Study on the Gel Cleaning System for Removal of Poly (vinyl acetate) Fixative of the Mural Paintings of the Payathonzu Temple in Bagan, Myanmar (I) - Focusing on Properties and Removability of Gel Cleaners -
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In the past, PVAc [poly(vinyl acetate)] was used as a fixative for the conservation of the murals in the murals of the Payathonzu temple located in Bagan, Myanmar. In this study, attention was paid to gel cleaning as a method for stably removing such PVAc fixatives. Based on the recent research trend related to the cleaning of murals in Bagan ruins, 3 types of gelling agents (Nevek®, Laponite®RD, Carbopol®980) and 2 types of organic solvents (Acetone, Dimethyl carbonate) were selected. Six types of gel cleaners were prepared by mixing gelling agents and organic solvents, and the properties and fixative removability of these cleaners were compared. As a result of confirming the properties of the prepared gel cleaners, the pH of the cleaners was all in the weak acidic to weakly alkaline range, which was a stable condition for mural application. Also, there was no difference in the viscosity of the cleaners depending on the type of solvent, but there was a difference depending on the type of gelling agent used. Regarding the weight loss ratio of PVAc, which is an indicator of removability, the exposure conditions of the gel cleaners, the boiling point of the solvent used, and the viscosity of the gelling agent acted as factors affecting. As a result of comparing the removability of gel cleaners, it was confirmed that the solvent’s fixative solubility, the volatility of the solvent itself, and the solvent release control properties of the gelling agent had a great effect on the removability of the gel cleaners. In Part 2, the stability and the running applicability of the gel cleaners will be investigated by making mockup samples reflecting the properties of the materials and techniques used to produce the mural paintings in the Payathonzu Temple.
Abstract
In the past, PVAc [poly(vinyl acetate)] was used as a fixative for the conservation of the murals in the murals of the Payathonzu temple located in Bagan, Myanmar. In this study, attention was paid to gel cleaning as a method for stably removing such PVAc fixatives. Based on the recent research trend related to the cleaning of murals in Bagan ruins, 3 types of gelling agents (Nevek®, Laponite®RD, Carbopol®980) and 2 types of organic solvents (Acetone, Dimethyl carbonate) were selected. Six types of gel cleaners were prepared by mixing gelling agents and organic solvents, and the properties and fixative removability of these cleaners were compared. As a result of confirming the properties of the prepared gel cleaners, the pH of the cleaners was all in the weak acidic to weakly alkaline range, which was a stable condition for mural application. Also, there was no difference in the viscosity of the cleaners depending on the type of solvent, but there was a difference depending on the type of gelling agent used. Regarding the weight loss ratio of PVAc, which is an indicator of removability, the exposure conditions of the gel cleaners, the boiling point of the solvent used, and the viscosity of the gelling agent acted as factors affecting. As a result of comparing the removability of gel cleaners, it was confirmed that the solvent’s fixative solubility, the volatility of the solvent itself, and the solvent release control properties of the gelling agent had a great effect on the removability of the gel cleaners. In Part 2, the stability and the running applicability of the gel cleaners will be investigated by making mockup samples reflecting the properties of the materials and techniques used to produce the mural paintings in the Payathonzu Temple.
참고문헌 (13)
- A study on the current state of temple murals of Bagan ruins and methods of conserving mural paintings of Payathonzu temple, "Korea Culture Heritage Foundation", 259~ (2018)
- Korea Culture Heritage Foundation, "Scientific analysis of materials and making conservation manual for Bagan murals", 167~ (2019)
- Techniques and methodology of mural painting conservation, "Lee, H.S.", Korea National University of Cultural Heritage, ~ (2015)
- 이경민, "Experimental Study on Poultices Applying to Remove Fixative (Paraloid B72) on Earthen Mural Painting", 보존과학회지, 34(6), pp.569~580 (2018), 한국문화재보존과학회[DOI]
- Lee, L. M., "Investigations into the use of Laponite as a poulticing material in ceramics conservation", V & A Conservation Journal, 22, pp.9~11 (1997)
- Ling, D., "Laponite poulticing", Conservation News, 46, pp.10~11 (1991)
- Lunsford, R.L., "Recommendations on the protection and conservation of mural paintings and architectural decorative works of 2162 Ananda-ok-kyaung at Pagán", UNESCO, ~ (2017)
- Monger, G., "Treatment of a Roman child’s lead coffin liner", Conservation News, 77, pp.36~37 (2002)
- Pianorsi, M.D., "Synthesis and application of novel materials for cleaning and protection of historical documents", Ph.D., pp.2016
- Stulik, D., "Solvent Gels for the cleaning of works of art: the residue question" (2004), The Getty Conservation Institute
- Volpi, F., "Green strategies for the cleaning of works of art: Setting up of an analytical protocol for the evaluation of cleaning", Ph.D., pp.2017
- Warda, J., "Analysis of agarose, carbopol, and laponite Gel poultices in paper conservation", Journal of the American Institute for Conservation, 46(3), pp.276~279 (2007)
- Lokahteikpan Wall Painting Project, "Yoshifumi, M.", Tokyo National Research Institute for Cultural Properties, ~ (2019)