“…Natural raw materials have been employed for paintings since prehistoric times, when the Chinese people, using the sap of the indigenous lacquer tree, introduced the art of lacquering. 28 Gutenberg's inks were based on carbon black and linseed oil. But the coatings and inks industries were born at the beginning of the 19th century, when natural resins, such as shellac, rosin and amber, were largely substituted by synthetic resins, 29 and when well performing and cost efficient solvents like benzene, toluene, nitrobenzene, o-dichlorobenzene, dichloroethane, Tetralin 1 and Dekalin 1 , based on crude and naphtha, and acetylene-, chloro-and nitro-chemistry became available.…”