Radić Seleš, Valentina (2017) Usporedba optičke stabilnosti uzoraka otisnutih s UV bojom i s konvencionalnom bojom. Master's thesis - Graduate Programme. Grafički fakultet. [Mentor: Bates, Irena].
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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.
| Item Type: | Master's thesis - Graduate Programme |
|---|---|
| Mentor name: | Bates, Irena |
| Thesis Committee: | Zjakić, Igor and Bates, Irena and Banić, Dubravko |
| Defence date: | 26 September 2017 |
| Abstract in 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. |
| Uncontrolled Keywords: | UV boje, Konvencionalne boje, Ubrzano starenje, Optička stabilnost, CIE LAB |
| Keywords in english: | UV inks, Conventional inks, Accelerated aging, Optical stability, CIE LAB |
| Subjects: | TECHNICAL SCIENCES > Graphic Technology |
| Institution: | Grafički fakultet |
| City: | Zagreb |
| Number of Pages: | 46 |
| Callnumber: | BAT 2017 RAD |
| Inventory number: | DB653 |
| Depositing User: | Nina Jelača |
| Status: | Unpublished |
| Date Deposited: | 26 Jan 2018 10:14 |
| Last Modified: | 26 Jan 2018 10:15 |
| URI: | http://eprints.grf.unizg.hr/id/eprint/2782 |
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