Chemical development of a silver halide emulsion containing an arylonium salt on a polyester film support

Claim 2

A process for forming a silver image in a light-sensitive silver halide photographic material comprising a polyester film support, one or more layers on said support, including a silver halide emulsion layer and, incorporated in at least one of said layers, an antifogging amount of a compound having the formula ##STR4## wherein R 1 , R 2 , R 3 , and R 4 are individually benzyl, phenyl, naphthyl or C 1 to C 12 - alkyl phenyl group; Z is N, P, As or Sb; and X is an anion, said process comprising the steps of imagewise exposing said light-sensitive silver halide photographic material to light and developing the exposed material essentially only by treating with an aqueous silver halide developer.

Claim 3

A process as claimed in claim 1 wherein the photographic material also comprises an inorganic compound which is the source of a cation of an element selected from the group consisting of aluminum, gallium, indium and thallium.

Claim 4

A process as claimed in claim 2 wherein said inorganic compound is one member defined by one of the following formulas (I) to (VI): M.sup.+A.sup.- (I) (m.sup.+).sub.2 b.sup.-.sup.- (ii) wherein M + is Ga + , In + , or Tl + , A - is OH - , NO 3 - or halogen, and B - - is O - - , S - - , Se - - or SO 4 - - , M.sup.+.sup.+(C.sup.-).sub.2 (III) m.sup.+.sup.+d.sup.-.sup.- (iv) wherein M + + is Ga + + or In + + , C - is NO 3 - or halogen, and D - - is O - - , S - - , Se - - or SO 4 - - , M.sup.+.sup.+.sup.+(E.sup.-).sub.3 (V) (m.sup.+.sup.+.sup.+).sub.2 (f.sup.-.sup.-).sub.3 (vi) wherein M + + + is Al + + + , Ga + + + , In + + + or Tl + + + , E - is NO 3 - or halogen, and F - - is O - - , S - - ,Se - - or SO 4 - - .

Claim 5

A process for forming a silver image in a light-sensitive silver halide photographic material comprising a polyester film support, one or more layers on said support, including a silver halide emulsion layer and, incorporated in at least one of said layers, an antifogging amount of a compound having the general formula ##STR5## wherein R 1 , R 2 , and R 4 are individually benzyl, phenyl, naphthyl or C 1 to C 12 -alkylphenyl group; Z is N, P, As or Sb; and X is an anion, in combination with TlNO 3 , said process comprising the steps of imagewise exposing said light-sensitive silver halide photographic material to light and developing the exposed material essentially only by treating with an aqueous silver halide developer.

Claim 6

A process for forming a silver image in a light-sensitive silver halide photographic material comprising a polyester film support, one or more layers on said support, including a silver halide emulsion layer and, incorporated in at least one of said layers, an antifogging amount of a compound having the general formula ##STR5## wherein R 1 , R 2 , and R 4 are individually benzyl, phenyl, naphthyl or C 1 to C 12 -alkylphenyl group; Z is N, P, As or Sb; and X is an anion, in combination with TlNO 3 , said process comprising the steps of imagewise exposing said light-sensitive silver halide photographic material to light and developing the exposed material essentially only by treating with an aqueous silver halide developer.