GB191324897A - Improvements in and relating to the Preparation of Photomechanical Printing Surfaces. - Google Patents

Improvements in and relating to the Preparation of Photomechanical Printing Surfaces.

Info

Publication number
GB191324897A
GB191324897A GB191324897DA GB191324897A GB 191324897 A GB191324897 A GB 191324897A GB 191324897D A GB191324897D A GB 191324897DA GB 191324897 A GB191324897 A GB 191324897A
Authority
GB
United Kingdom
Prior art keywords
printing
preparation
ink
raised points
tops
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
Inventor
John Gaskin Wood
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191324897A publication Critical patent/GB191324897A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

24,897. Wood, J. G. Nov. 1. Photomechanical printing-surfaces.-In the preparation of photo-lithographic printing-surfaces, a sand-blasted or grained plate is coated with bichromated gelatine or other colloid and then with an acid-resisting transfer ink. The ink is applied with a printer's composition roller so that more ink is deposited on the tops or raised points of the grained plate, owing to the fact that these tops or raised points receive, more pressure from the roller. In printing from the negative, only the very transparent parts of the negative are printed at these raised points and, in this way, on subsequently developing and preparing the plates for printing, the tones of the picture are broken up into a grain of varying texture or-density.
GB191324897D 1913-11-01 1913-11-01 Improvements in and relating to the Preparation of Photomechanical Printing Surfaces. Expired GB191324897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191324897T 1913-11-01

Publications (1)

Publication Number Publication Date
GB191324897A true GB191324897A (en) 1914-04-23

Family

ID=32580118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191324897D Expired GB191324897A (en) 1913-11-01 1913-11-01 Improvements in and relating to the Preparation of Photomechanical Printing Surfaces.

Country Status (2)

Country Link
FR (1) FR472521A (en)
GB (1) GB191324897A (en)

Also Published As

Publication number Publication date
FR472521A (en)

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