Naslov
Light stability of thermochromic prints

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

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

Izvornik
Advances in Printing and Media Technology, Proceedings of the 37th International Research Conference of iarigai / - , 2010, 147-153

ISBN
978-3-9812704-2-6

Skup
Advances in Printing and Media Technology, 37th International Research Conference of iarigai

Mjesto i datum
Montréal, Kanada, 12.09.2010. - 15.09.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
thermochromic inks; protective lacquers; UV protection; artificial weathering; total colour difference

Sažetak
Leuco dye-based TC inks have short pot life, poor lightfastness, low resistivity to high temperatures and many chemicals. Polymer envelopes are much more stable than the polymer binder in TC ink5. However, lightfastness and chemical stability of TC capsules in the applied vehicle were considered to be the origin of poor stability of TC inks6. The lightfastness of leuco dye-based TC samples might be increased simply by applying a protective layer. For this reason, two transparent lacquers were tested. Special commercial TC ink with intrinsically improved lightfastness (the so-called UV-protected ink) was used without protective layer as a comparison. The effect was evaluated by total colour differences between exposed and unexposed samples and by the total colour contrast between fully coloured and totally discoloured states.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA