US3495981A - Color developing process - Google Patents
Color developing process Download PDFInfo
- Publication number
- US3495981A US3495981A US557638A US3495981DA US3495981A US 3495981 A US3495981 A US 3495981A US 557638 A US557638 A US 557638A US 3495981D A US3495981D A US 3495981DA US 3495981 A US3495981 A US 3495981A
- Authority
- US
- United States
- Prior art keywords
- color
- developing
- silver
- developer
- liter
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 13
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 19
- 238000004061 bleaching Methods 0.000 description 17
- -1 silver halide Chemical class 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 16
- 229910052709 silver Inorganic materials 0.000 description 15
- 239000004332 silver Substances 0.000 description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 13
- 238000011109 contamination Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000011161 development Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 5
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 5
- 235000010265 sodium sulphite Nutrition 0.000 description 5
- 238000005202 decontamination Methods 0.000 description 4
- 230000003588 decontaminative effect Effects 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 235000011126 aluminium potassium sulphate Nutrition 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 3
- 229940050271 potassium alum Drugs 0.000 description 3
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- AEEZXQFUVDKVFT-UHFFFAOYSA-N 2-(benzylamino)phenol Chemical compound OC1=CC=CC=C1NCC1=CC=CC=C1 AEEZXQFUVDKVFT-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- VXVXRJJWYPVNLM-UHFFFAOYSA-N [2-(methylamino)phenyl] hydrogen sulfate Chemical compound CNC1=CC=CC=C1OS(O)(=O)=O VXVXRJJWYPVNLM-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 description 1
- ZNBNBTIDJSKEAM-UHFFFAOYSA-N 4-[7-hydroxy-2-[5-[5-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]-5-methyloxolan-2-yl]-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-2-methyl-3-propanoyloxypentanoic acid Chemical compound C1C(O)C(C)C(C(C)C(OC(=O)CC)C(C)C(O)=O)OC11OC(C)(C2OC(C)(CC2)C2C(CC(O2)C2C(CC(C)C(O)(CO)O2)C)C)CC1 ZNBNBTIDJSKEAM-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- MPLZNPZPPXERDA-UHFFFAOYSA-N [4-(diethylamino)-2-methylphenyl]azanium;chloride Chemical compound [Cl-].CC[NH+](CC)C1=CC=C(N)C(C)=C1 MPLZNPZPPXERDA-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- XIWMTQIUUWJNRP-UHFFFAOYSA-N amidol Chemical compound NC1=CC=C(O)C(N)=C1 XIWMTQIUUWJNRP-UHFFFAOYSA-N 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- JNGZXGGOCLZBFB-IVCQMTBJSA-N compound E Chemical compound N([C@@H](C)C(=O)N[C@@H]1C(N(C)C2=CC=CC=C2C(C=2C=CC=CC=2)=N1)=O)C(=O)CC1=CC(F)=CC(F)=C1 JNGZXGGOCLZBFB-IVCQMTBJSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JCCNYMKQOSZNPW-UHFFFAOYSA-N loratadine Chemical compound C1CN(C(=O)OCC)CCC1=C1C2=NC=CC=C2CCC2=CC(Cl)=CC=C21 JCCNYMKQOSZNPW-UHFFFAOYSA-N 0.000 description 1
- CLJDCQWROXMJAZ-UHFFFAOYSA-N n-[2-(4-amino-n-ethyl-3-methylanilino)ethyl]methanesulfonamide;sulfuric acid Chemical compound OS(O)(=O)=O.CS(=O)(=O)NCCN(CC)C1=CC=C(N)C(C)=C1 CLJDCQWROXMJAZ-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 description 1
- 229940116357 potassium thiocyanate Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
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
- G03C5/3056—Macromolecular additives
-
- 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
Definitions
- the present invention relates generally to an improved color developing process for silver halide color photographic elements and more particularly to a color developing process using polyoxyethylene alkylphenyl ether and p-aminophenol or derivatives thereof to promote the color developing speed, reduce the deficiency in silver bleaching and color contamination, and to improve picture qualities.
- the presence of the developing accelerator in a bleaching process for developed silver after the color development frequently reduces the oxidation speed of silver, that is, causes the phenomenon of so-called insufficient silver bleaching.
- an object of the present invention is to accelerate the color developing speed and also increase the color density.
- Another object of the present invention is to improve the silver-bleaching in color photographic processing.
- Still another object of the present invention is to reduce or prevent the decontamination or color contamination in color photography.
