GB1244765A - Improvements in or relating to reflex electrophotography - Google Patents

Improvements in or relating to reflex electrophotography

Info

Publication number
GB1244765A
GB1244765A GB41417/68A GB4141768A GB1244765A GB 1244765 A GB1244765 A GB 1244765A GB 41417/68 A GB41417/68 A GB 41417/68A GB 4141768 A GB4141768 A GB 4141768A GB 1244765 A GB1244765 A GB 1244765A
Authority
GB
United Kingdom
Prior art keywords
dichroic
layer
carbazole
support
oriented
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
GB41417/68A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1244765A publication Critical patent/GB1244765A/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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/225—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 using contact-printing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G03G5/047—Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge transport layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0622—Heterocyclic compounds
    • G03G5/0644—Heterocyclic compounds containing two or more hetero rings
    • G03G5/0646—Heterocyclic compounds containing two or more hetero rings in the same ring system
    • G03G5/065—Heterocyclic compounds containing two or more hetero rings in the same ring system containing three relevant rings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/07—Polymeric photoconductive materials
    • G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G5/072—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups
    • G03G5/073—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups comprising pending carbazole groups
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Laminated Bodies (AREA)
  • Light Receiving Elements (AREA)

Abstract

1,244,765. Photoconductive element. INTERNATIONAL BUSINESS MACHINES CORP. 30 Aug., 1968 [18 Sept., 1967], No. 41417/68. Heading H1K. [Also in Division G2] A photoconductive element, suitable for use in electrophotographic reflex copying comprises a dichroic material having its axes of maximum absorption and transmission oriented in a unidirection, the element exhibiting dichroic photoconductivity and becoming conductive in those areas exposed to light having an electric vector parallel to the absorption axis. The photoconductive element has the advantage that it transmits all light polarized normal to its absorption axis and therefore does not become conductive and efficiently illuminates the document to be copied. The element may be composed of a dichroic photoconductor alone or in association with another material, or a photoconductor together with an oriented dichroic activator. In either case the dichroic material must be oriented so that it acts as a single dichroic unit.. This may be accomplished by (a) dispersing the dichroic material in a sheet of polyvinyl alcohol or polyvinyl formal and stretching it; (b) attaching the dichroic molecules chemically to a material that has a high degree of orientation; (c) coating the material on a sheet having a preferred orientation; or (d) coating them on a surface by unidirectional rubbing followed by stretching and extruding. Transparencies or translucencies which have been backed with depolarizing and reflecting elements can also be copied using this reflex technique. In the embodiments bis (dialkylaminoarylideneamino)benzo bisthiazoles are exemplified as dichroic photoconductors. In one embodiment, an aluminized cellulose triacetate sheet has a layer of bisthiazole formed thereon by rubbing on a dry powder in a unidirection and is overcoated with a layer of poly N-vinyl carbazole. In another embodiment, the layer of poly N-vinyl carbazole is adjacent the aluminized cellulose triacetate sheet and the bisthiazole is covered with cellulose acetate. In the embodiment exemplifying a dichroic activator, a polymer layer is stained with iodine to cause the polymer to exhibit dichroism and activate a photoconductive layer when applied thereto. In another embodiment a layer of an oriented polymeric photoconductor e.g. a terpolymer of N-pentenyl carbazole, N-hexenyl carbazole and pentene-1 is stained with 2,4,7- tinitrofluorenone. Polycarbonate or glass coated with tin oxide. A1 or Cu may be used as a support. The support may serve to polarize the light incident on the photoconductive layer so that its electric vector is in the proper direction for it to pass through the layer. A semi-transparent mirror which may be the metal layer on the support, may be used to reflect the depolarized light back into the layer. In one embodiment, an electrophotographic plate is built up by rubbing a bisthiazole in a unidirection on a film of poly-N-vinylcarbazole activated with tetrachlorophthalic anhydride and carried on a temporary polyethylene terephthalate support, coating the carbazole film with an aqueous solution of copoly(methylvinyl ether-maleic anhydride) and a quaternary ammonium salt, and then laminating the product with glass coated with polyvinylidene chloride. The terephthalate support is removed after lamination.
GB41417/68A 1967-09-18 1968-08-30 Improvements in or relating to reflex electrophotography Expired GB1244765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66869767A 1967-09-18 1967-09-18

Publications (1)

Publication Number Publication Date
GB1244765A true GB1244765A (en) 1971-09-02

Family

ID=24683382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41417/68A Expired GB1244765A (en) 1967-09-18 1968-08-30 Improvements in or relating to reflex electrophotography

Country Status (9)

