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Uticaj temperature okruženja na brzinu promene obojenja termohromnih boja
The influence of ambient temperature on the rate of color change of thermochromic inks
Univerzitet u Novom Sadu, Fakultet tehničkih nauka, Institut/odsek Grafičko inženjerstvo i dizajn, Srbija
email: maricic.katarina@uns.ac.rs
Project: Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije (institucija: Univerzitet u Novom Sadu, Fakultet tehničkih nauka) (MPNTR - 451-03-68/2020-14/200156)
This research has been supported by the Faculty of Technical Sciences, University of Novi Sad, through project "Scientific and Artistic Research Work of Researchers in Teaching and Associate Positions at the Faculty of Technical Sciences, University of Novi Sad" (No. 01-3394/1)
Keywords: termohromne boje; sito štampa; promena boje; pametni tekstilni materijali
Ključne reči: thermochromic inks; screen printing; color change; smart textiles
Abstract
Cilj ovog rada je ispitivanje uticaja temperature okruženja na brzinu promene obojenja termohromnih boja, koje spadaju u grupu pametnih materijala. Korišćena je magenta reverzibilna termohromna boja, koja je štampana manuelnom sito tehnikom štampe na različitim vrstama tekstilnih materijala. Temperatura aktivacije korišćene boje je 31°C. Rezultati eksperimenta ukazuju da postoji veza između temperature okruženja i brzine promene boje, tako da veća temperature okruženja uzrokuje sporiju promenu boje i obrnuto. Razumevanje uticaja temperature okruženja na promenu boje termohromnog otiska važna je za njegovu efikasniju upotrebu.
Sažetak
The aim of this paper is to examine the influence of ambient temperature on the rate of color change of thermochromic inks, which belong to the group of smart materials. Magenta reversible thermochromic ink was used, which was printed by manual screen-printing technique on different types of textile materials. The activation temperature of the used ink is 31°C. The experiment results indicate a relationship between the ambient temperature and the speed of color change, such that higher ambient temperatures cause slower color change and vice versa. Understanding the effect of ambient temperature on the color change of a thermochromic print is important for its more effective use.
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