DE879055C - Process for the production of printing forms - Google Patents
Process for the production of printing formsInfo
- Publication number
- DE879055C DE879055C DEK1763D DEK0001763D DE879055C DE 879055 C DE879055 C DE 879055C DE K1763 D DEK1763 D DE K1763D DE K0001763 D DEK0001763 D DE K0001763D DE 879055 C DE879055 C DE 879055C
- Authority
- DE
- Germany
- Prior art keywords
- printing forms
- production
- printing
- diazo compounds
- metal plates
- 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
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/016—Diazonium salts or compounds
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
Verfahren zur Herstellung von Druckformen Zusatz zum Patent 85,7 888 Nach ,dem Patent 8:57 888 werden Druckformen mittels Metallplatten oder -fol.ien hergestellt, die aufgewachsene poröse Schichten tragen und in diesen Schichten D'iazofverbindungen enthalten. Das Verfahren beruht darauf, daß nach .der Belichtung des Materials infolge der unterschiedlichen Eigenschaften der Diazoverbindungen und ihrer Lichtzersetzungsprodukte eine Differenzierung der belichteten bzw. unbelichteten Stellen der Oberflächenschicht im Hinblick auf die Annahmefähigkeit für Wasser bzw. fette Farbe erzielt wird. Es ist auf diese Weise möglich, ohne :das bisher gebräuchliche Hilfsmittel einer besonderen Kolloidschicht, beispielsweise einer Gelatineschicht, Druckformen herzustellen. Als Beispiel für die mit den Diazoverbindungen zu präparierenden Platten oder Folien sind im Hauptpatent Metallplatten genannt, deren. Oberfläche durch eine oberflächliche anodische Oxydation verändert worden ist.Process for the production of printing formes Addendum to patent 85.7 888 According to the patent 8:57 888, printing forms are produced by means of metal plates or foils which have grown-on porous layers and which contain D'azof compounds in these layers. The method is based on the fact that after the material has been exposed to light, the different properties of the diazo compounds and their light decomposition products differentiate the exposed and unexposed areas of the surface layer with regard to their ability to accept water or fat color. In this way, it is possible to produce printing forms without: the previously customary auxiliary means of a special colloid layer, for example a gelatin layer. As an example of the plates or foils to be prepared with the diazo compounds, metal plates are named in the main patent. Surface has been changed by superficial anodic oxidation.
In. Weiterbildung des Verfahrens gemäß .dem Patent 857 888 ist gefunden worden, daß sich diese Druckformen in besonders einfacher Weise herstellen lassen, indem man Metallplatten oder -folien, insbesondere Aluminium- oder Zinkplatten, die keiner besonderen Behandlung zur Erzielung von aufgewachsenen porösen Schichten; unterworfen worden sind, mit den Diazoverbindungen präpariert. Anscheinend treten beim Belichten der so präparierten Platten in der darauf an sich schon vorhanden@en,dünnen Oxydschicht Veränderungen ein, welche genügen-, um die notwendige Differenzierung in den Eigenschaften der einzelnen Stellen der Druckplatte zu. erziehen: Die Durchführung des Verfahrens geschieht im einzelnen genau so wie im Patent 857 888 angegeben.In. Further development of the method according to patent 857 888 it has been found that these printing forms can be produced in a particularly simple manner by using metal plates or foils, in particular aluminum or zinc plates, which do not require any special treatment to achieve porous layers grown on; have been subjected, prepared with the diazo compounds. Apparently, when the plates prepared in this way are exposed, changes occur in the thin oxide layer that is already present on them, which are sufficient to provide the necessary differentiation in the properties of the individual areas of the printing plate. educate: The procedure is carried out exactly as specified in patent 857 888.
Beispiel Eine Aluminiumfolie .der für Druckzwecke üblichen Art, z. B. eine mit Sandstrahlgebläse argeraühte Aluminiumfolie, wird mit einer etwa i- .bis 3°/oigen Lösung der Diazoverbindung, die aus i Mol Di-azo,diphenylamin und i Mol Formaldehyd durch Kondensation in Schwefelsäure hergestellt worden ist, begossen. Es wird dann .der überschuß der Lösung a#bgeschleudert, worauf (die Folie ge- trocknet wird. Nach der Belichtung unter .einer Vorlage wird,die Folie mit einer fetten Farbe, wie sie für das Positivdruckverfahren üblich ist, eingerieben, talkumiert und mittels a°/aiger Schwefelsäure, welche mit einem Tampon aufgetragen wird.; entwickelt. Nach dem Abspülen mit Wasser kann die Folie zum Drucken benutzt werden.Example An aluminum foil of the type customary for printing purposes, e.g. B. an aluminum foil which has been preheated with a sandblasting blower is poured with an approximately i- .to 3% solution of the diazo compound, which has been prepared from 1 mole of di-azo, diphenylamine and 1 mole of formaldehyde by condensation in sulfuric acid. It is then bgeschleudert .the excess of the solution a #, which (the film is dried before. After the exposure, among .One template, the film having a rich color, as is customary for the positive pressure method, rubbed in, talcum and means Excessive sulfuric acid, which is applied with a pad .; developed. After rinsing with water, the foil can be used for printing.
Statt einer Aluminiumfolie kann bei .dem vorstehend beschriebenen Verfahren beispielsweise auch eine Zinkfolie oder Zinkplatte verwendet werden. Auch können an Stelle der erwähnten Diazoverbindung mit ähnlichem Erfolg andere Diazoverbindungen, wie sie in dem Patent 581 697 angeführt sind, benutzt werden. -Instead of an aluminum foil, the above-described Method, for example, a zinc foil or zinc plate can also be used. Even Instead of the diazo compound mentioned, other diazo compounds can be used with similar success, as recited in patent 581,697 can be used. -
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK1763D DE879055C (en) | 1943-04-03 | 1943-04-04 | Process for the production of printing forms |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1763 | 1943-04-03 | ||
| DEK1763D DE879055C (en) | 1943-04-03 | 1943-04-04 | Process for the production of printing forms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE879055C true DE879055C (en) | 1953-06-08 |
Family
ID=25748431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK1763D Expired DE879055C (en) | 1943-04-03 | 1943-04-04 | Process for the production of printing forms |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE879055C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943209C (en) * | 1952-08-16 | 1956-05-17 | Kalle & Co Ag | Photosensitive material for photomechanical reproductions |
| DE945673C (en) * | 1954-04-03 | 1956-07-12 | Kalle & Co Ag | Process for the photomechanical production of printing plates |
| DE950618C (en) * | 1954-04-03 | 1956-10-11 | Kalle & Co Ag | Process for the production of printing forms from light-sensitive material, which consists of a metallic carrier and a colloid-free light-sensitive layer adhering to it |
-
1943
- 1943-04-04 DE DEK1763D patent/DE879055C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943209C (en) * | 1952-08-16 | 1956-05-17 | Kalle & Co Ag | Photosensitive material for photomechanical reproductions |
| DE945673C (en) * | 1954-04-03 | 1956-07-12 | Kalle & Co Ag | Process for the photomechanical production of printing plates |
| DE950618C (en) * | 1954-04-03 | 1956-10-11 | Kalle & Co Ag | Process for the production of printing forms from light-sensitive material, which consists of a metallic carrier and a colloid-free light-sensitive layer adhering to it |
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