KR930001138A - 자기 기록 매체용 폴리에스테르 필름, 그의 제조 방법 및 자기 기록 매체 - Google Patents

자기 기록 매체용 폴리에스테르 필름, 그의 제조 방법 및 자기 기록 매체 Download PDF

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Publication number
KR930001138A
KR930001138A KR1019920011370A KR920011370A KR930001138A KR 930001138 A KR930001138 A KR 930001138A KR 1019920011370 A KR1019920011370 A KR 1019920011370A KR 920011370 A KR920011370 A KR 920011370A KR 930001138 A KR930001138 A KR 930001138A
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South Korea
Prior art keywords
film
magnetic recording
recording medium
less
binder resin
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KR1019920011370A
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English (en)
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KR0153240B1 (ko
Inventor
히데시 구리하라
쓰요시 나가이
사다요시 미우라
Original Assignee
이따가끼 히로시
데이진 가부시끼가이샤
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Publication of KR930001138A publication Critical patent/KR930001138A/ko
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Publication of KR0153240B1 publication Critical patent/KR0153240B1/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • 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
    • 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.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • 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.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • 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.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer
    • 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]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

Landscapes

  • Laminated Bodies (AREA)
  • Magnetic Record Carriers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Paints Or Removers (AREA)

Abstract

내용 없음

Description

자기 기록 매체용 폴리에스테르 필름, 그의 제조 방법 및 자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 필름 주행성을 평가하기 위한 동적마찰계수를 측정하는 장치의 도면이다.

Claims (18)

  1. 필름의 한쪽 면 또는 양쪽 면의 표면상에, (i)0.15㎛이하의 평균높이를 갖는 미소 돌기가 1.0 ×104내지 1.0×108개/㎟ 존재하며, (ⅱ)미소 돌기는 표면이 바인더 수지로 코팅된 미세 입자로 구성되며, (ⅲ)미소 돌기는 필름 표면상에 바인더 수지에 의해 부착되고,(ⅳ)바인더 수지는 미소 돌기가 존재하는 필름 표면의 부근 이외의 필름 표면에는 실질적으로 존재하지 않으며, (ⅴ)필름표면의 평균표면조도(Ra)는 0.001 내지 0.01㎛인 자기기록 매체용 폴리에스테르 필름.
  2. 제1항에 있어서, 필름 표면상의 미소 돌기의 평균 높이가 0.1㎛ 이하인 필름.
  3. 제1항에 있어서, 필름 표면상의 미소 돌기가 1 ×105내지 8 ×107개/㎟으로 존재하는 필름.
  4. 제1항에 있어서,미소돌기내의 미세입자가 미세입자의 입경의 상태 표준 편차 값이 0.5 이하인 것과 같은 필름.
  5. 제1항에 있어서, 필름 표면의 평균 표면 조도(Ra)가 0.001 내지 0.007㎛인 필름.
  6. 제1항에 있어서, 미소 돌기는 평균입경 0.1㎛ 이하이며, 표면이 바인더 수지로 코팅되어 있으며 이에 의해 필름 표면상에 부착되는 미세입자로 구성된 필름.
  7. 제1항에 있어서, 바인더 수지가 필름에 대해 양호한 접착성을 갖는 필름.
  8. 제1항에 있어서, 바인더 수지는 80 내지 240℃의 연화점을 갖는 필름.
  9. 제1항의(ⅰ) 내지(ⅴ)의 특징을 갖는 플리에스테르 필름의 표면상에 강자상 금속 박막이 형성되어 있는 자기기록매체.
  10. 강자성 금속 박막이 0.01 내지 0.6㎛의 두께를 갖는 자기기록매체.
  11. 제9항에 있어서, 강자성 금속박막이 코발트 또는 코발트 합금으로 구성된 자기기록매체.
  12. 폴리에스테르 필름의 한쪽 면 또는 양쪽 면의 표면상에, 쉽게 휘발되는 액체 매질내에 바인더 수지로 표면이 코팅된 미세입자가 균일하게 분산되어 있는 분산액을 도포하고, 생성 필름을 건조시킨 다음, 필요하다면 생성 필름을 연신처리 또는 열-고정처리하는 제1항의 폴리에스테르 필름의 제조방법.
  13. 제12항에 있어서, 미세입자가 0.1㎛ 이하의 평균입경을 갖는 필름의 제조방법.
  14. 제12항에 있어서, 액체 매질이 바인더 수지 및 폴리에스테르를 용해시키지 않거나 미약하게 용해시키는 필름의 제조방법.
  15. 제12항에 있어서, 액체 매질이 30 내지 240℃의 비점을 갖는 필름의 제조방법.
  16. 제12항에 있어서, 분산액이 30중량％ 이하의 고체 성분 농도를 갖는 필름의 제조방법.
  17. 제12항에 있어서, 분산액이 계면 활성제를 더 함유하는 필름의 제조방법.
  18. 제12항에 있어서, 폴리에스테르 필름의 표면위에 분산액을 도포하고, 건조시킨 후에, 생성필름에 연신처리 또는 열-고정처리를 더 하는 필름의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920011370A 1991-06-28 1992-06-27 자기기록매체용 폴리에스테르 필름, 그의 제조방법 및 자기기록매체 KR0153240B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3183913A JP2777003B2 (ja) 1991-06-28 1991-06-28 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
JP91-183913 1991-06-28

Publications (2)

Publication Number Publication Date
KR930001138A true KR930001138A (ko) 1993-01-16
KR0153240B1 KR0153240B1 (ko) 1998-12-15

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KR1019920011370A KR0153240B1 (ko) 1991-06-28 1992-06-27 자기기록매체용 폴리에스테르 필름, 그의 제조방법 및 자기기록매체

Country Status (5)

Country Link
US (2) US5496618A (ko)
EP (1) EP0520504B1 (ko)
JP (1) JP2777003B2 (ko)
KR (1) KR0153240B1 (ko)
DE (1) DE69202823T2 (ko)

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Also Published As

Publication number Publication date
KR0153240B1 (ko) 1998-12-15
JP2777003B2 (ja) 1998-07-16
US5496618A (en) 1996-03-05
EP0520504A1 (en) 1992-12-30
JPH054314A (ja) 1993-01-14
EP0520504B1 (en) 1995-06-07
DE69202823D1 (de) 1995-07-13
US5601768A (en) 1997-02-11
DE69202823T2 (de) 1995-10-12

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