JPS5535386A - Direct positive type silver halide photographic emulsion - Google Patents
Direct positive type silver halide photographic emulsionInfo
- Publication number
- JPS5535386A JPS5535386A JP10928278A JP10928278A JPS5535386A JP S5535386 A JPS5535386 A JP S5535386A JP 10928278 A JP10928278 A JP 10928278A JP 10928278 A JP10928278 A JP 10928278A JP S5535386 A JPS5535386 A JP S5535386A
- Authority
- JP
- Japan
- Prior art keywords
- silver halide
- halide photographic
- positive type
- photographic emulsion
- type 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.)
- Granted
Links
Abstract
PURPOSE: To obtain superior color sensitization ability to blue light, and not to lower the maximal density without raising the minimal density, by combining specified sensitizing dyes.
CONSTITUTION: A direct positive type silver halide photographic emulsion contains a sensitizing dye represented by general formula I in which Z1 and Z2 are each an atomic group needed to form a benzoxazole, benzothiazole, benzoselenazole, naphthoxazole, naphthothiazole, naphthoselenazole, pyridine, or quinoline ring; R1 and R2 are alkyl, sulfoalkyl, or carboxyalkyl; X1 - is an anion; and n is O or 1, and another sensitizing dye represented by general formula II in which Z3 is as Z1; Z4 is an atomic group needed to form a rhodanine, 2-thiooxazolidine-2,4-dione, or 2-thioselenazolidine-2,4-dione necleus; and R3 and R4 are alkyl, sulfoalkyl, or carboxyalkyl.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10928278A JPS5535386A (en) | 1978-09-05 | 1978-09-05 | Direct positive type silver halide photographic emulsion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10928278A JPS5535386A (en) | 1978-09-05 | 1978-09-05 | Direct positive type silver halide photographic emulsion |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5535386A true JPS5535386A (en) | 1980-03-12 |
JPS5648857B2 JPS5648857B2 (en) | 1981-11-18 |
Family
ID=14506208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10928278A Granted JPS5535386A (en) | 1978-09-05 | 1978-09-05 | Direct positive type silver halide photographic emulsion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5535386A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60159844A (en) * | 1984-01-31 | 1985-08-21 | Fuji Photo Film Co Ltd | Photosensitive silver halide material |
US4552828A (en) * | 1982-08-30 | 1985-11-12 | Fuji Photo Film Co., Ltd. | Direct positive silver halide photographic emulsion |
JPH0311337A (en) * | 1989-06-08 | 1991-01-18 | Konica Corp | Direct positive type silver halide photographic sensitive material and processing method for same |
-
1978
- 1978-09-05 JP JP10928278A patent/JPS5535386A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4552828A (en) * | 1982-08-30 | 1985-11-12 | Fuji Photo Film Co., Ltd. | Direct positive silver halide photographic emulsion |
JPS60159844A (en) * | 1984-01-31 | 1985-08-21 | Fuji Photo Film Co Ltd | Photosensitive silver halide material |
JPH0311337A (en) * | 1989-06-08 | 1991-01-18 | Konica Corp | Direct positive type silver halide photographic sensitive material and processing method for same |
Also Published As
Publication number | Publication date |
---|---|
JPS5648857B2 (en) | 1981-11-18 |
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