DE1056478B - Process for preserving color photographic color developer solutions - Google Patents
Process for preserving color photographic color developer solutionsInfo
- Publication number
- DE1056478B DE1056478B DEE14777A DEE0014777A DE1056478B DE 1056478 B DE1056478 B DE 1056478B DE E14777 A DEE14777 A DE E14777A DE E0014777 A DEE0014777 A DE E0014777A DE 1056478 B DE1056478 B DE 1056478B
- Authority
- DE
- Germany
- Prior art keywords
- sodium
- developer
- minutes
- color
- solution
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
- G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Verfahren zum Haltbarmachen farbphotographischer Farbentwicklerlösungen, die im wesentlichen aus Alkalisulfit, einem Hydroxylaminsalz, einem Äthylendiaminsalz und einer als Farbentwicklersubstanz dienenden Phenylendiaminverbindung bestehen.The invention relates to a method for preserving color photographic color developer solutions, which consists essentially of alkali metal sulfite, a hydroxylamine salt, an ethylene diamine salt and one as a color developing agent Serving phenylenediamine compound exist.
Farbentwicklerlösungen, die neben der üblichen Farbentwicklersubstanz ein Alkalisulfit, ein Hydroxylaminsalz und ein Äthylendiaminsalz enthalten, sind bekannt. Solche Farbentwicklerlösungen haben sich an sich als recht brauchbar erwiesen, doch haben sie den Nachteil, daß sie sehr schlecht haltbar sind. Man hat versucht, ihre Haltbarkeit dadurch zu verbessern, daß man die Lagerungsgefäße sorgfältig verstöpselt und dadurch eine Berührung mit Luft ausgeschlossen hat. Auch unter solchen Umständen ist die Haltbarkeit der Lösungen aber noch keineswegs befriedigend.Color developer solutions which, in addition to the usual color developer substance, include an alkali metal sulfite, a hydroxylamine salt and containing an ethylene diamine salt are known. Such color developing solutions have per se as Proven to be quite useful, but they have the disadvantage that they are very poorly durable. You tried theirs Improve shelf life by carefully plugging and touching the storage vessels with air excluded. Even under such circumstances, the durability of the solutions is still by no means satisfactory.
Um den damit verbundenen Unzuträglichkeiten abzuhelfen, wurde zunächst untersucht, worauf die Abnahme der Haltbarkeit eigentlich zurückzuführen ist. (Man hatte bisher, ohne dafür einen Beweis zu haben, angenommen, daß die Oxydation des Farbentwicklers die Schuld daran trägt.) Die Untersuchungen haben ergeben, daß für die bei der Lagerung abnehmende Wirksamkeit solcher Entwicklerlösungen eine Reaktion zwischen dem Alkalisulfit, dem Hydroxylaminsalz und dem Äthylendiaminsalz verantwortlich ist. Daß dabei die Oxydation des Alkalisulfits und des Hydroxylaminsalzes durch Luftsauerstoff nur eine untergeordnete Rolle spielt, beweist ein Vergleich' der Konzentrationsverluste bezüglich dieser Substanzen bei 2 wöchiger Lagerung in einem offenen Behälter einerseits und einem verschlossenen Behälter andererseits. Dabei zeigt sich, daß der Konzentrationsverlust wohl in dem offenen Behälter etwas größer ist als in dem verschlossenen Behälter, daß aber ganz offensichtlich der größte Teil des Konzentrationsverlustes nicht auf den Luftzutritt zurückzuführen ist.In order to remedy the associated inconveniences, it was first examined what the decrease was for the durability is actually due. (It had previously been assumed, without having any proof of this, That the oxidation of the color developer is to blame.) The investigations have shown that for the the effectiveness of such developer solutions decreases during storage a reaction between the alkali sulfite, the hydroxylamine salt and the ethylenediamine salt is responsible. That there is the oxidation of the alkali sulfite and the hydroxylamine salt plays only a subordinate role due to atmospheric oxygen, a comparison of the Loss of concentration with regard to these substances during storage for 2 weeks in an open container on the one hand and a sealed container on the other hand. It turns out that the loss of concentration is probably in the open container is slightly larger than in the closed container, but that obviously the Most of the loss of concentration is not due to the ingress of air.
Der Erfindung liegt nun die Aufgabe zugrunde, ein Verfahren zu entwickeln, mit dem es möglich ist, diese Reaktion zu unterbinden und die betroffenen Farbentwicklerlösungen so haltbarer zu machen.The invention is now based on the object of developing a method with which it is possible to achieve this To prevent reaction and to make the affected color developer solutions more durable.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß man den Farbentwicklerlösungen 1,3-Diamino-2 -propanoltetraessigsäure in Form einer alkalischen Lösung zufügt.According to the invention, this object is achieved by adding 1,3-diamino-2 -propanol tetraacetic acid in the form of an alkaline solution.
