KR930004939A - Magnetic recording media - Google Patents

Magnetic recording media Download PDF

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Publication number
KR930004939A
KR930004939A KR1019910013833A KR910013833A KR930004939A KR 930004939 A KR930004939 A KR 930004939A KR 1019910013833 A KR1019910013833 A KR 1019910013833A KR 910013833 A KR910013833 A KR 910013833A KR 930004939 A KR930004939 A KR 930004939A
Authority
KR
South Korea
Prior art keywords
magnetic recording
magnetic
carbon black
coating layer
recording medium
Prior art date
Application number
KR1019910013833A
Other languages
Korean (ko)
Other versions
KR950012364B1 (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 KR1019910013833A priority Critical patent/KR950012364B1/en
Publication of KR930004939A publication Critical patent/KR930004939A/en
Application granted granted Critical
Publication of KR950012364B1 publication Critical patent/KR950012364B1/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
    • G11B5/68—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

Abstract

내용 없음.No content.

Description

자기 기록 매체Magnetic recording media

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

Claims (5)

비자성 지지체의 한쪽면에는 자성물질을 포함하는 자성층을 형성시키고, 타측면에는 카본 블랙을 주성분으로 하는 비자성 미소분말을 수지등의 고분자 접착제로 분산, 흡착시킨 백코팅층을 형성시켜 제조되는 자기기록매체에 있어서, 상기 백코팅층이, 멜라민과 포름알데히드를 축합하여 제조된 입경 0.1 내지 5.0㎛인 구상의 입자를 카본블랙을 기준으로 하여 5 내지 50중량% 포함하는 것을 특징으로 하는 자기기록매체.Magnetic recording made by forming a magnetic layer containing a magnetic material on one side of the nonmagnetic support, and forming a back coating layer on which the non-magnetic micropowder mainly containing carbon black is dispersed and adsorbed with a polymer adhesive such as resin. The medium according to claim 1, wherein the back coating layer contains 5 to 50% by weight of spherical particles having a particle diameter of 0.1 to 5.0 µm prepared by condensing melamine and formaldehyde, based on carbon black. 제1항에 있어서, 상기 카본 블랙의 비표면적이 200㎡/g이하인 것을 특징으로 하는 자기기록매체.The magnetic recording medium of claim 1, wherein the specific surface area of the carbon black is 200 m 2 / g or less. 제1항에 있어서, 상기 구상입자의 첨가량이 카본 블랙을 기준으로 하여 10 내지 20중량%인 것을 특징으로 하는 자기기록매체.The magnetic recording medium of claim 1, wherein the amount of the spherical particles added is 10 to 20% by weight based on carbon black. 제1항에 있어서, 상기 백코팅층에 포함된 비자성물질의 수지물질에 대한 흡착량은 중량비로 1 : 2 내지 3 : 1인 것을 특징으로 하는 자기기록매체.The magnetic recording medium of claim 1, wherein the non-magnetic material contained in the back coating layer is adsorbed to the resin material in a weight ratio of 1: 2 to 3: 1. 제1항 내지 4항중 어느 한 항에 있어서, 상기 백코팅층의 두께가 0.3 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 0.3 to 2.0 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910013833A 1991-08-10 1991-08-10 Magnetic recording medium KR950012364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910013833A KR950012364B1 (en) 1991-08-10 1991-08-10 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910013833A KR950012364B1 (en) 1991-08-10 1991-08-10 Magnetic recording medium

Publications (2)

Publication Number Publication Date
KR930004939A true KR930004939A (en) 1993-03-23
KR950012364B1 KR950012364B1 (en) 1995-10-17

Family

ID=19318449

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910013833A KR950012364B1 (en) 1991-08-10 1991-08-10 Magnetic recording medium

Country Status (1)

Country Link
KR (1) KR950012364B1 (en)

Also Published As

Publication number Publication date
KR950012364B1 (en) 1995-10-17

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