Recep KARADAG
(Marmara University, Faculty of Fine Arts, Laboratory for Natural Dyeing and Cultural Heritage Preservation and Natural Dyes Laboratory, Istanbul, Turkey)
Keywords: HPLC-DAD, SEM-EDX, pigments, dyes, textiles
Abstract:
In this study, historical and archeological textiles, the metal thread, dyestuff and technical analysis were determined by micro and nondestructive analysis methods. Historical and archeological samples were provided from many museum collection and excavation area. Optical microscopy for the technical analysis, CIEL*a*b* spectrophotometer/colorimeter for the color measurements, HPLC-PAD for the dyestuff analysis and SEM-EDX for the metal thread analysis were performed.
Obtained results dictate decisions on cleaning, conservation and restoration steps. The most important part of characterization is chemical analysis of originally applied materials, since this enables understanding of the nature of chemical and physical degradation and helps to determine the proper cleaning methods. One of the most useful procedures for fast and simple determination of specific metals of interest is scanning electron microscopy equipped with an EDX detector (FESEM-EDX). This is a simple method which provides information on chemical composition of sample surfaces and chemical analysis of metals threads.