JPS6439622A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6439622A
JPS6439622A JP19522087A JP19522087A JPS6439622A JP S6439622 A JPS6439622 A JP S6439622A JP 19522087 A JP19522087 A JP 19522087A JP 19522087 A JP19522087 A JP 19522087A JP S6439622 A JPS6439622 A JP S6439622A
Authority
JP
Japan
Prior art keywords
magnetic layer
recording medium
young
modulus
surface roughness
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
JP19522087A
Other languages
Japanese (ja)
Inventor
Fumihiro Tokunaga
Atsushi Nakagawa
Kazuo Hasumi
Toshio Kawamata
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP19522087A priority Critical patent/JPS6439622A/en
Publication of JPS6439622A publication Critical patent/JPS6439622A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve stability with age and durability by incorporating a polycarbonate polyurethane resin into a magnetic layer, specifying the Young's modulus thereof within a specific range and confining the surface roughness to <=0.05mum. CONSTITUTION:This magnetic recording medium is constituted by providing the magnetic layer dispersed with fine ferromagnetic powder in a binder on a nonmagnetic base. The polycarbonate polyurethane resin is incorporated at 30-60pts.wt. into this magnetic layer, a vinyl chloride/vinyl acetate resin at 15-35pts.wt. and polyisocyanate at 20-40pts.wt., by which the Young's modulus of the magnetic layer is kept within the 2X10<4>-50X10<4>kg/cm<2> range at -10-60 deg.C. The surface roughness is confined to the smoothness of <=0.05mum (0.25mm cut off value). The output is thereby improved and the self-adhesive strength at and under a high temp. and high humidity, coefft. of friction, powder dislodgment and still durability are simultaneously improved.
JP19522087A 1987-08-06 1987-08-06 Magnetic recording medium Pending JPS6439622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19522087A JPS6439622A (en) 1987-08-06 1987-08-06 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19522087A JPS6439622A (en) 1987-08-06 1987-08-06 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6439622A true JPS6439622A (en) 1989-02-09

Family

ID=16337463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19522087A Pending JPS6439622A (en) 1987-08-06 1987-08-06 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6439622A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619830A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS61222027A (en) * 1985-03-27 1986-10-02 Fuji Photo Film Co Ltd Magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619830A (en) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPS61222027A (en) * 1985-03-27 1986-10-02 Fuji Photo Film Co Ltd Magnetic recording medium

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