GB1225525A - - Google Patents

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Publication number
GB1225525A
GB1225525A GB1225525DA GB1225525A GB 1225525 A GB1225525 A GB 1225525A GB 1225525D A GB1225525D A GB 1225525DA GB 1225525 A GB1225525 A GB 1225525A
Authority
GB
United Kingdom
Prior art keywords
resin
intermediate layer
layer
photo
support
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
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 filed Critical
Publication of GB1225525A publication Critical patent/GB1225525A/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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
    • G03G13/28—Planographic printing plates
    • 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
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0528—Macromolecular bonding materials
    • G03G5/0532—Macromolecular bonding materials obtained by reactions only involving carbon-to-carbon unsatured bonds
    • G03G5/0546—Polymers comprising at least one carboxyl radical, e.g. polyacrylic acid, polycrotonic acid, polymaleic acid; Derivatives thereof, e.g. their esters, salts, anhydrides, nitriles, amides
    • 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
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0528—Macromolecular bonding materials
    • G03G5/0592—Macromolecular compounds characterised by their structure or by their chemical properties, e.g. block polymers, reticulated polymers, molecular weight, acidity
    • 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
    • G03G5/10—Bases for charge-receiving or other layers
    • G03G5/101—Paper bases
    • 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
    • G03G5/142—Inert intermediate layers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1,225,525. Electrophotographic plate. RICOH, K.K. 29 March, 1968, No. 15248/68. Heading H1K. [Also in Division G2] An electrophotographic plate suitable for use in lithography comprises a support, a layer of low electrical resistance formed on one surface of the support, an intermediate layer on the other surface of the support and a photo-conductive layer formed on the intermediate layer, the intermediate layer comprising a water-soluble thermosetting resin containing hydroxymethyl radicals whilst the photo-conductive layer comprises a thermosetting acrylic resin containing both hydroxyethyl and oarboxyl radicals. The support is preferably paper made from coniferous trees, whilst the low resistance layer may be a mixture of acetal resin and zinc nitrate, cationized and starch-modified urea resin and ammonium chloride or acetal resin, ammonium oxalate and vinyl benzyl trimethyl ammonium chloride. The intermediate layer may be formed from polymethylol-acrylamide, polyvinyl alcohol + melamine formaldehyde resin or N-methylol acrylamide and cationized urea resin. The photo-conductive layer may comprise ZnO, a plurality of dyestuffs, a silicone resin, a carboxy acrylic resin and a hydroxyethyl resin. The carboxyl groups in the resin of the photoconductive layer act as acid catalysts for the .resin of the intermediate layer and also form ester links with the hydroxyethyl groups, further the hydroxymethyl groups of the intermediate layer cross-link with the carboxyl groups in the photo-conductive layer.
GB1225525D 1968-03-29 1968-03-29 Expired GB1225525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1524868 1968-03-29

Publications (1)

Publication Number Publication Date
GB1225525A true GB1225525A (en) 1971-03-17

Family

ID=10055697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225525D Expired GB1225525A (en) 1968-03-29 1968-03-29

Country Status (1)

Country Link
GB (1) GB1225525A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351439A1 (en) * 1976-05-15 1977-12-09 Mita Industrial Co Ltd PHOTOSENSITIVE ELECTROPHOTOGRAPHIC ELEMENT AND PROCESS FOR ITS PREPARATION
EP0021124A1 (en) * 1979-06-29 1981-01-07 Allied Paper, Incorporated Electrostatic masters
EP0033350A1 (en) * 1980-01-23 1981-08-12 Allied Paper, Incorporated Method for the preparation of improved water and solvent resistant coated substrates
GB2116736A (en) * 1982-03-09 1983-09-28 Mitsubishi Paper Mills Ltd Electrophotographic lithographic printing plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351439A1 (en) * 1976-05-15 1977-12-09 Mita Industrial Co Ltd PHOTOSENSITIVE ELECTROPHOTOGRAPHIC ELEMENT AND PROCESS FOR ITS PREPARATION
EP0021124A1 (en) * 1979-06-29 1981-01-07 Allied Paper, Incorporated Electrostatic masters
EP0033350A1 (en) * 1980-01-23 1981-08-12 Allied Paper, Incorporated Method for the preparation of improved water and solvent resistant coated substrates
GB2116736A (en) * 1982-03-09 1983-09-28 Mitsubishi Paper Mills Ltd Electrophotographic lithographic printing plate

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees