Degradation phenomena
Chromatic Alterations
Darkening
Reduction or dimming of surface colour due to a decrease in hue (reduction of visible light reflection).COMMENT: COMMENT: Darkening can be the result of deposits such as soot or dirt, the aging of conservation materials, the transformation of an organic binder
Literature
Leone B., Burnstock A., Jones C., Hallebeek P., Boon J.J., Keune K., The deterioration of cadmium sulphide yellow artists' pigments, 2005, in: ICOM-CC 14th triennial meeting The Hague, 12-16 Sept 2005 Preprints vol II James & James, London, pp 803-813Mass J.L., Opila R., Buckley B., Cotte M., Church J., Mehta A., The photodegradation of cadmium yellow paints in Henri Matisse’s Le Bonheur de vivre (1905–1906), 2013, in: Applied physics A vol.111, issue 1, pp 59-68
Kolkena L., Blok V., van den Berg K.J., Megens L., Keune K., van Loon A., A phenomenological atlas of degradation of cadmium yellow oil paint in paintings by Piet Mondrian, 2014, in: ICOM-CC 17th Triennial Conference, Melbourne 2014 , pp 199-210
Keune K., Boon J.J., Boitelle R., Shimadzu Y., Degradation of Emerald green in oil paint and its contribution to the rapid change in colour of the Descente des vaches (1834–1835) painted by Théodore Rousseau, 2013, in: Studies in Conservation Vol. 58 Nr. 3, pp 896-897
Opila R., Church J., Fang F., Mass, J., Surface Analysis Meets Microscopy: Chemical Changes in Matisse Paintings, 2012, in: Microscopy and Microanalysis, 18(S2), pp 1224-1231
Monico L., van der Snickt G. Janssens K., de Nolf W., Miliani C., Dik J., Radepont M., Hendricks E., Geldof M., Cotte M., Degradation Process of Lead Chromate in Paintings by Vincent van Gogh Studied by Means of Synchrotron X-ray Spectromicroscopy and Related Methods. 2. Original Paint Layer Samples, 2011, in: Analytical Chemistry 2011 83 (4), pp 14129–14133
Monico L., Janssens K., Hendriks E., Vanmeert F., Van der Snickt G., Evidence for Degradation of the Chrome Yellows in Van Gogh’s Sunflowers: A Study Using Noninvasive In Situ Methods and Synchrotron-Radiation-Based X-ray Techniques, 2015, in: Angew Chemistry 2015 vol. 127 (47), pp 94-103
Neider E., Hendriks E., Burnstock A., Colour change in sample reconstructions of Vincent van Gogh's grounds due to wax resin linings, 2011, in: Studies in Conservation Vol. 56 Nr. 2, pp 4742-4750
Keune K., Boon J.J., Analytical Imaging Studies Clarifying the Process of the Darkening of Vermilion in Paintings, 2005, in: Analytical Chemisty 2005 vol. 77 (15),
Berns R.S., Byrns S., Casadio F., Fiedler I., Gallagher C., Rejuvenating the Color Palette of Georges Seurat’s A Sunday on La Grande Jatte—1884: A Simulation, 2006, in: Colour Research and Application vol. 31 iss. 4, pp 278-293
Monico L., Janssens K., Hendriks E., Vanmeert F., Van der Snickt G., Cotte M., Falkenberg G., Brunetti B.G., Miliani C., Evidence for Degradation of the Chrome Yellows in Van Gogh’s Sunflowers: A Study Using Noninvasive In Situ Methods and Synchrotron‐Radiation‐Based X‐ray Techniques, 2015, in: Angewante Chemie vol.54 iss. 47, pp13923-13927
Monico L., Janssens K., Alfeld M., Cotte M., Vanmeert F., Ryan C.G., Falkenberg G., Howard D.L., Brunetti B.G., Miliani C., Full spectral XANES imaging using the Maia detector array as a new tool for the study of the alteration process of chrome yellow pigments in paintings by Vincent van Gogh., 2015, in: Journal of Analytical Atomic Spectrometry vol. 30, pp 613-626
Hendriks E., Brokerhof A.W., van den Meiracker K., Valuing Van Gogh’s colours: From the past to the future, 2017, in: Postprints of the ICOM-CC 18th Triennial Conference, Copenhagen, 2017, paper 1306
https://www.icom-cc-publications-online.org/PublicationDetail.aspx?cid=5b1a8893-aa2a-489f-80f0-38b1c125a99a
Shimadzu Y. van den Berg K.J., On metal soap colour and transparency changes in a 19C painting by Millais, 2006, in: Reporting the highlights of the De Mayerne programme NWO, The Hague, November 2006, pp 43-52
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.454.8324&rep=rep1&type=pdf#page=21
Watson M., Burnstock A., An evaluation of colour change on nineteenth Century grounds on canvas upon varnishing and varnish removal, 2010, in: New Insights into the cleaning of paintings. Proceedings from the cleaning 2010 international conference Universidad Politécnica de Valencia and Museum Conservation Institute. Smithsonian Institution Scholarly Press, Washington DC, pp 77-84
Kubik M.E., Preserving the painted image: the art and science of Conservation, 2010, in: Colour: Design and Creativity vol.5 (2010) issue 5., pp 1-8
http://jaic.jsitservices.co.uk/index.php/JAIC/article/view/12/11