GB471922A - An improvements in photographic developers and fixing agents - Google Patents
An improvements in photographic developers and fixing agentsInfo
- Publication number
- GB471922A GB471922A GB7638/36A GB763836A GB471922A GB 471922 A GB471922 A GB 471922A GB 7638/36 A GB7638/36 A GB 7638/36A GB 763836 A GB763836 A GB 763836A GB 471922 A GB471922 A GB 471922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- developing
- march
- fixing
- containing sodium
- fixing agents
- 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
Links
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- 125000005341 metaphosphate group Chemical group 0.000 abstract 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 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 235000010261 calcium sulphite Nutrition 0.000 abstract 1
- 239000004295 calcium sulphite Substances 0.000 abstract 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 abstract 1
- 235000011180 diphosphates Nutrition 0.000 abstract 1
- 239000008233 hard water Substances 0.000 abstract 1
- 229940005740 hexametaphosphate Drugs 0.000 abstract 1
- 229940048084 pyrophosphate Drugs 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 abstract 1
- 229940048086 sodium pyrophosphate Drugs 0.000 abstract 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 abstract 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 abstract 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
- G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE471922X | 1935-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB471922A true GB471922A (en) | 1937-09-13 |
Family
ID=6541339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7638/36A Expired GB471922A (en) | 1935-03-13 | 1936-03-13 | An improvements in photographic developers and fixing agents |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE414156A (enrdf_load_stackoverflow) |
| FR (1) | FR802513A (enrdf_load_stackoverflow) |
| GB (1) | GB471922A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541470A (en) * | 1947-05-28 | 1951-02-13 | Eastman Kodak Co | Photographic silver halide developing solutions containing calcium precipitation inhibitors |
| US2657138A (en) * | 1950-01-03 | 1953-10-27 | Leonard A Robbins | Photographic film developing composition containing beta, beta'-di-chloroethyl ether |
-
0
- BE BE414156D patent/BE414156A/xx unknown
-
1936
- 1936-03-02 FR FR802513D patent/FR802513A/fr not_active Expired
- 1936-03-13 GB GB7638/36A patent/GB471922A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541470A (en) * | 1947-05-28 | 1951-02-13 | Eastman Kodak Co | Photographic silver halide developing solutions containing calcium precipitation inhibitors |
| US2657138A (en) * | 1950-01-03 | 1953-10-27 | Leonard A Robbins | Photographic film developing composition containing beta, beta'-di-chloroethyl ether |
Also Published As
| Publication number | Publication date |
|---|---|
| FR802513A (fr) | 1936-09-07 |
| BE414156A (enrdf_load_stackoverflow) |
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