DE743262C - Process for avoiding color haze during chromogenic development - Google Patents

Process for avoiding color haze during chromogenic development

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Publication number
DE743262C
DE743262C DEI62380D DEI0062380D DE743262C DE 743262 C DE743262 C DE 743262C DE I62380 D DEI62380 D DE I62380D DE I0062380 D DEI0062380 D DE I0062380D DE 743262 C DE743262 C DE 743262C
Authority
DE
Germany
Prior art keywords
color
developer
layers
haze during
color haze
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
DEI62380D
Other languages
German (de)
Inventor
Dr Erwin Trabert
Dr Edith Weyde
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI62380D priority Critical patent/DE743262C/en
Application granted granted Critical
Publication of DE743262C publication Critical patent/DE743262C/en
Expired legal-status Critical Current

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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
    • G03C7/30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/407Development processes or agents therefor
    • G03C7/413Developers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

Verfahren zur-Vermeidung von Farbschleiern bei der chromogenen Entwicklung In Mehrschichtmaterialien, die zur Herstellung von farbigen photographischen Bildern nach dem Verfahren der Farbentwicklung, wobei die Halogensilberemülsionendiffusionsechte Farbstoffbildner enthalten, dienen, werden zwischen den Halogensilberernulsionsschichten Filterschichten verwendet, die beispielsweise aus koloidalem Silber be-.,tehen. So kann z. B. zwischen der oberen -blauempfindlichen und der mittleren ortliocliroinatischen Schicht ein koloidales Silber enthaltendes gelbes Filter angeordnet -werden. Es hat sich jedoch gezeigt, daß in der Grenzzone zwischen der Filterschicht und den anliegenden rmulsionsschichten sich unerwiinschte Farbschleier bilden.Process for avoiding color haze during chromogenic development In multilayer materials used in the production of color photographic images according to the method of color development, wherein the halogen silver enamel ion diffusion real Dye formers contain, serve, are between the halide silver emulsion layers Filter layers used, which for example be made of coloidal silver -., Tehen. So z. B. between the upper -blue-sensitive and the middle ortliocliroinatic Layer a yellow filter containing coloidal silver -be placed. It However, it has been shown that in the boundary zone between the filter layer and the Adjacent emulsion layers result in undesired color haze.

Es wurde nun gefunden, daß dieser Farbschleier vermieden werden kann, -wenn die zur Farbentwicklung dienenden Entwicklerlösungen einen Zusatz von Reduktionsmitteln erhalten, die leichter oxydierbar sind als die farbkuppelnde Entwicklersubstanz. Solche Reduktionsmittel sind beispielsweise Hydroxylamin und seine Derivate sowie organische Hydrazinverbindungen, beispt els-ve@isePh@enyllivdrazinsulfon.säure. Als Entwicklersubstanzen -werden bekanntlich p-Phenylen.d.iamin und dessen im Kern oder in einer Amdnogruppe oder sowohl im Kern als euch in einer Arninogruppe substituierte Derivate, ferner p Aminoplienol und dessen Substitutionsprod ukte verwendet.It has now been found that this color haze can be avoided, -if the developer solutions used for color development have an addition of reducing agents obtained that are more easily oxidized than the color-coupling developer substance. Such reducing agents include hydroxylamine and its derivatives as well organic hydrazine compounds, for example els-ve @ isePh @ enyllivdrazinesulfonic acid. It is known that p-phenylene.d.iamine and its core are used as developer substances or substituted in an amino group or both in the nucleus and you in an amino group Derivatives, also p aminoplienol and its substitution products are used.

Diese Entwicklerlösungen dienen vornehm-]ich zur Farbentwicklung von Mehrschichteün.aterialien, die diffusionsechte Farbstoffbildner enthalten, -wie sie -beispielsweise in der »7eitsclirift für Photographische Korrespondenz« 1939, Seite 21, linke Spalte, Zeile 23, bis rechte Spalte, Zeile 3o, beschrieben sind. Als diffusionsechte Farbstoffkomponenten kommen auch solche in Frage, die einen Polypeptidres.t, einen Kohlehydratrest oder als Substituenten ein L'inwandlungsprodukt eines natürlichen Harzes oder Sterin bzw. Gallensäurereste enthalten. Die Farbstoffbildner können z. B. auch durch hydroaromatische oder hydrierte heterocycliscl>@ Substituenten diffusionsfest gemacht sein. jedoch können diese Entwicklerlösungen auch für alle anderen photographischen Materialien verwendet werden, in denen das Farbbild durch Farbentwicklung erzeugt wird, da durch den Zusatz von Reduktionsmitteln gemäß dem v orliegenden Verfahren eine Schädigung der Wirkung <ies Farbentwicklers nicht eintritt.These developer solutions are mainly used for the color development of Multilayer green materials that contain non-diffusing dye formers, such as she -for example in the "7eitsclirift für Photographische Korrespondenz" 1939, Page 21, left column, line 23 to the right column, line 3o are. Also suitable as non-diffusion dye components are those which a polypeptide residue, a carbohydrate residue or, as a substituent, a conversion product a natural resin or sterol or bile acid residues. The dye formers can e.g. B. also by hydroaromatic or hydrogenated heterocyclic substituents be made diffusion resistant. however, these developer solutions can also be for everyone Other photographic materials are used in which the color image is through Color development is generated because the addition of reducing agents according to the The present process does not damage the effect of this color developer entry.

