GB1072557A - Process for the production of screened tonally correct printing plates - Google Patents

Process for the production of screened tonally correct printing plates

Info

Publication number
GB1072557A
GB1072557A GB3924564A GB3924564A GB1072557A GB 1072557 A GB1072557 A GB 1072557A GB 3924564 A GB3924564 A GB 3924564A GB 3924564 A GB3924564 A GB 3924564A GB 1072557 A GB1072557 A GB 1072557A
Authority
GB
United Kingdom
Prior art keywords
areas
colophony
sept
poly
screened
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
GB3924564A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Publication of GB1072557A publication Critical patent/GB1072557A/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
    • G03G5/10—Bases for charge-receiving or other layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
    • G03F7/115—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having supports or layers with means for obtaining a screen effect or for obtaining better contact in vacuum printing
    • 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
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs

Abstract

1,072,557. Electrophotography. KALLE A.G. Sept. 25, 1964 [Sept. 27, 1963], No 39245/64. Heading H1K. [Also in Division G2] An electrophotographic plate comprises a conductive support having thereon a photoconductive coating which contains a sensitizer and which is divided into small areas of differing light sensitivity. The areas of differing sensitivity are preferably a network of skeleton hexagons or lines (20-100 per cm.) and it is preferred that the more sensitive areas are 5 to 12 times more sensitive. The support may be a plate or foil of Al, Cu or Zn; or paper, cellulose ester, polyolefine, polyvinyl resin, polyester, polyacrylic, polyamide or polyurethane. The photo-conductive layer may be formed from the oxides, selenides, sulphides, tellurides or iodides of Zn, Bi, Mo., Pb, Sb, or Cd; oxadiazoles, imidazolones, imidazolidones, triazoles, oxazoles, thiazoles, triazines, polyvinyldiphenyls, polyvinyl naphthalenes, polyvinylstyrenes, poly- N-vinyl carbazole, poly-C-vinyl carbazole. Sensitizing dyestuffs may be added whilst balsam, colophony, colophony/phenolic or silicone resins or shellac may be used as binders.
GB3924564A 1963-09-27 1964-09-25 Process for the production of screened tonally correct printing plates Expired GB1072557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0050942 1963-09-27

Publications (1)

Publication Number Publication Date
GB1072557A true GB1072557A (en) 1967-06-21

Family

ID=7225816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3924564A Expired GB1072557A (en) 1963-09-27 1964-09-25 Process for the production of screened tonally correct printing plates

Country Status (5)

Country Link
AT (1) AT258969B (en)
BE (1) BE653534A (en)
CH (1) CH446897A (en)
GB (1) GB1072557A (en)
NL (1) NL6410840A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385823A (en) * 1979-04-16 1983-05-31 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
USRE32259E (en) * 1979-04-16 1986-10-07 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
US8372567B2 (en) 2008-05-29 2013-02-12 Fuji Electric Co., Ltd. Electrophotographic photoreceptor and manufacturing method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385823A (en) * 1979-04-16 1983-05-31 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
USRE32259E (en) * 1979-04-16 1986-10-07 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
US8372567B2 (en) 2008-05-29 2013-02-12 Fuji Electric Co., Ltd. Electrophotographic photoreceptor and manufacturing method therefor

Also Published As

Publication number Publication date
BE653534A (en) 1965-03-24
AT258969B (en) 1967-12-27
CH446897A (en) 1967-11-15
NL6410840A (en) 1965-03-29

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