Zwar ist es bekannt, l,3-Diamino-2-propanoltetraessigsäure zu anderen Zwecken Schwarzweißentwicklerlösungen zuzusetzen. Eine stabilisierende Wirkung dieses Reagens ist aber bisher nie beobachtet worden.It is known to use 1,3-diamino-2-propanol tetraacetic acid for other purposes with black and white developer solutions to add. However, a stabilizing effect of this reagent has never been observed so far.
Erfindungsgemäß gelingt es nun überraschenderweise, Farbentwicklerlösungen durch solche Zusätze haltbarer zu machen.According to the invention, it is now surprisingly possible to make color developer solutions more durable by such additives close.
Als Farbentwicklersubstanzen für die zu stabilisierenden Farbentwicklerlösungen sind z. B. die Hydrocliloride
Verfahren zum Haltbarmachen,
farbphotographischer Farbentwicklerlösungen As color developer substances for the color developer solutions to be stabilized, for. B. the Hydrocliloride methods of preservation,
color photographic color developing solutions
Anmelder:Applicant:
Eastman Kodak Company,
Rochester, N. Y. (V. St. A.)Eastman Kodak Company,
Rochester, NY (V. St. A.)
Vertreter: Dr.-Ing. W. Wolff, Patentanwalt,
Stuttgart-N1 Lange Str. 51Representative: Dr.-Ing. W. Wolff, patent attorney,
Stuttgart-N 1 Lange Str. 51
Beanspruchte Priorität:
V. St. v. Amerika vom 5. November 1956Claimed priority:
V. St. v. America November 5, 1956
Donald Joseph Kridel, Rochester, N. Y. (V. St. A.),
ist als Erfinder genannt wordenDonald Joseph Kridel, Rochester, NY (V. St. A.),
has been named as the inventor
oder Sulfate des N,N-Diäthyl-p-phenylendiamins, N-Methyl - ρ - phenylendiamin, N,N - Dimethyl -ρ - phenylendiamin, 2-Amino-5-diäthylarninotoluol, 4-Amino-N-äthyl-N-[j3-methansmfonaimdoäthyl]-m-toluidin usw. besonders geeignet.or sulfates of N, N-diethyl-p-phenylenediamine, N-methyl - ρ - phenylenediamine, N, N - dimethyl -ρ - phenylenediamine, 2-Amino-5-diethylarninotoluene, 4-amino-N-ethyl-N- [j3-methanesulfonamdoethyl] -m-toluidine etc. particularly suitable.
Die Menge der der Entwicklermischung zugegebenen 1,3-Diamino-2-propanoltetraessigsäure schwankt etwas in Abhängigkeit von der verwendeten speziellen Entwicklersubstanz und von den Mengen, in denen die anderen Bestandteile vorliegen. Im allgemeinen liegt die Konzentration der Tetraessigsäure etwa zwischen 0,2 g bis 2,0 g je Liter.The amount of 1,3-diamino-2-propanol tetraacetic acid added to the developer mix varies somewhat depending on the particular developer substance used and on the amounts in which the other components are present. In general, the concentration of tetraacetic acid is between about 0.2 g up to 2.0 g per liter.
Die Vorteile der Erfindung können folgendermaßen erläutert werden:The advantages of the invention can be explained as follows:
Eine wäßrige Lösung, die als Lösung A bezeichnet wird, wurde in der folgenden Zusammensetzung hergestellt :An aqueous solution, referred to as Solution A, was prepared in the following composition :
Natriummetaborat Octahydrat 40,1 gSodium metaborate octahydrate 40.1 g
Natriumsulfit 2,0 gSodium sulfite 2.0 g
Farbenentwickler*) 4,0 gColor developer *) 4.0 g
Hydroxylammsulfat 4,7 gHydroxylammsulfate 4.7 g
ÄthylenÄammsulfat 6,5 gEthylene Lamb Sulphate 6.5 g
Wasser auf 11Water on 11
*) = 4-Amino-N-äthyl-N-r^-methansiiIfonamidoäthyl]-m-toluidinsesquisulfatmonoliydrat *) = 4-Amino-N-ethyl-N-r ^ -methanesiiifonamidoethyl] -m-toluidine sesquisulfate monolydrate
309 508/38?309 508/38?
