Image-recording materials with 1,3-sulfur-nitrogen dye releasers

Details Image-recording materials with 1,3-sulfur-nitrogen dye releasers Image-recording materials with 1,3-sulfur-nitrogen dye releasers

1996-11-20

1997-08-19

Schilling, Richard L.

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

430222, 430562, G03C 812

Patent

active

056587058

ABSTRACT:
There are described color-providing compounds having at least two cyclic 1,3-sulfur-nitrogen moieties and one complete dye or dye intermediate. The color-providing compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a complete dye or dye intermediate in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic, photothermographic, thermographic, and other processes.

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