DE528640C - Process for the production of tanning images - Google Patents
Process for the production of tanning imagesInfo
- Publication number
- DE528640C DE528640C DE1930528640D DE528640DD DE528640C DE 528640 C DE528640 C DE 528640C DE 1930528640 D DE1930528640 D DE 1930528640D DE 528640D D DE528640D D DE 528640DD DE 528640 C DE528640 C DE 528640C
- Authority
- DE
- Germany
- Prior art keywords
- production
- tanning
- diazo compounds
- images
- light
- 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
Description
Verfahren zur Herstellung von Gerbbildern In Patent 522 636 ist die Herstellung von Gerbbildern mit Hilfe von lichtempfindlichen Diazoverbindungen beschrieben. Die Herstellung der Bilder erfolgt in der Weise, daß die Lichtzersetzungsprodukte der Diazoverbin-Jungen in Gegenwart von Kolloiden mit Chromaten und ähnlich wirkenden Stoffen, wie Hypobromit, in Reaktion gebracht werden, wodurch sich eine der Lichtwirkung entsprechende Gerbung des Kolloids ergibt.A process for the production of tanned images In Patent 522636 is described the production of tanned images by means of light-sensitive diazo compounds. The pictures are produced in such a way that the light decomposition products of the diazoverbin boys are brought into reaction in the presence of colloids with chromates and substances with a similar effect, such as hypobromite, resulting in a tanning of the colloid corresponding to the effect of light.
Es ist nun gefunden worden, daß eine ähnliche Gerbung erreicht «.erden kann, wenn man die Lichtzersetzungsprodukte der Diazoverbindungen in Gegenwart von Kolloiden, z. B. Gelatine, Albumin, Kasein, Leini, Cellulosehydrat usw., mit Diazoverbindungen, die mit den Zersetzungsprodukten zu kuppeln vermögen, -anstatt mit den in dem Hauptpatent 522 636 vorzugsweise benutzten Chromaten behandelt. Ob eine Diazoverbindung hierzu geeignet ist, läßt sich sofort an der Farbstoffbildung erkennen. Im allgemeinen kommen energisch kuppelnde Diazoverbindungen in Frage. Vorteilhaft setzt man die Kupplung begünstigende Verbindungen, z. B. Natriumacetat, zu. Vermutlich beruht die Gerbung des Kolloids auf einem physikalischen Vorgang, der durch den gebildeten Farbstoff hervorgerufen wird.It has now been found that a similar tanning is achieved can, if the light decomposition products of the diazo compounds in the presence of Colloids, e.g. B. gelatine, albumin, casein, linseed, cellulose hydrate etc., with diazo compounds, which are able to couple with the decomposition products, instead of with those in the main patent 522,636 preferentially used chromates treated. Whether a diazo connection to this is suitable can be recognized immediately by the dye formation. In general energetically coupling diazo compounds come into question. It is advantageous to use the Coupling favoring compounds, e.g. B. sodium acetate, too. Presumably based The tanning of the colloid is based on a physical process formed by the Dye is produced.
Die Anwendung dieses Verfahrens hat neben anderen noch den Vorteil, daß man die Verwendung der giftigen Chromate vermeidet. Beispiel Handelsübliches Pigmentpapier wird mit einer schwach essigsauren Lösung des Cadmiumchloriddoppelsalzes des r-Diazo-d.-äthylaminonaphthalins sensibilisiert undgetrocknet. Das getrocknete Papier wird belichtet und zusammen mit einem Stück Übertragungspapier in eine Lösung von 0,5 g Tetrazonitrobenzidinclilorzinkdoppelsalz und 3 g Natriumacetat in roo g Wasser eingetaucht, nach vollständiger Durchfeuchtung zusammen mit dem Übertragungspapier herausgenommen, auf dieses aufgepreßt und, wie im Pigmentdruck üblich, mit Wasser von etwa 4.o° C entwickelt.The use of this process has the advantage, among other things, of avoiding the use of the toxic chromates. Example Commercial pigment paper is sensitized with a weakly acetic acid solution of the cadmium chloride double salt of r-diazo-d.-ethylaminonaphthalene and dried. The dried paper is exposed to light and, together with a piece of transfer paper, immersed in a solution of 0.5 g of tetrazonitrobenzidine clilorzinc double salt and 3 g of sodium acetate in roo g of water Water of about 4.o ° C develops.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE528640T | 1930-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE528640C true DE528640C (en) | 1931-07-02 |
Family
ID=34109814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1930528640D Expired DE528640C (en) | 1930-04-08 | 1930-04-08 | Process for the production of tanning images |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE528640C (en) |
-
1930
- 1930-04-08 DE DE1930528640D patent/DE528640C/en not_active Expired
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