The light fastness behavior of several classes of colorants was investigated on different ink-jet media. Their sensitivity to ink dilution and to environmental humidity is demonstrated. Cross-coupling effects are found for certain combinations of colorants. Most observations can be explained by a dye-aggregation mechanism that is more or less affected by the experimental parameters. A specific layer design is shown to improve light stability for certain dyes.
Mario Fryberg, Rita Hofmann, "Influence of Dye Structure on Permanence" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP16), 2000, pp 95 - 98, https://doi.org/10.2352/ISSN.2169-4451.2000.16.1.art00023_1