DE319609C - Process for producing force adjustments on the back of letterpress forms - Google Patents
Process for producing force adjustments on the back of letterpress formsInfo
- Publication number
- DE319609C DE319609C DE1917319609D DE319609DD DE319609C DE 319609 C DE319609 C DE 319609C DE 1917319609 D DE1917319609 D DE 1917319609D DE 319609D D DE319609D D DE 319609DD DE 319609 C DE319609 C DE 319609C
- Authority
- DE
- Germany
- Prior art keywords
- gelatin
- layer
- letterpress
- forms
- producing force
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M9/00—Processes wherein make-ready devices are used
- B41M9/02—Relief make-readies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M9/00—Processes wherein make-ready devices are used
- B41M9/02—Relief make-readies
- B41M9/04—Relief make-readies photomechanical
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Printing Methods (AREA)
Description
Das den Gegenstand der Erfindung bildende Verfahren hat den Zweck, Kraftzurichtungen, die bisher durch Papierausschnitte, durch Me-. tallätzungen u. dgl. erzielt werden, gleichzeitig mit dem Kopieren des Klischees auf der Rückseite des Klischees zu erzielen. Die Druckfläche des Klischees sowohl als auch die damit verbundene Zurichtung werden auf Grund der bekannten lichtempfindlichen EigenschaftenThe method forming the subject of the invention has the purpose of force adjustments, which so far by paper clippings, by me-. Metal etchings and the like can be achieved at the same time by copying the cliché on the back of the cliché. The printing area the cliché as well as the associated dressing are due to the known photosensitive properties
ίο der Chromatgelatine erzeugt.ίο generated by the chromate gelatin.
Das Verfahren wird wie folgt ausgeführt. Ein mehr oder weniger durchsichtiges Material, wie z. B. Zellon, Zelluloid, Kaseinmassen, Papier u. dgl., .wird beiderseitig mit .Gelatine überzogen. Die eine Seite gibt die Druckfläche, die andere die Zurichtung. Um die Druckfläche gut plan herzustellen, wird eine entsprechende. Menge Gelatine auf eine plan polierte Platte aufgetragen, hierauf das durchsichtige Material und auf dieses die zweite Gelatineschicht gelegt, die die Zurichtung ergeben soll. Man erhält so einen Druckstock, der aus einem auf beiden Seiten mit Gelatine überzogenen durchsichtigen Träger besteht.The procedure is carried out as follows. A more or less transparent material, such as B. cellon, celluloid, casein masses, paper and the like. Will be used on both sides .Gelatin coated. One side provides the printing surface, the other the finishing. Around Making the printing surface flat is a corresponding one. Amount of gelatin to one Flat polished plate applied, then the transparent material and on this the put a second layer of gelatin, which should result in the dressing. You get such a printing block, which consists of a transparent support coated on both sides with gelatin.
Die beiden Gelatineflächen werden durch Chromieren lichtempfindlich gemacht. Die .Seite, die als Druckfläche dienen soll, wird durch ein Autotypienegativ so lange belichtet, bis die Lichtstrahlen durch den Träger hindurch auch die Zurichtungsseite genügend belichtet haben. Der Autotypiepunkt verschwindet auf der Zurichtungsseite, weil die Strahlenbündel in der Tiefe des Materials sich zerstreuen. Beim Auswaschen der Gelatine mit warmem Wasser entsteht auf der Zurichtungsseite - des Klischees ein genaues, dem Bilde entsprechendes Relief, die Zurichtung des Klischees, und wegen der Zerstreuung* der Strahlenbündel eine Zurichtung, die beim Drucken weich wirkt. Das Klischee wird auf übliche Weise mit der Zurichtungsseite nach unten auf einem Holzfuß o. dgl. befestigt. The two gelatine surfaces are made light-sensitive by chroming. the The side that is to serve as a printing area is exposed by an autotype negative for as long as until the light rays pass through the carrier and also illuminate the dressing side sufficiently to have. The autotype point disappears on the dressing side because the bundle of rays is in the depth of the material dissipate. When the gelatine is washed out with warm water, it forms on the Dressing side - the cliché is an exact relief corresponding to the picture, the dressing of the cliché, and because of the distraction the bundle of rays a finishing that appears soft when printing. The stereotype is attached in the usual way with the finishing side down on a wooden foot or the like.
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE319609T | 1917-12-05 | ||
FR517778T | 1918-09-27 | ||
GB17719/19A GB151405A (en) | 1917-12-05 | 1919-07-15 | Improved method of producing cliches made-ready for printing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE319609C true DE319609C (en) | 1920-03-06 |
Family
ID=37950763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1917319609D Expired DE319609C (en) | 1917-12-05 | 1917-12-05 | Process for producing force adjustments on the back of letterpress forms |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE319609C (en) |
FR (1) | FR517778A (en) |
GB (1) | GB151405A (en) |
-
1917
- 1917-12-05 DE DE1917319609D patent/DE319609C/en not_active Expired
-
1918
- 1918-09-27 FR FR517778A patent/FR517778A/en not_active Expired
-
1919
- 1919-07-15 GB GB17719/19A patent/GB151405A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR517778A (en) | 1921-05-11 |
GB151405A (en) | 1920-09-30 |
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