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Bibliographic record number: 491391

Journal

Authors: Mahovic Poljacek, Sanja; Gojo, Katarina; Cigula, Tomislav
Title: The interaction of the alkaline solution and the aluminium-oxide film during the printing plate making process
Source: Grid '10, Proceedings / Novaković, Dragoljub (ed). - Novi Sad : Faculty of Technical Sciences, Dep. Graphic Engineering and Design , 2010. 201-206 (ISBN: 978-86-7892-294-7).
Meeting: 5th International Symposium on Graphic Engineering and design
Location and date: Novi Sad, Srbija, 11-12. 11. 2010.
Keywords: plate making process; alkaline solution; aluminium oxide; surface free energy; roughness parameters
Abstract:
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.
Type of meeting: Predavanje
Type of presentation in a journal: Other
Type of peer-review: International peer-review
Project / theme: 128-1201785-2228, 128-1281957-1958
Original language: ENG
Category: Znanstveni
Research fields:
Graphic technology
Contrib. to CROSBI by: mgojo@grf.hr (mgojo@grf.hr), 16. Stu. 2010. u 10:40 sati



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