JPS6478425A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6478425A
JPS6478425A JP23568587A JP23568587A JPS6478425A JP S6478425 A JPS6478425 A JP S6478425A JP 23568587 A JP23568587 A JP 23568587A JP 23568587 A JP23568587 A JP 23568587A JP S6478425 A JPS6478425 A JP S6478425A
Authority
JP
Japan
Prior art keywords
edge parts
recording medium
magnetic recording
hardness
heating treatment
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
JP23568587A
Other languages
Japanese (ja)
Inventor
Noboru Isoe
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP23568587A priority Critical patent/JPS6478425A/en
Publication of JPS6478425A publication Critical patent/JPS6478425A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To sufficiently increase the mechanical strength of the both side edge parts of a magnetic tape or the like which is formed particularly thin and to effectively suppress the one-side elongation of a magnetic recording medium and the deformation in the edge parts thereof by forming the both side edge parts of the long-sized magnetic recording medium to the hardness higher than the hardness in the entire transverse part except the edge parts. CONSTITUTION:The both side edge parts 3 are formed to the hardness higher than the hardness in the entire transverse part except the edge parts 3. Hardening of the edge parts is executed by a method of slitting the raw film of the magnetic recording medium A formed with a magnetic layer 2 on a plastic substrate 1 by means of an ordinary cutting blade and taking up the cut film, then subjecting the film to a plasma heating treatment, IR heating treatment and laser heating treatment, etc., thereby selectively hardening the edge parts 3. The one-side elongation and the deformation in the edge parts of the magnetic recording medium which is increased in the mechanical strength in the edge parts and is formed particularly thin are effectively prevented at the time of traveling.
JP23568587A 1987-09-19 1987-09-19 Magnetic recording medium Pending JPS6478425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23568587A JPS6478425A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23568587A JPS6478425A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6478425A true JPS6478425A (en) 1989-03-23

Family

ID=16989693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23568587A Pending JPS6478425A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6478425A (en)

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