Razvoj materijala na bio bazi u tiskarstvu = Development of bio-based materials in printing

master's thesis

• Author: Nikolina Puceković
• Mentor: Branka Lozo (mentor)
• Committee member: Branka Lozo (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2014-7-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Grafička industrija se ponovno okreće prema korištenju materijala na bio bazi, kao što je to bilo od ranih dana tiskarstva pa sve do 20. stoljeća kada su proizvodi na bazi petroleja istisnuli iz uporabe materijale dobivene iz obnovljivih izvora. Upotreba održivih rješenja u tisku je promovirana pod inicijativom ekološkog ili green tiska i konstantnog poboljšanja kvalitete ili lean tiska. Boje na bazi biljnih ulja, laboratorijski dobiven premaz od nanoceluloznih kristala (CNC) i papir dobiven od otpadaka u preradi šećerne trske su odabrani tiskovni materijali dobiveni iz obnovljivih sirovina koje obiluju resursima. Ispitivanje tiskarskih svojstva navedenih materijala je provedeno na laboratorijskoj razini u obliku preliminarnih testova za primjenu u ofsetu. Cilj rada je istražiti mogu li materijali na bio bazi konkurirati u tiskarskim svojstvima konvencionalno korištenim materijalima, često dobivenim iz neodrživih izvora. Testovi su rađeni po slijedećim IGT metodama: viskozitet boje, ljepljivost boje, prijenos boje, set-off, tisak mokro na mokro, čupanje i penetracija boje. Reprodukcija boja na bazi biljnih ulja ne ukazuje na veće zaostatke za konvencionalno korištenim bojama na bazi mineralnih ulja koji bi uzrokovali prepreku s tehničke strane kod korištenja u ofsetnom tisku. CNC premaz na papiru povećava sjaj otisaka, ali i produžuje vrijeme sušenja boje. Papir dobiven od otpadaka šećerne trske pokazuje veću čvrstoću površine naspram papira dobivenog od drvnih vlakanaca.

Abstract (english)

The graphic industry is again turning towards the use of bio-based materials, as it was since the early days of printing till the 20th century when petroleum-based products pushed away materials derived from renewable resources. Today sustainable development in the graphic industry is promoted by the green and lean printing initiative. Vegetable oil-based inks, laboratory prepared cellulose nanocrystals (CNC) coating and sugarcane bagasse paper present selected print materials that are derived from renewable raw materials with abundant resources. Materials are examined at laboratory scale in the form of preliminary, printability tests for offset application with a main objective to investigate the printability competitiveness of bio-based materials with conventionally used materials, which are often derived from unsustainable resources. Research was carried out using following IGT test methods: viscosity, tack, ink transfer, set-off, wet-on-wet printing, picking and ink penetration. The ink performance and print reproduction of vegetable oil-based ink did not show substantial difference in comparison to the conventionally used mineral oil-based ink that would cause technical drawback in the use of vegetable oil-based ink in offset. CNC coating on paper increased the surface and print gloss, but as a downside, it prolonged the drying time of ink. Sugarcane bagasse paper showed greater surface strength in contrast to the paper produced from wood fibres.

• Keywords: bio baza; boja; premaz; papir; tiskarska svojstva
• Keywords (english): bio-base; ink; coating; paper; printability
• Language: croatian
• URN:NBN: urn:nbn:hr:216:827540
• 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 20:10:15