JPS55142415A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS55142415A
JPS55142415A JP5041779A JP5041779A JPS55142415A JP S55142415 A JPS55142415 A JP S55142415A JP 5041779 A JP5041779 A JP 5041779A JP 5041779 A JP5041779 A JP 5041779A JP S55142415 A JPS55142415 A JP S55142415A
Authority
JP
Japan
Prior art keywords
layer
magnetic
protecting layer
magnetic recording
nitril
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
JP5041779A
Other languages
Japanese (ja)
Inventor
Kazuto Karashima
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 JP5041779A priority Critical patent/JPS55142415A/en
Publication of JPS55142415A publication Critical patent/JPS55142415A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To improve the durability of magnetic recording media by providing the protecting layer consisting of cellulosic resin, nitril-butadiene rubber and polyisocyanate of low molecular weight, on the surface of magnetic layer.
CONSTITUTION: On the mold release layer 2 formed on the film 1 such as plyester, the protecting layer paint mixing a certain amount of cellulosic resin such as nitrocellulose, nitril-butadiene rubber and polyisocyanate of low molecular weight, is coated to form the protecting layer 3 with drying. The magnetic substance layer 4 is formed on the protecting layer 3 to constitute the copying magnetic sheet, it is laminated on the board 5 such as polyvinyl chloride so that the magnetic layer 4 is in contact with the board 5, and after pressing, the film 1 is peeled. Thus, suitable degree of elasticity is given to the protecting layer 3 and the magnetic recording media durable for a long time can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP5041779A 1979-04-23 1979-04-23 Magnetic recording medium Pending JPS55142415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5041779A JPS55142415A (en) 1979-04-23 1979-04-23 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5041779A JPS55142415A (en) 1979-04-23 1979-04-23 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS55142415A true JPS55142415A (en) 1980-11-07

Family

ID=12858278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5041779A Pending JPS55142415A (en) 1979-04-23 1979-04-23 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS55142415A (en)

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