Usporedba optičke stabilnosti uzoraka otisnutih s UV bojom i s konvencionalnom bojom

master's thesis

• Author: Valentina Radić Seleš
• Mentor: Irena Bates (mentor)
• Committee member: Igor Zjakić (član povjerenstva)
• Committee member: Irena Bates (član povjerenstva)
• Committee member: Dubravko Banić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2017-9-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Ofsetni tisak je tehnika tiska koja je još uvijek vodeća tehnika kod tiska

papirnatih i kartonskih podloga, iako digitalni tisak također pokriva dosta veliko

područje. UV ofsetni tisak u odnosu na konvencionalni ofsetni tisak razlikuje se,

između ostalog, po drugačijem procesu sušenja. Ovom tehnologijom otisci se

suše djelovanjem UV energije preko polimerizacije radikala.

Cilj ovog rada je usporediti optičku stabilnost pri ubrzanom starenju uzoraka

otisnutih s UV ofsetnom bojom i konvencionalnom ofsetnom bojom.

Otiskivanje u ovom radu provodit će se na tri različite tiskovne podloge. Uzorci

će biti otisnuti s UV bojom i konvencionalnom ofsetnom bojom u realnoj

proizvodnji. Simulacija ubrzanog starenja na uzorcima izvesti će se na dva

načina: s povišenom temperaturom (T = 60°C, u periodu od 24, 72 i 96 sati) i s

Xenon lampom (T = 60°C, t = 24 sata). Na uzorcima će doći do određenog

pada kvalitete otisaka koja može, a i ne mora biti vidljiva ljudskom oku.

Cilj rada je definirati promjene u kvaliteti otisaka i zaključiti razliku između

otisaka otisnutih UV i konvencionalnim bojama i u kojem je slučaju potrebna

dodatna zaštita otiska kako bi se smanjila moguća promjena u obojenju

djelovanjem dužeg stajanja u navedenim uvjetima.

Abstract (english)

Offset printing is a printing technique that is still the leading technique for

printing paper and board bases, although digital printing also covers a large

area. UV offset printing compared to conventional offset printing differs, among

other things, by a different drying process. With this technology, the prints are

dried by UV energy through the polymerization of the radical.

The aim of this study is to compare optical stability of prints printed with UV

offset printing ink and conventional offset printing ink after a treatment with

accelerated aging. The simulation of accelerated aging on the samples will be

performed in two ways: with elevated temperature (T = 60°C, in period of 24, 72

and 96 hours) and Xenon lamp (T = 60°C, t = 24 hours). Samples will have a

certain drop in the print quality that may and may not be visible to the human

eye.

The aim of the study is to define the changes in the quality of the prints and to

conclude the difference between the imprints printed in UV and conventional

inks and in which case additional print protection is required in order to reduce

the possible change in coloration by acting longer in stated conditions.

• Keywords: UV boje; Konvencionalne boje; Ubrzano starenje; Optička stabilnost; CIE LAB
• Keywords (english): UV inks; Conventional inks; Accelerated aging; Optical stability; CIE LAB
• Language: croatian
• URN:NBN: urn:nbn:hr:216:888191
• 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: Open access
• Created on: 2024-04-18 21:55:06