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US620194A US2875049A (en) | 1956-11-05 | 1956-11-05 | Stabilized photographic developers for color photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1056478B true DE1056478B (en) | 1959-04-30 |
Family
ID=24484969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE14777A Pending DE1056478B (en) | 1956-11-05 | 1957-10-11 | Process for preserving color photographic color developer solutions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2875049A (en) |
| BE (1) | BE562088A (en) |
| DE (1) | DE1056478B (en) |
| FR (1) | FR1185725A (en) |
| GB (1) | GB878675A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE613239A (en) * | 1961-02-01 | |||
| BE638633A (en) * | 1962-10-18 | |||
| US3335004A (en) * | 1963-12-09 | 1967-08-08 | Eastman Kodak Co | Method for stabilization processing of color emulsions |
| US3462269A (en) * | 1966-08-01 | 1969-08-19 | Minnesota Mining & Mfg | Stabilized color developing solution containing diethylenetriamine pentaacetic acid |
| US3647452A (en) * | 1970-07-06 | 1972-03-07 | Eastman Kodak Co | Direct reversal photographic element and process |
| USRE30064E (en) * | 1976-02-24 | 1979-08-07 | Fuji Photo Film Co., Ltd. | Process for color photographic processing |
| GB1570930A (en) * | 1976-02-24 | 1980-07-09 | Fuji Photo Film Co Ltd | Colour photographic processing of silver halide material |
| US4264716A (en) * | 1979-09-10 | 1981-04-28 | Eastman Kodak Company | Photographic color developer compositions |
| US4252892A (en) * | 1979-12-10 | 1981-02-24 | Eastman Kodak Company | Photographic color developer compositions |
| DE3366752D1 (en) * | 1982-04-29 | 1986-11-13 | Eastman Kodak Co | Stabilised photographic color developer compositions and processes |
| US4882264A (en) * | 1984-01-20 | 1989-11-21 | Olin Hunt Specialty Products Inc. | Color developer composition |
| US4892804A (en) * | 1986-01-24 | 1990-01-09 | Eastman Kodak Company | Photographic color developing compositions which are especially useful with high chloride photographic elements |
| EP0255292B1 (en) * | 1986-07-26 | 1994-05-11 | Konica Corporation | Processing solution of light-sensitive silver halide color photographic material and processing method of the same |
| EP0255734B1 (en) * | 1986-08-08 | 1993-01-13 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material and a color developing composition |
| US4975357A (en) * | 1989-05-23 | 1990-12-04 | Eastman Kodak Company | Method of photographic color development using polyhydroxy compounds, metal ions and sequestering agents |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2286662A (en) * | 1938-09-02 | 1942-06-16 | Gen Aniline & Film Corp | Color photography |
| DE866605C (en) * | 1944-11-27 | 1953-02-12 | Bayer Ag | Process for making photographic attenuator and bleach-fix baths |
| US2656273A (en) * | 1952-02-12 | 1953-10-20 | Eastman Kodak Co | Photographic developers containing diamino-propanol tetracetic acid |
| US2657139A (en) * | 1950-12-22 | 1953-10-27 | Gen Aniline & Film Corp | Process of removing color developer stain in azine dye images |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2555127A (en) * | 1950-01-10 | 1951-05-29 | Gen Aniline & Film Corp | Production of azine dyestuff images |
-
0
- BE BE562088D patent/BE562088A/xx unknown
-
1956
- 1956-11-05 US US620194A patent/US2875049A/en not_active Expired - Lifetime
-
1957
- 1957-10-11 DE DEE14777A patent/DE1056478B/en active Pending
- 1957-11-01 GB GB34118/57A patent/GB878675A/en not_active Expired
- 1957-11-04 FR FR1185725D patent/FR1185725A/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2286662A (en) * | 1938-09-02 | 1942-06-16 | Gen Aniline & Film Corp | Color photography |
| DE866605C (en) * | 1944-11-27 | 1953-02-12 | Bayer Ag | Process for making photographic attenuator and bleach-fix baths |
| US2657139A (en) * | 1950-12-22 | 1953-10-27 | Gen Aniline & Film Corp | Process of removing color developer stain in azine dye images |
| US2656273A (en) * | 1952-02-12 | 1953-10-20 | Eastman Kodak Co | Photographic developers containing diamino-propanol tetracetic acid |
Non-Patent Citations (1)
| Title |
|---|
| DE P14362 (Bekanntgemacht am 11.10.1956) * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB878675A (en) | 1961-10-04 |
| FR1185725A (en) | 1959-08-04 |
| BE562088A (en) | |
| US2875049A (en) | 1959-02-24 |
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