KR920017035A - 자기 테이프 - Google Patents

자기 테이프 Download PDF

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Publication number
KR920017035A
KR920017035A KR1019920002674A KR920002674A KR920017035A KR 920017035 A KR920017035 A KR 920017035A KR 1019920002674 A KR1019920002674 A KR 1019920002674A KR 920002674 A KR920002674 A KR 920002674A KR 920017035 A KR920017035 A KR 920017035A
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KR
South Korea
Prior art keywords
magnetic tape
modulus
base film
young
longitudinal direction
Prior art date
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Granted
Application number
KR1019920002674A
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English (en)
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KR0159113B1 (ko
Inventor
마사미 엣쮸
히사시 하마노
마사히로 호소이
야스히로 사에끼
Original Assignee
이다가끼 히로시
데이진 가부시끼가이샤
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Application filed by 이다가끼 히로시, 데이진 가부시끼가이샤 filed Critical 이다가끼 히로시
Publication of KR920017035A publication Critical patent/KR920017035A/ko
Application granted granted Critical
Publication of KR0159113B1 publication Critical patent/KR0159113B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • 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]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

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

Abstract

내용 없음

Description

자기 테이프
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 기재필름의 종방향 및 횡방향 영의 계수(Young's modulus)의 관계를 나타낸다.

Claims (13)

  1. 종방향의 영계수가 850㎏/㎟이상, 횡방향의 영계수가 550㎏/㎟이상이며, 표면조도 (Ra)가 0.015∼0.040㎛의 범위이며, 100℃에서 1시간 유지시킨 경우에 있어서의 종방향의 열수축률이 0.3%인 2축 방향성 폴리에틸렌-2, 6-나프탈레이트 필름을 기재 필름으로 하여 그 위에 자성층을 부여한 것을 특징으로 하는 오디오 카세트용 자기 테이프.
  2. 제1항에 있어서, 기재 필름의 종방향의 영계수가 900㎏/㎟ 이상인 자기 테이프.
  3. 제2항에 있어서, 기재 필름의 종방향의 영계수가 950㎏/㎟ 이상인 자기 테이프.
  4. 제1항에 있어서, 기재 필름의 횡방향의 영계수가 600㎏/㎟ 이상인 자기 테이프.
  5. 제4항에 있어서, 기재 필름의 횡방향의 영계수가 650㎏/㎟ 이상인 자기 테이프.
  6. 제1항에 있어서, 기재 필름의 종방향의 영계수(EM)와 횡방향의 영계수(ET)와의 차 (△E=EM-ET)가 250㎏/㎟ 이상인 자기 테이프.
  7. 제1항에 있어서, 100℃에서 1시간 유지시킨 경우에 있어서의 기재 필름의 종방향의 열수축율이 0.15% 이하인 자기 테이프.
  8. 제7항에 있어서, 100℃에서 1시간 유지시킨 경우에 있어서의 기재 필름의 종방향의 열수축율이 0.10% 이하인 자기 테이프.
  9. 제1항에 있어서의, 자기필름의 표면 조도(Ra)는 0.20∼0.038㎛의 범위에 있는 자기 테이프.
  10. 제9항에 있어서의, 자기필름의 표면 조도(Ra)는 0.25∼0.036㎛의 범위에 있는 자기 테이프.
  11. 제1항에 있어서, 상기 폴리에틸렌-2, 6-나프탈레이트 필름은 0.1∼1.8㎛의 평균 입경을 가지며 0.01∼1.5중량% 첨가되는 불활성 고상미립자를 함유하는 자기 테이프.
  12. 제11항에 있어서, 상기 불활성 고상 미립자는 카울린, 이산화규소, 산화티탄, 탄화칼슘 및 이들중 2이상의 혼합물로 구성되는 군을 부터 선택되는 자기 테이프.
  13. 제1항에 있어서, 기재 필름의 밀도는 1.345∼1.355g/㎠의 범위내에 있는 자기 테이프.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920002674A 1991-02-21 1992-02-21 자기 테이프 Expired - Fee Related KR0159113B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3047406A JPH04265514A (ja) 1991-02-21 1991-02-21 磁気テープ
JP91-47406 1991-02-21

Publications (2)

Publication Number Publication Date
KR920017035A true KR920017035A (ko) 1992-09-26
KR0159113B1 KR0159113B1 (ko) 1999-01-15

Family

ID=12774244

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920002674A Expired - Fee Related KR0159113B1 (ko) 1991-02-21 1992-02-21 자기 테이프

Country Status (5)

Country Link
US (1) US5316823A (ko)
EP (1) EP0500018B1 (ko)
JP (1) JPH04265514A (ko)
KR (1) KR0159113B1 (ko)
DE (1) DE69213275T2 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2550250B2 (ja) * 1991-12-12 1996-11-06 帝人株式会社 ポリエチレンー２，６ーナフタレートフィルム
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
JPH06176345A (ja) * 1992-12-07 1994-06-24 Konica Corp 磁気記録媒体及び磁気記録方法
US5677033A (en) * 1993-02-11 1997-10-14 Teijin Limited Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film
EP0940426B1 (en) * 1993-02-15 2003-02-05 Teijin Limited Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film
US5631063A (en) * 1993-12-22 1997-05-20 Teijin Limited Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxylate
KR20010024241A (ko) * 1998-07-24 2001-03-26 야스이 쇼사꾸 감열 전사 리본 및 이의 기재 필름
US7807247B1 (en) 1999-10-29 2010-10-05 Bromley Robert L Flexlock with headed pintle and conical buttressing
KR100767140B1 (ko) 1999-10-29 2007-10-15 삼소나이트 코포레이션 열가소성 펠릿 또는 이와 유사한 것으로 된 비직물구성품과 이 비직물 구성품의 엘리먼트를 직접 형성하는방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028023A (ja) * 1983-07-26 1985-02-13 Tdk Corp 磁気記録媒体
JPS60151830A (ja) * 1984-01-20 1985-08-09 Fuji Photo Film Co Ltd 磁気記録媒体
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
JPH0668824B2 (ja) * 1985-10-23 1994-08-31 帝人株式会社 磁気記録テ−プ
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
JPH0715742B2 (ja) * 1986-03-24 1995-02-22 富士写真フイルム株式会社 磁気記録媒体
US5051292A (en) * 1989-02-01 1991-09-24 Teijin Limited Biaxially oriented film of polyethylene-2,6-naphthalate

Also Published As

Publication number Publication date
EP0500018A2 (en) 1992-08-26
JPH04265514A (ja) 1992-09-21
US5316823A (en) 1994-05-31
DE69213275D1 (de) 1996-10-10
KR0159113B1 (ko) 1999-01-15
EP0500018A3 (en) 1993-05-19
EP0500018B1 (en) 1996-09-04
DE69213275T2 (de) 1997-01-23

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