CH121125A - Printing form carrier. - Google Patents
Printing form carrier.Info
- Publication number
- CH121125A CH121125A CH121125DA CH121125A CH 121125 A CH121125 A CH 121125A CH 121125D A CH121125D A CH 121125DA CH 121125 A CH121125 A CH 121125A
- Authority
- CH
- Switzerland
- Prior art keywords
- printing form
- inert
- form carrier
- chemical preparations
- carrier
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/04—Printing plates or foils; Materials therefor metallic
- B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
Landscapes
- Printing Plates And Materials Therefor (AREA)
Description
Druckformträger. Es sind Druckformträger bekannt,, zum Beispiel Platten oder Walzen, auf deren Oberfläche ein äusserst dünner Überzug aus sauren oder alkalischen Präparaten als Flach druckform hergestellt ist, der also zum Beispiel bei Auflegung eines in besonderer Tinte ge schriebenen Originals derart auf die Tinten schrift reagiert, dass die mit den Schrift elementen in Berührung gewesenen Stellen der Form sofort oder nach Behandlung mit einer Entwicklungsflüssigkeit Fettfarbe an nehmen, die andern Stellen dagegen solche abstossen.
Es wurden für diesen Zweck als Druckformträger vorzugsweise Platten aus Glas oder andern ,Silikaten vor geschlagen.
Es wurde nun gefunden, dass für diese Zwecke als Druckformträger sich vorzüglich solche mit Oberflächen aus einem gegen die chemischen Präparate inerten Metall eignen, die also auf die in Frage kommenden sauren oder alkalischen Präparate nicht reagieren. Diese die inerten Metalloberflächen aufwei senden Teile der Druckformträger können von einem andersartigen Material getragen .sein, also zum Beispiel Metallüberzüge, wie Verchromungen und dergleichen, darstellen.
Es können aber auch der Oberflächen teil und der übrige Teil des Druckformträ- gers den nämlichen Körper bilden, das heisst, es können Platten, Walzen Zylinder voll ständig aus dem gegen die chemischen Prä parate des dünnen Überzuges inerten Metall bestehen.
Besonders geeignet haben sich als in genanntem Sinne inerte Metalle die in den Handel gekommenen Edelstahlsorten, wie zum Beispiel hochgechromter, kohlenstoff- armer Stahl, erwiesen. Diese verhalten sich den in Frage kommenden sauren oder alka lischen Präparaten gegenüber vollkommen indifferent, so dass sie vollkommen wie eine Glasplatte verwendet werden können. Sie brauchen nicht besonders gerauht zu wer den.
Es genügt die Rauhung, wie sie die gewalzte Oberfläche aufweist. Gegen über den; Glasformträgern haben die gegen die chemischen Präparate inerten Metall formträger den Vorzug, dass sie in geringerer Diclee angewendet werden können; infolge- dessen leichter sind, und dass' sie sich ausser dem leicht sowohl als Platten, wie als Wal zen ausbilden lassen.
Printing form carrier. There are printing plate carriers known, for example plates or rollers, on the surface of which an extremely thin coating of acidic or alkaline preparations is made as a flat printing plate, which reacts to the ink writing when an original written in special ink is placed, that the parts of the form that have been in contact with the writing elements immediately or after treatment with a developing liquid take on a greasy color, while the other parts repel them.
For this purpose, plates made of glass or other silicates were preferably proposed as printing form supports.
It has now been found that those with surfaces made of a metal which is inert to the chemical preparations and which do not react to the acidic or alkaline preparations in question are particularly suitable as printing form carriers for these purposes. These parts of the printing forme supports exhibiting the inert metal surfaces can be carried by a different material, for example, represent metal coatings such as chrome plating and the like.
However, the surface part and the remaining part of the printing forme carrier can also form the same body, that is, plates, rollers and cylinders can consist entirely of the metal which is inert to the chemical preparations of the thin coating.
The types of stainless steel commercially available, such as, for example, highly chromium-plated, low-carbon steel, have proven particularly suitable as metals that are inert in the sense mentioned. These behave completely indifferent to the acidic or alkaline preparations in question, so that they can be used completely like a glass plate. They do not need to be specially roughened.
The roughening is sufficient, as it has the rolled surface. Compared to the; Glass mold carriers, the metal mold carriers that are inert to the chemical preparations have the advantage that they can be used in smaller dimensions; as a result are lighter, and that they can also be easily designed both as plates and as rollers.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH121125T | 1926-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH121125A true CH121125A (en) | 1927-06-16 |
Family
ID=4379966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH121125D CH121125A (en) | 1926-06-10 | 1926-06-10 | Printing form carrier. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH121125A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480677A1 (en) * | 1980-04-16 | 1981-10-23 | Nouel Jean Marie | Offset plate supports made from black iron - has satin finish and coated with rust preventative before use |
-
1926
- 1926-06-10 CH CH121125D patent/CH121125A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480677A1 (en) * | 1980-04-16 | 1981-10-23 | Nouel Jean Marie | Offset plate supports made from black iron - has satin finish and coated with rust preventative before use |
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