The demand for image permanence properties has increased with the development of ink-jet applications. Depending on the ink composition, the nature of the colorants (pigments or dyes) and the media properties, very different results can be obtained. The effect of the ageing experiments are frequently assessed in terms of color differences (ΔE) and gloss variations.The objective of this paper was to evaluate, in addition to these measurements, other techniques of analyses, such as UV-visible, IR and Raman spectroscopies.Two different ink-jet papers have been tested with two ink-jet inks (pigment- and dye-based inks) before and after UV-light expositions.Not only the analytical techniques used allowed to evaluate the extent of the permanence properties of the samples, but they also made possible to interpret with a better accuracy the physico-chemical origin and the mechanism of the possible degradation.
Anne Blayo, Cyril Murie, Bernard Pineaux, "Contribution of Spectroscopic Techniques to the Analysis of Permanence Properties of Ink-Jet Printed Materials" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP19), 2003, pp 434 - 437, https://doi.org/10.2352/ISSN.2169-4451.2003.19.1.art00104_1