- the polyoxyethylene alky phenyl ether used in the present invention can be represented by the following general formula wherein R and R' are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms and n is a number of 5 to 50.
- the suitable amount of the abovementioned polyoxyethylene alkylphenol other is usually from 0.5 to 10 g./
- the amount may be less or more than the range it if it is less than 0.5 g./iiter the effect of the addition .ereof will be Weak and it higher than 10 g./liter the feet Will not be increased more and hence the addition too much amount of the compound is unnecessary.
- the p-aminophenol derivatives used in this invention 7e N-methylaminophenol sulfate (metol), o,prdiaminoaenol hydrochloride (amidol), and N-benzyl-p-aminonenol. Although the effect may be slightly iess than those 5 the abovementioned derivatives, p-aminophenol may be so used in this invention.
- a suitable amount of p-aminophenol or the derivaves thereof to be incorporated in the developer is 0.1 to g./liter. The amount may be less or higher than this tnge but if the amount is less than 0.1 g./ liter, the efiect E additon thereof becomes insufiicient and if it is higher tan 1 g./liter the color density tends to decrease on the )ntrary.
- Two or more kinds of the abovementioned pninophenol and the derivatives thereof may be used in 11S invention.
- the present invention may generally be applied to color hotographic elements using a color developer containlg p-phenylene-diamine or derivatives thereof, such as egative color photographic films, photographic color apers, photographic color reversal films and the like. 1 particular, the most effective results of this invention an be obtained in the case of conducting this invention JOUt a yellow color developer for photographic color :versal film having technical difficulties in silver bleach- ⁇ g and color decontamination.
- EXAMPLE 1 A test sample which had been prepared by applying a lue-sensitive gelatino silver bromo-iodide emulsion to cellulose acetate film was exposed by means of a :nsitometer and subjected to the following processings:
- the color densities and the silver-bleaching effects were measured in this processing about the cases of using the polyoxyethylene alkylphenyl ether .or the p-aminophenol derivative aione and using both of them, the results of which are shown in Table 1.
- the color density is shown by the value obtained by measuring the maximum density range of thus processed film using a blue filter light and the silver-bleaching effect is shown by the value of the blackened density (D caused by the remaining silver measured by using a red filter light divided by the color density value (D obtained from measuring by using a blue filter light.
- EXAMPLE 2 To a cellulose acetate film were applied a red-sensitive gelatino silver bromo-iodide emulsion, a green-sensitive gelatino silver bromo-iodide emulsion, a yellow filter layer composed of colloidal silver for absorbing blue light, and a blue-sensitive silver bromo-iodide emulsion in this order to provide a multi-layered color photographic film,
- compositions of the processing solutions are as follows:
- compositions of the first developer and the second black and white developer are same as the composition of the primary developing solution in Example 1.
- composition of the yellow developer is same as that of the color developer in Example 1.
- compositions of the bleaching solution and the fixing solution are same as those in Example 1.
- the effect of the addition of the compounds of this invention to the yellow color developer in the above processings is shown in Table 2.
- the color density (D was measured by a blue filter light.
- the silver bleaching was measured about the samples exposed to yellow patch.
- the color contamination (1) shows the ratio of the color density (D obtained by measuring with a green filter light a sample exposed to yellow patch to the color density .(D obtained by measuring it with a blue filter light, that is, the ratio of unnecessary magenta color components in the yellow image
- the color contamination (2) shows the ratio of the color density (D obtained by measuring 'with a blue filter light a sample exposed to a magneta patch to the color density (D obtained by measuring it with a green filter light, that is, the ratio of unnecessary yellow components in the magenta color image.
- EXAMPLE 4 A gelatino silver bromo-iodide emulsion containing a yellow coupler was applied to a cellulose acetate film to provide a test sample, which was exposed by means of a NSG actionometer and then subjected to the following processmgs:
- a color developer containing a member selected from the group consisting of p-phenylenediamine and the derivatives thereof is used, the improvement which comprises in said color developer (A) phenyl ether represented by the general formula:
- R and R represent a member selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 5 carbon atoms and n is a number of from 5 to 50, and (B) at least one component selected from the group consisting of N-rnethyl-p-aminophenol, o,p-diaminophenol, N-bcnzyl-p-aminophenol and p-aminophe- 1101.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
United States Patent Int. Cl. G03c7/30, 5/30 US. Cl. 96--55 4 Claims ABSTRACT OF THE DISCLOSURE Exposed silver halide color photographic elements are developed with a color developer containing p-phenylenediamine or derivative thereof, polyoxyethylene alkylphenyl ether and p-aminophenol or derivative thereof, whereby the color developing speed is promoted, the deficiency in silver bleaching and color contamination are reduced, and the photographic qualities are improved.
The present invention relates generally to an improved color developing process for silver halide color photographic elements and more particularly to a color developing process using polyoxyethylene alkylphenyl ether and p-aminophenol or derivatives thereof to promote the color developing speed, reduce the deficiency in silver bleaching and color contamination, and to improve picture qualities.
Since a conventional color developer containing as a color developing agent p-phenylenediamine or derivatives thereof is low in developing power as compared with a general black and white developer, the pH value of the processing solution must be extremely high or the developing procedure must be conducted for a very long period of time. Accordingly, there have hitherto been employed various color developing accelerators but the use of such conventional color developing accelerators frequently causes at development fogging at the unexposed areas resulting in contaminating the pictures or images and further, if the developing period of time is reduced for preventing the formation of fog, no increase in the color density of the image portions is observed and hence the color developing processing cannot be conducted effectively.
In particular, in a color developing process process using a color developer containing couplers therein, the use of a color developing accelerator frequently causes undesirable color fogging or color contamination.
Further, the presence of the developing accelerator in a bleaching process for developed silver after the color development frequently reduces the oxidation speed of silver, that is, causes the phenomenon of so-called insufficient silver bleaching.
Thus, there are presently very few color development accelerators having excellent properties as aforementioned.
Accordingly, an object of the present invention is to accelerate the color developing speed and also increase the color density.
Another object of the present invention is to improve the silver-bleaching in color photographic processing.
Still another object of the present invention is to reduce or prevent the decontamination or color contamination in color photography.
It has been found that after investigation that by using a color developer containing p-phenylenediamine or derivatives thereof incorporated with a below-stating polyoxyethylene alkylphenyl ether and p-aminophenol or a derivative thereof, the color developing speed can be reice markably increased as well as the silver bleaching improved and hence decontamination or color decontamination reduced to improve the qualities of photographic pictures.
It is known that the use of a polyoxyethlene alkylphenyl ether alone accelerates the developing speed but at the same time results in undesirable contamination or color contamination. Further, some kinds of couplers are present at color development, the use of such a developing acclerator will cause insuflicient silver bleaching. However, if the developing accelerator is used together with p-aminophenol or derivatives thereof in color development, the developing speed is accelerated more effectively, as compared with the case of using the developing acceleration alone, and the abovementioned various faults are reduced.
The polyoxyethylene alky phenyl ether used in the present invention can be represented by the following general formula wherein R and R' are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms and n is a number of 5 to 50.
The compounds shown by the above general formula are illustrated as follows:
The suitable amount of the abovementioned polyoxyethylene alkylphenol other is usually from 0.5 to 10 g./
ter. The amount may be less or more than the range it if it is less than 0.5 g./iiter the effect of the addition .ereof will be Weak and it higher than 10 g./liter the feet Will not be increased more and hence the addition too much amount of the compound is unnecessary.
The p-aminophenol derivatives used in this invention 7e N-methylaminophenol sulfate (metol), o,prdiaminoaenol hydrochloride (amidol), and N-benzyl-p-aminonenol. Although the effect may be slightly iess than those 5 the abovementioned derivatives, p-aminophenol may be so used in this invention. In this respect, it must be iderstood that the use of p-aminophenol or the derivaves thereof among various black and white developing gents is important in this invention since the use of :her black and White developing agents together with the aovementioned developing accelerator increases, on the )ntrary, the contamination or color contamination. Furler, if the abovementioned p-aminophenol or the derivaves thereof are added alone in a color developer, a .ack and white development occurs simultaneously with re occurrence of a color development, which results in re reduction of color density and only if the amount lereof is properly selected some extent of the increase color density is observed in a limited range of ex- DSUIC and developing period of time. However, as the Jovementioned polyoxyethylene alkylphenyl ether is resent together with the p-aminophenol derivatives or pninophenol in the color developer, the color density can a remarkably increased without increasing color fogging. A suitable amount of p-aminophenol or the derivaves thereof to be incorporated in the developer is 0.1 to g./liter. The amount may be less or higher than this tnge but if the amount is less than 0.1 g./ liter, the efiect E additon thereof becomes insufiicient and if it is higher tan 1 g./liter the color density tends to decrease on the )ntrary. Two or more kinds of the abovementioned pninophenol and the derivatives thereof may be used in 11S invention.
Thus, by using the abovementioned two compounds ac- )rding to the present invention, said two compounds eing impracticable individually owing to their drawbacks, 1e faults of the two compounds are compensated for by tch other to make possible the practical use thereof as ell as an unexpected remarkable development acceleratlg effect which has never been expected from the inter- :tion of them.
The present invention may generally be applied to color hotographic elements using a color developer containlg p-phenylene-diamine or derivatives thereof, such as egative color photographic films, photographic color apers, photographic color reversal films and the like. 1 particular, the most effective results of this invention an be obtained in the case of conducting this invention JOUt a yellow color developer for photographic color :versal film having technical difficulties in silver bleach- \g and color decontamination.
The following examples illustrate but do not limit the resent invention:
EXAMPLE 1 A test sample which had been prepared by applying a lue-sensitive gelatino silver bromo-iodide emulsion to cellulose acetate film was exposed by means of a :nsitometer and subjected to the following processings:
First developer:
N-methyl-p-aminophenol sulfate g 2.0 Sodium sulfite g 90.0 Hydroquinone g 8.0 Sodium carbonate (monohydrate) g 52.5 Potassium bromide g 5.0 Potassium thiocyanate g Water to make 1 liter.
Color developer:
Sodium sulfite g 5.0 p-Amino-N,Ndiethylaniline sulfite g 2.5 Potassium bromide g 1.0 Potassium iodide (0.1% aq. soln.) ml 5 1 w benzoyi 4 (p toluenesulfonamido)- acetanilide g 1.2
Sodium hydroxide g 2.5 Water to make 1 liter.
Bleaching solution:
Potassium ferricyanide g 100 Potasium bromide g 10 Borax g 2 Boric acid g 1 Water to make 1 liter.
Fixing solution:
Sodium thiosulfate gfl Sodium sulfite g 10 Water to make 1 liter.
The color densities and the silver-bleaching effects were measured in this processing about the cases of using the polyoxyethylene alkylphenyl ether .or the p-aminophenol derivative aione and using both of them, the results of which are shown in Table 1. The color density is shown by the value obtained by measuring the maximum density range of thus processed film using a blue filter light and the silver-bleaching effect is shown by the value of the blackened density (D caused by the remaining silver measured by using a red filter light divided by the color density value (D obtained from measuring by using a blue filter light.
Thus, a yellow color image having a high color density and a high transparency was obtained by using compound (D) and benzylaminophenol together as compared with the cases of using compound (D) or benzylaminophenol individually.
EXAMPLE 2 To a cellulose acetate film were applied a red-sensitive gelatino silver bromo-iodide emulsion, a green-sensitive gelatino silver bromo-iodide emulsion, a yellow filter layer composed of colloidal silver for absorbing blue light, and a blue-sensitive silver bromo-iodide emulsion in this order to provide a multi-layered color photographic film,
which was exposed using a sensitometer and subjected to the following processings:
The compositions of the processing solutions are as follows:
The compositions of the first developer and the second black and white developer are same as the composition of the primary developing solution in Example 1.
Cyan color developer:
Sodium sulfite g 5.0
4-amino-3-methyl-N, N-diethylaniline hydrochloride g 1.5 Sodium carbonate (mono-hydrate) g 15.0 Potassium bromide g 1.0 Potassium iodide (0.1% aq. soln.) ml 2 1,5-dihydroxy-2-6-dibromonaphthalene g 1.2 Sodium hydroxide g 2.0 Water to make 1 liter.
The composition of the yellow developer is same as that of the color developer in Example 1.
Magenta color developer:
The compositions of the bleaching solution and the fixing solution are same as those in Example 1.
The effect of the addition of the compounds of this invention to the yellow color developer in the above processings is shown in Table 2. In the table, the color density (D was measured by a blue filter light. The silver bleaching was measured about the samples exposed to yellow patch. The color contamination (1) shows the ratio of the color density (D obtained by measuring with a green filter light a sample exposed to yellow patch to the color density .(D obtained by measuring it with a blue filter light, that is, the ratio of unnecessary magenta color components in the yellow image and the color contamination (2) shows the ratio of the color density (D obtained by measuring 'with a blue filter light a sample exposed to a magneta patch to the color density (D obtained by measuring it with a green filter light, that is, the ratio of unnecessary yellow components in the magenta color image.
TABLE 2 Silver Color Contamination Addition Compounds Color Bleaching Density Efiect (1) Compound E Metol (DB) (Dn/DB) o/ B) B/ o) EXAMPLE 3 By repeating the procedure as in Example 2 using a standard composition for the yellow developer while in- 5 corporating the compounds of this invention in the cyan color developer, the results of which are shown in Table 3.
TABLE 3 Color Contamination Addition Compound Coupling Density (2) Compound B Am1dol (D n) (D n/Dn) (D RID B) The color density in Table 3 is a value measured by using a red filter light, the color contamination (1) shows the unnecessary yellow components in the cyan color patch and the color bleaching (2) shows the unnecessary cyan color components in yellow patch.
EXAMPLE 4 A gelatino silver bromo-iodide emulsion containing a yellow coupler was applied to a cellulose acetate film to provide a test sample, which was exposed by means of a NSG actionometer and then subjected to the following processmgs:
Color development min. at 24 C-.. 8 Water rinsing sec 30 Primary fixing min 4 Water rinsing min 5 Bleaching min 4 Water rinsing min 5 Secondary fixing min 4 Water rinsing min 5 The compositions of the processing solutions were as follows:
Color developer:
Benzyl alcohol ml 3 Hydroxylamine sulfate g 2 Sodium sulfite g 2 3-methyl-4-amino-N-ethyl-methanesulfonamidoethylaniline sulfate g 1.5 Sodium carbonate (mono-hydrate) g Potassium bromide g 1 Sodium hydroxide g 0.1 60 Water to make 1 liter. Fixing solution (first):
Sodium sulfite g 15 Sodium thiosultate g 150 Acetic acid (28%) -ml.. 48
Boric acid g 7 Potassium alum g 15 Water to make 1 liter.
Bleaching solution:
Potassium bromide g 20 Potassium dichromate g 5 Potassium alum g 40 Sodium acetate g 8 Acetic acid g 57 Water to make 1 liter.
ixing solution (second):
Sodium thiosulfate g 150 Sodium sulfate g 15 Potassium alum g 15 Water to make 1 liter.
TABLE 4 Silver Addition Compound Color Bleaching Density Relative Efiect Color Compound F Metol (D 3) Sensitivity (D R/D B) Fog 0 1. 50 2. l0 0. 15 0. 26 1. 0 0 l. 65 2. 20 0. 20 0.30 0 0. 2 l. 48 2. 10 O. 12 0. 23 1. 0 0.2 1. 69 2. 24 0. 12 0.22
(In the table, the relative sensitivity was shown by the :lative value of the logarithmic exposure amount at the JiIlt Where the density reaches fog +0.2.)
EXAMPLE By repeating the sample procedure as in Example 1 sing .15/liter of methylaminophenol sulfate instead of enzyl aminophenol and 2.0 g./liter of compound (K) stead of compound (D), the following results were btained:
We claim:
1. In color developing process for color photographic silver halide elements, a color developer containing a member selected from the group consisting of p-phenylenediamine and the derivatives thereof is used, the improvement which comprises in said color developer (A) phenyl ether represented by the general formula:
wherein R and R represent a member selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 5 carbon atoms and n is a number of from 5 to 50, and (B) at least one component selected from the group consisting of N-rnethyl-p-aminophenol, o,p-diaminophenol, N-bcnzyl-p-aminophenol and p-aminophe- 1101.
2. The color developing process as in claim 1, wherein the amount of said component (B) to the color developer is 0.1 to 1 g./liter.
3. The color developing process as in claim 1, wherein the amount of said component (A) to the color developing solution is 0.5 to 10 g./ liter.
4. The color developing process as in claim 1, wherein at least one of the R and R groups of component A is an alkyl group.
