Olariu, Gheorghina (szerk.): Sesiunea Internaţională de Restaurare - Conservare (Satu Mare, 1997)
Textile
The physico-chemical analyses have revealed the fact that the textile was made of threads of göld or silver metallical ribbon, wrapped on a textile core of natural silk. The textile was produced by braiding up and was then attached, perhaps, on a very thin silk fabric out of which some very small pieces (of about l cm) had been preserved. When brought in the laboratory, the textile was very dry and frail, with very adherent particles of soil, salts, corrosion products of the silver thread, products of skull composition. In fact, the textile was incorporated in these products, making together a rigid mass which would not allow to detach the textile for its thorough study (PHOTOES 1,2). The textile core of the threads was almost absent and what was left was in an advanced state of degradation, the mechanical resistance of the piece being practically taken over by the silver and gold ribbon. After mechanically cleaning the impunities supperficially caught in the piece texture, we hydrated step by step the textile and the very adherent dirt. The hydratation was performed in ten steps, for a month, by applying gause compresses wet with distilled water and glycerine. During the hydrating operation was mechanically taken off part of the dirt whose adherence to the piece substrate had been diminished (PH0T03). In order to keep facilitating the dislocation of the dirt deposits that could not be removed by mechanical cleaning, a wetting bath of water and glycerine was applied. Then the textile fastened to a terylene net was immersed in a Radix saponaria bath going on with cleaning by slight tamponing. Rinsing with distiled water and drying followed. The results of the cleaning operations applied up to know where not satisfactory at all. At this phase by analysing the textile with the stereomagnifier we noticed that the Radix saponaria bath had realised a cleaning of the soil and salt deposits, and of certain products of chemical decomposition. The chemical tests performed evidenced once more the presence of the silver corrosion products (silver sulphides) and of those resulting from skull decomposition, products still embedded in the piece texture making it stiffy and impeding the piece unfolding and its bringing in plane position. In order to remove these products we decided, after numerous tests to use the silver dip under the form applied in the English 252
