GB1512024A - Recording process - Google Patents

Recording process

Info

Publication number
GB1512024A
GB1512024A GB2307275A GB2307275A GB1512024A GB 1512024 A GB1512024 A GB 1512024A GB 2307275 A GB2307275 A GB 2307275A GB 2307275 A GB2307275 A GB 2307275A GB 1512024 A GB1512024 A GB 1512024A
Authority
GB
United Kingdom
Prior art keywords
sensitive
charge
layer
potential
photoconductor
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
GB2307275A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1512024A publication Critical patent/GB1512024A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
    • G03G17/02—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process with electrolytic development
    • 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

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

1512024 Electrographic printing EASTMAN KODAK CO 23 May 1975 [29 July 1974] 23072/75 Heading B6C An electrographic recording process produces visible images in a charge-sensitive recording element containing a reducible metal compound by subjecting the element to a current in selected regions to produce a storable latent image having a charge density of less than 1 millicoulomb per square centimeter and developing by the application of heat. The charge-sensitive layer of the element incorporates a reducible metal compound, a reducing agent being also included in that layer or in a contacting layer during development, heat activating the reduction reaction. The chargesensitive layer may be sensitive or insensitive to visible light; if it is light-sensitive, then it is possible to superimpose the electrically-produced image and a light-exposed image and develop them simultaneously. It is also possible to transfer the developed image to a thermoplastics receptor sheet. Imaging methods include applying current by a single stylus or selectively from an array of styli; scanning with an electron beam through an electrostaticallycharged stencil; placing a photoconductor 30 in contact with the charge-sensitive layer 10, Fig. 2a, between conductive members 15, 35. Member 35 being transparent, and imagewise exposing while applying a potential from source 40 across the sandwich; the charge-sensitive layer 10 thus receives an imagewise modulated current. If a suitable photoconductor is chosen, it need be exposed only once and used with a plurality of successive recording elements. An alternative method includes applying a potential across a similar sandwich with photoconductor 30 being replaced by a dielectric material with a built-in conductivity pattern. Potential could also be applied using a grid controlled corona charger. Development may be by contacting the recording element with a heated platen, or by passing between heated rollers or by applying radiant heat. It is stated that the imaging method produces electrical and/or chemical change in the sensitive layer, the dry development subsequently causing reduction only in those areas.
GB2307275A 1974-07-29 1975-05-23 Recording process Expired GB1512024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49281474A 1974-07-29 1974-07-29

Publications (1)

Publication Number Publication Date
GB1512024A true GB1512024A (en) 1978-05-24

Family

ID=23957742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2307275A Expired GB1512024A (en) 1974-07-29 1975-05-23 Recording process

Country Status (5)

Country Link
JP (1) JPS5163621A (en)
CA (1) CA1037101A (en)
DE (1) DE2533688C3 (en)
FR (1) FR2280517A1 (en)
GB (1) GB1512024A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309497A (en) 1980-06-13 1982-01-05 Eastman Kodak Company Polyester interlayers for electrically activatable recording (ear) elements
US4332875A (en) 1980-06-05 1982-06-01 Eastman Kodak Company Polymeric electrically active conductive layer for electrically activatable recording element and process

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323635A (en) * 1976-08-18 1978-03-04 Fuji Photo Film Co Ltd Conductive formation material an d its conductive picture recording method
CA1151461A (en) * 1979-07-09 1983-08-09 Mark Lelental Electrically activated recording material containing a dye-forming coupler and an oxidation-reduction combination

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138547A (en) * 1959-10-23 1964-06-23 Minnesota Mining & Mfg Electrosensitive recording sheets
DE2334089A1 (en) * 1972-07-04 1974-01-24 Canon Kk Electrosensitive dry recording material - with cpd giving colour change in conducting polymer matrix

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332875A (en) 1980-06-05 1982-06-01 Eastman Kodak Company Polymeric electrically active conductive layer for electrically activatable recording element and process
US4309497A (en) 1980-06-13 1982-01-05 Eastman Kodak Company Polyester interlayers for electrically activatable recording (ear) elements

Also Published As

Publication number Publication date
FR2280517A1 (en) 1976-02-27
DE2533688A1 (en) 1976-02-19
CA1037101A (en) 1978-08-22
DE2533688B2 (en) 1981-04-16
DE2533688C3 (en) 1982-02-25
FR2280517B1 (en) 1981-01-30
JPS5163621A (en) 1976-06-02

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Legal Events

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