KR860008022A - 자기 기록재용 폴리에스테르 베이스 필름 - Google Patents

자기 기록재용 폴리에스테르 베이스 필름 Download PDF

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Publication number
KR860008022A
KR860008022A KR1019860002971A KR860002971A KR860008022A KR 860008022 A KR860008022 A KR 860008022A KR 1019860002971 A KR1019860002971 A KR 1019860002971A KR 860002971 A KR860002971 A KR 860002971A KR 860008022 A KR860008022 A KR 860008022A
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film
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longitudinal direction
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KR1019860002971A
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KR910006149B1 (ko
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히데오 가또오
히로시 도미따
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데이진 가부시끼가이샤
나까오 마스로오
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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.]

Abstract

내용 없음

Description

자기 기록재용 폴리에스테르 베이스 필름
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예 및 비교예의 필름 표면의 돌기분포 곡선임.

Claims (13)

  1. 표면상에 많은 미세돌기를 갖는 2축 연신된 폴리에스테르 베이스필름으로서 다음 성질을 가짐을 특징으로 하는 필름:
    (a) 상기한 필름의 표면상에 20돌기/mm2이상인 구역에서 측정한 돌기의 수(y/mm2)와 돌기의 높이(x: ㎛로 표시)간의 관계를 나타내는 분포곡선에서, 돌기높이(x)가 최고치보다 더 큰 분포곡선의 부분이 직선 log10y=-18x+3.7과 교차하고,
    (b) 필름 표면상에 돌기의 수(y)가 20/mm2일 때, 높이(x)가 0.13㎛ 이상인 돌기가 존재하지 않고,
    (c) 상기한 필름의 표면거칠기(Ra)가 0.012㎛이하이고,
    (d) 상기한 필름의 종방향의 영률이 650kg/mm2이상이고,
    (e) 무부하하에 70℃에서 1시간 열처리될 때, 상기한 필름의 종방향의 열수축이 0.1% 이하이다.
  2. 제1항에 있어서, 필름표면상에 돌기의 수(y)가 20/mm2일 때, 필름은 높이(x)가 0.10㎛ 이상인 돌기를 함유하지 않음을 특징으로 하는 필름.
  3. 제1항에 있어서, 표면거칠기(Ra)가 0.010미크로미터 이하인 필름.
  4. 제3항에 있어서, 표면거칠기(Ra)가 0.004~0.008미크로미터 이하인 필름.
  5. 제3항에 있어서, 종방향의 영률이 700kg/mm2이상인 필름.
  6. 제5항에 있어서, 종방향의 영률이 750kg/mm2이상인 필름.
  7. 제1항에 있어서, 종방향의 열수축이 0.06% 이하인 필름.
  8. 제7항에 있어서, 종방향의 열수축이 0.03% 이하인 필름.
  9. 제1항에 있어서, 종방향으로 4.1~5.5배까지, 그리고 횡방향으로 3.0~3.8배까지 연신된 필름.
  10. 제1항에 있어서, 폴리에스테르가 폴리에틸렌 테레프탈레이트인 필름.
  11. 제1항에 있어서, 내부에 분산된 불활성 고체 미립자를 함유하는 필름.
  12. 제11항에 있어서, 불활성 고체 미립자가 2산화규소, 2산화티타늄 또는 탄산칼슘인 필름.
  13. 제1항에 있어서, 표면상에 자기 기록층을 갖는 필름.
    ※ 참고사항: 최초출원 내용에 의하여 공개하는 것임.
KR1019860002971A 1985-04-17 1986-04-17 자기 기록재용 폴리에스테르 베이스 필름 KR910006149B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP85-80274 1985-04-17
JP60080274A JPS61239930A (ja) 1985-04-17 1985-04-17 磁気記録用ポリエステルフイルム
JP80274 1985-04-17

Publications (2)

Publication Number Publication Date
KR860008022A true KR860008022A (ko) 1986-11-10
KR910006149B1 KR910006149B1 (ko) 1991-08-16

Family

ID=13713698

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860002971A KR910006149B1 (ko) 1985-04-17 1986-04-17 자기 기록재용 폴리에스테르 베이스 필름

Country Status (5)

Country Link
US (1) US4720412A (ko)
EP (1) EP0199244B1 (ko)
JP (1) JPS61239930A (ko)
KR (1) KR910006149B1 (ko)
DE (1) DE3677245D1 (ko)

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JPH0256721A (ja) * 1988-07-14 1990-02-26 Konica Corp 磁気記録媒体
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JP2826235B2 (ja) * 1992-08-18 1998-11-18 富士写真フイルム株式会社 磁気記録媒体
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FR2548958B1 (fr) * 1983-07-13 1986-03-21 Rhone Poulenc Films Films polyesters composites

Also Published As

Publication number Publication date
EP0199244A3 (en) 1989-02-08
JPH0371013B2 (ko) 1991-11-11
EP0199244B1 (en) 1991-01-30
DE3677245D1 (de) 1991-03-07
JPS61239930A (ja) 1986-10-25
EP0199244A2 (en) 1986-10-29
US4720412A (en) 1988-01-19
KR910006149B1 (ko) 1991-08-16

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