JPS56130827A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS56130827A
JPS56130827A JP3291880A JP3291880A JPS56130827A JP S56130827 A JPS56130827 A JP S56130827A JP 3291880 A JP3291880 A JP 3291880A JP 3291880 A JP3291880 A JP 3291880A JP S56130827 A JPS56130827 A JP S56130827A
Authority
JP
Japan
Prior art keywords
magnetic
coating
recording medium
binder
bonding force
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP3291880A
Other languages
Japanese (ja)
Inventor
Masaharu Nishimatsu
Tadashi Nishimura
Hiroshi Kawahara
Masaji Funakoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP3291880A priority Critical patent/JPS56130827A/en
Publication of JPS56130827A publication Critical patent/JPS56130827A/en
Pending legal-status Critical Current

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
    • G11B5/68—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
    • G11B5/702—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 characterised by the bonding agent

Abstract

PURPOSE:To remarkably increase the bonding force of magnetic film without sacrifying the electromagnetic characteristics, by coating the magnetic paint mixing the phosphate consisting of alcohol, binder, magnetic powder and curing component with specific ratio to the base. CONSTITUTION:The phosphate consists of alkyl radical, and the addition of etylene oxide or propylene oxide is <5mol, and the binder is contained by 15-25pts.wt. to the magnetic powder. Further, for example, after adjusting the magnetic material with the composition shown in the example of execution, this magnetic paint is coated on the base to obtain the magnetic recording medium according to normal means. Thus, even if coating is made for the magnetic material after a long time, there is no difference from the orientation, surface property or other properties in comparison with quick coating, allowing to remarkably increase the bonding force of the magnetic film without sacrificing the electromagnetic property.
JP3291880A 1980-03-14 1980-03-14 Magnetic recording medium Pending JPS56130827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3291880A JPS56130827A (en) 1980-03-14 1980-03-14 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3291880A JPS56130827A (en) 1980-03-14 1980-03-14 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS56130827A true JPS56130827A (en) 1981-10-14

Family

ID=12372271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3291880A Pending JPS56130827A (en) 1980-03-14 1980-03-14 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56130827A (en)

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