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Method of preparing silver halide grains of improved photographic and handling characteristics |
| T962004 |
Method of preparing silver halide grains of improved photographic and handling characteristics
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| Patent Drawings: | |
| Inventor: |
Dostes, et al. |
| Date Issued: |
September 6, 1977 |
| Application: |
05/782,572 |
| Filed: |
March 29, 1977 |
| Inventors: |
Dostes; Claude G. (Vincennes, FR)
Dubromel; Dany C. (Vincennes, FR)
Le Guen; Jean-Francois (Vincennes, FR)
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| U.S. Class: |
430/608 |
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| International Class: |
G03C 1/09 |
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| Abstract: |
A method is disclosed of forming silver halide grains capable of forming a surface latent image upon exposure to visible light. The grains are formed by incorporating from 10.sup.-6 to 10.sup.-10 mole of iridium per mole of silver before first ripening. The iridium is incorporated in the presence of a water soluble purine base or a water soluble salt thereof. |
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