Identification of Pigments Used in Decoration of Paper Inscription Related to Ansarin House of Tabriz

Material identification of historical objects has a great importance for better understanding and reproduction process of ancient arts as a basic prior to applying the appropriate conservation method. In this research an inscription related to Ansarin house of Tabriz was studied. It has used in open air space under environmental factors which has caused to structural and visual decays. The aim of the study was identification of pigments and ink of script and ornaments by application chemical spot tests, polarized light microscopy, SEM-EDX and FTIR spectrometry. Results have indicated the use of carbon ink in inscription and ultramarine blue (Lapis lazuli), white lead, red lead (minium), massicot (litharge) with chalk as filler and copper alloys as golden pigment. Corrosion products of copper alloys such as carboxylates, appears as a green layer on golden areas.