US2153619A - Production of photographs in blueblack tones - Google Patents
Production of photographs in blueblack tones Download PDFInfo
- Publication number
- US2153619A US2153619A US213448A US21344838A US2153619A US 2153619 A US2153619 A US 2153619A US 213448 A US213448 A US 213448A US 21344838 A US21344838 A US 21344838A US 2153619 A US2153619 A US 2153619A
- Authority
- US
- United States
- Prior art keywords
- tones
- photographs
- production
- thiohydantoin
- silver
- 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
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000000839 emulsion Substances 0.000 description 18
- 229910052709 silver Inorganic materials 0.000 description 14
- 239000004332 silver Substances 0.000 description 14
- -1 ethyl mustard oil Chemical compound 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- UGWULZWUXSCWPX-UHFFFAOYSA-N 2-sulfanylideneimidazolidin-4-one Chemical class O=C1CNC(=S)N1 UGWULZWUXSCWPX-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- LGDSHSYDSCRFAB-UHFFFAOYSA-N Methyl isothiocyanate Chemical compound CN=C=S LGDSHSYDSCRFAB-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000008164 mustard oil Substances 0.000 description 2
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 2
- TYIVOVNBZSLGBB-UHFFFAOYSA-N 3-ethyl-5,5-dimethyl-2-sulfanylideneimidazolidin-4-one Chemical compound CCN1C(=S)NC(C)(C)C1=O TYIVOVNBZSLGBB-UHFFFAOYSA-N 0.000 description 1
- 241001479434 Agfa Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- ZOJBYZNEUISWFT-UHFFFAOYSA-N allyl isothiocyanate Chemical compound C=CCN=C=S ZOJBYZNEUISWFT-UHFFFAOYSA-N 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- G03C5/305—Additives other than developers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/166—Toner containing
Definitions
- Another object of the invention is the provision of a process of producing su'ch blue-black pictures in which a dialkylated 3-alkyl-2-thiohydantoin is present during development.
- Yet another object is to provide a process for theproduction of such pictures by using a dialkylated 3-alkylene-2-thiohydantoin.
- the novel agent may be added to the developing bath or introduced before the development, for example as an addition to the emulsion or to the photographic material.
- the incorporation of the agent in the emulsion may be carried out by adding it either to the raw material or to the emulsion in any desired stage in its manufacture or by bathing the finished emulsion layer before exposure in a solution of the agent.
- the agent may, however, be incorporated in the emulsion support, the subbing layer, sub-layer, backing layer or protecting layer, the barytage, the size for the paper on which the emulsions may be coated or the paper pulp.
- the quantity of material to be added is in all cases advantageously ascertained by preliminary experiment, whereby the optimum quantity can readily be .found.
- the decisive condition for effectiveness of the agents is that they shall be present during development; it being immaterial whether they are already present before the development or whether they reach the developer from the photographic material or come in contact therewith in the emulsion layer only during the development.
- dialkylated thiohydantoins The effect of the dialkylated thiohydantoins was not to be foreseen since it is known that unoper ready for use.
- Example 1 T a developer for, developing silver bromide paper there-is added 0.075 gram of 3.5.5' -trimeth yl-2-thiohydantoin per liter of developer.
- 3.5.5 trimethyl-z-thiohydantoin is obtained as follows: 11.8 grams of -amino-in'sobutyric acid are neutralized by a solution of potassium hydroxide of 50 per cent strength and heated with an alcoholic solution of 8 grams of methyl mustard oil. The alcohol is then evaporated and the whole heated with hydrochloric acid for a short time. The product thus obtained is recrystallized from water.
- Example 2 To a developer for developing a picture copied on silver bromide is added 0.1 gram of 3-ethyl- 5.5-dimethyl 2-thiohydantoin per liter of devel- 3-ethy1-5.5-dimethyl-2- thiohydantoin is produced analogous to the manmustard oil there is used ethyl mustard oil.
- Example 4 To a positive emulsion ready for pouring is added an. aqueous solution of 3-a11yl-5.5-di- Example 5 To a'positive emulsion ready for pouring is added an aqueous solution of 3-amylene-5.5-dimethyl-Z-thiohydantoin which is obtained analogous to the method described in Example 1;
- a photographic material comprising a silver halide emulsion layer containing a member selected from the group consisting of diallwlated 3-alkyl-2-thiohydantoins and dialkylated 3-allyl-2-thiohydantoins;
- a photographic developer comprising developing agents and a. member selected from the group consisting of dialkylated 3-alkyl-2-thiohydantoins 'and dialkylated 2-allyl-2-thiohydantoins.
Landscapes
- 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 |
|---|---|---|---|
| DEI0058323 | 1937-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2153619A true US2153619A (en) | 1939-04-11 |
Family
ID=7194747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US213448A Expired - Lifetime US2153619A (en) | 1937-06-19 | 1938-06-13 | Production of photographs in blueblack tones |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2153619A (en)) |
| BE (1) | BE428487A (en)) |
| FR (1) | FR838964A (en)) |
| GB (1) | GB515493A (en)) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3833372A (en) * | 1971-11-09 | 1974-09-03 | Fuji Photo Film Co Ltd | Viscous developing liquid for use in a silver salt diffusion transfer process |
-
0
- BE BE428487D patent/BE428487A/xx unknown
-
1938
- 1938-06-03 GB GB16680/38A patent/GB515493A/en not_active Expired
- 1938-06-07 FR FR838964D patent/FR838964A/fr not_active Expired
- 1938-06-13 US US213448A patent/US2153619A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3833372A (en) * | 1971-11-09 | 1974-09-03 | Fuji Photo Film Co Ltd | Viscous developing liquid for use in a silver salt diffusion transfer process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR838964A (fr) | 1939-03-21 |
| BE428487A (en)) | |
| GB515493A (en) | 1939-12-06 |
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