GB1275375A - Photographic silver halide development - Google Patents
Photographic silver halide developmentInfo
- Publication number
- GB1275375A GB1275375A GB47751/70A GB4775170A GB1275375A GB 1275375 A GB1275375 A GB 1275375A GB 47751/70 A GB47751/70 A GB 47751/70A GB 4775170 A GB4775170 A GB 4775170A GB 1275375 A GB1275375 A GB 1275375A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver halide
- silver
- photographic material
- imidazole
- micron
- 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
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
- Y10S430/135—Cine film
-
- 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
- Y10S430/162—Protective or antiabrasion layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1275375 Photographic silver halide development FUJI PHOTO FILM CO Ltd 7 Oct 1970 [8 Oct 1969] 47751/70 Heading G2C A method of developing a silver halide black and white photographic material comprising silver halide grains not exceeding 0À3 micron in mean grain size comprises developing the exposed photographic material in a developer solution containing hydroquinone and at least 0À5g of imidazole per litre of developer solution. The solution preferably contains not more than 10g of imidazole per litre, and preferably has apH of 8À5 to 12À0. The silver halide is preferably finegrain silver chlorobromide containing not more than 1% of silver iodide, the mean particle size of which silver halide does not exceed 0À2 micron. The imidazole is a development accelerator which increases the effective speed of the photographic material without increasing fog or deteriorating the granularity of the developed silver.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP44080538A JPS4828295B1 (en) | 1969-10-08 | 1969-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1275375A true GB1275375A (en) | 1972-05-24 |
Family
ID=13721115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB47751/70A Expired GB1275375A (en) | 1969-10-08 | 1970-10-07 | Photographic silver halide development |
Country Status (5)
Country | Link |
---|---|
US (1) | US3708299A (en) |
JP (1) | JPS4828295B1 (en) |
DE (1) | DE2049502A1 (en) |
FR (1) | FR2065100A5 (en) |
GB (1) | GB1275375A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3808003A (en) * | 1969-01-24 | 1974-04-30 | Fuji Photo Film Co Ltd | Photographic material development method |
JPS555105B2 (en) * | 1972-04-01 | 1980-02-04 | ||
JPS5811937A (en) * | 1981-07-15 | 1983-01-22 | Fuji Photo Film Co Ltd | Silver dye bleach processing method |
JPH0690455B2 (en) * | 1986-07-02 | 1994-11-14 | 富士写真フイルム株式会社 | Processing method of silver halide photographic light-sensitive material |
US5026629A (en) * | 1990-02-07 | 1991-06-25 | Eastman Kodak Company | Fixing bath for black and white photographic elements |
-
1969
- 1969-10-08 JP JP44080538A patent/JPS4828295B1/ja active Pending
-
1970
- 1970-10-07 FR FR7036141A patent/FR2065100A5/fr not_active Expired
- 1970-10-07 GB GB47751/70A patent/GB1275375A/en not_active Expired
- 1970-10-08 US US00079335A patent/US3708299A/en not_active Expired - Lifetime
- 1970-10-08 DE DE19702049502 patent/DE2049502A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3708299A (en) | 1973-01-02 |
FR2065100A5 (en) | 1971-07-23 |
DE2049502A1 (en) | 1971-04-15 |
JPS4828295B1 (en) | 1973-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |