UV-Stabilized photographic elements
AssigneeMonsanto Company
InventorsIval O. Salyer, Arthur M. Usmani
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Abstract
Inclusion of a stabilizer selected from phenyl and naphthyl esters of benzene and naphthalene carboxylic acids and mixtures thereof in an article, e.g. a photographic element, comprising an organic dye or precursor thereof increases stability of the dye against ultraviolet radiation. Particularly good results are achieved when the stabilizer is dispersed in a polymer of relatively high solubility parameter and low crystallinity.
Claims22
A photographic element comprising a photographic organic dye image or precursor thereof and a stabilizer selected from phenyl and naphthyl diesters of benzene and naphthalene dicarboxylic acids and mixtures thereof in amount and concentration sufficient to substantially increase the stability of said dye against ultraviolet radiation.
A method which comprises incorporating in a photographic element containing a photographic organic dye image or precursor thereof a stabilizer selected from phenyl and naphthyl diesters of benzene and naphthalene dicarboxylic acids and mixtures thereof in amount and concentration sufficient to substantially increase the stability of said dye against ultraviolet radiation.
A photographic color print comprising a photographic organic dye image and a stabilizer selected from di(alkylphenyl) isophthalates and terephthalates and mixtures thereof in which said alkyl has from about 4 to about 16 carbon atoms in amount and concentration sufficient to substantially increase the stability of said dye against ultraviolet radiation.
Dependencies are inferred from the claim text.