DE587171C - Process for the indirect production of photographic dye images - Google Patents

Process for the indirect production of photographic dye images

Info

Publication number
DE587171C
DE587171C DEG78815D DEG0078815D DE587171C DE 587171 C DE587171 C DE 587171C DE G78815 D DEG78815 D DE G78815D DE G0078815 D DEG0078815 D DE G0078815D DE 587171 C DE587171 C DE 587171C
Authority
DE
Germany
Prior art keywords
leuco
dye
dye images
indirect production
photographic dye
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
Application number
DEG78815D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaspar Bela
Original Assignee
Gaspar Bela
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE1930G0006730 external-priority patent/DE528318C/en
Application filed by Gaspar Bela filed Critical Gaspar Bela
Priority to DEG78815D priority Critical patent/DE587171C/en
Application granted granted Critical
Publication of DE587171C publication Critical patent/DE587171C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/26Silver halide emulsions for subtractive colour processes

Description

Verfahren zur mittelbaren Herstellung photographischer Farbstoffbilder Zusatz zum Patent 528 318 Gegenstand des Patents 5 ä 83i8 ist ein Verfahren zur Herstellung photographischer Farbstoffbilder in einer oder mehreren Farben, bei dem Leukokörper zur lichtempfindlichen Metallsalzemulsion (insbesondere Silbersalzemulsion) zugesetzt und die Leuk okörper nachträglich in Farbstoffe überführt werden.Process for the indirect production of photographic dye images Addition to patent 528 318 The subject of patent 5 ä 83i8 is a method for Production of photographic dye images in one or more colors the leuco body to the light-sensitive metal salt emulsion (especially silver salt emulsion) added and the leukocytes are subsequently converted into dyes.

In der vorliegenden Erfindung soll gezeigt werden, daß, es möglich ist, dieses Verfahren noch weiter zu vereinfachen.In the present invention it is to be shown that it is possible is to simplify this process even further.

Nach dem Hauptpatent findet die Umwandlung des Metallniederschlagbildes in oxydierend, reduzierend, kondensierend oder verseifend wirkende Verbindungen statt. Beispielsweise das Silberbild wurde durch ein Bleichromatbild ersetzt, aus dieser Verbindung die oxydierende Chromsäure in einer sauren Lösung freigemacht und zur Oxydation benutzt.According to the main patent, the transformation of the metal deposit takes place into oxidizing, reducing, condensing or saponifying compounds instead of. For example, the silver image has been replaced by a lead chromate image of this compound the oxidizing chromic acid was released in an acidic solution and used for oxidation.

Es wurde nun gefunden, daß@ -die überführung des Silberbildes in ein Farbstoffbild nach dem Hauptpatent viel einfacher und rascher zu bewerkstelligen ist. Man kann das Silberbild zu diesem Zwecke in eine Verbindung überführen, welche selbst nicht auf die in der Schicht vorhandenen Leukokörper wirkt. Man kann das Silberbild in eine katalysierend wirkende Verbindung überführen, wie dieses von L u t h e r und v. H,o 1 -leben für Farbstoffe enthaltende Schichten beschrieben worden ist, und dann nachher die Leukokörper durch Baden in Lösungen von oxydierenden Mitteln in ein. Farbstoffbild überführen. Der Farbstoff entsteht hier nur an den Stellen, an denen der Katalysator, vorhanden ist, und zwar proportional der Menge des vorhandenen Katalysators bzw. des ursprünglich vorhanden gewesenen metallischen Silberniederschlages. Beispiel Das Silberbild, welches in der Schicht die Leukokörper enthält, wird in bekannter Weise in Vanadylferrocyanid überführt, welches als Sauerstoffüberträger bzw. Katalysator wirkt und nachher in einer schwefelsauren Lösung von Kaliumbromatoder Natriumchlorat in den Farbstoff überführt wird. Geeignete Leukokörper .sind z. B. der schwefelsaure Ester aus den Leukoverbindungen des 6 # 6'-Dibromdimethyl-bis-thionaphthenindigo und H exabromindigo.It has now been found that the conversion of the silver image into a dye image according to the main patent is much easier and quicker to accomplish. For this purpose the silver image can be converted into a compound which itself does not affect the leuco bodies present in the layer. The silver image can be converted into a catalyzing compound, as described by Luther and v. H, o 1 -leben has been described for layers containing dyes, and then afterwards the leuco bodies by bathing in solutions of oxidizing agents in a. Transfer dye image. The dye is only produced in the places where the catalyst is present, proportional to the amount of catalyst present or the amount of metallic silver deposit that was originally present. EXAMPLE The silver image, which contains the leuco bodies in the layer, is converted in a known manner into vanadyl ferrocyanide, which acts as an oxygen carrier or catalyst and is then converted into the dye in a sulfuric acid solution of potassium bromate or sodium chlorate. Suitable leuco bodies .sind z. B. the sulfuric acid ester from the leuco compounds of 6 # 6'-dibromodimethyl-bis-thionaphthenindigo and H exabromindigo.

