JPS5342707A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5342707A
JPS5342707A JP11602676A JP11602676A JPS5342707A JP S5342707 A JPS5342707 A JP S5342707A JP 11602676 A JP11602676 A JP 11602676A JP 11602676 A JP11602676 A JP 11602676A JP S5342707 A JPS5342707 A JP S5342707A
Authority
JP
Japan
Prior art keywords
magnetic recording
recording medium
base
layer
active agent
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
JP11602676A
Other languages
Japanese (ja)
Other versions
JPS6037973B2 (en
Inventor
Nobutaka Yamaguchi
Satoru Takayama
Masaaki Fujiyama
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 JP51116026A priority Critical patent/JPS6037973B2/en
Priority to DE19772743916 priority patent/DE2743916A1/en
Publication of JPS5342707A publication Critical patent/JPS5342707A/en
Priority to US05/945,258 priority patent/US4202927A/en
Publication of JPS6037973B2 publication Critical patent/JPS6037973B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73929—Polyester substrates, e.g. polyethylene terephthalate comprising naphthalene ring compounds, e.g. polyethylene naphthalate substrates

Landscapes

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

Abstract

PURPOSE: To improve surface activity of the base, by forming a layer of a cationic surface active agent on the surface of the video tape base which has a specified magnetic recording layer.
COPYRIGHT: (C)1978,JPO&Japio
JP51116026A 1976-09-29 1976-09-29 magnetic recording medium Expired JPS6037973B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP51116026A JPS6037973B2 (en) 1976-09-29 1976-09-29 magnetic recording medium
DE19772743916 DE2743916A1 (en) 1976-09-29 1977-09-29 Magnetic recording material, esp. for video tapes - comprises support, magnetic layer and cationic surfactant backing layer
US05/945,258 US4202927A (en) 1976-09-29 1978-09-25 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51116026A JPS6037973B2 (en) 1976-09-29 1976-09-29 magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5342707A true JPS5342707A (en) 1978-04-18
JPS6037973B2 JPS6037973B2 (en) 1985-08-29

Family

ID=14676926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51116026A Expired JPS6037973B2 (en) 1976-09-29 1976-09-29 magnetic recording medium

Country Status (2)

Country Link
JP (1) JPS6037973B2 (en)
DE (1) DE2743916A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891528A (en) * 1981-11-24 1983-05-31 Hitachi Maxell Ltd Magnetic recording medium
EP0090499B1 (en) * 1982-03-30 1989-05-24 Toray Industries, Inc. Magnetic recording medium
JPS5979431A (en) * 1982-10-29 1984-05-08 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0512985Y2 (en) * 1986-02-06 1993-04-06
NL8601934A (en) * 1986-07-26 1988-02-16 Stamicarbon TAPE OF A PLASTIC WITH HIGH ELASTICITY MODULUS WHICH IS COATED AND A METHOD OF MANUFACTURING THE SAME.
JPH09129461A (en) * 1995-10-24 1997-05-16 Samsung Electro Mech Co Ltd Focus unit coupling device for flyback transformer

Also Published As

Publication number Publication date
JPS6037973B2 (en) 1985-08-29
DE2743916A1 (en) 1978-03-30

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