US3615525A - Derivative of 6-amino-1 2 3 4-tetrahydroquinoline as superadditive in developing composition - Google Patents
Derivative of 6-amino-1 2 3 4-tetrahydroquinoline as superadditive in developing composition Download PDFInfo
- Publication number
- US3615525A US3615525A US727358A US3615525DA US3615525A US 3615525 A US3615525 A US 3615525A US 727358 A US727358 A US 727358A US 3615525D A US3615525D A US 3615525DA US 3615525 A US3615525 A US 3615525A
- Authority
- US
- United States
- Prior art keywords
- developing
- photographic
- group
- hydroquinone
- amino
- 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
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- 239000000203 mixture Substances 0.000 title claims abstract description 29
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract 4
- 239000000463 material Substances 0.000 claims description 15
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- SSEWGJUYSOIDMK-UHFFFAOYSA-N 1,2,3,4-tetrahydroquinolin-6-amine Chemical class N1CCCC2=CC(N)=CC=C21 SSEWGJUYSOIDMK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- -1 silver halide Chemical class 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 125000004181 carboxyalkyl group Chemical group 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 10
- 125000000547 substituted alkyl group Chemical group 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 2
- 125000004429 atom Chemical group 0.000 abstract description 2
- 125000002943 quinolinyl group Chemical class N1=C(C=CC2=CC=CC=C12)* 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 150000002431 hydrogen Chemical group 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- LBUJPTNKIBCYBY-UHFFFAOYSA-N tetrahydroquinoline Natural products C1=CC=C2CCCNC2=C1 LBUJPTNKIBCYBY-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229940126214 compound 3 Drugs 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- OQMROOTVLOXIJH-UHFFFAOYSA-N 3,4-dihydro-2h-quinolin-1-amine Chemical compound C1=CC=C2N(N)CCCC2=C1 OQMROOTVLOXIJH-UHFFFAOYSA-N 0.000 description 2
- ZFIQGRISGKSVAG-UHFFFAOYSA-N 4-methylaminophenol Chemical compound CNC1=CC=C(O)C=C1 ZFIQGRISGKSVAG-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- 239000002585 base Substances 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
- 239000003054 catalyst Substances 0.000 description 2
- 229940125782 compound 2 Drugs 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- CMCWWLVWPDLCRM-UHFFFAOYSA-N phenidone Chemical compound N1C(=O)CCN1C1=CC=CC=C1 CMCWWLVWPDLCRM-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical class OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-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
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 description 1
- 150000004989 p-phenylenediamines Chemical class 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 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
- G03C5/30—Developers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/38—Nitrogen atoms
Definitions
- the invention relates to a process for the development of photographic materials, Containing exposed silver halide, and to developing compositions used therein.
- R stands for lower alkyl comprising from one to five carbon atoms
- R stands for lower alkyl comprising from one to five carbon atoms including substituted lower alkyl e.g. hydroxyalkyl, carboxyalkyl, the group R-NHSO R wherein each of R and R stands for lower alkyl, the group XSO; M wherein X stands for a straight chain or branched alkylene radical having from two to five carbon atoms in straight line and M stands for hydrogen, an alkali metal atom such as sodium or potassium, ammonium or an amine and R stands for hydrogen, lower alkyl comprising from one to live carbon atoms including substituted lower alkyl e.g. alkyl substituted as exemplified for R at most one of R and R being substituted alkyl.
- the combinations of developing agents according to the invention show as compared with the developing combinations described in our British Pat. specification No. 989,383 a markedly higher development activity. In most cases they even have a higher activity than the developing combination of hydroquinone and 1-phenyl-3-pyrazolidinone.
- the developing compositions of the invention have the further advantage of being stable to hydrolysis, even in strong alkaline medium whereas compositions with l-phenyl-3- pyrazolidinone hydrolyse in strong alkaline baths.
- very stable developing solutions are obtained which is pahticularly interesting for preparing liquid developers.
- the compounds corresponding to the above general formula can be added to the developing bath in the form of free bases as well as in the form of their salts e.g. as hydrochloride, as sulfate, etc.
- the 6-aminc-tetrahydroquinoline derivatives of use according to the present invention can be prepared by alkylation of 6-amino-tetrahydroquinolines or by alkylation of 6-dialkylamino-tetrahydroquinolines.
- the 6-dialkylaminotetrahydroquinolines are prepared by hydrogenation of the 6- dialkylaminoquinolines, which in their turn can be prepared as described in Bull. Soc. Chim. Fr. 27 1920) 430.
