Naslov
Ink Trapping in Hybrid Printing Technology

Autori
Miletić, Martina ; Jamnicki, Sonja ; Bertić, Irena

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

Izvornik
Proceedings of the 2nd International Student Conference "Printing Future Days 2007" / Institute for Print and Media Technology at Chemnitz University of Technology - Berlin : VWF Verlag fur Wissenschaft und Forschung GmbH, 2007, 112-117

ISBN
978-3-89700-101-5

Skup
2nd International Student Conference on Print and Media Technology "Printing Future Days 2007"

Mjesto i datum
Chemnitz, Njemačka, 05.11.2007. - 08.11.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Ink Trapping; Hybrid Printing; Flexo Ink; Offset Ink

Sažetak
In this paper the authors have studied the prints made with combination of flexo and offset inks used in hybrid printing technology. A good image reproduction is determined by appropriate trapping. Poor trapping means that superimposed inks are improperly laid down on the previously printed colours, causing poor colour balance and poor overall appearance. Hybrid press systems use combination of different printing units, which makes it possible to implement an offset unit in a flexo line. Each technology has its advantages which, when connected in one production line, can improve the quality of prints and provide the added value of graphic product. Flexo printing includes low viscosity inks and offset uses paste, viscous inks. According to that rheology and drying characteristics are different for each type of ink. The aim of this study was to investigate how two different types of inks interact when printed one over the other in different conditions. The prints for the evaluation of trapping were obtained by applying the flexo ink onto the substrate and then the offset ink onto the layer of flexo ink by means of wet-on-wet overprinting. The flexo ink was applied with the appropriate “ K Hand Coater” device and the offset ink was applied with the IGT A2 printability tester, simulating offset printing. Two kinds of paper, offset paper and liner paper, were used as substrates. Trapping of offset ink over the flexo ink was evaluated by its effect onto the final L*a*b* properties of the samples obtained.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

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