| Abstract [eng] |
In preserving cultural heritage, special attention must be paid to the book – an object that has changed throughout the historical period, and the structure is one of the most complexes. Restorers have to restore books in which red paint is particularly common: rubrics, miniatures, drawings, etc., and over time, various destructions are observed in them, the paint becomes fluid during washing. Therefore, the aim of this dissertation was six historical red pigments (natural cinnabar (HgS), red lead (Pb3O4), realgar (As4S4), Andalusian red ocher (Fe2O3), red bolus (Fe2O3 ∙ xSiO2 ∙ yAl2O3), hematite (Fe2O3), and three different binding media (gum Arabic, parchment glue, fish glue) creation of a short database and its application to the manuscripts of the time of the Grand Duchy of Lithuania, stored in the Wroblewski Library of the Lithuanian Academy of Sciences. The paper presents SEM/EDX, FTIR, XRD, and thermal analysis studies of single materials and eighteen different red paint compositions based on old recipes. Practical application of the database for the identification of red paint and binding media in old books, and capillary washing with non-woven fabric Paraprint OL60 for the water-sensitive objects. For the first time, a short red paint database was applied to investigate and characterize the manuscripts from the time of the Grand Duchy of Lithuania. It was found, that the cinnabar pigment was predominated during the studied period, however, the red lead was also detected. Identified compounds that affect the colour change of the paint, destruction of binding media. The information gathered will allow restorers to choose the most suitable restoration materials and methods. |