- Preparation 1 Compound l
- a solution of g. (0.4 mole) of o-diethylamino-quinoline in 400 ml. of anhydrous ethanol is hydrogenated, using 8 ml. of Raney nickel as catalyst, in a sealed tube at 70 C. and a hydrogen pressure of 1,500 p.s.i.
- the uptake of hydrogen is complete after min.
- the catalyst is filtered ofi and the filtrate is treated with 200 ml. of concentrated hydrochloric acid. After evaporation of the alcohol the residue is recrystallized from a mixture of ethanol and ethyl acetate. Melting point: C.
- Preparation 2 Compound 2 40.4 g. (0.2 mole) of 6-diethylamino-l,2,3,4- tetrahydroquinoline and 18.2 g. (0.1 mole) of triethylphosphate are heated for 3 hours in an oil bath at 200 C. After having been cooled to 50 C. a solution of 15 g. of sodium hydroxide in 50 ml. of water is added and heating is continued for 90 min. The reaction mixture is treated with water and extracted with ether. After evaporation of the ether the residue is distilled. The l-ethyl-6diethylamino-l,2,3,4- tetrahydroquinoline has a boiling point of 184-l87 C./14 mm. It is converted into its dihydrochloride by treating the base, dissolved in ethanol, with alcoholic hydrochloric acid. Melting point: 172 C. (after recrystallization from a mixture of ethanol and ethyl acetate).
- the undissolved sodium chloride is filtered off and the ethanol filtrate is evaporated.
- the product is dried bisulfites, metabisulfites, sultites, and acids such as boric acid and citric acid.
- the developing bath may further contain potassium bromide, water-softening agents such as polyphosphates or derivatives of ethylene diamine tetraacetic acid, antifogging agents and moistening agents, as well as other compounds known in the developing technique.
- the pH of the baths can vary within wide limits, preferably between eight and 1 1, so that a rapid or slow development can be obtained at will resulting in high-contrast and low-contrast images respectively.
- the ratio of hydroquinone to a G-amino-tetrahydroquinoline derivative used in the present invention can be chosen in such a way that the bath composition is suited for the development of all kinds of materials including materials having silver chloride emulsion layers of low sensitivity as well as materials having sensitive silver bromoiodide emulsion layers.
- the ratio of hydroquinone to the 6-amino-tetrahydroquinoline derivatives used in the present invention can vary within wide limits.
- the amounts are, however, generally chosen in such a way that the hydroquinone strongly outweighs the said derivatives.
- a strong superadditive effect is already obtained with a ratio of 50 mg. of a said derivative used in this invention to 5 g. of hydroquinone per liter.
- the amount of hydroquinone is comprised between 1 and 30 g. per litre and the amount of 6-amino-tethydroquinoline derivative between 5 mg. and 2 g. per liter.
- Combinations of developing agents used in this invention may also be applied in the treating solution and/or in the lightsensitive material and/or in the image-receiving material used in the application of the silver complex diffusion transfer process, the principle of which is described in British Pat. specification Nos. 614,155 and 654,630 and in German Pat. specification No. 887,733.
- the different embodiments of the materials and apparatus used therein there can be referred to Progress in Photography 1955-1958, p. 24-36 and the patent literature cited therein.
- Example 1 Strips of a photographic material comprising a light'sensitive silver bromoiodide emulsion layer, coated on material comprising triacetate support, are exposed through a grey filter with light-quantity (E) which corresponds to the shoulder part ofthe density/log E curve.
- E light-quantity
- sodium carbonate sodium hexametaphosphate 1.0 g. sodium sulfite "0.0 g. potassium bromide 0.5 g. hydroquinone 4.4 8. water up to 1.000 ml.
- the results of these developing tests are listed in table 1.
- the densities are determined after a development time of 30, 6060 and 90 sec.
- Example 2 5 ing the following composition:
- boric acid 5.0 g. borax I0.0 g. sodium hexametaphosphate 1.0 g. sodium sulfite 20.0 g. potassium bromide 0.5 g. hydroquinone 4.4 g.
