BE502879A - - Google Patents
Info
- Publication number
- BE502879A BE502879A BE502879DA BE502879A BE 502879 A BE502879 A BE 502879A BE 502879D A BE502879D A BE 502879DA BE 502879 A BE502879 A BE 502879A
- Authority
- BE
- Belgium
Links
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
- G03C5/50—Reversal development; Contact processes
-
- 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
- G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
- G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
- G03C1/48561—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent hydrazine compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US159150A US2563785A (en) | 1950-04-29 | 1950-04-29 | Direct positive photographs from hydrazine-containing developers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE502879A true BE502879A (un) |
Family
ID=22571289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE502879D BE502879A (un) | 1950-04-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2563785A (un) |
| BE (1) | BE502879A (un) |
| DE (1) | DE877548C (un) |
| FR (1) | FR1087759A (un) |
| GB (1) | GB702162A (un) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2588982A (en) * | 1950-10-26 | 1952-03-11 | Eastman Kodak Co | Direct positive photographs using hydrazine in the emulsion |
| BE512294A (un) * | 1951-06-27 | |||
| US2706157A (en) * | 1951-07-21 | 1955-04-12 | Grant Photo Products Inc | Processing photographic paper and film |
| BE636671A (un) * | 1960-05-13 | |||
| GB1195837A (en) * | 1966-10-24 | 1970-06-24 | Agfa Gevaert Nv | Method of Producing Photographic Images |
| JPS5115745B1 (un) * | 1971-03-26 | 1976-05-19 | ||
| US3917485A (en) * | 1973-01-18 | 1975-11-04 | Eastman Kodak Co | Method of making photographic silver halide emulsions and products thereof |
| US4030925A (en) * | 1975-08-06 | 1977-06-21 | Eastman Kodak Company | Photographic compositions and elements including internal latent image silver halide grains and acylhydrazinophenylthiourea nucleating agents therefor |
| US4031127A (en) * | 1975-08-06 | 1977-06-21 | Eastman Kodak Company | Acyl hydrazino thiourea derivatives as photographic nucleating agents |
| US4030920A (en) * | 1976-04-12 | 1977-06-21 | Eastman Kodak Company | Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement |
| US4080207A (en) * | 1976-06-29 | 1978-03-21 | Eastman Kodak Company | Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents |
| JPS5814664B2 (ja) * | 1976-12-30 | 1983-03-22 | 富士写真フイルム株式会社 | ハロゲン化銀写真感光材料の処理方法 |
| JPS6055820B2 (ja) * | 1979-03-26 | 1985-12-06 | コニカ株式会社 | 直接ポジハロゲン化銀写真感光材料 |
| JPS55138742A (en) * | 1979-04-17 | 1980-10-29 | Fuji Photo Film Co Ltd | Silver halide emulsion developing method |
| JPS59201049A (ja) * | 1983-04-30 | 1984-11-14 | Konishiroku Photo Ind Co Ltd | ポジ型画像の形成方法 |
| US4459347A (en) * | 1983-05-11 | 1984-07-10 | Eastman Kodak Company | Adsorbable arylhydrazides and applications thereof to silver halide photography |
| US4478928A (en) * | 1983-05-11 | 1984-10-23 | Eastman Kodak Company | Application of activated arylhydrazides to silver halide photography |
| US4560638A (en) * | 1984-10-09 | 1985-12-24 | Eastman Kodak Company | Halftone imaging silver halide emulsions, photographic elements, and processes which employ novel arylhydrazides |
| US4661438A (en) | 1985-04-04 | 1987-04-28 | Eastman Kodak Company | Quaternized tellurium salt fog inhibiting agents for silver halide photography |
| DE3681347D1 (de) | 1985-05-31 | 1991-10-17 | Konishiroku Photo Ind | Verfahren zur herstellung eines direkt positiven farbbildes. |
| DE3788600T2 (de) * | 1986-07-22 | 1994-04-28 | Fuji Photo Film Co Ltd | Verfahren zur Behandlung eines farbphotographischen Silberhalogenidmaterials. |
| US4937160A (en) * | 1988-08-27 | 1990-06-26 | E. I. Du Pont De Nemours And Company | Photographic silver halide elements containing aryl hydrazides |
| EP0444506B1 (de) * | 1990-02-26 | 1994-10-26 | Du Pont De Nemours (Deutschland) Gmbh | Arylhydrazide enthaltende photographische Silberhalogenidmaterialien |
| EP0603433A1 (en) * | 1992-12-22 | 1994-06-29 | Agfa-Gevaert N.V. | Method of making direct-positive images |
| EP0754967A1 (en) | 1995-07-14 | 1997-01-22 | Agfa-Gevaert N.V. | Photographic direct positive material containing a particular stabilizer |
| JP2003026651A (ja) * | 2001-07-09 | 2003-01-29 | Japan Hydrazine Co Inc | スルホコハク酸ジヒドラジド塩及びその製造方法 |
-
0
- BE BE502879D patent/BE502879A/xx unknown
-
1950
- 1950-04-29 US US159150A patent/US2563785A/en not_active Expired - Lifetime
-
1951
- 1951-04-28 FR FR1087759D patent/FR1087759A/fr not_active Expired
- 1951-04-29 DE DEE3674A patent/DE877548C/de not_active Expired
- 1951-04-30 GB GB10145/51A patent/GB702162A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1087759A (fr) | 1955-02-28 |
| US2563785A (en) | 1951-08-07 |
| DE877548C (de) | 1953-05-26 |
| GB702162A (en) | 1954-01-13 |