Analiza kvalitete bezvodnog ofsetnog tiska

Zavada, Jelena (2010) Analiza kvalitete bezvodnog ofsetnog tiska. Diploma work - Pre-Bologna programme. Grafički fakultet. [Mentor: Zjakić, Igor].

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Abstract

Cilj istraživanja u ovom diplomskom rada bio je analizirati kvalitetu otisaka dobivenih tehnikom bezvodnog ofsetnog tiska koja je u usporedi s tehnikom konvencionalnog ofseta još uvijek nedovoljno zastupljena na našim prostorima. S obzirom na izostanak otopine za vlaženje tehnika je ekološki prihvatljiva, a deformacije rasterskih elemenata znatno su manje što rezultira oštrinom otiska i manjim prirastom RTV. Ako tome još dodamo prednosti DI tehnologije, postavlja se pitanje zašto ova suvremena tehnika ne nalazi veću primjenu u grafičkoj proizvodnji. Kompletan teorijski dio temelji se na već postojećim istraživanjima čiji je zaključak s obzirom na tehniku klasičnog ofsetnog tiska u principu uvijek isti: visoka kvaliteta uz više prednosti nego nedostataka. Međutim, eksperimentalni dio pokazat će da, kao i u svakoj tehnici tiska, kvaliteta ovisi o jako puno faktora pa tako bez primjerice pravilno podešenog stroja, kvalitetnog repromaterijala (tiskovne podloge, tiskovne forme, ofsetne gume ili tiskarske boje) te iskusnog tiskara zasigurno nije moguće postići kvalitetan otisak. Analiza kvaliteta otisaka u ovom istraživanja temelji se na sljedećim pokazateljima kvalitete: gustoći obojenja, prirastu RTV, rasponu gustoće obojenja kroz nakladu te sivom balansu.

Item Type:	Diploma work - Pre-Bologna programme
Mentor name:	Zjakić, Igor
Defence date:	February 2010
Abstract in english:	The aim of the research in this graduate work was to analyze the quality of prints obtained with waterless offset printing technique which is compared with the conventional offset technique still under‐represented in our country. Given the absence of dampening solution, technique is environmentally friendly, and the strain of raster elements are significantly less, resulting in print sharpness and smaller dot gain. If we add more the benefits of DI technology, the question is why this modern technology is not more represented in graphic production. Complete theoretical part is based on existing research which conclusions compared with classical offset printing technique in principle are always the same: high quality with more advantages than disadvantages. However, the experimental part will show that, like any printing technique, quality depends on so many factors. Considering that, without proper adjustments of the press, the quality of materials (printing substrate, printing form, rubber blanket or printing ink) and experienced printer, it is not possible to achieve a high quality print. Analysis of the quality of the prints in this research is based on the following quality indicators: optical density, dot gain, rage of tone value and grey balance.
Uncontrolled Keywords:	bezvodni ofsetni tisak, konvencionalni ofsetni tisak, otopina za vlaženje, gustoća obojenja, prirast RTV
Keywords in english:	waterless offset printing, conventional offset printing, dampening solution, optical density, dot gain
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	53
Callnumber:	zja 2010 zav
Inventory number:	D797
Status:	Unpublished
Date Deposited:	15 Nov 2013 21:36
Last Modified:	06 May 2014 13:40
URI:	http://eprints.grf.unizg.hr/id/eprint/769

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