Photographic Element containing high chloride tabular grain silv

Details Photographic Element containing high chloride tabular grain silv Photographic Element containing high chloride tabular grain silv

1997-02-24

1998-05-12

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, G03C 1035

Patent

active

057503257

ABSTRACT:
Photographic elements having bromide or iodide ion stabilized high chloride {111} tabular grain emulsions are rapidly processed. The emulsion grains comprise a high chloride core with a surrounding band of higher bromide or iodide ion than that found in the core. The emulsion is precipitated in the presence of an organic grain growth modifier or surface stabilizer. Specific developing conditions of temperature, time, bromide ion concentration, color developing agent concentration and ratio of developing agent to bromide ion allow for the rapid processing of these elements.

REFERENCES:
patent: 4952491 (1990-08-01), Nishikawa et al.
patent: 5358830 (1994-10-01), Twist
patent: 5418117 (1995-05-01), Marsden
patent: 5443944 (1995-08-01), Krafft et al.
patent: 5508160 (1996-04-01), Maskasky

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