DE254774C - - Google Patents
Info
- Publication number
- DE254774C DE254774C DENDAT254774D DE254774DA DE254774C DE 254774 C DE254774 C DE 254774C DE NDAT254774 D DENDAT254774 D DE NDAT254774D DE 254774D A DE254774D A DE 254774DA DE 254774 C DE254774 C DE 254774C
- Authority
- DE
- Germany
- Prior art keywords
- printing
- exposed
- raster
- paper
- negative cross
- 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.)
- Active
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
- G03F5/00—Screening processes; Screens therefor
- G03F5/20—Screening processes; Screens therefor using screens for gravure printing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
Description
SittenManners
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
254774 KLASSE 57d. GRUPPE254774 CLASS 57 d. GROUP
Zusatz zum Patent 254578 vom 17. August 1910.Addendum to patent 254578 from August 17, 1910.
Patentiert im Deutschen Reiche vom 29. März 1911 ab. Längste Dauer: 16. August 1925.Patented in the German Empire on March 29, 1911. Longest duration: August 16, 1925.
In der Patentschrift 254578 ist ein Verfahren beschrieben, welches darin besteht, daß ein ^ Druck auf entwicklungsfähigem Gelatinepapier in lichtundurchlässiger Farbe hergestellt und nach dem Belichten Und eventuell Entfernen der Farbe entwickelt und auf die Walze übertragen wird.In the patent 254578 a method is described which consists in that a ^ Print made on developable gelatin paper in opaque color and after exposure and possibly removing the color developed and transferred to the roller will.
Die vorliegende Zusatzerfindung betrifft eine weitere Ausbildung des Verfahrens und bezweckt, die Walze derart zu rastrieren, daß auf derselben ein zur Rakelführung geeigneter, über die Druckelemente erhabener Raster entsteht, der das Einfallen des Rakels in die Vertiefungen der Druckfläche und die damit verbundene Zerstörung einzelner Druckelemente verhindern soll.The present additional invention relates to a further development of the method and aims to rasterize the roller in such a way that on it a suitable for squeegee guidance, A raised grid is created over the printing elements, which prevents the squeegee from falling into the Depressions in the printing surface and the associated destruction of individual printing elements should prevent.
Das Verfahren besteht darin, daß das Gelatinepapier vor dem Druck oder nach dem Drucken und Belichten und Entfernen der Druckfarbe unter einem negativen Kreuzraster 25 The method consists in placing the gelatin paper under a negative cross grid 25 before printing or after printing and exposing and removing the printing ink
belichtet wird. Es gelingt auf diese Weise, die Buchstaben beispielsweise vollkommen zu rastrieren, wodurch sich für den Druck von der Walze nachher sehr scharfe und saubere Drucke ergeben, und die Druckelemente auf der Walze gegen das Ausschleifen durch die Rakel geschützt werden.is exposed. In this way it is possible to completely close the letters, for example rasterized, which makes the print from the roller very sharp and clean afterwards Prints result, and the pressure elements on the roller against being sanded out by the Squeegees are protected.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE254774T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE254774C true DE254774C (en) |
Family
ID=5960049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT254774D Active DE254774C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE254774C (en) |
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0
- DE DENDAT254774D patent/DE254774C/de active Active
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