Photographic elements containing composite reflective grains

Details Photographic elements containing composite reflective grains Photographic elements containing composite reflective grains

1999-04-15

1999-12-07

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430509, 430567, G03C 1035, G03C 146

Patent

active

059981156

ABSTRACT:
A photographic element is disclosed that relies upon high bromide silver halide grains that are sulfur and/or gold sensitized for latent image formation. Coated to receive exposing radiation directly from a layer containing the latent image forming grains is a non-imaging layer containing (a) tabular silver halide grains (i) comprised of greater than 50 mole percent bromide, based on silver, (ii) having a thickness in the range of from 0.03 to 0.20 .mu.m, and (iii) having an average aspect ratio of greater than 20, and (b) silver halide epitaxy selectively positioned adjacent edges of said tabular grains in said non-imaging layer, said silver halide epitaxy (i) containing greater than 50 mole percent chloride, based on silver, and (ii) accounting for from 0.1 to 50 percent of the total silver in the composite grains.

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