DE490485C - Process for the production of negatives with the correct color value for photolithographic reproduction with retouching on films - Google Patents
Process for the production of negatives with the correct color value for photolithographic reproduction with retouching on filmsInfo
- Publication number
- DE490485C DE490485C DEM99384D DEM0099384D DE490485C DE 490485 C DE490485 C DE 490485C DE M99384 D DEM99384 D DE M99384D DE M0099384 D DEM0099384 D DE M0099384D DE 490485 C DE490485 C DE 490485C
- Authority
- DE
- Germany
- Prior art keywords
- retouching
- negatives
- production
- color value
- films
- 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)
Description
Verfahren zur Herstellung farbwertrichtiger Negative für die photolithographische Vervielfältigung unter Anbringung der Retusche auf Filme Die Erfindung betrifft ein Verfahren zur Herstellung von Negativen -, vorzugsweise für den Mehrfarbendruck, die nach der Aufnahme die bisher übliche umständliche Retuschleraibeit von Konturen, Schrift und falschen Tonwerten nicht mehr erfordern, vielmehr schon bei der Aufnahme die richtigen Farbwerte aufweisen, so daß die umfangreiche Retuschierarbeit bei beliebig hohen Farbenskalen nur einmal zu leisten ist, wogegen sie bisher so oft ausgeführt werden muß, als Farben im Original vorkommen.Process for the production of negatives with the correct color value for photolithographic printing Duplication with Retouching on Films The invention relates to a process for the production of negatives -, preferably for multi-color printing, the cumbersome retouching of contours that has been customary after the recording, No longer require writing and incorrect tonal values, rather already during the recording have the correct color values, so that the extensive retouching work at Any high color scale can only be achieved once, whereas it has so often been done so far must be carried out when colors appear in the original.
Im wesentlichen besteht die Erfindung darin, daß das auf photolithographischem Wege zu vervielfältigende farbige Original vor der Aufnahme mit einer durchsichtigen Decke aus Celluloid, Zellstoff o. dgl. überdeckt wird, auf der nun unter Anwendung von Farben, welche die jeweils benutzten, niemals e#Inen einwandfreien Farbauszug liefernden Farbfilter in ihren Tonwerten unterstützen oder aber, worauf der größere Wert zu legen ist, Konturen, Beschriftungen und solche Bildbestandteile, die bei einzelnen Farben nicht zur Erscheinung kommen sollen, für die Farbfilter unerreichbar machen. Die Bildaufnahme erfolgt alsdann zusammen mit dem auf ihren Farbwert bereits korrigierten durchsichtigen überzug, so daß das solcherart erzielte Negativ hinsichtlich der Tonwerte vollkommen richtig ist und weder das Negativ noch die von ihm her-gestellten Kopien besondere Retus.chierarbeit erfordern, denn die zur Erzielung der richtigen Farbwerte erforderliche Arbeit ist auf dem einfachsten und dabei zuverlässigsten Wege bereits vor der Aufnahme geleistet worden.Essentially, the invention is that the photolithographic Ways to be duplicated colored original before recording with a clear one Cover made of celluloid, cellulose or the like. Is covered on the now using of colors, which the respectively used, never a perfect color separation support the supplying color filter in their tonal values or, on which the larger one It is important to have contours, lettering and image components that are included in individual colors should not appear, for the color filters inaccessible do. The image is then already recorded together with the color value corrected transparent coating, so that the negative thus obtained with respect to the tone value is completely correct and neither the negative nor the ones made by him Copies require special retouching work, because those to achieve the correct one The work required for color values is on the simplest and most reliable at the same time Paths have already been made before the admission.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM99384D DE490485C (en) | 1927-04-22 | 1927-04-22 | Process for the production of negatives with the correct color value for photolithographic reproduction with retouching on films |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM99384D DE490485C (en) | 1927-04-22 | 1927-04-22 | Process for the production of negatives with the correct color value for photolithographic reproduction with retouching on films |
Publications (1)
Publication Number | Publication Date |
---|---|
DE490485C true DE490485C (en) | 1930-01-29 |
Family
ID=7324045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM99384D Expired DE490485C (en) | 1927-04-22 | 1927-04-22 | Process for the production of negatives with the correct color value for photolithographic reproduction with retouching on films |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE490485C (en) |
-
1927
- 1927-04-22 DE DEM99384D patent/DE490485C/en not_active Expired
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