Light-sensitive element for silver salt diffusion transfer with iodine trapping layer
AssigneeFuji Photo Film Co., Ltd.
InventorsHideki Takaki, Yukio Karino, Noriyuki Inoue
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Abstract
A light-sensitive element for the silver salt diffusion transfer method is described, comprising a support bearing thereon at least a light-sensitive silver halide emulsion layer containing silver iodide, wherein at least one layer for trapping on iodide ion is provided between the support and the emulsion layer. This light-sensitive element provides a silver image which is improved in fading and discoloration during storage.
Claims6
In a method for forming an image by silver salt diffusion transfer where an imagewise exposed silver halide photographic element is superposed on an image-receiving element containing a silver-precipitating agent and then an alkaline processing solution containing a solvent for silver halide is introduced between the light-sensitive and image-receiving elements in the presence of a developing agent, the improvement wherein the imagewise exposed silver halide photographic element comprises a support and a light-sensitive silver halide emulsion containing silver iodide provided on the support, further comprising at least one layer capable of trapping iodide ions which is a layer of light-insensitive silver iodobromide having a silver iodide content of from 0.5 to 20 mol% provided between the support and light-sensitive silver halide emulsion layer.
In a method for forming an image by silver salt diffusion transfer where an imagewise exposed silver halide photographic element is superposed on an image-receiving element containing a silver-precipitating agent and then an alkaline processing solution containing a solvent for silver halide is introduced between the light-sensitive and image-receiving elements in the presence of a developing agent, the improvement wherein the imagewise exposed silver halide photographic element comprises a support and a light-sensitive silver halide emulsion layer containing silver iodide provided on the support, and at least one layer capable of trapping iodide ions is provided between the support and the light-sensitive silver halide emulsion layer, wherein said layer capable of trapping iodide ions is a layer containing a cationic polyelectrolyte which does not contain iodide ions as counter ions.
Dependencies are inferred from the claim text.