Direct reversal emulsions

Details Direct reversal emulsions Direct reversal emulsions

1990-09-10

1993-08-31

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430597, 430596, 430598, 430604, 430606, 430949, 430567, 430569, G03C 106

Patent

active

052408280

ABSTRACT:
Room light handleable direct reversal silver bromide emulsions, with up to 70 mole percent chloride, have a broad Dmin window when from 1.times.10.sup.-6 to 1.times.10.sup.-4 mole per silver mole of a polybromo coordination complex of iridium is incorporated in the silver halide grains. The emulsions are stabilized against deterioration on keeping with mercapto compounds.

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Research Disclosure, vol. 308, Dec. 1989, Item 308,118, I-D and Vl-B,F and G.
"The Role of Ionic Defects in the Radiation Physics of the Silver Halides and Their Exploitation in Photography", Cryst. Latt. Def. and Amorph. Mat., 1989, vol. 18, pp. 297-313, Gordon and Breach Science Publishers, Inc., U.K.
"The Mechanism of Ir.sup.3+ Sensitization in Silver Halide Materials", International Congress of Photographic Science, University of Cambridge, Sep. 6-10, 1982.
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