[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

KR930005012A - Magnetic recording media - Google Patents

Magnetic recording media Download PDF

Info

Publication number
KR930005012A
KR930005012A KR1019910015056A KR910015056A KR930005012A KR 930005012 A KR930005012 A KR 930005012A KR 1019910015056 A KR1019910015056 A KR 1019910015056A KR 910015056 A KR910015056 A KR 910015056A KR 930005012 A KR930005012 A KR 930005012A
Authority
KR
South Korea
Prior art keywords
magnetic recording
recording medium
carbon black
particle diameter
average particle
Prior art date
Application number
KR1019910015056A
Other languages
Korean (ko)
Other versions
KR940006847B1 (en
Inventor
최승규
Original Assignee
최준식
주식회사 에스. 케이. 씨.
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 최준식, 주식회사 에스. 케이. 씨. filed Critical 최준식
Priority to KR1019910015056A priority Critical patent/KR940006847B1/en
Publication of KR930005012A publication Critical patent/KR930005012A/en
Application granted granted Critical
Publication of KR940006847B1 publication Critical patent/KR940006847B1/en

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
    • G11B5/735—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
    • 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
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • 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

Landscapes

  • Magnetic Record Carriers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

내용 없음.No content.

Description

자기기록 매체Magnetic recording media

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

비자성 지지체의 일면에는 자성분, 바인더, 카본 블랙등을 포함하는 자성층을 형성시키고, 그 반대쪽면에는 백코팅층을 형성시킨 자기 기록매체에 있어서, 상기 백코팅층에 디-부틸 프탈레이트 용액의 흡유량의 100내지 200cc/100g이면서 평균 입경이 20내지30nm인 카본 블랙과 디-부틸 플탈레이트 용액의 흡유량이 80cc/100g이하이면서 평균 입경이 60내지 100nm인 카본 블랙을 포함시킨 것을 특징으로 하는 자기 기록 매체.In a magnetic recording medium having a magnetic layer comprising a magnetic component, a binder, carbon black, and the like formed on one surface of a nonmagnetic support, and a back coating layer formed on the opposite surface thereof, the oil absorption amount of the di-butyl phthalate solution in the back coating layer is 100. A magnetic recording medium comprising carbon black having an average particle diameter of 20 to 30 nm and a carbon particle having an average particle diameter of 60 to 100 nm while the oil absorption of the di-butyl phthalate solution is less than or equal to 80 cc / 100 g. 제1항에 있어서, 상기 디-부틸 플탈레이트 용액의 흡유량이 100내지 200cc/100g이면서 평균 입경이 20내지 30nm인 카본 블랙과 디-부틸 프탈레이트 용액의 흡유량이 80cc/100g이하이면서 평균 입경이 60내지 100nm인 카본 블랙의 혼합비가 중량비로서 1:9내지 5:5인 것을 특징으로 하는 자기 기록 매체.The oil absorption of the carbon black and di-butyl phthalate solution having an oil absorption amount of 100 to 200 cc / 100 g and an average particle diameter of 20 to 30 nm is 80 cc / 100 g or less and an average particle diameter of 60 to 100 nm. A magnetic recording medium having a mixing ratio of carbon black of 100 nm in a weight ratio of 1: 9 to 5: 5. 제1항에 있어서, 상기 백코팅층 내 상기 카본 블랙의 함유량이 바인더 100중량부에 대하여 50내지 20중량부인 것을 특징으로 하는 자기기록 매체.The magnetic recording medium according to claim 1, wherein the content of the carbon black in the back coating layer is 50 to 20 parts by weight based on 100 parts by weight of the binder. 제1항 내지 제3항중 어느 한 항에 있어서 상기 백코팅층의 두께가 0.5내지 1.5㎛인 것을 특징으로 하는 자기기록 매체.The magnetic recording medium according to any one of claims 1 to 3, wherein the back coating layer has a thickness of 0.5 to 1.5 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910015056A 1991-08-29 1991-08-29 Magnetic recording medium KR940006847B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910015056A KR940006847B1 (en) 1991-08-29 1991-08-29 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910015056A KR940006847B1 (en) 1991-08-29 1991-08-29 Magnetic recording medium

Publications (2)

Publication Number Publication Date
KR930005012A true KR930005012A (en) 1993-03-23
KR940006847B1 KR940006847B1 (en) 1994-07-28

Family

ID=19319325

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910015056A KR940006847B1 (en) 1991-08-29 1991-08-29 Magnetic recording medium

Country Status (1)

Country Link
KR (1) KR940006847B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100304013B1 (en) * 1994-12-26 2001-12-01 구광시 Method of manufacturing magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100304013B1 (en) * 1994-12-26 2001-12-01 구광시 Method of manufacturing magnetic recording medium

Also Published As

Publication number Publication date
KR940006847B1 (en) 1994-07-28

Similar Documents

Publication Publication Date Title
KR860008872A (en) Polyester film for metal thin film magnetic recording media
KR850002633A (en) Magnetic recording media
KR920001447A (en) Magnetic recording medium
KR900015076A (en) Magnetic recording media
KR850005663A (en) Magnetic coating composition and magnetic recording medium containing iron carbide
JPS57150132A (en) Magnetic recording medium
KR930005012A (en) Magnetic recording media
KR850002533A (en) Magnetic recording media
JPS57176533A (en) Magnetic recording medium
KR870011581A (en) Magnetic recording media
KR870000682A (en) Magnetic recording media
KR870009341A (en) Magnetic recording media
KR920015280A (en) Magnetic recording media
KR900008488A (en) Magnetic recording media
KR950034095A (en) Magnetic recording medium with back coating comprising multicomponent nonmagnetic particles
KR870001553A (en) Magnetic recording medium
KR920022209A (en) Elastic magnetic recording device with backing layer
KR840009163A (en) Magnetic recording media
KR930004939A (en) Magnetic recording media
KR920013277A (en) Magnetic recording media
KR960701435A (en) HIGH RECORDING DENSITY MAGNETIC RECORDING MEDIUM HAVING AN UNDERCOAT LAYER
KR920008680A (en) Magnetic recording media
KR920013278A (en) Magnetic recording media
KR950009554A (en) Preparation of Biaxially Oriented Polyester Film for Magnetic Recording Media
KR940002777A (en) Magnetic recording media

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050713

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee