KR930016945A - Magnetic recording medium - Google Patents

Magnetic recording medium Download PDF

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Publication number
KR930016945A
KR930016945A KR1019920001225A KR920001225A KR930016945A KR 930016945 A KR930016945 A KR 930016945A KR 1019920001225 A KR1019920001225 A KR 1019920001225A KR 920001225 A KR920001225 A KR 920001225A KR 930016945 A KR930016945 A KR 930016945A
Authority
KR
South Korea
Prior art keywords
recording medium
magnetic recording
coating layer
back coating
silicone acrylic
Prior art date
Application number
KR1019920001225A
Other languages
Korean (ko)
Other versions
KR950008666B1 (en
Inventor
정승재
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 KR1019920001225A priority Critical patent/KR950008666B1/en
Publication of KR930016945A publication Critical patent/KR930016945A/en
Application granted granted Critical
Publication of KR950008666B1 publication Critical patent/KR950008666B1/en

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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
    • G11B5/735—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
    • G11B5/73—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
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • G11B5/73915—Silicon compound based coating
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

본 발명은 오염발생, 드롭아웃의 증가가 없으며 주행안정성 및 전자 특성이 개선된 자기기록매체에 관한 것이다.The present invention relates to a magnetic recording medium having no pollution, no increase in dropout, and improved driving stability and electronic characteristics.

비자성 지지체의 한쪽면에는 자성분을 포함하는 자성층을 형성시키고, 그 반대쪽면에는 백코팅층을 형성시킨 자기기록매체에 있어서, 상기 백코팅층이 하기 구조식의 실리콘 아크릴계 중합체를 포함하는 것을 특징으로 한다.In a magnetic recording medium having a magnetic layer containing a magnetic component on one side of a nonmagnetic support and a back coating layer on the opposite side, the back coating layer comprises a silicone acrylic polymer of the following structural formula.

즉, 종래의 백코팅층에 사용하던 카본블랙과 무기화합물을 분말대신 상기의 실리콘 아크릴계 대전 방지성 윤활제를 도포함으로써, 무기입자 탈락으로 인한 오염 및 드롭아웃의 증가를 없애고 특히 플라스틱 가이드를 사용시에도 주행불량이 없고 백코팅층이 요철 전사에 의한 악영향을 배제시켜 전자 특성을 향상시킬 수 있었다.That is, by applying the silicone acrylic antistatic lubricant to the carbon black and the inorganic compound used in the conventional back coating layer instead of the powder, it eliminates the increase of contamination and dropout due to the dropping of the inorganic particles, and in particular, even when using a plastic guide. Without this, the back coating layer could improve the electronic properties by excluding the adverse effect of uneven transfer.

Description

자기기록매체Magnetic recording medium

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

Claims (5)

비자성 지지체의 한 쪽면에는 자성분을 포함하는 자성층을 형성시키고, 그 반대쪽면에는 형성시킨 자가기록매체에 있어서, 상기 백코팅층이 하기 구조식의 실리콘 아크릴계 중합체를 포함하는 것을 특징으로 하는 자기기록매체.A magnetic recording medium comprising a magnetic component is formed on one side of a nonmagnetic support, and a magnetic recording medium is formed on the other side of the nonmagnetic support, wherein the back coating layer comprises a silicone acrylic polymer of the following structural formula. 제1항에 있어서, 상기 실리콘 아크릴계 중합체가 2〈x〈200, 2〈y〈200, 4〈n〈150인 것을 특징으로 하는 자기기록매체.The magnetic recording medium of claim 1, wherein the silicone acrylic polymer has 2 <x <200, 2 <y <200, and 4 <n <150. 제2항에 있어서, 상기 실리콘 아크릴계 중합체의 분자량이 30,000 내지 370,000인 것을 특징으로 하는 자기기록매체.3. The magnetic recording medium of claim 2, wherein the silicone acrylic polymer has a molecular weight of 30,000 to 370,000. 제1항에 있어서, 상기 백코팅층이 경화제 0.1 내지 20.0중량%를 더욱 포함하는 것을 특징으로 하는 자기기록매체.The magnetic recording medium of claim 1, wherein the back coating layer further comprises 0.1 to 20.0 wt% of a curing agent. 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 백코팅층의 두께가 0.1 내지 2.0㎛인 것을 특징으로 하는 자기기록매체.The magnetic recording medium according to any one of claims 1 to 4, wherein the back coating layer has a thickness of 0.1 to 2.0 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920001225A 1992-01-28 1992-01-28 Magmetic recording mediung KR950008666B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920001225A KR950008666B1 (en) 1992-01-28 1992-01-28 Magmetic recording mediung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920001225A KR950008666B1 (en) 1992-01-28 1992-01-28 Magmetic recording mediung

Publications (2)

Publication Number Publication Date
KR930016945A true KR930016945A (en) 1993-08-30
KR950008666B1 KR950008666B1 (en) 1995-08-04

Family

ID=19328391

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920001225A KR950008666B1 (en) 1992-01-28 1992-01-28 Magmetic recording mediung

Country Status (1)

Country Link
KR (1) KR950008666B1 (en)

Also Published As

Publication number Publication date
KR950008666B1 (en) 1995-08-04

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