GB385808A - A process of direct photographic production of copy in full tone from relief printing formes - Google Patents

A process of direct photographic production of copy in full tone from relief printing formes

Info

Publication number
GB385808A
GB385808A GB9260/32A GB926032A GB385808A GB 385808 A GB385808 A GB 385808A GB 9260/32 A GB9260/32 A GB 9260/32A GB 926032 A GB926032 A GB 926032A GB 385808 A GB385808 A GB 385808A
Authority
GB
United Kingdom
Prior art keywords
developed
printing
copy
photographed
colour
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
GB9260/32A
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.)
BELCOLOR GmbH
Original Assignee
BELCOLOR GmbH
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 BELCOLOR GmbH filed Critical BELCOLOR GmbH
Publication of GB385808A publication Critical patent/GB385808A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/90Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof prepared by montage processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

385,808. Photo-mechanical printing- surfaces. BELCOLOR GES., 31, Neuenburger Strasse, Berlin. March 31, 1932, No. 9260. Convention date, April 1, 1931. [Class 98 (ii).] A direct photographic full - tone copy is obtained from letterpress and/or block printing formes by covering by spraying the complete upper surface of the forme with a colour which is as actinically active or inert as possible, clearing the printing portion of the surface and coating the cleared surface by rolling thereon a colour having opposite actinic properties, and photographing. To obtain full contact, the developed negative may be treated by a known etching process. In an example, a bookprinting composition is sprayed with thin black pyroxylin, the printing parts are cleared and rolled with a good white paint. The prepared composition is either (1) photographed on to a film, through the support, the film being developed with pyrocatechin without sulphite and etched with warm water followed by further development or treatment with sodium sulphide; or (2) photographed on to bromide paper which is developed with a non-hardening developer, bleached with acidified peroxide of hydrogen solution, re-exposed and re-developed.
GB9260/32A 1931-04-01 1932-03-31 A process of direct photographic production of copy in full tone from relief printing formes Expired GB385808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE385808X 1931-04-01

Publications (1)

Publication Number Publication Date
GB385808A true GB385808A (en) 1933-01-05

Family

ID=6370872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9260/32A Expired GB385808A (en) 1931-04-01 1932-03-31 A process of direct photographic production of copy in full tone from relief printing formes

Country Status (4)

Country Link
US (1) US1928181A (en)
BE (1) BE387500A (en)
GB (1) GB385808A (en)
NL (1) NL33194C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609293A (en) * 1948-12-02 1952-09-02 George L Morrison Method of photographing printing forms

Also Published As

Publication number Publication date
US1928181A (en) 1933-09-26
BE387500A (en)
NL33194C (en)

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