Abstract
This work investigates the use of Raman spectroscopy as a non-destructive tool for analysing inkjet and laser printed counterfeits. The primary goal of the study was to determine if Raman spectroscopy is an acceptable tool for demonstrating the link between various specimens of counterfeits suspected of being printed with the same toner on the same machine. Specimens of several kinds of toners printed on various types of paper are studied using a Raman spectroscopy apparatus with an excitation line at 514.5 nm. Cyan, magenta, yellow, and black toners are examined independently for each specimen. The Raman spectra of the cyan and yellow toners were the most distinguishable. The findings reveal that Raman spectroscopy may be used effectively to analyse colour toner printed document counterfeiting, such as banknotes and papers, in order to create linkages between more or less varied specimens of counterfeits by evaluating the characteristics of a colour toner.
Published Version
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