JPS56130828A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS56130828A
JPS56130828A JP3429780A JP3429780A JPS56130828A JP S56130828 A JPS56130828 A JP S56130828A JP 3429780 A JP3429780 A JP 3429780A JP 3429780 A JP3429780 A JP 3429780A JP S56130828 A JPS56130828 A JP S56130828A
Authority
JP
Japan
Prior art keywords
magnetic
orientation
coating
phosphate
recording medium
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
JP3429780A
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 JP3429780A priority Critical patent/JPS56130828A/en
Publication of JPS56130828A publication Critical patent/JPS56130828A/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

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To remarkably increase the orientation, electromagnetic property and bonding force, by coating the magnetic paint mixing the phosphate consisting of alcohol, magnetic powder and curing component with a specific ratio, on the base. CONSTITUTION:The phosphate consisting of alcohol and alkyl radical are mixed. Further, the containing ratio of each phosphate to the sum of the both phosphates is taken as 25-75%, and the addition of ethylene oxide or propylene oxide is taken as <=5mol. Further, for example, after preparing the magnetic material with the composition shown in the example of execution, this magnetic paint is coated on the base and the magnetic recording medium is obtained according to conventional means. Thus, even if coating is made after leaving the magnetic substance for a long time, there is no difference of orientation and surface properties and others in comparison with quick coating, allowing to increase the orientation, electromagnetic property and bonding force remarkably.
JP3429780A 1980-03-18 1980-03-18 Magnetic recording medium Pending JPS56130828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3429780A JPS56130828A (en) 1980-03-18 1980-03-18 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3429780A JPS56130828A (en) 1980-03-18 1980-03-18 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS56130828A true JPS56130828A (en) 1981-10-14

Family

ID=12410217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3429780A Pending JPS56130828A (en) 1980-03-18 1980-03-18 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS56130828A (en)

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