GB938924A - Improvements in or relating to the production of printing plates for colour reproduction - Google Patents
Improvements in or relating to the production of printing plates for colour reproductionInfo
- Publication number
- GB938924A GB938924A GB315961A GB315961A GB938924A GB 938924 A GB938924 A GB 938924A GB 315961 A GB315961 A GB 315961A GB 315961 A GB315961 A GB 315961A GB 938924 A GB938924 A GB 938924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- negatives
- positive
- colour
- detail
- positives
- 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)
- Holders For Sensitive Materials And Originals (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
938,924. Photo-mechanical colour printing. AUSTIN MILES Ltd. Jan. 26, 1962 [Jan. 26, 1961], No. 3159/61. Class 98 (2). Sets of corrected screen positives or negatives for preparing printing plates for photo-mechanical colour printing processes are prepared from positive colour transparencies bearing superfluous or insufficient detail by preparing a balanced set of continuous tone colour separated negatives from the transparency; blocking out and/or inserting detail on one of such negatives or a positive print thereof ; copying the same blocked and/or inserted detail on each of the other negatives or positive prints of the set with accurate register and tone matching; and making a set of corrected screen positives or negatives from the retouched negatives or positives. The copying of the retouching may be effected by making a tracing of the retouching of the first negative or positive and applying the tracing to each of the others of the set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB315961A GB938924A (en) | 1961-01-26 | 1961-01-26 | Improvements in or relating to the production of printing plates for colour reproduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB315961A GB938924A (en) | 1961-01-26 | 1961-01-26 | Improvements in or relating to the production of printing plates for colour reproduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB938924A true GB938924A (en) | 1963-10-09 |
Family
ID=9753054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB315961A Expired GB938924A (en) | 1961-01-26 | 1961-01-26 | Improvements in or relating to the production of printing plates for colour reproduction |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB938924A (en) |
-
1961
- 1961-01-26 GB GB315961A patent/GB938924A/en not_active Expired
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