GB1298752A - Photographic processing method - Google Patents
Photographic processing methodInfo
- Publication number
- GB1298752A GB1298752A GB925470A GB925470A GB1298752A GB 1298752 A GB1298752 A GB 1298752A GB 925470 A GB925470 A GB 925470A GB 925470 A GB925470 A GB 925470A GB 1298752 A GB1298752 A GB 1298752A
- Authority
- GB
- United Kingdom
- Prior art keywords
- developer
- alkyl
- hydrogen
- silver halide
- substituted
- 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
- 238000003672 processing method Methods 0.000 title 1
- 229910052709 silver Inorganic materials 0.000 abstract 5
- 239000004332 silver Substances 0.000 abstract 5
- -1 silver halide Chemical class 0.000 abstract 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 125000002723 alicyclic group Chemical group 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 239000002738 chelating agent Substances 0.000 abstract 2
- 125000000623 heterocyclic group Chemical group 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000001768 cations Chemical group 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 229940095064 tartrate Drugs 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1298752 Photographic reversal processing; foggants EASTMAN KODAK CO 26 Feb 1970 [3 March 1969] 9254/70 Heading G2C Unexposed photographic silver halide is fogged by treatment with an aqueous solution containing stannous ions chelated by an organo phosphonic acid chelating agent. An exposed photographic silver halide material may be reversal processed by treatment with a first developer to form a negative silver image, fogging the residual silver halide and developing with a second developer, the chelated stannous salt being present in a fogging solution used before the second development or in the second developer. The material may be black-and-white in which case the negative silver image is bleached out prior to the second development, or it may be a colour material containing couplers or the couplers may be present in the colour developer. Stannous salts are the chloride, bromide, fluoride, acetate, sulphate and tartrate and the chelating agents specified are those of the formulae:- where R is alkyl, aryl, aralkyl, alicyclic or heterocyclic group which may be substituted, R 1 is hydrogen, alkyl, aryl, aralkyl, alicyclic or heterocyclic which may be substituted or -PO 3 M 2 , R 2 is hydrogen, -OH, alkyl substituted alkyl or -PO 3 M 2 and M is hydrogen or a cation which imparts water-solubility.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80394169A | 1969-03-03 | 1969-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1298752A true GB1298752A (en) | 1972-12-06 |
Family
ID=25187812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB925470A Expired GB1298752A (en) | 1969-03-03 | 1970-02-26 | Photographic processing method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4843138B1 (en) |
| BE (1) | BE746802A (en) |
| FR (1) | FR2037524A5 (en) |
| GB (1) | GB1298752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129629A (en) * | 1982-10-18 | 1984-05-16 | Illinois Tool Works | Printed circuit board fasteners |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5148625U (en) * | 1974-10-09 | 1976-04-12 |
-
1970
- 1970-02-26 GB GB925470A patent/GB1298752A/en not_active Expired
- 1970-03-03 FR FR7007521A patent/FR2037524A5/fr not_active Expired
- 1970-03-03 JP JP1771570A patent/JPS4843138B1/ja active Pending
- 1970-03-03 BE BE746802D patent/BE746802A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129629A (en) * | 1982-10-18 | 1984-05-16 | Illinois Tool Works | Printed circuit board fasteners |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2009693A1 (en) | 1970-09-10 |
| BE746802A (en) | 1970-08-17 |
| DE2009693B2 (en) | 1975-09-04 |
| JPS4843138B1 (en) | 1973-12-17 |
| FR2037524A5 (en) | 1970-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |