Svojstva papira za novinski tisak

Gašparac, Marko (2013) Svojstva papira za novinski tisak. Diploma work - Pre-Bologna programme. Grafički fakutet. [Mentor: Lozo, Branka].

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Abstract

Novinski papir se izraĎuje u velikoj mjeri, a ponekad i u cijelosti, od sekundarnih odnosno recikliranih vlakana. Sekundarna vlakana se dobivaju od starog papira kao sirovine, stoga novinski papiri imaju neka svojstva različita od papira proizvedenog isključivo od primarnih vlakana. U teorijskom dijelu diplomskog rada prikazan je tijek sirovina kroz njihovu pripremu i proizvodnju recikliranog papira za tisak u rotacijama, koji objašnjava uzroke te pojave. Cilj eksperimentalnog dijela rada je ispitati pet vrsta novinskih papira s nakanom da se uoče njihove meĎusobne različitosti koje pokazuju da je ponekad papir manje debljine i gramature istovremeno čvršći s aspekta otpornosti prema kidanju ili prema cijepanju. Stoga se postavlja hipoteza istraživanja da papiri za novinski tisak, premda proizvedeni od recikliranih ili pretežno recikliranih vlakana, mogu zadovoljiti zahtjeve mehaničke otpornosti bez obzira na debljinu i gramaturu papira.

Item Type:	Diploma work - Pre-Bologna programme
Mentor name:	Lozo, Branka
Defence date:	12 July 2013
Abstract in english:	Newsprint paper is largely made, and sometimes entirely, of primary fibres or recycled fibres. Recycled fibres are obtained from wastepaper as a raw material, therefore newsprint paper properties differ from the paper produced exclusively from recycled fibers. This graduation thesis gives theoretical explanation of the flow of raw materials through their preparation and production of recycled paper for printing in rotations, which explains the causes of this phenomenon. The aim of the experimental part of the thesis is to examine five types of newspaper with the intention to perceive their mutual differences which may show that sometimes less thick and grammage paper is stronger in terms of resistance to tensile or tearing. Therefore, the hypothesis of research is that papers for printing newspapers, although manufactured from recycled or mainly from recycled fibers, can meet the requirements of mechanical resistance, regardless of the thickness and grammage of paper.
Uncontrolled Keywords:	Novinski papir, Reciklirani papir, Novinski tisak, Primarna i sekundarna vlakna, Optička i mehanička svojstva recikliranog papira, Gramatura
Keywords in english:	Newsprint paper, Recycled paper, Newsprint, Virgin and recycled fibre, Optical and strenght properties of recycled paper, Grammage
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakutet
City:	Zagreb
Number of Pages:	62
Callnumber:	loz 2013 gaš
Inventory number:	D1039
Depositing User:	Dora Budić
Status:	Unpublished
Date Deposited:	17 Apr 2014 10:47
Last Modified:	17 Apr 2014 10:47
URI:	http://eprints.grf.unizg.hr/id/eprint/1623

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