| 摘要 |
A photographic element comprising a support having situated thereon a silver halide emulsion, the emulsion comprising an alkynylamine compound of the formula: <IMAGE> (I) wherein Z represents atoms necessary to complete a 5 to 10-membered heterocyclic ring system, R1 represents hydrogen or an alkyl of from 1 to 5 carbon atoms, and R2 represents hydrogen, or an alkyl, aryl, heteroaryl, carbocyclic or heterocyclic group; and at least one dihydroxy aryl compound represented by formula II or III: <IMAGE> (II) <IMAGE> (III) wherein R3 to R12 are independently selected from the group consisting of hydrogen, hydroxy, sulfonate, or an alkyl of from 1 to 5 carbon atoms, and wherein at least two of such groups represent a hydroxy group.
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