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Article

Identifying a Unique Communication Mechanism of Thermochromic Liquid Crystal Printing Ink

1
Faculty of Graphic Arts, University of Zagreb, Getaldićeva 2, 10000 Zagreb, Croatia
2
National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
*
Authors to whom correspondence should be addressed.
Academic Editors: Kohki Takatoh, Jun Xu and Akihiko Mochizuki
Crystals 2021, 11(8), 876; https://doi.org/10.3390/cryst11080876
Received: 13 July 2021 / Revised: 27 July 2021 / Accepted: 27 July 2021 / Published: 28 July 2021
(This article belongs to the Special Issue Liquid Crystal Optics for Applications)
Thermochromic liquid crystal materials are commonly used in printing inks, opening up a wide range of possible applications. In order to ensure and control the most accurate application, the occurrence of the so-called colour play effect, i.e., the appearance of iridescent (rainbow) colours as a function of temperature, must be determined precisely. For this purpose, the temperature-dependent reflection of a sample must be measured using a spectrometer with an integrating sphere. The same values should be obtained for each sample containing the same thermochromic liquid crystalline material, irrespective of the spectrometer used, integrating sphere, layer thickness and the surface properties of the substrate. To describe this intrinsic property of the thermochromic liquid crystal material, the term communication mechanism might be considered. The research has shown how this mechanism is obtained experimentally. View Full-Text
Keywords: thermochromic liquid crystal inks; temperature; colour play effect; communication mechanism thermochromic liquid crystal inks; temperature; colour play effect; communication mechanism
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MDPI and ACS Style

Strižić Jakovljević, M.; Lozo, B.; Gunde, M.K. Identifying a Unique Communication Mechanism of Thermochromic Liquid Crystal Printing Ink. Crystals 2021, 11, 876. https://doi.org/10.3390/cryst11080876

AMA Style

Strižić Jakovljević M, Lozo B, Gunde MK. Identifying a Unique Communication Mechanism of Thermochromic Liquid Crystal Printing Ink. Crystals. 2021; 11(8):876. https://doi.org/10.3390/cryst11080876

Chicago/Turabian Style

Strižić Jakovljević, Maja, Branka Lozo, and Marta K. Gunde. 2021. "Identifying a Unique Communication Mechanism of Thermochromic Liquid Crystal Printing Ink" Crystals 11, no. 8: 876. https://doi.org/10.3390/cryst11080876

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