6533b854fe1ef96bd12af47e

RESEARCH PRODUCT

Characterization of foxing stains in early twentieth century photographic and paper materials

Aurora ModicaDorotea FontanaLuigi TranchinaMaria Francesca AlberghinaMarco Di BellaMaurizio BrunoMaria Brai

subject

PaperFoxingSurface Propertiesmedia_common.quotation_subjectXRFMineralogyPlant Science01 natural sciencesBiochemistryAnalytical ChemistryPhotographyColoring AgentsColoring AgentSpectrum Analysimedia_commonElemental compositionLIBS010405 organic chemistrySpectrum AnalysisFoxingOrganic ChemistrySpectrometry X-Ray EmissionSettore CHIM/06 - Chimica OrganicaArtHistory 20th CenturyArchaeologySettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)0104 chemical sciencesCharacterization (materials science)010404 medicinal & biomolecular chemistrySEMfungi

description

The subject of this present work is a group of nine historical pictures shot in Palermo by the Sicilian photographer E. Interguglielmi in 1912. They are nine matte-collodion prints mounted on the original cardboard supports and all of them show foxing stains affecting the paper surface. In order to characterise the chemical composition of the supports and investigate foxing spots, non-destructive and micro-destructive analysis were carried out. X-rays fluorescence (XRF) analysis was used to characterise the elemental composition of all the mounting boards, allowing a comparison between the foxing spots and non-affected areas. Laser-Induced Breakdown Spectroscopy was used to investigate the presence of lower atomic number elements, not detectable by XRF, while SEM imaging allowed the investigation of surface appearance and nature of original paper samples from the cardboards.

https://doi.org/10.1080/14786419.2016.1180600