Next Article in Journal
Polydopamine-Coated Natural Rubber Sponge for Highly Efficient Vapor Generation
Next Article in Special Issue
Kraft Lignin/Tannin as a Potential Accelerator of Antioxidant and Antibacterial Properties in an Active Thermoplastic Polyester-Based Multifunctional Material
Previous Article in Journal
Biocompatible Films of Calcium Alginate Inactivate Enveloped Viruses Such as SARS-CoV-2
Previous Article in Special Issue
Evaluation of Biodegradabilities of Biosynthetic Polyhydroxyalkanoates in Thailand Seawater and Toxicity Assessment of Environmental Safety Levels
Article

Improvement in Thermochromic Offset Print UV Stability by Applying PCL Nanocomposite Coatings

University of Zagreb Faculty of Graphic Arts, Getaldićeva 2, 10000 Zagreb, Croatia
*
Authors to whom correspondence should be addressed.
Academic Editors: José Miguel Ferri, Vicent Fombuena Borràs and Miguel Fernando Aldás Carrasco
Polymers 2022, 14(7), 1484; https://doi.org/10.3390/polym14071484
Received: 18 March 2022 / Revised: 1 April 2022 / Accepted: 3 April 2022 / Published: 6 April 2022
(This article belongs to the Special Issue Advances in Biocompatible and Biodegradable Polymers)
Thermochromic (TC) printing inks change their colouration as a response to a change in temperature. This ability renders them attractive for various applications such as smart packaging, security printing, and marketing, but their application is limited due to their low UV stability, i.e., loss of their thermochromic effect when exposed to UV radiation. In order to improve the UV stability of TC prints, one offset TC printing ink was printed and coated with nanomodified polycaprolactone (PCL) coating. The coating was prepared with the incorporation of 1%, 2%, and 3% mass ratios of ZnO and TiO2 nanoparticles in the PCL matrix. The prepared nanocomposite coatings were applied onto the TC print and exposed to UV radiation; afterwards, they were characterized by the colour properties of prints, SEM microscopy, FTIR, and fluorescence spectroscopy. SEM microscopy, FTIR, and fluorescence spectroscopy showed higher rates of polymer degradation, and the results of colour stability indicated that 3% TiO2 in PCL matrix gave the best UV stability and protection of TC prints. View Full-Text
Keywords: thermochromic printing inks; UV stability; polycaprolactone; nanoparticles; TiO2; ZnO thermochromic printing inks; UV stability; polycaprolactone; nanoparticles; TiO2; ZnO
Show Figures

Figure 1

MDPI and ACS Style

Vukoje, M.; Kulčar, R.; Itrić Ivanda, K.; Bota, J.; Cigula, T. Improvement in Thermochromic Offset Print UV Stability by Applying PCL Nanocomposite Coatings. Polymers 2022, 14, 1484. https://doi.org/10.3390/polym14071484

AMA Style

Vukoje M, Kulčar R, Itrić Ivanda K, Bota J, Cigula T. Improvement in Thermochromic Offset Print UV Stability by Applying PCL Nanocomposite Coatings. Polymers. 2022; 14(7):1484. https://doi.org/10.3390/polym14071484

Chicago/Turabian Style

Vukoje, Marina, Rahela Kulčar, Katarina Itrić Ivanda, Josip Bota, and Tomislav Cigula. 2022. "Improvement in Thermochromic Offset Print UV Stability by Applying PCL Nanocomposite Coatings" Polymers 14, no. 7: 1484. https://doi.org/10.3390/polym14071484

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop