US3687673A - Color photographic light-sensitive materials containing a cyan dye for silver dye bleaching method - Google Patents
Color photographic light-sensitive materials containing a cyan dye for silver dye bleaching method Download PDFInfo
- Publication number
- US3687673A US3687673A US74342A US3687673DA US3687673A US 3687673 A US3687673 A US 3687673A US 74342 A US74342 A US 74342A US 3687673D A US3687673D A US 3687673DA US 3687673 A US3687673 A US 3687673A
- Authority
- US
- United States
- Prior art keywords
- dye
- group
- cyan
- silver
- photographic 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 - Lifetime
Links
- 239000000463 material Substances 0.000 title abstract description 27
- 229910052709 silver Inorganic materials 0.000 title abstract description 25
- 239000004332 silver Substances 0.000 title abstract description 25
- 238000000034 method Methods 0.000 title abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title abstract description 21
- 238000004061 bleaching Methods 0.000 title abstract description 21
- -1 HYDROXYL GROUP Chemical group 0.000 abstract description 15
- 239000000839 emulsion Substances 0.000 abstract description 13
- 229910052801 chlorine Inorganic materials 0.000 abstract description 10
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052708 sodium Inorganic materials 0.000 abstract description 5
- 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 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000011734 sodium Substances 0.000 abstract description 4
- 150000003863 ammonium salts Chemical class 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 150000002367 halogens Chemical group 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 84
- 230000015572 biosynthetic process Effects 0.000 description 16
- 239000000243 solution Substances 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 125000001309 chloro group Chemical group Cl* 0.000 description 12
- APRRQJCCBSJQOQ-UHFFFAOYSA-N 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC(O)=C2C(N)=CC(S(O)(=O)=O)=CC2=C1 APRRQJCCBSJQOQ-UHFFFAOYSA-N 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 9
- 125000003277 amino group Chemical group 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000987 azo dye Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 2
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 125000004001 thioalkyl group Chemical group 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- JIHQDMXYYFUGFV-UHFFFAOYSA-N 1,3,5-triazine Chemical group C1=NC=NC=N1 JIHQDMXYYFUGFV-UHFFFAOYSA-N 0.000 description 1
- ZTQGTYFYOODGOQ-UHFFFAOYSA-N 2,5-dimethoxy-4-nitroaniline Chemical compound COC1=CC([N+]([O-])=O)=C(OC)C=C1N ZTQGTYFYOODGOQ-UHFFFAOYSA-N 0.000 description 1
- YKUDHBLDJYZZQS-UHFFFAOYSA-N 2,6-dichloro-1h-1,3,5-triazin-4-one Chemical compound OC1=NC(Cl)=NC(Cl)=N1 YKUDHBLDJYZZQS-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- MCLXKFUCPVGZEN-UHFFFAOYSA-N 4,6-dichloro-1,3,5-triazin-2-amine Chemical compound NC1=NC(Cl)=NC(Cl)=N1 MCLXKFUCPVGZEN-UHFFFAOYSA-N 0.000 description 1
- RKKZDGOUSIOSIY-UHFFFAOYSA-N 4-benzamido-5-hydroxynaphthalene-2,7-disulfonic acid Chemical compound C=12C(O)=CC(S(O)(=O)=O)=CC2=CC(S(O)(=O)=O)=CC=1NC(=O)C1=CC=CC=C1 RKKZDGOUSIOSIY-UHFFFAOYSA-N 0.000 description 1
- ZFIQGRISGKSVAG-UHFFFAOYSA-N 4-methylaminophenol Chemical compound CNC1=CC=C(O)C=C1 ZFIQGRISGKSVAG-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910006069 SO3H Inorganic materials 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000000586 desensitisation Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 125000004436 sodium atom Chemical group 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
Images
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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
- G03C7/29—Azo dyes therefor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/04—Disazo dyes characterised by the tetrazo component the tetrazo component being a benzene derivative
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
- C09B62/02—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring
- C09B62/04—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring to a triazine ring
- C09B62/08—Azo dyes
- C09B62/09—Disazo or polyazo dyes
Definitions
- Patented Aug. 29, 1972 dye does not diffuse into other photographic layers and 3,687,673
- an object of this invention is to improve the color reproducibility of color photographs by using a cyan ABSTRACT OF THE DISCLOSURE dye satisfying the above-described characteristics required
- a color photographic lighbsensifive material for the for the dye to be used in color photographic light-sensitive Silver dye bleaching method comprising a support having materials for the silver dye bleaching method and also thereon a photographic emulsion layer containing a memhah'hg a maximum absorption Wave length at the longer ber selected from the group consisting of a cyan dye hav- Wave length sldeing the following general formula 2
- Another object of this invention is to provide a color H0 8 SOgH OCH; H0 5 SOaH wherein X is selected from the group
- Y is a residual group of a compound capable of reacting with the most readily reac- OF INVENTION tive chlorine atom of cyanuric chloride, and the sodium
- X represents a halogen atom, a hydroxyl group, an amino group, or an anilino group and Y represents a (1) Fleld of the mventlon residual group of a compound capable of being reacted
- the PWSent invention relates to a Color P g p with the first chlorine atom of cyanuric chloride. light-sensitive material for the silver dye bleaching method, wherein a cyan dye is incorporated in a photo- DESCRIPTION OF THE INVENTION sensitive silver halide emulsion layer.
- the azo chloride the most readily replaceable chlorine atoms group of the dye must be readily reduced and decomposed described above are a hydroxyl group, :an alkoxyl in response to the amount of silver present, thereby the group, an aryloxy group, a mono-substituted amino group, dye is completely bleached.
- the dye is incora di-substituted amino group, a nitrogen-containing cyclic porated in a silver halide emulsion, it is necessary that the group, a sulfoamino group, a thioalkyl group, and the like.
- one of the amino groups of the H-acid which is the nuclei of a cyan dye can be in an unsubstituted state. That is to say, the maximum absorption wave elngth of an aqueous solution of dye A having the following formula Dye A:
- the dye is not substituted at the amino group, the dye difiuses into other photographic layers when it is incorporated in a photographic emulsion layer of a color photographic lightsensitive material. This makes the utilization of the dye in color photographic light-sensitive materials difficult.
- Dye B having the following formula prepared by substituting the amino group of H-acid with, for instance, benzoyl chloride Dye B OH NH:
- the cyan dyes of this invention can be synthesized in the following manner. First, the first chlorine atom of the SOzH three chlorine atoms of cyanuric chloride is replaced with the residual group Y to prepare a 2-Y substituted-4,6-dichloro-S-triazine. Then, the N-substituted H-acid is synthesized by utilizing the reaction of the second chlorine atom of the substituted triazine prepared above and the amino group of H-acid. Then the N-substituted H-acid is reacted with the diazo component of a monoazo dye to obtain the cyan dye.
- cyan dyes to be used in this invention suitable ones are those having, for example, the following structures although they are not limited to them only.
- the sulfone group of each of the cyan dyes shown @ocrm )11 porn on sumo-Q 803E hon sour does no diffuse into other photographic emulsion layers when it is incorporated in a photographic emulsion layer of a color photographic light-sensitive material.
- this dye shows no absorption at a longer wave region.
- such a type of a diifusion resisting dye is therefore inadequate for a color photographic light-sensitive material. That is to say, the maximum absorption wave length of an aqueous solution of Dye B is 606 mp, which is extremely shorter than that of the dye used in this invention.
- the inventors have investigated a cyan dye in which the amino group of the H-acid is substituted and which has the maximum absorption wave length at the wave length region of as long as possible, and have discovered that the purposes are fulfilled by the dye having the structure shown by general Formula I.
- a cyan dye satisfying the above purposes can be obtained.
- the cyan dyes to be used in this invention for instance dye 1 and dye 2, shown hereinafter, having extremely desirable absorption characteristics as shown in the accompanying drawing, are readily bleached, and have no adverse influence on the photographic properties of a silver halide photographic emulsion when the dye is added to the emulsion. Also, the cyan dyes have sufi'icient fastness. Thus, the cyan dyes of this invention are quite desirable as cyan dyes for color photographic light-sensitive materials in silver dye bleaching method.
- the cyan dyes of this invention can be used not only for natural color photographic light-sensitive materials below can be substituted by a sodium atom, potassium or an ammonium group.
- the following grouping is denoted as A:
- typical examples of the synthesis of the cyan dyes of this invention are illustrated below.
- a solution of 36.3 parts of sodium '1-amino-8-naphthol- 3,6-disulfonate in 200 parts of water is added to the suspension of 2-amino 4,6 dichloro S triazine prepared above.
- the solution is heated for 45 minutes at 55 C. and then the solution is further stirred at the same temperature until the 1-amino-8-naphthol-3,6-disulfonic acid is consumed. Thereafter, the solution is neutralized by adding an aqueous 2 N sodium carbonate solution and then cooled, thereby the desired material is deposited.
- the product is then collected by filtration and dried.
- the precipitates are collected by filtration, washed with ethanol and dried.
- the film was then washed with water, hardened, using a 4% aqueous formaldehyde solution, washed with water, and then processed for 15 minutes using a dye bleaching bath having the following composition:
- the film was washed with water and then treated using a silver bleaching bath having the following composition:
- the film was washed with Water, fixed again using the fixing bath having the composition shown above, washed further with Water, and dried.
- the image produced was suitable as the cyan component image of a multi-color type light-sensitive material for the silver dye bleaching method.
- EXAMPLE 2 wherein X is selected from the group consisting of a
- X is selected from the group consisting of a
- pound capable of reacting with the most readily reactive the image was completely blea'ched and the image was 5 chlorine atom of cyanuric chloride selected from the group suitable as the cyan component image of a multi-color consisting of a hydrpxyl group an g type light-sensitive material using a silver dye bleaching aryloxy an a S flute ammo method.
- a color photographic silver halide light-sensitive according to claim 1, wherein said cyan dye has the material for the silver dye bleaching method comprising following formula N-i Q-OOHN on non, OH IgIH N N N-Q-N: In H0 3 305E CH3 Hogs son:
- a support having thereon a photographic emulsion layer containing a member selected from the group consisting of a cyan dye having the following general formula:
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP44075466A JPS4910695B1 (enrdf_load_stackoverflow) | 1969-09-22 | 1969-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3687673A true US3687673A (en) | 1972-08-29 |
Family
ID=13577097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US74342A Expired - Lifetime US3687673A (en) | 1969-09-22 | 1970-09-22 | Color photographic light-sensitive materials containing a cyan dye for silver dye bleaching method |
Country Status (6)
Country | Link |
---|---|
US (1) | US3687673A (enrdf_load_stackoverflow) |
JP (1) | JPS4910695B1 (enrdf_load_stackoverflow) |
BE (1) | BE756410A (enrdf_load_stackoverflow) |
CH (1) | CH566579A5 (enrdf_load_stackoverflow) |
DE (1) | DE2046684C3 (enrdf_load_stackoverflow) |
GB (1) | GB1287173A (enrdf_load_stackoverflow) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666805A (en) * | 1984-06-19 | 1987-05-19 | Ricoh Co., Ltd. | Photosensitive material containing disazo compound for use in electrophotography |
US5378817A (en) * | 1992-01-22 | 1995-01-03 | Bayer Aktiengesellschaft | Reactive dyestuffs for dyeing and printing materials containing OH groups or amide groups |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0169808A3 (en) * | 1984-07-24 | 1988-12-21 | Ciba-Geigy Ag | Uv-absorber compounds, method for their preparation and their use as image dyes in photographic materials for the silver dye-bleaching process |
-
0
- BE BE756410D patent/BE756410A/xx unknown
-
1969
- 1969-09-22 JP JP44075466A patent/JPS4910695B1/ja active Pending
-
1970
- 1970-09-21 GB GB44880/70A patent/GB1287173A/en not_active Expired
- 1970-09-22 CH CH1402070A patent/CH566579A5/xx not_active IP Right Cessation
- 1970-09-22 DE DE2046684A patent/DE2046684C3/de not_active Expired
- 1970-09-22 US US74342A patent/US3687673A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666805A (en) * | 1984-06-19 | 1987-05-19 | Ricoh Co., Ltd. | Photosensitive material containing disazo compound for use in electrophotography |
US5378817A (en) * | 1992-01-22 | 1995-01-03 | Bayer Aktiengesellschaft | Reactive dyestuffs for dyeing and printing materials containing OH groups or amide groups |
Also Published As
Publication number | Publication date |
---|---|
JPS4910695B1 (enrdf_load_stackoverflow) | 1974-03-12 |
DE2046684C3 (de) | 1975-05-22 |
DE2046684B2 (de) | 1974-10-03 |
CH566579A5 (enrdf_load_stackoverflow) | 1975-09-15 |
BE756410A (fr) | 1971-03-01 |
GB1287173A (en) | 1972-08-31 |
DE2046684A1 (de) | 1971-04-01 |
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