JPS55160329A - Magnetic disk coating - Google Patents

Magnetic disk coating

Info

Publication number
JPS55160329A
JPS55160329A JP4069679A JP4069679A JPS55160329A JP S55160329 A JPS55160329 A JP S55160329A JP 4069679 A JP4069679 A JP 4069679A JP 4069679 A JP4069679 A JP 4069679A JP S55160329 A JPS55160329 A JP S55160329A
Authority
JP
Japan
Prior art keywords
coating
lubricant
magnetic disk
magnetic
volume
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
JP4069679A
Other languages
Japanese (ja)
Inventor
Shoji Ishida
Mitsuru Hamada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4069679A priority Critical patent/JPS55160329A/en
Publication of JPS55160329A publication Critical patent/JPS55160329A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve the durability of a coating on a magnetic disk applied with a lubricant on its surface, by making it easy for the coating surface to fit the lubricant by specifying the range of the proportion by volume of a powder component in the magnetic coating.
CONSTITUTION: As for a magnetic disk applied with a lubricant on its surface, the proportion by volume of a powder component such as γFe2O3 and αFe2O3 in the magnetic coating is specified between 25W40% so as to improve the holding characteristics of the coating surface to the lubricant which does not get to fit the magnetic coating chemically. Namely, when the volume rate of the powder component is fixed at between 25W40%, it is made easier for a liquid substance for the lubricant to intrude along the boundary between the powder and resin, so that the durability of the coating will be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP4069679A 1979-04-04 1979-04-04 Magnetic disk coating Pending JPS55160329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4069679A JPS55160329A (en) 1979-04-04 1979-04-04 Magnetic disk coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4069679A JPS55160329A (en) 1979-04-04 1979-04-04 Magnetic disk coating

Publications (1)

Publication Number Publication Date
JPS55160329A true JPS55160329A (en) 1980-12-13

Family

ID=12587712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4069679A Pending JPS55160329A (en) 1979-04-04 1979-04-04 Magnetic disk coating

Country Status (1)

Country Link
JP (1) JPS55160329A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk
JPS6482328A (en) * 1987-09-24 1989-03-28 Hitachi Maxell Magnetic disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk
JPH056736B2 (en) * 1982-11-15 1993-01-27 Hitachi Ltd
JPS6482328A (en) * 1987-09-24 1989-03-28 Hitachi Maxell Magnetic disk

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