US2666703A - Single-powder photographic developers stabilized with metaboric acid - Google Patents
Single-powder photographic developers stabilized with metaboric acid Download PDFInfo
- Publication number
- US2666703A US2666703A US295834A US29583452A US2666703A US 2666703 A US2666703 A US 2666703A US 295834 A US295834 A US 295834A US 29583452 A US29583452 A US 29583452A US 2666703 A US2666703 A US 2666703A
- Authority
- US
- United States
- Prior art keywords
- metaboric acid
- developer
- powder
- alkali
- sodium
- 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
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 title claims description 33
- 239000000843 powder Substances 0.000 title claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- -1 SILVER HALIDE Chemical class 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 239000004615 ingredient Substances 0.000 claims description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 4
- 150000001642 boronic acid derivatives Chemical class 0.000 claims description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 31
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 30
- 239000003513 alkali Substances 0.000 description 22
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 16
- 229940001482 sodium sulfite Drugs 0.000 description 13
- 235000010265 sodium sulphite Nutrition 0.000 description 13
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 11
- 229940076133 sodium carbonate monohydrate Drugs 0.000 description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 7
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 7
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 6
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 5
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Inorganic materials [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 4
- 229940001593 sodium carbonate Drugs 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- HDZHNYWSJFVZIO-UHFFFAOYSA-N 2,3-diaminophenol;hydrochloride Chemical compound Cl.NC1=CC=CC(O)=C1N HDZHNYWSJFVZIO-UHFFFAOYSA-N 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 229940079877 pyrogallol Drugs 0.000 description 3
- RVGOBWDGAVAVPJ-UHFFFAOYSA-N (4-hydroxyphenyl)azanium;chloride Chemical compound Cl.NC1=CC=C(O)C=C1 RVGOBWDGAVAVPJ-UHFFFAOYSA-N 0.000 description 2
- 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 2
- WRUZLCLJULHLEY-UHFFFAOYSA-N N-(p-hydroxyphenyl)glycine Chemical compound OC(=O)CNC1=CC=C(O)C=C1 WRUZLCLJULHLEY-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- RBWOKKSOBWYZQH-UHFFFAOYSA-N s-octyl benzenecarbothioate Chemical compound CCCCCCCCSC(=O)C1=CC=CC=C1 RBWOKKSOBWYZQH-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CYXJEHCKVOQFOV-UHFFFAOYSA-N (4-amino-2-methylphenyl) hydrogen sulfate Chemical compound CC1=CC(N)=CC=C1OS(O)(=O)=O CYXJEHCKVOQFOV-UHFFFAOYSA-N 0.000 description 1
- NOGFHTGYPKWWRX-UHFFFAOYSA-N 2,2,6,6-tetramethyloxan-4-one Chemical compound CC1(C)CC(=O)CC(C)(C)O1 NOGFHTGYPKWWRX-UHFFFAOYSA-N 0.000 description 1
- QUDZAFKCASPJLX-UHFFFAOYSA-N 2-aminophenol;hydron;chloride Chemical compound Cl.NC1=CC=CC=C1O QUDZAFKCASPJLX-UHFFFAOYSA-N 0.000 description 1
- VSTZVCJQGSLNLL-UHFFFAOYSA-N 2-aminophenyl hydrogen sulfate Chemical compound NC1=CC=CC=C1OS(O)(=O)=O VSTZVCJQGSLNLL-UHFFFAOYSA-N 0.000 description 1
- LJCWONGJFPCTTL-UHFFFAOYSA-N 4-hydroxyphenylglycine Chemical compound OC(=O)C(N)C1=CC=C(O)C=C1 LJCWONGJFPCTTL-UHFFFAOYSA-N 0.000 description 1
- 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 1
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 description 1
- 241001397173 Kali <angiosperm> Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- CTYRPMDGLDAWRQ-UHFFFAOYSA-N phenyl hydrogen sulfate Chemical compound OS(=O)(=O)OC1=CC=CC=C1 CTYRPMDGLDAWRQ-UHFFFAOYSA-N 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 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
- G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
- G03C5/265—Supplying of photographic processing chemicals; Preparation or packaging thereof of powders, granulates, tablets
Definitions
- This invention relates to single-powder photographicdevelopers, and more particularly to a single-powder developer in which the ingredients of the developer are intimately mixed in the form of dry powder with powdered metaboric acid (H302), as a stabilizing agent to prevent disadvantageous interaction between the or anic developer component and the basic component ofthe single-powder mixture.
- powdered metaboric acid H302
- the alkali component may be the stable hydrate of an alkali carbonate, a desiccated alkali carbonate, an alkali metaborate, or an alkali sulfite. Generally the stable alkali carbonate monohydrate is preferred.
- the oxidation preventing compound may be potassium bromide or iodide. Stabilizing components for such a single-powder developer are disclosed in Patent 2,384,592, of September 11, 1945, and include maleic anhydride, salicyclic acid, al-
- an improved stabilizing agent which makes possible the production of single-powder developers having improved stabilizing characteristics containing as the alkali ingredient, sodium metaborate.