- the densities are determined after 1, 3 and 5 respectively Table 2 Developing bath Density after a developing time of l min. 3 min. 5 min bath 8 0.04 0.04 0.04 bath B+ mg. of compound 1 0.20 1.20 1.60 bath B+ mg. of compound 2 0.80 1.45 1.70 bath B+l05 mg. of compound 3 0.05 0.84 1.25 bath B+70 mg. of l-methyl-oamino-l,Z.3,4-tetruhydroquinoline oxalate 0.05 0.46 1.00 bath B+l07 mg. of N.N-diethyl-N- propyl-N-3-sulphopropyl-p-phenylene diamine 0.05 0.17 0.58 bath B+50 mg. of l-phenyl-3- pyrazolidinone 0.05 0.46 1.10
- Example 3 Strips of a photographic material comprising a silver bromoiodide emulsion layer were exposed through a step wedge and developed for 2 minutes in a developing bath C having the following composition:
- Photographic developing composition comprising hydroquinone and a derivative of 6-amino-l,2,3,4- tetrahydroquinoline corresponding to the following general formula, in the form of the free base or in its salt form 3 R1 ?H2 ⁇ N CH: 0 R2 Hz wherein R is an alkyl group comprising from one to five carbon atoms.
- R is an alkyl group comprising from one to five carbon atoms
- R is hydrogen, or an alkyl group comprising from one to five carbon atoms
- R R and R being substituted alkyl.
- Photographic developing composition according to claim 1 wherein one of R,, R and R is a hydroxyalkyl group, a carboxyalkyl group, or the group R-NHSO R wherein each of R and R is a lower alkyl group, the group -X-SO M wherein X is a straight or branched alkylene group having from two to five carbon atoms in straight line, and M is hydrogen, an alkali metal, ammonium or an amine.
- Photographic developing composition according to claim 1 wherein each of R and R is a lower alkyl group having from one to five carbon atoms, and R is hydrogen, a lower alkyl group having from one to five carbon atoms or the group -X-SO M wherein X is a straight or branched alkylene group having from two to five carbon atoms in straight line, and M is hydrogen, an alkali metal, ammonium or an amine.
- Photographic-developing composition according to any of claim 1, wherein the said hydroquinone is present in an amount of from 1 to 30 g. per litre and the said 6-aminol,2,3,4-tetrahydroquinoline derivative in an amount offrom 5 mg. to 2 g. per litre.
- Photographic-developing method comprising developing and exposed silver halide emulsion layer of a photographic material an means of hydroquinone and a 6- aminol,2,3,4tetrahydroquinoline derivative as defined in claim 1.
- Photographic-developing method for application in the silver complex diffusion transfer process wherein the exposed light-sensitive material is developed with an aqueous alkaline solution in the presence of hydroquinone and a o-amino-l,2,3,4-tetrahydroquinoline derivative as defined in claim 1.
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24191/67A GB1191535A (en) | 1967-05-24 | 1967-05-24 | Improvements in or relating to Photographic Development |
Publications (1)
Publication Number | Publication Date |
---|---|
US3615525A true US3615525A (en) | 1971-10-26 |
Family
ID=10207836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US727358A Expired - Lifetime US3615525A (en) | 1967-05-24 | 1968-05-07 | Derivative of 6-amino-1 2 3 4-tetrahydroquinoline as superadditive in developing composition |
Country Status (5)
Country | Link |
---|---|
US (1) | US3615525A (en:Method) |
BE (1) | BE715500A (en:Method) |
DE (1) | DE1772490A1 (en:Method) |
GB (1) | GB1191535A (en:Method) |
NL (1) | NL6807365A (en:Method) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767403A (en) * | 1970-12-01 | 1973-10-23 | Agfa Gevaert Nv | Tetra-alkyl p-phenylene diamine with aromatic primary amino color developing agent |
US3970454A (en) * | 1974-01-10 | 1976-07-20 | Eastman Kodak Company | Photographic developing agents |
-
1967
- 1967-05-24 GB GB24191/67A patent/GB1191535A/en not_active Expired
-
1968
- 1968-05-07 US US727358A patent/US3615525A/en not_active Expired - Lifetime
- 1968-05-22 BE BE715500D patent/BE715500A/xx unknown
- 1968-05-24 NL NL6807365A patent/NL6807365A/xx unknown
- 1968-05-24 DE DE19681772490 patent/DE1772490A1/de active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767403A (en) * | 1970-12-01 | 1973-10-23 | Agfa Gevaert Nv | Tetra-alkyl p-phenylene diamine with aromatic primary amino color developing agent |
US3970454A (en) * | 1974-01-10 | 1976-07-20 | Eastman Kodak Company | Photographic developing agents |
Also Published As
Publication number | Publication date |
---|---|
DE1772490A1 (de) | 1971-04-22 |
BE715500A (en:Method) | 1968-11-22 |
GB1191535A (en) | 1970-05-13 |
NL6807365A (en:Method) | 1968-07-25 |
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