Photographic processing solution composition
AssigneeEastman Kodak Company
InventorPeter J. Twist
Life of this patent
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Abstract
Photographic elements, especially color papers, can be processed with developer, redox amplification or bleaching solutions that contain hydrogen peroxide or other oxidants. These solutions include a dissolved compound that has a hydrophobic hydrocarbon group and an additional group that enables the compound to adsorb to silver or stainless steel. The dissolved compound inhibits the catalytic effect of the metal on decomposition of the hydrogen peroxide so the processing solutions are more stable.
Claims18
A photographic processing solution comprising a redox amplification oxidant or a compound which provides a redox amplification oxidant, and dissolved in said solution, a water-insoluble compound having a hydrophobic hydrocarbon group and an additional group which adsorbs to silver or stainless steel, said solution further comprising a nonionic surfactant to solubilize said water-insoluble compound.
Dependencies are inferred from the claim text.