Centre de recherche sur la conservation & Centre national du cinéma et de l’image animée (France)
This paper presents the results of collaboration between two institutions – the Centre de recherche sur la conservation and the Centre national du cinéma et de l’image animée – aiming to better understand and to mitigate molds development on movies films in the film vaults. This encompasses first a microbiological study in order to assess the types of molds on the films and their provenance. Then different cleaning products either solvents (Biosane T 218 TB, Biosolv2, Bioprint, Arcane CNC 3, Fisolve E 200, Kodika) or biocide (Fonginet A20) were tested to evaluate their effectiveness and any detrimental effect on films. Those chemicals were submitted to the Photo Activity Test. Their effects on the films (B&W or colour) were evaluated, either for films on polyester or CTA base, by measuring physical parameters before, after treatment and after ageing. Lastly a monitoring of climatic conditions within film cans has been performed in the storage room and in test chambers in order to estimate the impact of external climatic conditions on the relative humidity within a film can and the role play by the film as a humidity buffer. Eventually the moisture absorption of a few movie films in good and bad conservation condition was measured.
Bertrand Lavédrine is professor at the National museum of natural history and director of the Centre de Recherche sur la Conservation (CRC), a national research institute. The CRC gathers 50 conservation scientists organized in three research teams focussing on archival collections, historical monuments and musical instruments preservation. He has authored papers or books on photograph preservation and received the Kraszna-Krauz Photography Book award for his book “A Guide to the Preventive Conservation of Photographs Collections”. He his teaching collection preservation at the university of Pantheon-Sorbonne and at the National Institute for Cultural Heritage. He is coordinating international research project and he is involved in international initiatives such as the Middle East Photograph Preservation Initiative, the Hermitage initiative or the ICCROM training programmes (COLLASIA or SOIMA).