Mixture of nondiffusible redox dye-releasers for curve shape control

In a photographic element comprising a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, cyan dye-releasing or dye precursor-releasing compound capable of releasing a diffusible cyan dye or dye precursor, a green-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, magenta dye-releasing or dye precursor-releasing compound capable of releasing a diffusible magenta dye or dye precursor, and a blue-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, yellow dye-releasing or dye precursor-releasing compound capable of releasing a diffusible yellow dye or dye precursor, the improvement wherein at least one of said silver halide emulsion layers has associated therewith a second ballasted, nondiffusible, redox, dye-releasing or dye precursor-releasing compound capable of releasing a diffusible dye or dye precursor, said dye or dye precursor moiety attached to said second compound having substantially the same hue as the dye or dye precursor moiety attached to said first compound, and wherein said second compound has a different relative reactivity than said first compound, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive.

In a photographic assemblage comprising:

• (a) a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, dye-releasing or dye precursor-releasing compound capable of releasing a diffusible dye or dye precursor;
• (b) a dye image-receiving layer;
• and
• (c) an alkaline processing composition and means for discharging same within said assemblage;
• said assemblage containing a silver halide developing agent;
• the improvement wherein said silver halide emulsion layer has associated therewith a second ballasted, nondiffusible, redox, dye-releasing or dye precursor-releasing compound capable of releasing a diffusible dye or dye precursor, said second compound having a different relative reactivity than said first compound, the reactivity of the compound which is more-reactive being at least 1.5 times the reactivity of the compound which is less-reactive.

In a photographic assemblage comprising:

• (a) a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, cyan dye-releasing or dye precursor-releasing compound capable of releasing a diffusible cyan dye or dye precursor, a green-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, magenta dye-releasing or dye precursor-releasing compound capable of releasing a diffusible magenta dye or dye precursor, and a blue-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, yellow dye-releasing or dye precursor-releasing compound capable of releasing a diffusible yellow dye or dye precursor;
• (b) a dye image-receiving layer;
• and
• (c) an alkaline processing composition and means for discharging same within said assemblage;
• said assemblage containing a silver halide developing agent;
• the improvement wherein at least one of said silver halide emulsion layers has associated therewith a second ballasted, nondiffusible, redox, dye-releasing or dye precursor-releasing compound capable of releasing a diffusible dye or dye precursor, said dye or dye precursor moiety attached to said second compound having substantially the same hue as the dye or dye precursor moiety attached to said first compound, and wherein said second compound has a different relative reactivity than said first compound, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive.

In an integral photographic assemblage comprising:

• (a) a photosensitive element comprising a transparent support having thereon the following layers in sequence:
• a dye image-receiving layer, an alkaline solution-permeable, light-reflective layer, an alkaline solution-permeable, opaque layer, a red-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, cyan dye-releasing or dye precursor-releasing compound capable of releasing a diffusible cyan dye or dye precursor, a green-sensitive silver halide emulsion layer having associated therewith a first ballasted, nondiffusible, redox, magenta dye-releasing or dye precursor-releasing compound capable of releasing a diffusible magenta dye or dye precursor, and a blue-sensitive silver halide emulsion having associated therewith a first ballasted, nondiffusible redox, yellow dye-releasing or dye precursor-releasing compound capable of releasing a diffusible yellow dye or dye precursor;
• (b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support having thereon, in sequence, a neutralizing layer and a timing layer;
• and
• (c) a rupturable container containing an alkaline processing composition and an opacifying agent which is so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer;
• said assemblage containing a silver halide developing agent;
• the improvement wherein at least one of said silver halide emulsion layers has associated therewith a second ballasted, nondiffusible, redox, dye-releasing or dye precursor-releasing compound capable of releasing a diffusible dye or dye precursor, said dye or dye precursor moiety attached to said second compound having substantially the same hue as the dye or dye precursor moiety attached to said first compound, and wherein said second compound has a different relative reactivity than said first compound, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive.

A process for producing a photographic image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith two nondiffusible redox dye-releasing or dye precursor-releasing compounds having different relative reactivities, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive, said process comprising:

• treating said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each exposed silver halide emulsion layer, whereby:
• (a) said dye-releasing or dye precursor-releasing compounds release a diffusible dye or dye precursor in an imagewise distribution as a function of said development of said silver halide emulsion layer;
• and
• (b) at least a portion of said imagewise distribution of said dye or dye precursor diffuses out of said element.

A process for producing a photographic image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith two nondiffusible redox dye-releasing or dye precursor-releasing compounds having a different relative reactivities, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive, each said nondiffusible compound being a ballasted compound having a dye or dye precursor moiety attached thereto through a sulfonamido group which is alkali-cleavable upon oxidation, said process comprising:

• treating said element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each exposed silver halide emulsion layer, whereby:
• (a) said developing agent becomes oxidized;
• (b) said oxidized developing agent cross-oxidizes said sulfonamido compounds;
• (c) said oxidized sulfonamido compounds then cleave, thus forming an imagewise distribution of said dye or dye precursor moieties as a function of said development of said silver halide emulsion layer;
• and
• (d) at least a portion of said imagewise distribution of said dye or dye precursor moieties diffuses out of said element.