Photographic elements containing 2-equivalent pyrazolone magenta dye forming couplers and stabilizing compounds

摘要

A silver halide photographic element comprising a light sensitive silver halide containing layer which also contains a 2-equivalent pyrazolone magenta coupler, a thiomorpholine dioxide compound which has an alkoxy substituted aryl group substituent on the ring nitrogen, a compound of formula (I) below, and a hydroquinone compound of formula (R) below:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="69" wi="86" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" /></Chemistry>
wherein:
   R₃, R₄, R₁₁, R₁₂ and R₂₁ and R₃₁ are independently an alkyl group or H.

The presence of the compound (I) when used with the two-equivalent pyrazolone magenta coupler and compounds (R) and (S), can result in a photographic element with low printout and/or thermal discoloration problems.