Compounds for use in a dye diffusion transfer process and photographic elements incorporating them.

摘要

A ballasted non-diffusing compound capable of dye or dye precursor release by a redox-reaction in alkaline medium characterized in that said compound corresponds to the following general formula:
CAR - L - D
wherein:
CAR represents a carrier moiety,
L represents a chemical group cleavable or releasable from the carrier moiety by a redox reaction in alkaline aqueous medium, and
D represents a dye or dye precursor part (i) containing several dye or dye-precursor units, and (ii) incorporating groups that improve the diffusibility of the released dye part or dye precursor part in a hydrophilic colloid medium when permeated by an aqueous alkaline liquid.