Es ist zwar schon bekannt, Farbentwicklern, die gleichzeitig die Entwicklersubstanz und die Farbstoftkomponente enthalten, Formaldehy,dsulfoxylat, Hydrazin, Hydroxylamin zuzusetzen, um die unter Einwirkung von Luftsauerstoff eintretende unerwünschte Farbstoffbildung ini Entwickler zu verliiiiclern. Im Gegensatz hierzu kann bei den für Glas vorliegende Verfahren verwendeten Entwicklern eine Farbstoffbildung unter der Einwirkung von Luftsauerstoff nicht eintreten, da in diesem Fall im Entwickler die Farbstoffkomponente fehlt. Im vorliegenden Fall erübrigt es sich also, zur Haltbarmachung des Entwicklers Reduktionsmittel zuzusetzen. Die Reduktionsmittel dienen bei dem vorliegenden Verfahren vielmehr nur zur Verhinderung des Farbschleiers, der durch das in der Gelbflterschicht vorhandene kollodiale Silber verursacht wir#.l. Zur Ausübung des Verfahrens können beispielsweise Entwickler folgender Zusammensetzung verwendet werden: Beispiel I. Wasser ioooccin, Pottasche Sog, Diäthvl-p-phenylendiamin 3 g, Bromkali i g, H_vdroxylaminchlorhvdrat 5 g.It is already known, color developers, which at the same time the developer substance and the dye component contain formaldehyde, sulfoxylate, hydrazine, hydroxylamine to add to the undesired occurring under the action of atmospheric oxygen Loss of dye formation in developer. In contrast, the For the processes present in glass, developers used dye formation under exposure to atmospheric oxygen does not occur, as in this case in the developer the dye component is absent. In the present case, there is no need for preservation of the developer to add reducing agents. The reducing agents are used in the Rather, present method only to prevent the color haze caused by the colloidal silver present in the yellow filter layer causes us # .l. To the The process can be carried out, for example, by developers of the following composition are used: Example I. Water ioooccin, potash suction, diethvl-p-phenylenediamine 3 g, potassium bromide i g, hydroxylamine chlorohydrate 5 g.

Beispiel 1I. Wasser iooo ccm. Pottasche jog, Diäthyl-p-phenz-lendiamin 3 g, Bromkali i g, HydroxylaminchlorhyBrat 3 g, Natriumsulfit sicc. 3 g.Example 1I. Water iooo ccm. Potash jog, diethyl-p-phenz-lenediamine 3 g, potassium bromide i g, hydroxylamine chlorohydrate 3 g, sodium sulfite sicc. 3 g.

Beispiel IIl. . Wasser iooo ccm, Pottasche -5og, Diiithyl-p-phenvlenctiamin 3 g, Bromkali i g, Phenylhyrdazin-3-su.lfonsäure 3 g.Example IIl. . 100 cc of water, potash -5og, diithyl-p-phenyl-en-diamine 3 g, potassium bromide i g, phenylhydrazine-3-sulfonic acid 3 g.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Vermeidung von Farbschleiern bei der Farbentwicklung eine mehrschichtigen Materials für Farbenpliotogr aphie, wobei die Far bstoffkomponenten in den Schichten enthalten sind, und als Gelbfilter Schichten mit kolloidalem Silber angeordnet sind, dadurch gekennzeichnet, daß man dem Farbentwickler Reduktionsmittel zusetzt, die leichter oxvdierbar sind als die farbkuppelnde Entivicklersubstanz. PATENT CLAIMS: i. A method of avoiding color haze during color development of a multilayered material for color pliotography, the dye components being contained in the layers, and layers of colloidal silver being arranged as yellow filter layers, characterized in that reducing agents are added to the color developer which are easier to oxidize than the color coupling agent. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß man dein Farbentwickler Ilydrotvlamin oder dessen Derivate oder organische H_vdrazim-erbindungeii zusetzt. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: britische Patentschrift . . . . . . N -r. -162 i-lo.2. The method according to claim i, characterized in that that you have your color developer Ilydrotvlamin or its derivatives or organic H_vdrazim compounds clogs. To distinguish the subject of the application from the state of the art, im The following pamphlet has been considered for the granting procedure: British Patent specification. . . . . . No. -162 i-lo.
DEI62380D 1938-09-02 1938-09-03 Process for avoiding color haze during chromogenic development Expired DE743262C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI62380D DE743262C (en) 1938-09-02 1938-09-03 Process for avoiding color haze during chromogenic development

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEI0062380 1938-09-02
DEI62380D DE743262C (en) 1938-09-02 1938-09-03 Process for avoiding color haze during chromogenic development
DEI0065112 1939-07-11

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DE743262C true DE743262C (en) 1943-12-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967543C (en) * 1955-05-07 1957-11-21 C Schleussner Fotowerke G M B Process for the production of photographic direct-positive single and multicolor images by means of chromogenic development

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462140A (en) * 1935-09-07 1937-03-03 Kodak Ltd Improvements in photographic developing solutions for colour photography

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462140A (en) * 1935-09-07 1937-03-03 Kodak Ltd Improvements in photographic developing solutions for colour photography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967543C (en) * 1955-05-07 1957-11-21 C Schleussner Fotowerke G M B Process for the production of photographic direct-positive single and multicolor images by means of chromogenic development

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