GB1186737A - Xerographic Production of Printing Masters - Google Patents

Xerographic Production of Printing Masters

Info

Publication number
GB1186737A
GB1186737A GB3021067A GB3021067A GB1186737A GB 1186737 A GB1186737 A GB 1186737A GB 3021067 A GB3021067 A GB 3021067A GB 3021067 A GB3021067 A GB 3021067A GB 1186737 A GB1186737 A GB 1186737A
Authority
GB
United Kingdom
Prior art keywords
zinc
photo
cadmium
glass
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
GB3021067A
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.)
Xerox Ltd
Original Assignee
Rank Xerox 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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1186737A publication Critical patent/GB1186737A/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
    • 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
    • G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
    • G03G5/085—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and being incorporated in an inorganic bonding material, e.g. glass-like layers
    • 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
    • G03G13/32—Relief 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
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0664—Dyes
    • G03G5/0696—Phthalocyanines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1,186,737. Electrophotographic element. RANK XEROX Ltd. 30 June, 1967 [1 July 1966], No. 30210/67. Heading H1K. [Also in Divisions C1 and G2] A printing master comprises a support substrate coated with a layer comprising a photoconductive material dispersed or dissolved in a glass insulating binder, which layer, after forming an electrostatic latent image thereon and developing said image, is etched to form the desired pattern. In a preferred method of forming the plate, the photo-conductive material is mixed with the glass dispersed in water or ethylene glycol, using a ball mill, optionally with sodium silicate, sodium hydroxide or boric acid as dispersing agents. The slurry is then dried and blended with isopropyl alcohol, the blend being applied to one or both sides of the support by flow coating, dipping or spraying and fired at 300-1500‹ F. The support may be aluminium, brass, steel (stainless or low carbon), copper, nickel, zinc, and alloys and mixtures thereof. The photo-conductive material is preferably a phthalocyanine pigment, zinc oxide, zinc sulphide, zinc cadmium sulphide, cadmium selenide, cadmium sulfoselenide, zinc cadmium selenide, zinc sulfo-selenide or mixtures thereof, but many other inorganic photo-conductors are specified. The glass preferably comprises SiO 2 , B 2 O 3 , PbO, CdO, TiO 2 and Na 2 O, but may also contain Al 2 O 3 , K 2 O, CaO, CdO, ZnO 2 , Sb 2 O 3 or As 2 O 3 .
GB3021067A 1966-07-01 1967-06-30 Xerographic Production of Printing Masters Expired GB1186737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56220166A 1966-07-01 1966-07-01

Publications (1)

Publication Number Publication Date
GB1186737A true GB1186737A (en) 1970-04-02

Family

ID=24245236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3021067A Expired GB1186737A (en) 1966-07-01 1967-06-30 Xerographic Production of Printing Masters

Country Status (2)

Country Link
DE (1) DE1572320A1 (en)
GB (1) GB1186737A (en)

Also Published As

Publication number Publication date
DE1572320A1 (en) 1970-01-08

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Legal Events

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