Country Link
US (1) US3598582A (en)
JP (1) JPS4926907B1 (en)
BE (1) BE720358A (en)
CH (1) CH496264A (en)
ES (1) ES357985A1 (en)
FR (1) FR1577855A (en)
GB (1) GB1244765A (en)
NL (1) NL158624B (en)
SE (1) SE339911B (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881923A (en) * 1970-06-15 1975-05-06 Minolta Camera Kk Electrophotographic sensitive plate
US3870516A (en) * 1970-12-01 1975-03-11 Xerox Corp Method of imaging photoconductor in change transport binder
US3899329A (en) * 1970-12-01 1975-08-12 Xerox Corp Mixture of photoconductors in an active matrix
US3904407A (en) * 1970-12-01 1975-09-09 Xerox Corp Xerographic plate containing photoinjecting perylene pigments
US4282298A (en) * 1970-12-01 1981-08-04 Xerox Corporation Layered imaging member and method
US3877935A (en) * 1970-12-01 1975-04-15 Xerox Corp Novel xerographic plate containing photoinjecting polynuclear quinone pigments
US3928034A (en) * 1970-12-01 1975-12-23 Xerox Corp Electron transport layer over an inorganic photoconductive layer
US3879200A (en) * 1970-12-01 1975-04-22 Xerox Corp Novel xerographic plate containing photoinjecting bis-benzimidazole pigments
US3879199A (en) * 1971-12-03 1975-04-22 Xerox Corp Surface treatment of arsenic-selenium photoconductors
US4026704A (en) * 1971-12-08 1977-05-31 Hoechst Aktiengesellschaft Electrophotographic recording material
US3791826A (en) * 1972-01-24 1974-02-12 Ibm Electrophotographic plate
DE2242627C2 (en) * 1972-08-30 1982-06-09 Hoechst Ag, 6000 Frankfurt Electrophotographic recording material
DE2242595C2 (en) * 1972-08-30 1982-06-09 Hoechst Ag, 6000 Frankfurt Electrophotographic recording material
DE2237539C3 (en) * 1972-07-31 1981-05-21 Hoechst Ag, 6000 Frankfurt Electrophotographic recording material
DE2246254C2 (en) * 1972-09-21 1982-07-01 Hoechst Ag, 6000 Frankfurt Electrophotographic recording material
US4315981A (en) * 1972-07-31 1982-02-16 Hoechst Aktiengesellschaft Organic double layer electrophotographic recording material
US3996049A (en) * 1972-08-30 1976-12-07 Hoechst Aktiengesellschaft Dual layer electrophotographic recording material
US3989520A (en) * 1972-09-21 1976-11-02 Hoechst Aktiengesellschaft Electrophotographic dual layer recording material
US3977870A (en) * 1972-09-21 1976-08-31 Hoechst Aktiengesellschaft Dual layer electrophotographic recording material
US3837851A (en) * 1973-01-15 1974-09-24 Ibm Photoconductor overcoated with triarylpyrazoline charge transport layer
US4097277A (en) * 1973-01-31 1978-06-27 Canon Kabushiki Kaisha Photosensitive member having layer of vinyl carbazole polymer containing antimony chalcogen compound of antimony and sulfur
GB1462986A (en) * 1973-03-30 1977-01-26
US3912506A (en) * 1973-05-21 1975-10-14 Eastman Kodak Co Photoconductive elements containing polymeric binders
US3884690A (en) * 1973-09-27 1975-05-20 Xerox Corp Polyester photoconductors and matrix materials
DE2356370C2 (en) * 1973-11-12 1983-05-11 Hoechst Ag, 6230 Frankfurt Electrophotographic recording material
US4233384A (en) * 1979-04-30 1980-11-11 Xerox Corporation Imaging system using novel charge transport layer
EP0056313A3 (en) * 1981-01-10 1982-11-03 PAYNE, John, Michael Improvements in and relating to electrophotographic copying
EP0670506B1 (en) * 1993-09-10 2004-01-14 Nippon Kayaku Kabushiki Kaisha Polarizer, polarizing plate and process for production thereof
JP7140469B2 (en) * 2016-07-15 2022-09-21 キヤノン株式会社 Photoelectric conversion device and imaging system
US10367113B2 (en) * 2016-07-15 2019-07-30 Canon Kabushiki Kaisha Photoelectric conversion device, imaging element, and imaging device
US20220140266A1 (en) 2020-11-04 2022-05-05 Ubiquitous Energy, Inc. Photoactive compounds for vapor deposited organic photovoltaic devices

Also Published As

Publication number Publication date
NL158624B (en) 1978-11-15
ES357985A1 (en) 1970-04-01
NL6812934A (en) 1969-03-20
SE339911B (en) 1971-10-25
CH496264A (en) 1970-09-15
DE1797306A1 (en) 1970-12-17
FR1577855A (en) 1969-08-08
BE720358A (en) 1969-02-17
JPS4926907B1 (en) 1974-07-12
US3598582A (en) 1971-08-10
DE1797306B2 (en) 1975-07-17

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