Die Anwendung dieser Bäder bzw. die Überführung in den Farbstoff kann ,auch nach dem Entwickeln, d. h. vor der Fixierung :erfolgen.The use of these baths or the conversion into the dye can , even after developing, d. H. before fixation: take place.

Nach dem Hauptpatent ist- es möglich, daß die Bilder nach der Bildung des Farbstoffes noch einem der bekannten Farbstofftonungs-oder Beizverfahren usw. unterworfen werden. Es ist hier noch eine Ausführungsform gefunden worden, indem es möglich ist, gleichzeitig mit der Überführung der Leukokörper in die Farbstoffe oder vorher durch auf das Gelatinebild gerbend wirkende Bäder einen örtlich unterschiedlichen Gerbungszustand der Schicht herbeizuführen und dadurch nachträglich mit Farbstoffen, z. B. Pinatypiefarbstoffen, ,anzufärben. Dadurch kann man eine Schichtanordnung benutzen, um zu mehrfarbigen Bildern zu gelangen, bei weicher man zwei oder mehrere Teilschichten mit verschiedener Farbenempfindlichkeit benutzt, wobei die untenstehenden Teilschichten Halogensilber und die Leukoester usw. enthalten, während die obere Schicht nur Halogensilber enthält, und nachträglich, wie oben angegeben, einfärbt.According to the main patent it is possible that the images after formation of the dye or one of the known dye toning or Pickling process etc. are subjected. Another embodiment has been found here, in that it is possible at the same time as the conversion of the leuco bodies into the dyes or beforehand by baths tanning the gelatin image a locally different one To bring about the tanned state of the layer and thus subsequently with dyes, z. B. Pinatypie dyes, to color. This allows a layered arrangement use to get multi-colored images, with which one has two or more Partial layers with different color sensitivity are used, the ones below Partial layers contain halogen silver and the leuco esters, etc., while the top Layer contains only halogen silver, and subsequently colored as indicated above.

Claims (1)

PATRNTANSPRÜCHI;: i. Verfahren zur mittelbaren Herstellung photographischer Farbstoffbilder durch Zusatz von Leukoestern, -estersalzen und -äthern zur lichtempfindlichen Silbersalzemulsion gemäß Patent 528318, dadurch gekennzeichnet, daß; das metallische Silberbild in eine katalysierend wirkende Verbindung umgewandelt wird, wobei aus den Leukokörpern der Farbstoff durch Oxydation erzeugt wird. a. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß bei mehreren Emulsionsschichten mit verschiedener Farbenempfindlichkeit Leukokörper nur in einer oder nur einem Teil der Emulsionsschichten zugesetzt werden.PATRNT CLAIMS: i. Process for the indirect production of photographic Dye images by adding leuco esters, leuco ester salts and ethers to the light-sensitive Silver salt emulsion according to patent 528318, characterized in that; the metallic Silver image is converted into a catalyzing compound, whereby from the leuco bodies the dye is produced by oxidation. a. Method according to claim i, characterized in that with several emulsion layers with different Color sensitivity Leuco bodies only in one or only part of the emulsion layers can be added.
DEG78815D 1930-03-01 1931-02-12 Process for the indirect production of photographic dye images Expired DE587171C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG78815D DE587171C (en) 1930-03-01 1931-02-12 Process for the indirect production of photographic dye images

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1930G0006730 DE528318C (en) 1930-03-01 1930-03-01 Process for the indirect production of photographic dye images by adding leuco corpses to the light-sensitive metal salt emulsion (in particular silver salt emulsion)
DEG78815D DE587171C (en) 1930-03-01 1931-02-12 Process for the indirect production of photographic dye images

Publications (1)

Publication Number Publication Date
DE587171C true DE587171C (en) 1933-10-31

Family

ID=25979100

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG78815D Expired DE587171C (en) 1930-03-01 1931-02-12 Process for the indirect production of photographic dye images

Country Status (1)

Country Link
DE (1) DE587171C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020943A (en) * 1988-12-30 1991-06-04 Bp Chemicals Limited Pipe for the pneumatic transport of polymer particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020943A (en) * 1988-12-30 1991-06-04 Bp Chemicals Limited Pipe for the pneumatic transport of polymer particles

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