JPS5662246A - Sensitizing method for direct positive silver halide photographic emulsion - Google Patents
Sensitizing method for direct positive silver halide photographic emulsionInfo
- Publication number
- JPS5662246A JPS5662246A JP13813179A JP13813179A JPS5662246A JP S5662246 A JPS5662246 A JP S5662246A JP 13813179 A JP13813179 A JP 13813179A JP 13813179 A JP13813179 A JP 13813179A JP S5662246 A JPS5662246 A JP S5662246A
- Authority
- JP
- Japan
- Prior art keywords
- silver halide
- direct positive
- positive silver
- support
- halide photographic
- 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.)
- Pending
Links
Abstract
PURPOSE: To enhance the sensitivity of a direct positive silver halide emulsion without exerting unfavorable influence on other photographic characteristics by applying the emulsion to a support having a polyolefin surface layer immediately after corona discharge treatment.
CONSTITUTION: A direct positive silver halide emulsion is applied to the surface of the support of a photographic material within 2min after the corona discharge treatment of the support surface, and it is dried. The support has a coat of polyethylene or other polyolefin or is made of polyolefin. Thus, the sensitivity alone of the emulsion can be enhanced with very little influence on other photographic characteristics such as r-value and Dmax.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13813179A JPS5662246A (en) | 1979-10-25 | 1979-10-25 | Sensitizing method for direct positive silver halide photographic emulsion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13813179A JPS5662246A (en) | 1979-10-25 | 1979-10-25 | Sensitizing method for direct positive silver halide photographic emulsion |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662246A true JPS5662246A (en) | 1981-05-28 |
Family
ID=15214701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13813179A Pending JPS5662246A (en) | 1979-10-25 | 1979-10-25 | Sensitizing method for direct positive silver halide photographic emulsion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662246A (en) |
-
1979
- 1979-10-25 JP JP13813179A patent/JPS5662246A/en active Pending
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