Photographic print elements containing cubical grain silver iodo

Details Photographic print elements containing cubical grain silver iodo Photographic print elements containing cubical grain silver iodo

1996-05-17

1998-03-17

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430605, G03C 1005, G03C 1035, G03C 109

Patent

active

057285160

ABSTRACT:
Photographic print elements are disclosed of enhanced speed and controlled minimum densities provided by emulsion layer units that contain emulsions that are blends of (a) cubical silver iodochloride grains that contain iodide in a controlled, non-uniform distribution forming a core containing at least half of total silver, a iodide-free surface shell having a thickness of greater than 25 .ANG., and a sub-surface shell that contains a maximum iodide concentration and (b) minimum density controlling silver halide grains that are of smaller mean grain size than the silver iodochloride grains and that consist essentially of chloride and/or bromide and are present in a molar concentration at least equal to that of silver iodide in the silver iodochloride grains.

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Research Disclosure, vol. 365, Sep. 1994, Item 36544.

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