DE955927C - Photomechanical process for the production of etched metal printing forms using a two-layer process - Google Patents
Photomechanical process for the production of etched metal printing forms using a two-layer processInfo
- Publication number
- DE955927C DE955927C DE1952B0020248 DEB0020248A DE955927C DE 955927 C DE955927 C DE 955927C DE 1952B0020248 DE1952B0020248 DE 1952B0020248 DE B0020248 A DEB0020248 A DE B0020248A DE 955927 C DE955927 C DE 955927C
- Authority
- DE
- Germany
- Prior art keywords
- layer
- production
- printing forms
- metal printing
- etched metal
- 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
- 238000000034 method Methods 0.000 title claims description 24
- 229910052751 metal Inorganic materials 0.000 title claims description 11
- 239000002184 metal Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 239000004922 lacquer Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 22
- 210000003298 dental enamel Anatomy 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 2
- OIDPCXKPHYRNKH-UHFFFAOYSA-J chrome alum Chemical compound [K]OS(=O)(=O)O[Cr]1OS(=O)(=O)O1 OIDPCXKPHYRNKH-UHFFFAOYSA-J 0.000 description 2
- ZXJXZNDDNMQXFV-UHFFFAOYSA-M crystal violet Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1[C+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 ZXJXZNDDNMQXFV-UHFFFAOYSA-M 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000003946 protein process Effects 0.000 description 2
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- -1 B. in zinc Chemical class 0.000 description 1
- 241000206672 Gelidium Species 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 108010059642 isinglass Proteins 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- G03F7/04—Chromates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Description
Photomeehanisches Verfahren zur Serstelbung c;yätzfer Metagldxuucldormen mit Hilfe eines Zwerso-nchtverfahrens Bei der Herstellung von: Metalldruckformen nach Strichbildern oder gerasterten Vorlagen auf photochemischem Wege werden j e nach Art des 'zu ätzenden Metalls, an :die dasselbe während der Atzung schützende Schicht besondere Anforderungen gestellt.Photomechanical process for establishing c; yätzfer Metagldxuucldormen with the help of a midnight process in the production of: metal printing forms after line art or screened templates by photochemical means, j e depending on the type of metal to be etched: that which protects the same during etching Layer made special requirements.
Zu der bildmäßigen Übertragung kommen Heißemail- oder Kaltemailverfahren, Eiweiß- oder Zweischichtenverfahren in Frage. Bei dem ersterwähnten Verfahren wird das zu ätzende Metall mit einer Kolloidschicht (chromierter Fischleim od. dgl.) überzogen, die nach der Kopie mit Wasser entwickelt, vermittels Methylviolett angefärbt, eventuell durch Chromalaun gehärtet und schließlich, nach vorausgegangenem Trocknen, unter starker Erhitzung eingebrannt (emailliert) wird. Diese eingebrannte Kopierschicht ist als säurefest anzusprechen, jedoch der Arbeitsprozeß zeitraubend. Ein weiterer Nachteil beruht darin, daß das Einbrennen der Kopierschicht bei bestimmten Metallen, wie z. B. bei Zink, zu einer Änderung der Struktur führt, durch welche die Widerstands-, fähigkeit des Metalles leidet. Um dieser nachteiligen Auswirkung zu begegnen, wendet man Kaltemailverfahren an, welche auf einer Verwendung von chromiertem Schellack aufgebaut sind. Diese Methode ist in ihrer Anwendung einfacher als das Heißemailverfahren. Die lichtempfindliche Lösung ist aber teurer und der Arbeitsprozeß nicht so sicher. Das Schellackverfahren ist in gewissem Maße abhängig von der Witterung. Bei dem Eiweißverfahren wird das zu ätzende Metall zunächst mit der lichtempfindlichen Schicht überzogen, diese nach dem Kopieren mit Farbe eingewalzt, mit Asphalt eingestaubt und dann erst entwickelt. Der Arbeitsgang bei dem Eiweißverfahren ist empfindlich und umständlicher als bei den zuvor geschilderten Verfahren und bei feineren Rasterarbeiten wegen der Gefahr des Verlustes der Tonwerte in den Mitteltönen und Tiefenpartien nicht verwendbar.In addition to the transfer of images, there are hot enamel or cold enamel processes, Protein or two-layer process in question. In the first-mentioned method the metal to be etched with a colloid layer (chromed isinglass or the like) coated, which developed after the copy with water, colored by means of methyl violet, possibly hardened by chrome alum and finally, after previous drying, is baked (enamelled) under intense heat. This burnt-in copy layer is to be addressed as acid-resistant, but the work process is time-consuming. Another The disadvantage is that the burn-in of the copy layer with certain metals, such as B. in zinc, leads to a change in the structure, through which the resistance, ability of metal suffers. To counter this adverse effect, apply one cold enamel process, which is based on a use of chromed shellac are constructed. This method is easier to use than the hot enamel method. However, the photosensitive solution is more expensive and the working process is not so safe. The shellac process is to a certain extent dependent on the weather. In which Protein process is the metal to be etched first with the photosensitive Layer covered, rolled in with paint after copying, dusted with asphalt and only then developed. The protein process is a delicate operation and more laborious than with the processes described above and with finer grid work because of the risk of losing the tonal values in the midtones and low tones not useable.
