GB1424708A - Method of forming a magnetic layer on a photographic film - Google Patents

Method of forming a magnetic layer on a photographic film

Info

Publication number
GB1424708A
GB1424708A GB2342373A GB2342373A GB1424708A GB 1424708 A GB1424708 A GB 1424708A GB 2342373 A GB2342373 A GB 2342373A GB 2342373 A GB2342373 A GB 2342373A GB 1424708 A GB1424708 A GB 1424708A
Authority
GB
United Kingdom
Prior art keywords
glycol
photographic film
magnetic layer
suspension
forming
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
GB2342373A
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
Publication of GB1424708A publication Critical patent/GB1424708A/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
    • G11B5/633—Record carriers characterised by the selection of the material of cinematographic films or slides with integral magnetic track
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Paints Or Removers (AREA)

Abstract

1424708 Magnetic coating FUJI PHOTO FILM CO Ltd 16 May 1973 [16 May 1972] 23423/73 Heading B2E [Also in Divisions G2 and G3] A magnetic layer is formed on a photographic film by applying a suspension of ferromagnetic powder to the backing layer of a polyethylene terephthalate support, the liquid content of the suspension being at least 70% by weight methyl ethyl ketone. The liquid may also comprise an alcohol (1-4C), ester ether, glycol ether, glycol acetate, an aromatic hydrocarbon or chlorinated hydrocarbon. The backing layer preferably comprises a cellulose ester e.g. cellulose acetate and a polyester e.g. a condensate of ethylene glycol, trimethylene glycol and terephthalic acid.
GB2342373A 1972-05-16 1973-05-16 Method of forming a magnetic layer on a photographic film Expired GB1424708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4845472A JPS4914125A (en) 1972-05-16 1972-05-16

Publications (1)

Publication Number Publication Date
GB1424708A true GB1424708A (en) 1976-02-11

Family

ID=12803780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2342373A Expired GB1424708A (en) 1972-05-16 1973-05-16 Method of forming a magnetic layer on a photographic film

Country Status (4)

Country Link
JP (1) JPS4914125A (en)
DE (1) DE2324507A1 (en)
FR (1) FR2184927B1 (en)
GB (1) GB1424708A (en)

Also Published As

Publication number Publication date
FR2184927A1 (en) 1973-12-28
FR2184927B1 (en) 1976-05-28
JPS4914125A (en) 1974-02-07
DE2324507A1 (en) 1973-11-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee