GB265998A - Improvements relating to photomechanical monochrome and polychrome screen reproduction - Google Patents
Improvements relating to photomechanical monochrome and polychrome screen reproductionInfo
- Publication number
- GB265998A GB265998A GB405227A GB405227A GB265998A GB 265998 A GB265998 A GB 265998A GB 405227 A GB405227 A GB 405227A GB 405227 A GB405227 A GB 405227A GB 265998 A GB265998 A GB 265998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- printing
- necessary
- making
- screen
- corrections
- 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
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
- G03F3/00—Colour separation; Correction of tonal value
- G03F3/02—Colour separation; Correction of tonal value by retouching
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
Abstract
265,998. Branger, J. R., and Thoorens, J. J. J. Feb. 14, 1927. Photo-mechanical printing-surfaces.-In order to determine what corrections are necessary for an ordinary size or small negative which is to be used for the production of large size printing surfaces by first making enlarged screen reproductions, from which reproductions the final printing surface is produced, a screen reproduction is first made from the original negative and a gelatin printing surface made therefrom. The trial proof therefrom shows up the defects and indicates what corrections are necessary for the original negative prior to making the screen enlargements for the final printing surfaces. The trial printing process can be repeated if necessary, and the process is particularly applicable for multi-colour printing. The Specification as open to inspection under Sect. 91 (3) (a) mentions the use of ferroprussiate paper carried on gelatine for making printing surfaces, and also the alternative use of sureen-negatives. This subject-matter is not specifically included in the Specification as accepted.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR33349D FR33349E (en) | 1927-02-14 | 1927-01-31 | New application to monochrome and polychrome raster photomechanical reproductions |
| GB405227A GB265998A (en) | 1927-02-14 | 1927-02-14 | Improvements relating to photomechanical monochrome and polychrome screen reproduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB405227A GB265998A (en) | 1927-02-14 | 1927-02-14 | Improvements relating to photomechanical monochrome and polychrome screen reproduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB265998A true GB265998A (en) | 1927-12-29 |
Family
ID=9769801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB405227A Expired GB265998A (en) | 1927-02-14 | 1927-02-14 | Improvements relating to photomechanical monochrome and polychrome screen reproduction |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR33349E (en) |
| GB (1) | GB265998A (en) |
-
1927
- 1927-01-31 FR FR33349D patent/FR33349E/en not_active Expired
- 1927-02-14 GB GB405227A patent/GB265998A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR33349E (en) | 1928-09-26 |
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