![]() ![]() Collective experience of the successes and failures of adhesive treatments carried out over the past forty years and greater interdisciplinary exchange have led increasingly to a more informed debate among conservators.This paper reports on the first of a two‐part project aimed at re‐evaluating the current use of adhesives in the United Kingdom, Europe, and North America. The use of adhesive techniques for the support of fragile textiles is infrequent in most textile conservation studios. ![]() Of the ageing methods tested in this study, thermo-oxidation at 125☌ in dry air for 28–56 days produced silk with properties most like those of historic silk samples. ![]() ![]() Different chemical and physical properties for silk were evaluated using Fourier transform infrared spectroscopy, size exclusion chromatography and tensile tests, which were employed as analytical indicators for comparison between the artificially aged silk and samples from seventeenth-century costumes. Four artificial ageing methods were studied: (1) thermal oxidation in dry air, (2) exposure to different relative humidity (RH), (3) immersion in solutions of varied pH, (4) accelerated ultraviolet (UV) exposure at 50 ± 2☌, 95% RH. This study aimed to find a suitable artificial ageing method for standard silk resulting in a degradation state that simulated that of silk from seventeenth-century costumes. As the historic value of authentic artefacts precludes their use in experimental work, artificially aged standard silk needs to be used as a substitute. The Royal Armoury in Stockholm has conducted a project to experimentally evaluate conservation methods used for historic costumes. ![]()
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