GB939727A - Improvements in and relating to magnetic recording media - Google Patents

Improvements in and relating to magnetic recording media

Info

Publication number
GB939727A
GB939727A GB302160A GB302160A GB939727A GB 939727 A GB939727 A GB 939727A GB 302160 A GB302160 A GB 302160A GB 302160 A GB302160 A GB 302160A GB 939727 A GB939727 A GB 939727A
Authority
GB
United Kingdom
Prior art keywords
magnetic
layer
smooth surface
magnetic recording
relating
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.)
Expired
Application number
GB302160A
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.)
Feldmuehle AG
Original Assignee
Feldmuehle AG
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 Feldmuehle AG filed Critical Feldmuehle AG
Publication of GB939727A publication Critical patent/GB939727A/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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)

Abstract

939,727. Magnetic structures. FELDMUHLE A.G. Jan. 27, 1960 [Jan. 30, 1959], No. 3021/60. Class 38 (2). A magnetic recording medium comprises a base having a rough surface (e.g. paper) on which is cast-coated a non-magnetizable layer to provide a smooth surface, a magnetizable layer being then cast-coated on to this smooth surface to provide a magnetic layer having a uniform thickness and a smooth surface. The non- magnetizable layer may include a solution or dispersion of synthetic resin and starch or casein, and these substances may be included in the magnetic layer which also includes magnetic particles. Glossy art paper and textile fabrics are mentioned as constituting base substances.
GB302160A 1959-01-30 1960-01-27 Improvements in and relating to magnetic recording media Expired GB939727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF27602A DE1101001B (en) 1959-01-30 1959-01-30 Process for the production of tape-shaped magnetogram carriers

Publications (1)

Publication Number Publication Date
GB939727A true GB939727A (en) 1963-10-16

Family

ID=7092518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB302160A Expired GB939727A (en) 1959-01-30 1960-01-27 Improvements in and relating to magnetic recording media

Country Status (2)

Country Link
DE (1) DE1101001B (en)
GB (1) GB939727A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE637642C (en) * 1934-11-29 1936-11-02 Aeg Carrier track for magnetizable phonetic transcription carriers with powdery application
DE700696C (en) * 1938-07-23 1940-12-27 I G Farbenindustrie Akt Ges Process for the production of phonetic carriers
CH266143A (en) * 1948-01-26 1950-01-15 Trust Daphne Investment Tr Reg Sound carriers for magnetic sound recordings.
FR1007387A (en) * 1949-12-23 1952-05-05 Manufacturing process of magnetic tapes for sound recordings
CH296052A (en) * 1950-10-26 1954-01-31 Ericsson Telefon Ab L M Sound carriers for the magnetic recording and reproduction of sounds.

Also Published As

Publication number Publication date
DE1101001B (en) 1961-03-02

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