Naslov
The interaction of the alkaline solution and the aluminium-oxide film during the printing plate making process

Autori
Mahovic Poljacek, Sanja ; Gojo, Katarina ; Cigula, Tomislav

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

Izvornik
Grid '10, Proceedings / Novaković, Dragoljub - Novi Sad : Faculty of Technical Sciences, Dep. Graphic Engineering and Design, 2010, 201-206

ISBN
978-86-7892-294-7

Skup
5th International Symposium on Graphic Engineering and design

Mjesto i datum
Novi Sad, Srbija, 11.11.2010. - 12.11.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
plate making process; alkaline solution; aluminium oxide; surface free energy; roughness parameters

Sažetak
The non-image areas on the lithographic printing plate are built from roughened and porous aluminium-oxide film. During the plate making process the printing plate is immersed in alkaline solution to dissolve part of the photoactive layer. In this process it is impossible to avoid contact between alkaline solution and aluminium-oxide layer, which is also soluble in this kind of solution. The aim of this paper was to determine the influence of the alkaline solution on the surface properties of the aluminium-oxide film. Measurement of the contact angle was made by applying the defined chemical substances for calculation of surface free energy of aluminium-oxide. Roughness parameters were defined by topographical measurement to determine aluminium-oxide’s surface characteristics. The results showed that alkaline solutions cause significant change of the aluminium-oxide surfaces. This leads to conclusion that determination of developing process parameters must be precisely define in order to achieve printing plates of high quality level.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA