GB868346A - Improvements in or relating to magnetic recording tape - Google Patents

Improvements in or relating to magnetic recording tape

Info

Publication number
GB868346A
GB868346A GB29959/59A GB2995959A GB868346A GB 868346 A GB868346 A GB 868346A GB 29959/59 A GB29959/59 A GB 29959/59A GB 2995959 A GB2995959 A GB 2995959A GB 868346 A GB868346 A GB 868346A
Authority
GB
United Kingdom
Prior art keywords
iron
magnetic
recording tape
sept
nickel
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
GB29959/59A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB868346A publication Critical patent/GB868346A/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
    • G11B5/71—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 lubricant

Abstract

868,346. Magnetic structures. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 2, 1959 [Sept. 5, 1958], No. 29959/59. Class 38 (2). To reduce friction and the accumulation of spurious electrostatic charges on a magnetic recording tape, the magnetic coating material which may include ferric oxide, iron, nickel-iron or nickel-cobalt-iron also contains sufficient molybdenum di-sulphide to provide at least 1 gm. per 12 m.<SP>2</SP> of the finished coating. Alternatively, this lubricant may be applied as a super-coating to a normal magnetic layer. The base is typically of synthetic plastic film with high intrinsic electrical resistivity. The molybdenum disulphide reduces the requisite tapedriving tension to below the level at which " slip-stick " at the heads causes spurious noise signals.
GB29959/59A 1958-09-05 1959-09-02 Improvements in or relating to magnetic recording tape Expired GB868346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL868346X 1958-09-05

Publications (1)

Publication Number Publication Date
GB868346A true GB868346A (en) 1961-05-17

Family

ID=19849328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29959/59A Expired GB868346A (en) 1958-09-05 1959-09-02 Improvements in or relating to magnetic recording tape

Country Status (1)

Country Link
GB (1) GB868346A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205092A (en) * 1962-02-20 1965-09-07 Geigy Chem Corp Magnetic tape having improved antistatic properties
US3423233A (en) * 1964-01-27 1969-01-21 Fuji Photo Film Co Ltd Magnetic recording element
US3476596A (en) * 1966-12-28 1969-11-04 Eastman Kodak Co Magnetic tape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205092A (en) * 1962-02-20 1965-09-07 Geigy Chem Corp Magnetic tape having improved antistatic properties
US3423233A (en) * 1964-01-27 1969-01-21 Fuji Photo Film Co Ltd Magnetic recording element
US3476596A (en) * 1966-12-28 1969-11-04 Eastman Kodak Co Magnetic tape

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