Stability studies and degradation mechanisms of thermochromic offset prints (CROSBI ID 678311)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vukoje, Marina ; Kulčar, Rahela ; Krajnović, Ivana ; Rožić, Mirela
engleski
Stability studies and degradation mechanisms of thermochromic offset prints
Thermochromic printing inks are nowdays used in a wide range of different applications, from packaging, commercial printing, protected documents, ceramics to textiles. Their poor stability when exposed to UV radiation limits their stability in external conditions. The stability of polymeric products towards oxidation and hydrolysis is one of the important factors. In this study, one thermochromic offset printing ink was printed on two different papers (wood free coated and wood free uncoated). The prints were exposed to accelerated aging and biodegradation test in order to understand the mechanisms of prints degradation in different environments. All the samples were evaluated for changes by FT-IR spectroscopy and colorimetric properties. FTIR spectroscopy showed higer changes and degradation during biodegradation test (mostly in the case of uncoated paper), implying higer rate of ink binder hydrolysis and oxidation compared to accelerated aeging test. Colorimetric measurements showed higer stability of thermochromic print on uncoated paper during UV degradation.
thermochromic offset ink, coated paper, uncoated paper, accelerated aging, biodegradation, FTIR, colorimetric properties
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Podaci o prilogu
312-321.
2019.
objavljeno
Podaci o matičnoj publikaciji
20th International Conference on Materials MATRIB 2019
Šolić, Sanja ; Schauperl, Zdravko ; Pugar, Daniel
Varaždin: Hrvatsko društvo za materijale i tribologiju (HDMT)
2459-5608
Podaci o skupu
20th International Conference on Materials (MATRIB 2019)
predavanje
29.06.2019-29.06.2019
Vela Luka, Hrvatska