Naslov
Differences in Physical-Chemical Properties of the Nonprinting Areas for Conventional and CtP Process

Autori
Žitinski Elias, Paula Yadranka ; Tomašegović, Tamara ; Cigula, Tomislav

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

Izvornik
Proceedings of the 3rd International Student Conference "Printing Future Days 2009" / - Berlin : VWF Verlag fuer Wissenschaft und Forschung GmbH, 2009, 139-143

ISBN
978-3-89700-108-4

Skup
3rd International Student Conference on Print and Media Technology

Mjesto i datum
Chemnitz, Njemačka, 02.01.2009. - 05.01.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Plate making process; conventional process; CtP process; developing time; contact angle

Sažetak
The difference between printing and nonprinting areas in lithography is achieved through opposite physical-chemical properties. The printing areas attract hydrophobic substances – printing inks. The nonprinting areas, made of aluminum-oxide, attract hydrophilic substances – the fountain solution. In the printing process, the nonprinting areas are first covered with fountain solution, which makes them unable to adsorb printing ink. The amount and stability of the fountain solution adsorption on those areas has direct influence on the quality level of the reproduction. The aim of this paper was to determine how developing time in conventional and CtP plate printing processes influences the physical- chemical properties of the nonprinting areas. Therefore, samples of conventional and CtP printing plate were lightened in optimal time and then developed in various times. The contact angle between wetting solution and nonprinting areas was measured. Results have shown differences in physical-chemical properties between those two types of plates.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA