Naslov
Colorimetric properties of UV-thermochromic inks

Autori
Kulčar, Rahela ; Friškovec, Mojca ; Klanjšek Gunde, Marta ; Knešaurek, Nina ;

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
13th International Conference on printing, design and graphic communications, Blaž Baromić, Proceedings / Prof. PhD Zdenka Bolanča - Zagreb : Zagreb: Faculty of Graphic Arts ; Ljubljana: Faculty of Natural Science and Engineering ; Senj: Matica hrvatska, Ogranak ; Ljubljana: Pulp and Paper Institut, 2009, 89-93

ISBN
978-953-7644-02-4

Skup
13th International Conference on printing, design and graphic communications, Blaž Baromić,

Mjesto i datum
Senj, Hrvatska, 30.09.2009. - 02.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
thermochromic inks; leucodyes; UV-curing; screen printing; colorimetric properties

Sažetak
The focus of this paper is on thermochromic inks that change colour in a controlled way when the temperature is varied. We will analyse here colorimetric properties of the screen-printed UV-curing leucodye thermochromic inks in red, blue and black shades with activation temperature of 31 °C. The inks will be screen printed on a gloss paper and on an aluminium board using one, two and three layers of colour. The samples were measured by spectrophotometer at three different temperatures: low, room and high. To see how the thickness of colour layers and UV-curing parameters influence the colorimetric properties, the reflectance spectra and temperature dependent CIELAB colour values will be shown. Also, the colour differences between the ink in different states together with colourless state and paper substrate will be calculated.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA