KR (1) KR100351611B1 (ko)
CN (1) CN1069775C (ko)
CA (1) CA2158219A1 (ko)
DE (1) DE69520815T2 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5993938A (en) * 1996-04-19 1999-11-30 Toray Industries, Inc. Aromatic polyamide film, method of manufacturing the same and magnetic recording medium using the same film
TW385275B (en) * 1996-08-29 2000-03-21 Toray Industries Aromatic polyamide-based resin molding, a process therefor and magnetic recording medium made from the molding
CA2256433A1 (en) * 1997-03-21 1998-10-01 Toray Industries Inc. Aromatic polyamide film and magnetic recording medium made by using the same
JPH1173628A (ja) * 1997-08-27 1999-03-16 Fuji Photo Film Co Ltd 磁気記録媒体

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344957B2 (ko) * 1973-12-28 1978-12-02
JPS5181854A (ja) 1975-01-16 1976-07-17 Toray Industries Hokozokuhoriamidofuirumu
US4210703A (en) * 1979-01-11 1980-07-01 Minnesota Mining And Manufacturing Company Polyester-film backed magnetic recording tape having epoxy subbing layer
JPS58168655A (ja) 1982-03-30 1983-10-05 Toray Ind Inc 磁気記録媒体
EP0090499B1 (en) * 1982-03-30 1989-05-24 Toray Industries, Inc. Magnetic recording medium
JP2523102B2 (ja) * 1983-12-12 1996-08-07 東レ株式会社 磁気記録媒体用複合ポリエステルフイルム
JPH0648521B2 (ja) * 1985-07-23 1994-06-22 株式会社東芝 垂直磁気記録媒体の製造方法
KR890004258B1 (ko) * 1984-11-14 1989-10-28 가부시끼가이샤 도오시바 수직자기기록 매체 및 그 제조방법
JPS62112218A (ja) 1985-11-11 1987-05-23 Asahi Chem Ind Co Ltd 磁気テ−プ
JP2560694B2 (ja) * 1986-07-22 1996-12-04 東レ株式会社 感熱記録用転写体
JPH0668822B2 (ja) * 1986-09-03 1994-08-31 旭化成工業株式会社 垂直磁気記録媒体
JP2643171B2 (ja) 1986-09-03 1997-08-20 旭化成工業株式会社 磁気記録媒体
JP2564834B2 (ja) * 1987-07-20 1996-12-18 東レ株式会社 耐熱容器
US4952449A (en) * 1987-10-09 1990-08-28 Toray Industries, Inc. Biaxially oriented polyester film
US5013823A (en) * 1988-12-02 1991-05-07 Kureha Kagaku Kogyo K.K. Poly(arylene sulfide) sheet and production process thereof
JP2832973B2 (ja) * 1989-01-20 1998-12-09 東レ株式会社 耐熱容器
JP2947355B2 (ja) * 1989-02-11 1999-09-13 日立マクセル株式会社 磁気記録テープ
JP2718749B2 (ja) * 1989-03-22 1998-02-25 三菱化学株式会社 耐熱性ポリアミドフィルム
JP2809287B2 (ja) * 1991-04-19 1998-10-08 富士写真フイルム株式会社 磁気記録媒体
JP3105306B2 (ja) * 1991-09-03 2000-10-30 寳酒造株式会社 糖質又は複合糖質の製造方法

Also Published As

Publication number Publication date
JP2616711B2 (ja) 1997-06-04
EP0702361B1 (en) 2001-05-02
CN1143239A (zh) 1997-02-19
DE69520815D1 (de) 2001-06-07
DE69520815T2 (de) 2001-10-11
CN1069775C (zh) 2001-08-15
EP0702361A1 (en) 1996-03-20
JPH0887737A (ja) 1996-04-02
CA2158219A1 (en) 1996-03-15
KR100351611B1 (ko) 2003-01-15
US5645918A (en) 1997-07-08

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