Distinction of original and forged lithographs by means of thermogravimetry and Raman spectroscopy

摘要: Thermal analysis has been used to study the composition of paper and paper-like materials for some decades. The application these techniques permits distinguish between original which was by artists possible forgeries. Quite often, however, identification differences demands simultaneous several other techniques. present investigation includes Asiatic wood-prints from China Japan, lithographs European artists, such as Pablo Picasso, Salvador Dali, Marc Chagall. Utamaro (1753–1806) is one most celebrated in history Japanese woodblock print. He became famous painters ‘Ukiyo-e’ (Ukiyo-e means transitory world). In Utamaro's pictures were also produced. are found kind paper: Mitsumata paper, while Chinese printed on Bamboo mixed with silk fibers. Hu-ju-zong (Nanking, 1619) a group created book ‘Ten Studio’ contains prints visual aids young artists. A reprint appeared 1717. Later, bootleg this Japan (1817). differentiation thermogravimetric papers. Statistic evaluations Europe show that more than 1 000 copies Chagall exist. Thermoanalytical measurements allow distinction artifacts bootlegs. Raman spectroscopy gives an additional possibility applied color pigments.