Abweichend von den geschilderten drei Verfahren wickelt sich die Arbeitsweise bei dem Zweischichtenverfahren ,derart ab, daß das Metall zunächst mit -einer säurefesten Lackschicht überzogen und auf dieser die Bildschicht als Leimkopie aufgebracht wird. Die Leimkopie wird in gleicher Weise behandelt wie bei dem zuvor geschilderten Heißemailverfahren, d. h. sie wird nach dem Kopieren mit Wasser entwickelt, vermittels Methylviolett angefärbt, alsdann gewässert, in Chromalaun gehärtet, wiederum gewässert und getrocknet. Ist so die Leimkopie gewonnen, folgt die Übertragung derselben vermittels besonderen Entwicklers in die Lackschicht. Uni für die Folge bei etwaigem stärkerem Erwärmen ein Auftreten von Haarrissen zu vermeiden und auch eine gleichmäßige Einwirkung der Säure gewährleistet zu sehen, wird die Leimkopie, nachdem das Bild in die Lackschicht übertragen ist, mit ammoniakalischer Lösung entfernt. Das Zweischichtenverfahren hat den Vorteil, daß die Lackschicht, an welche keine Anforderung bezüglich Lichtempfindlichkeit gestellt wird, absolut säurefest gestaltet werden kann. Der gesamte Arbeitsgang ist aber umständlich, und daher mit mancherlei Fehlerquellen verknüpft.The way of working differs from the three procedures outlined above in the two-layer process, in such a way that the metal is initially acid-resistant with -an Coated lacquer layer and on this the image layer is applied as a glue copy. The glue copy is treated in the same way as with the previously described hot enamel process, d. H. it is developed after copying with water, by means of methyl violet stained, then watered, hardened in chrome alum, watered again and dried. If the glue copy is obtained in this way, it is transferred by means of a special one Developer in the paint layer. Uni for the consequence of any stronger heating to avoid the appearance of hairline cracks and also an even exposure The acid guaranteed to see the glue copy after the image is in the varnish layer is transferred, removed with ammoniacal solution. The two-layer process has the advantage that the lacquer layer, to which no requirement regarding photosensitivity is made, can be made absolutely acid-proof. The whole process but is cumbersome and therefore associated with various sources of error.
