Direct-positive core-shell emulsions and photographic elements a

Details Direct-positive core-shell emulsions and photographic elements a Direct-positive core-shell emulsions and photographic elements a

1981-11-12

1983-07-26

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430503, 430409, 430410, 430375, 430378, 430377, 430542, 430547, 430550, 430598, 430603, 430605, 430608, 430940, 430642, G03C 134

Patent

active

043954782

ABSTRACT:
A radiation-sensitive emulsion for use in forming a direct-positive image is disclosed. The emulsion is comprised of core-shell silver halide grains. The shell portions of the grains contain polyvalent metal ions to reduce rereversal.

REFERENCES:
patent: 3713832 (1973-01-01), Shiba et al.
patent: 3854953 (1974-12-01), Shiba et al.

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