Utjecaj aditiva na kvalitetu otiska u offsetnom tisku

master's thesis

• Author: Marko Šutić
• Mentor: Stanislav Bolanča (mentor)
• Committee member: Stanislav Bolanča (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2007-00-00, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

U ofsetnoj tehnici tiska koja je danas najzastupljenija tehnika tiskanja, kvaliteta otiska

značajno ovisi o karakteristikama otopine za vlaženje.

Zbog toga, ispitivanja u ovom radu temelje se na utjecaju koncentracije aditiva, 2- propanola

u otopini za vlaženje.

Otisci korišteni u ovom radu otisnuti su tako da im se postepeno povećavao udio alkohola u

otopini za vlaženje do pojave toniranja. Ispitivani otisci tiskani su klasičnim bojilima na dvije

vrste tiskovnim podloga: sjajnom papiru za umjetnički tisak i premaznom ofsetnom papiru.

Usporedbom otiska otisnutih s različitim udjelima 2-propanola u otopini za vlaženje,

ustanovljena je zavisnost kvalitete otiska o sastavu otopine za vlaženje. Usporedba otiska

provedena je mjerenjem prirasta rastertonskih vrijednosti i tristimulusnih vrijednosti.

Rezultati mjerenja prikazani su krivuljama realne reprodukcije te trodomenzionalnim

prikazom gamuta ispitivanih otisaka.

Također, sekundarni cilj ovog rada je prikazati prednosti standardizacije i optimizacije

ofsetnog tiska uvođenjem Colour Managementa sustava i izrade digitalnih probnih otisaka

korištnjem ICC profila.

Abstract (english)

In offset printing, which is todays major printing technology, the behaviour of dampening

solution has an significant influence on quality of print.

Therefore, research in this work is based on effects of additives, isopropyl alcohol on

damening solution. Tested prints were done by printing with gradually increasing portion of

isopropyl alcohol in dampening solution, until scumming.

Print samples were printed with classical inks on two printing surface: glossy fine art paper

and coated offset paper.

With comparation of prints printed with different addition of alcohol in dampening solution,

correlations between quality of print and composition of dampening solution are established.

Comparasion of prints was done by dot gain mesuring and mesuring of tristimulus values.

Mesuring results are presented by print characteristic curves and three-dimensional LAB

gamut view.

Also, secondary purpose of this work is to show advantages of standardization and

optimization by introducing Colour Management system in offset printing and by making

digital proofs using ICC profiles.

• Keywords: ofsetni tisak; otopina za vlaženje; aditivi – 2 propanol; prirast rastertonskih vrijednosti; gamut; ICC profili; digitalni probni otisak
• Keywords (english): offset printing; dampening solution; additives – isopropyl alcohol; dot gain; gamut; ICC profiles; digital proof
• Language: croatian
• URN:NBN: urn:nbn:hr:216:421653
• 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 10:47:18