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GB2001283A - Electrographic recording device and method - Google Patents

Electrographic recording device and method

Info

Publication number
GB2001283A
GB2001283A GB787828930A GB7828930A GB2001283A GB 2001283 A GB2001283 A GB 2001283A GB 787828930 A GB787828930 A GB 787828930A GB 7828930 A GB7828930 A GB 7828930A GB 2001283 A GB2001283 A GB 2001283A
Authority
GB
United Kingdom
Prior art keywords
developer
coupler
base
electrode
pattern
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.)
Withdrawn
Application number
GB787828930A
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.)
ISSEC LAB PHYS CHIM APPL
KDP Keller Dorian Papiers SA
Original Assignee
ISSEC LAB PHYS CHIM APPL
KDP Keller Dorian Papiers SA
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 ISSEC LAB PHYS CHIM APPL, KDP Keller Dorian Papiers SA filed Critical ISSEC LAB PHYS CHIM APPL
Publication of GB2001283A publication Critical patent/GB2001283A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/20—Duplicating or marking methods; Sheet materials for use therein using electric current

Landscapes

  • Photoreceptors In Electrophotography (AREA)
  • Duplication Or Marking (AREA)
  • Color Printing (AREA)

Abstract

The device comprises, in combination, a pattern-reproducing electrode and a recording material comprising an electrically conductive base coated by a conductive recording layer. The recording layer comprises particles of a semiconductive oxide (such as TiO2), a colour coupler, a developer (the coupler and developer being capable of reacting together to form a coloured dye) and a binder (preferably a water-soluble polymer). The device also includes a source of metal ions (such as silver ions) which, on application of an electric field between the base and the pattern- reproducing electrode, are capable of migrating to the surface of the oxide particles to cause dye-forming reaction between the coupler and the developer. The recording method comprises applying an electric field between the electrode and the base; only low voltages are needed and a wide variety of colours are obtainable.
GB787828930A 1977-07-06 1978-07-05 Electrographic recording device and method Withdrawn GB2001283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7720774A FR2396655A1 (en) 1977-07-06 1977-07-06 ELECTROGRAPHIC RECORDING ELEMENT

Publications (1)

Publication Number Publication Date
GB2001283A true GB2001283A (en) 1979-01-31

Family

ID=9193058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787828930A Withdrawn GB2001283A (en) 1977-07-06 1978-07-05 Electrographic recording device and method

Country Status (8)

Country Link
JP (1) JPS5452550A (en)
BE (1) BE868742A (en)
DE (1) DE2829611A1 (en)
ES (1) ES471538A1 (en)
FR (1) FR2396655A1 (en)
GB (1) GB2001283A (en)
IT (1) IT7868590A0 (en)
SE (1) SE7807409L (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458128C3 (en) * 1973-12-10 1981-07-16 Canon K.K., Tokyo Current sensitive image recording material

Also Published As

Publication number Publication date
BE868742A (en) 1978-11-03
IT7868590A0 (en) 1978-07-05
ES471538A1 (en) 1979-09-01
FR2396655A1 (en) 1979-02-02
SE7807409L (en) 1979-01-07
JPS5452550A (en) 1979-04-25
DE2829611A1 (en) 1979-02-08
FR2396655B1 (en) 1980-06-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)