- metaboric acid does not have the objectionable characteristics possessed by phthalic anhydride. Because metaboric acid is less acid than phthalic anhydride it does not react as easily or as violently as phthalic anhydride with alkali carbonates or alkali sulfites such as sodium carbonate and sodium sulfite. In this respect it is noted that the pH of phthalic anhydride is about 2.4 while the pH of metaboric acid is about 5.4 at 3% concentrations. 'Metaboric acid is especially suited as a stabilizer and has characteristics required for a stabilizer. It
- a preferred embodiment of the present inven-' tion involves the use in the single-powder photographic developer mixture of either the stable hydrate of an alkali carbonate or also a desiccated alkali carbonate.
- the alkali carbonate hydrate appears to be more stable in the presence of an organic developer than a comparable quan-,
- a stable alkali carbonate such as sodium carbonate monohydrate
- metaboric acid may contain the other well known ingredients normally present in a developer, such as sodium sulfite and potassium bromide, the normal and known function of the alkali sulfite being that of preservative, lessening the oxidation in solution of the organic developing agent; while the known function of potassium bromide is that of a restrainer particularly inhibiting fog formation in the development of the silver image.
- sodium metaborate is employed its moisture content should be not more than 35% and preferably be about
- one may proceed by first mixing th stabilizer and the basic component, adding and mixing therewith the developing agent, which is followed by incorporating the other ingredients. However, one can mix all the ingredients together at the same time without causing any diiliculty.
- Example 8 Grains Sodium sulfite 50 Sodium carbonate monohydrate 54 Potassium bromide 1 Metaboric acid 2.2 p-Aminophenol sulfate 7.3
- Example 10 Grams Sodium sulfite 75 Sodium carbonate monohydrate 30 Potassium iodide .01 Metaboric acid 2.2 Hydroquinone 9 Elon 1
- Example 11 Grams Elon 10.0 Anhydrous sodium sulfite. 1 100.0 Sodium metaborate 20.0 Metaboric acid 4.0
- a stable single-powder photographic developer composition containing an organic silver halide developer, a stabilizing agent comprising metaboric acid and a soluble, stable, and photographically compatible basic ingredient selected from the group consisting of alkali borates, sulfites and carbonates.
- a stable single-powder photographic developer composition containing an organic silver halide developer, a stabilizing agent comprising metaboric acid, an antifoggant, and a soluble, stable, and photographically compatible basic ingredient selected from the group consisting of alkali borates, sulfites and carbonates.
- a stable single-powder photographic developer composition containing an organic silver halide developer, sodium carbonate monohydrate;
- a stable single-powder photographic developer containing an organic silver halide developer, an anhydrous alkali carbonate, an alkali sulfite and metaboric acid.
- a stable single-powder photographic developer composition containing an organic silver halide developer, sodium sulfite, sodium metaborate, and metaboric acid.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE520998D BE520998A (en(2012)) | 1952-06-26 | ||
| US295834A US2666703A (en) | 1952-06-26 | 1952-06-26 | Single-powder photographic developers stabilized with metaboric acid |
| FR1079629D FR1079629A (fr) | 1952-06-26 | 1953-06-26 | Nouveau révélateur photographique en poudre |
| GB17744/53A GB729388A (en) | 1952-06-26 | 1953-06-26 | Improvements in single powder photographic developers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US295834A US2666703A (en) | 1952-06-26 | 1952-06-26 | Single-powder photographic developers stabilized with metaboric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2666703A true US2666703A (en) | 1954-01-19 |
Family
ID=23139409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US295834A Expired - Lifetime US2666703A (en) | 1952-06-26 | 1952-06-26 | Single-powder photographic developers stabilized with metaboric acid |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2666703A (en(2012)) |
| BE (1) | BE520998A (en(2012)) |
| FR (1) | FR1079629A (en(2012)) |
| GB (1) | GB729388A (en(2012)) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739894A (en) * | 1954-04-01 | 1956-03-27 | Eastman Kodak Co | Single powder photographic developers containing lithium hydroxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2606118A (en) * | 1951-02-09 | 1952-08-05 | Eastman Kodak Co | Stabilizing agent for single powder photographic developers |
-
0
- BE BE520998D patent/BE520998A/xx unknown
-
1952
- 1952-06-26 US US295834A patent/US2666703A/en not_active Expired - Lifetime
-
1953
- 1953-06-26 GB GB17744/53A patent/GB729388A/en not_active Expired
- 1953-06-26 FR FR1079629D patent/FR1079629A/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2606118A (en) * | 1951-02-09 | 1952-08-05 | Eastman Kodak Co | Stabilizing agent for single powder photographic developers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739894A (en) * | 1954-04-01 | 1956-03-27 | Eastman Kodak Co | Single powder photographic developers containing lithium hydroxide |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1079629A (fr) | 1954-12-01 |
| GB729388A (en) | 1955-05-04 |
| BE520998A (en(2012)) |
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