Ramanova spektroskopija u zaštiti od krivotvorenja

master's thesis

• Author: Marija Cindrić
• Mentor: Igor Zjakić (mentor)
• Committee member: Ivana Žiljak-Stanimirović (član povjerenstva)
• Committee member: Igor Zjakić (član povjerenstva)
• Committee member: Nikola Mrvac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2016-9-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Diplomski rad je proveden u svrhu istraživanja mogućnosti korištenja Ramanove spektroskopije kao nedestruktivne tehnike analiziranja krivotvorenih novčanica. Glavni cilj istraživanja je testiranjem uzoraka Ramanovom spektroskopijom i analiziranjem rezultata ustanoviti je li Ramanova spektroskopija odgovarajuća metoda za usporedbu različitih boja (cijan, magenta, žuta i karbon), različitih proizvođača (u ovom radu koristilo se šest različitih proizvođača ofsetnih boja) na različitim podlogama (papir i staklo). Ne samo u Republici Hrvatskoj već općenito u svijetu, ova metoda je u velikoj mjeri zanemarena što se tiče analiziranja krivotvorina. Uzorci otisnuti ofsetnim bojama različitih proizvođača na istoj papirnoj podlozi su testirani Ramanovom mikro-spektroskopijom koristeći Argon laser, valne duljine 514.5 nm. Jednostavnom usporedbom i kombinacijom podloga, boja i proizvođača možemo doći do zaključka da svaka boja, svaka podloga i svaki proizvođač ima jedinstveni Ramanov spektar. Rezultati pokazuju da se Ramanova spektroskopija može koristiti kao metoda analiziranja otisnutih uzoraka (krivotvorina) kao što su novčanice i dokumenti u svrhu dokazivanja originalnosti i izvora, te da je Ramanova spektroskopija tehnika analiziranja koja je brza, nedestruktivna, daje snažne i neosporive rezultate.

Abstract (english)

Graduate work was carried out in order to research the possibility of using Raman spectroscopy as a non-destructive analysis of counterfeit banknotes. The main objective of the research is testing samples with Raman spectroscopy and analyzing the results in order to determine whether the Raman spectroscopy is suitable method to compare different colors (cyan, magenta, yellow, and carbon), various manufacturers (in this research we used six different manufacturers of offset colors) on different surfaces (paper and glass). Not only in Croatia but also general in the world, this method is largely ignored when it comes to analyzing forgery. Samples printed with offset colors from different manufacturers on the same backing paper were tested by Raman micro-spectroscopy using Argon laser, with the wavelength of 514.5 nm. By simply comparing the results of different background, color and manufacturers we can come to the conclusion that every color, every background and every manufacturer has a unique Raman spectrum. The results show that Raman spectroscopy can be used as a method of analyzing the printed patterns (forgery) such as banknotes and documents in order to prove the originality and origin, and that the Raman spectroscopy technique of analysis is rapid, non-destructive metod which gives strong and indisputable results.

• Keywords: Ramanova spektroskopija; nedestruktivna analiza; krivotvorenje; novčanice; ofsetni tisak
• Keywords (english): Raman spectroscopy; non-destructive analysis; counterfeiting; banknotes; offset
• Language: croatian
• URN:NBN: urn:nbn:hr:216:633342
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-04-18 21:30:13