Analiza kvalitete bezvodnog ofsetnog tiska

master's thesis

• Author: Jelena Zavada
• Mentor: Igor Zjakić (mentor)
• Committee member: Igor Zjakić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2010-2-00, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

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.

Abstract (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.

• Keywords: bezvodni ofsetni tisak; konvencionalni ofsetni tisak; otopina za vlaženje; gustoća obojenja; prirast RTV
• Keywords (english): waterless offset printing; conventional offset printing; dampening solution; optical density; dot gain
• Language: croatian
• URN:NBN: urn:nbn:hr:216:146432
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-17 09:59:23