Photographic material containing a novel dir-compound
AssigneeEastman Kodak Company
InventorsRoy C. DeSelms, Jon A. Kapecki
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Abstract
Photographic elements and processes are described which employ compounds capable of releasing, as a function of silver halide development, a deactivatable development inhibitor to provide a combination of desirable sensitometric results. The deactivatable development inhibitor has the structure: ##STR1## wherein X is alkylene of 1 to 3 carbon atoms; R is alkyl of 1 to 4 carbon atoms; and the sum of the carbon atoms in X and R is 5 or less.
Claims11
A photographic element comprising a support bearing a silver halide emulsion layer and a photographic compound which, as a function of silver halide development, provides a development inhibitor having the structure:
- ##STR26## wherein X is alkylene of 1 to 3 carbon atoms;
- R is alkyl of 1 to 4 carbon atoms;
- and
- the sum of the carbon atoms in X and R is 5 or less.
A process of forming a color photographic image which comprises developing an exposed silver halide photographic element, which yields a dye image, in the presence of a development inhibitor having the structure ##STR29## where X is alkylene of 1 to 3 carbon atoms, R is alkyl of 1 to 4 carbon atoms, and the sum of the carbon atoms in X and R is 5 or less.
Dependencies are inferred from the claim text.