Određivanje utjecaja premaza na karakteristike ofsetnih otisaka na kartonskim podlogama

master's thesis

• Author: Marijan Brekalo
• Mentor: Tomislav Cigula (mentor)
• Committee member: Davor Donevski (član povjerenstva)
• Committee member: Tomislav Cigula (član povjerenstva)
• Committee member: Igor Majnarić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2020-9-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Ovo istraživanje provedeno je s ciljem definiranja utjecaja i prihvatljivosti primjene funkcionalnih

premaza na ofsetnim otiscima za kartonsku ambalažu. Za potrebe istraživanja otisnuto je sedam

funkcionalnih premaza, u različitim omjerima nanočestica cink oksida i silicijevog dioksida u

biopolimeru polikaprolaktonu. Kako bi se ocjenila prihvatljivost pripremljenih premaza, provest

će se evaluacija raznih karakteristika kartonske ambalaže: glatkost, krutost, sjajnost, određivanje

slobodne površinske energije i kolorimetrijskih i tonskih vrijednosti procesnih boja. Ovo

istraživanje je dokazalo da nijedan premaz nije uzrokovao promjenu kolorimetrijskih vrijednosti

kako bi otisak bio neprihvatljiv prema standardu ISO 12647-2:2013 te su stoga prihvatljivi za

korištenje u izradi ambalažnih proizvoda. S druge strane u ispitivanim koncentracijama

nanočestica, nije zapažen značajan iskorak u svojstvima. U budućim istraživanja potrebno je

provesti evaluaciju i ostalih karakteristika ambalaže te više koncentracije nanočestica kako bi se

moglo očekivati značajan napredak u svojstvima ambalažnog materijala.

Abstract (english)

This research was conducted with the purpose of defining influence and acceptability of the

application of functional coatings on offset prints on packging materials. For the purposes of the

research , seven functional coatings were printed, in different ratios of zinc oxide and silicon

dioxide nanoparticles in the biopolymer polycaprolactone. In order to evalue acceptability of

prepared coatings, an evaluation of different characteristics of cardboard materials were

conducted: smoothness, stiffness, gloss L*a*b* values, tonal values of process colours. The

research has proved that application of prepared functional coatings did not caused unacceptable

change in colour (colour stayed in accordance to ISO 12647-2:2013) and could be use din in

packaging industry. On the other hand, coating with the defined composition did not caused

significant improvement in measured properties. In future research, it is necessary to evaluate other

features of packaging and higher concetrations of nanoparticles to expect better properties of

packaging materials.

• Keywords: funkcionalni premazi; kolorimetrijske vrijednosti; polikaprolakton; nanočestice
• Keywords (english): functional coatings; colorimetric values; polycaprolactone; nanoparticle
• Language: croatian
• URN:NBN: urn:nbn:hr:216:818335
• 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: 2024-04-18 23:30:55