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US 9,405,196 B2Granted
Method for preparing electrically-conductive silver images
AssigneeEastman Kodak Company
InventorsMichael Phillip Youngblood, Kenneth James Lushington
Life of this patent
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Abstract
Electrically-conductive articles are prepared to have electrically-conductive silver metal electrode grids on one or both supporting sides of a transparent substrate. Such articles are prepared by imagewise exposing conductive film element precursors having photosensitive silver halide layers, followed by development, fixing, and conductivity enhancement. The resulting silver image(s) can be treated with a stabilizing solution containing 0.5-50 mmol/l of specific stabilizing agents.
Claims16
A method for providing a first electrically-conductive silver image, the method comprising, in order:
- imagewise exposing a conductive film element precursor that comprises a transparent substrate comprising a first supporting side and an opposing second supporting side and a photosensitive silver halide emulsion layer on the first supporting side of the substrate, to radiation to provide a first latent silver image in the photosensitive silver halide emulsion layer on the first supporting side of the substrate,
- developing the first latent silver image on at least the first supporting side of the substrate to provide a first silver image corresponding to the first latent silver image on the first supporting side of the substrate, using a black-and-white developing solution,
- fixing to remove silver halide remaining in the photosensitive silver halide emulsion layer on the first supporting side of the substrate,
- treating the first silver image on the first supporting side of the substrate to enhance silver conductivity of the first silver image, and
- treating the first silver image with a stabilizing solution comprising at least 0.5 mmol/l and up to and including 50 mmol/l of a heterocyclic thiol, a benzotriazole, a tetraazoindene, or a purine derivative as a stabilizing agent,
- to provide an electrically-conductive silver image on the first supporting side of the substrate.
3 more elements
Dependencies are inferred from the claim text.