JPS6486318A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS6486318A
JPS6486318A JP24267187A JP24267187A JPS6486318A JP S6486318 A JPS6486318 A JP S6486318A JP 24267187 A JP24267187 A JP 24267187A JP 24267187 A JP24267187 A JP 24267187A JP S6486318 A JPS6486318 A JP S6486318A
Authority
JP
Japan
Prior art keywords
calender
uniform
calender rolls
rolls
heating
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.)
Granted
Application number
JP24267187A
Other languages
Japanese (ja)
Other versions
JPH0827937B2 (en
Inventor
Makoto Yoshimura
Shinichi Funahashi
Keiji Tanaka
Noriaki Miyake
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 JP62242671A priority Critical patent/JPH0827937B2/en
Publication of JPS6486318A publication Critical patent/JPS6486318A/en
Publication of JPH0827937B2 publication Critical patent/JPH0827937B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To provide the titled medium which is uniform in the smoothness in the transverse direction of the surface of a magnetic layer on a base and has uniform surface characteristics by enclosing a calender device by a heating chamber and heating the atmosphere, thereby heating plural calender rolls. CONSTITUTION:The calender device 1 is housed in the heating chamber 16 and the cylindrical calender rolls 3 and drawout rolls 4 are enclosed by a heat insulating member 8. Panel heaters 7 are disposed on the inner side of the heat insulating member 8 and are heated properly to a prescribed temp. The calender rolls 3 are heated from the circumferences thereof, by which the temp. distributions in the axial line directions are uniformized. The increase in the change rate of the outside diameter by the thermal expansion in the central part as compared to the end parts of the calender rolls and the consequent deformation of said part to a crown shape are, therefore, obviated. The magnetic substrate which has the uniform smoothness on the surface of the magnetic layer on the base, is free from wrinkles and has the good surface characteristics is thereby obtd.
JP62242671A 1987-09-29 1987-09-29 Method of manufacturing magnetic recording medium Expired - Lifetime JPH0827937B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242671A JPH0827937B2 (en) 1987-09-29 1987-09-29 Method of manufacturing magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242671A JPH0827937B2 (en) 1987-09-29 1987-09-29 Method of manufacturing magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS6486318A true JPS6486318A (en) 1989-03-31
JPH0827937B2 JPH0827937B2 (en) 1996-03-21

Family

ID=17092504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242671A Expired - Lifetime JPH0827937B2 (en) 1987-09-29 1987-09-29 Method of manufacturing magnetic recording medium

Country Status (1)

Country Link
JP (1) JPH0827937B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930246A (en) * 1982-08-12 1984-02-17 Fuji Photo Film Co Ltd Surface smoothing device of magnetic recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930246A (en) * 1982-08-12 1984-02-17 Fuji Photo Film Co Ltd Surface smoothing device of magnetic recording medium

Also Published As

Publication number Publication date
JPH0827937B2 (en) 1996-03-21

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