Photographic material and process comprising a coupler capable of forming a wash-out dye (Q/Q)

Abstract

A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula: --X--Rel.sup.2 --T.sup.2 --INH wherein; X is selected from oxygen, nitrogen or sulfur; X--Rel.sup.2 contains a photographic ballast and is a releasing group for releasing T.sup.2 --INH from X--Rel.sup.2 by elimination electron transfer reaction during photographic processing without substantial delay of releasing; T.sup.2 is a timing group that releases INH by elimination electron transfer reaction with timing delay during photographic processing; INH is a development inhibitor group. The photographic coupler (A) enables formation of easily removable dyes in photographic elements and processes that provide images having improved acutance, stability and interimage effects.

Dependencies are inferred from the claim text.