Gemäß der vorliegenden Erfindung wird die Arbeitsweise des Zweischichtenverfahrens ganz wesentlich dadurch vereinfacht, daß an Stelle der Leimschicht eine Chromgummischicht tritt und ein Entwickler in Anwendung kommt, der aus einem Gemisch von gesättigter Salzlösung, insbesondere Calciumchloridlösung und Milchsäure besteht und gleichzeitig Lacklösungsmittel, wie Ketone und Ester für die Lackschicht enthält, so daß die Entwicklung der Chromgummikopie ohne Unter-Brechung in einem Arbeitsgang durchgeführt werden kann, worauf die Ätzung des Metalls erfolgt. Als Beispiel eines geeigneten Entwicklers kann man eine gesättigte Calciumchlorid- oder Magnesiumchloridlösung verwenden, die als Lacklösungsmittel Äthylglycol und Äthylglycolacetat im Verhältnis i : i enthält. Da die Chromgummischicht nur zur Aufnahme der Kopie und deren späterer Übertragung in die Lackschicht dient, nicht aber als Schutzschicht beim Ätzen, kann sie entsprechend .dünn aufgebracht sein. Daraus folgt nicht nur ein entsprechend schnelleres Trocknen der lichtempfindlichen Schicht, sondern, auch eine kurze, nach-Sekunden zählende Kopierzeit und in der Folge ein schnelles Entwickeln, da der Entwickler die dünne Chromgummischicht schnell durchdringt. Ist die Entwicklung beider Schichten erreicht, wird die Chromgummikopie zufolge ihrer Empfindlichkeit gegen Wasser leicht und schnell und nur durch Wasser abgebraust, und es kann, da jede weitere Behandlung entfällt, sofort mit dem Atzen begonnen werden.In accordance with the present invention, the operation becomes the two-layer process very much simplified by the fact that instead of the glue layer, a chrome rubber layer occurs and a developer is used that consists of a mixture of saturated Saline solution, especially calcium chloride solution and lactic acid, and at the same time Contains paint solvents such as ketones and esters for the paint layer, so that the Development of the chrome rubber copy without interruption carried out in one operation can be, whereupon the etching of the metal takes place. As an example of a suitable one The developer can be a saturated calcium chloride or magnesium chloride solution Use the ratio of ethylglycol and ethylglycol acetate as paint solvents i: i contains. Because the chrome rubber layer is only used to accommodate the copy and its later It can be transferred into the lacquer layer, but not as a protective layer during etching they should be applied thinly accordingly. This does not just mean a corresponding one faster drying of the photosensitive layer, but also a short, after-seconds counting copy time and, as a result, rapid development, since the developer quickly penetrates the thin layer of chrome rubber. Is the development of both layers reached, the chrome rubber copy becomes easy due to its sensitivity to water and washed off quickly and only by water, and it can, as any further treatment not applicable, etching can be started immediately.
Da das Überziehen des Metalls mit dem säurefesten Lack maschinell und auf Monate im voraus erfolgen kann, nimmt der eigentliche Arbeitsprozeß zur Herstellung einer ätzfähigen und dabei absolut säurefesten Kopie nur ein. Bruchteil der Zeit in Anspruch, wie sie bei anderen Arbeitsmethoden in Frage kommt.As the coating of the metal with the acid-proof varnish by machine and can be done months in advance, the actual work process increases Production of an etchable and at the same time absolutely acid-proof copy only one. Fraction the time as it is possible with other working methods.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1952B0020248 DE955927C (en) | 1952-05-03 | 1952-05-03 | Photomechanical process for the production of etched metal printing forms using a two-layer process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1952B0020248 DE955927C (en) | 1952-05-03 | 1952-05-03 | Photomechanical process for the production of etched metal printing forms using a two-layer process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE955927C true DE955927C (en) | 1957-01-10 |
Family
ID=6960277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1952B0020248 Expired DE955927C (en) | 1952-05-03 | 1952-05-03 | Photomechanical process for the production of etched metal printing forms using a two-layer process |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE955927C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE379301C (en) * | 1921-07-09 | 1923-08-21 | Schwarz Maschb Ges M B H Geb | Process for direct copying of all kinds of documents onto metal plates carrying a rubber chromate layer |
| DE525534C (en) * | 1930-07-09 | 1931-05-26 | Klimsch & Co | Process for developing chromate shellac copies |
| DE543963C (en) * | 1927-11-14 | 1932-02-12 | Carl Wache | Process for the production of printing forms for stone and offset printing by direct copying of positive templates |
| DE711043C (en) * | 1935-08-09 | 1941-09-25 | Bekk & Kaulen Chem Fab G M B H | Process for producing planographic printing forms by projecting screened images |
-
1952
- 1952-05-03 DE DE1952B0020248 patent/DE955927C/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE379301C (en) * | 1921-07-09 | 1923-08-21 | Schwarz Maschb Ges M B H Geb | Process for direct copying of all kinds of documents onto metal plates carrying a rubber chromate layer |
| DE543963C (en) * | 1927-11-14 | 1932-02-12 | Carl Wache | Process for the production of printing forms for stone and offset printing by direct copying of positive templates |
| DE525534C (en) * | 1930-07-09 | 1931-05-26 | Klimsch & Co | Process for developing chromate shellac copies |
| DE711043C (en) * | 1935-08-09 | 1941-09-25 | Bekk & Kaulen Chem Fab G M B H | Process for producing planographic printing forms by projecting screened images |
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