References Cited UNITED STATES PATENTS 2,531,832 11/1950 Stanton 9666.3 3,158,483 11/1964 Lowe et al. 96-66.3 3,300,305 1/1967 Pesch et a1. 9622 J. TRAVIS BROWN, Primary Examiner U.S. Cl. X.R. 9666.3
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3616565 | 1965-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3495981A true US3495981A (en) | 1970-02-17 |
Family
ID=12462138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US557638A Expired - Lifetime US3495981A (en) | 1965-06-17 | 1966-06-15 | Color developing process |
Country Status (4)
Country | Link |
---|---|
US (1) | US3495981A (en) |
BE (1) | BE682699A (en) |
DE (1) | DE1547845A1 (en) |
GB (1) | GB1094826A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5041367A (en) * | 1990-03-05 | 1991-08-20 | Eastman Kodak Company | Photographic recording material |
USH1020H (en) | 1989-09-25 | 1992-02-04 | Konica Corporation | Developing solution for light-sensitive silver halide photographic material and method of forming photographic image making use of it |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2748430A1 (en) * | 1977-10-28 | 1979-05-03 | Agfa Gevaert Ag | PHOTOGRAPHIC BLEACHING COMPOSITIONS WITH BLADE ACCELERATING COMPOUNDS |
DE2845907C2 (en) * | 1978-10-21 | 1985-03-28 | Agfa-Gevaert Ag, 5090 Leverkusen | Color photographic developing baths |
JP2915095B2 (en) * | 1989-12-28 | 1999-07-05 | コニカ株式会社 | Color developing solution for silver halide color photographic material and processing method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2531832A (en) * | 1947-06-12 | 1950-11-28 | Du Pont | Silver halide developers containing polyethylene glycols |
US3158483A (en) * | 1957-03-08 | 1964-11-24 | Eastman Kodak Co | Photographic developers containing polyalkylene glycols |
US3300305A (en) * | 1962-10-25 | 1967-01-24 | Eastman Kodak Co | Color developers containing competing developing agents |
-
1966
- 1966-06-15 US US557638A patent/US3495981A/en not_active Expired - Lifetime
- 1966-06-16 GB GB27005/66A patent/GB1094826A/en not_active Expired
- 1966-06-17 BE BE682699D patent/BE682699A/xx unknown
- 1966-06-18 DE DE19661547845 patent/DE1547845A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2531832A (en) * | 1947-06-12 | 1950-11-28 | Du Pont | Silver halide developers containing polyethylene glycols |
US3158483A (en) * | 1957-03-08 | 1964-11-24 | Eastman Kodak Co | Photographic developers containing polyalkylene glycols |
US3300305A (en) * | 1962-10-25 | 1967-01-24 | Eastman Kodak Co | Color developers containing competing developing agents |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH1020H (en) | 1989-09-25 | 1992-02-04 | Konica Corporation | Developing solution for light-sensitive silver halide photographic material and method of forming photographic image making use of it |
US5041367A (en) * | 1990-03-05 | 1991-08-20 | Eastman Kodak Company | Photographic recording material |
Also Published As
Publication number | Publication date |
---|---|
DE1547845A1 (en) | 1970-01-08 |
BE682699A (en) | 1966-12-01 |
GB1094826A (en) | 1967-12-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3520689A (en) | Color developing process utilizing pyridinium salts | |
US3520690A (en) | Process for controlling dye gradation in color photographic element | |
US4567134A (en) | Method for processing of light-sensitive silver halide color photographic material | |
US3141771A (en) | Aldehyde scavengers for photographic silver halide developers | |
US2675314A (en) | Antistain agents for photographic color materials | |
US2403721A (en) | Preventing color fog in photographic material | |
US2453661A (en) | Colored couplers | |
US2356486A (en) | Stain prevention in color photography | |
US3495981A (en) | Color developing process | |
US3246987A (en) | Method for elimination of reversal reexposure in processing photographic elements | |
GB1570930A (en) | Colour photographic processing of silver halide material | |
US2490751A (en) | Mixed grain multilayer photographic film and process | |
US2518739A (en) | Method of masking photographic color images | |
US2478400A (en) | Silver halide photographic emulsion with developer and color coupler dispersed therein | |
US3489566A (en) | Magneta color developer solutions | |
JPS6346439A (en) | Silver halide photographic sensitive material | |
US3832179A (en) | Inhibition of fog in photographic color development | |
US3512979A (en) | Process for development of photographic silver halide color materials | |
US2196734A (en) | Colored photographic image from hydrazine compounds | |
JPS6335970B2 (en) | ||
US3706556A (en) | Method for preventing color mixing in multiple layer-type reversal color photographic light-sensitive materials | |
US2496903A (en) | Photographic developer containing a negatively substituted aralkylamine and process of development | |
US3615542A (en) | Light-sensitive silver halide color-photographic material | |
JPH0833635B2 (en) | Silver halide color photographic light-sensitive material | |
US4394440A (en) | Yellow-dye-forming photographic developing composition |