GB1203744A - Photographic emulsions for the use in the productions of direct positive images - Google Patents
Photographic emulsions for the use in the productions of direct positive imagesInfo
- Publication number
- GB1203744A GB1203744A GB189669A GB189669A GB1203744A GB 1203744 A GB1203744 A GB 1203744A GB 189669 A GB189669 A GB 189669A GB 189669 A GB189669 A GB 189669A GB 1203744 A GB1203744 A GB 1203744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thallium
- salt
- direct positive
- emulsions
- mercury
- 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
- 239000000839 emulsion Substances 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title 1
- 150000002730 mercury Chemical class 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- -1 silver halide Chemical class 0.000 abstract 2
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 abstract 2
- 150000003475 thallium Chemical class 0.000 abstract 2
- 229910052716 thallium Inorganic materials 0.000 abstract 2
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 229960002523 mercuric chloride Drugs 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 abstract 1
- 231100000489 sensitizer Toxicity 0.000 abstract 1
- 230000003595 spectral effect Effects 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/485—Direct positive emulsions
- G03C1/48515—Direct positive emulsions prefogged
- G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681622256 DE1622256A1 (de) | 1968-01-20 | 1968-01-20 | Photographische Emulsionen fuer die Herstellung direkt-positiver Bilder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1203744A true GB1203744A (en) | 1970-09-03 |
Family
ID=5682629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB189669A Expired GB1203744A (en) | 1968-01-20 | 1969-01-13 | Photographic emulsions for the use in the productions of direct positive images |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE727090A (enrdf_load_stackoverflow) |
| DE (1) | DE1622256A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2000498A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1203744A (enrdf_load_stackoverflow) |
-
1968
- 1968-01-20 DE DE19681622256 patent/DE1622256A1/de active Pending
-
1969
- 1969-01-13 GB GB189669A patent/GB1203744A/en not_active Expired
- 1969-01-20 FR FR6900952A patent/FR2000498A1/fr not_active Withdrawn
- 1969-01-20 BE BE727090D patent/BE727090A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2000498A1 (enrdf_load_stackoverflow) | 1969-09-05 |
| BE727090A (enrdf_load_stackoverflow) | 1969-07-22 |
| DE1622256A1 (de) | 1970-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |