Dodirne linije obojenih elemenata printerskih otisaka

Petrović, Tijana (2012) Dodirne linije obojenih elemenata printerskih otisaka. Baccalaureus work - Undergraduate programme. Grafički fakultet. [Mentor: Lozo, Branka].

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Abstract

U ovom završnom radu opisana je i istraživana pojava prelijevanja boja na papirnoj tiskovnoj podlozi (eng. „bleeding“). Nastanku te pojave pogoduje više cimbenika od kojih su najbitniji: InkJet tehnika otiskivanja, vrsta papirne tiskovne podloge i boja za InkJet. Za potrebe eksperimenta u radu korišten je termalni InkJet, koji sliku stvara izbacivanjem kapljica kroz mlaznice što znaci da one prilikom dolaska na tiskovnu podlogu imaju odredenu brzinu zbog koje lakše dolazi do njihova razlijevanja. Isto tako, boja koja se koristi je na bazi vode te ima veliki viskozitet zbog cega se opet boja lakše razlijeva papirnom tiskovnom podlogom. U konacnici, tu je i sama tiskovna podloga, papir, koji je graden od celuloznih vlakanaca izmedu kojih se nalazi odredeni udio nepopunjenog prostora (najcešce se tiska na univerzalni pisaci papir koji ima ta svojstva) kojim se boja onda širi te dolazi do prelijevanja boja. Kako je vec navedeno, ovisno o podlozi, razlicit je i stupanj prelijevanja boja, pa su tako eksperimentom dobiveni rezultati da je ono najvece kod univerzalnog pisaceg papira, zatim kod papira za InkJet, slijede sjajni fotopapiri, a najbolje rezultate (najmanji „bleeding“) daju polusjajni fotografski papiri. Pojava prelijevanja boja je negativna pojava i ovisno o njezinoj izraženosti razlikujemo kvalitetnije, odnosno manje kvalitetne otiske- ako je prelijevanje previše izraženo.

Item Type:	Baccalaureus work - Undergraduate programme
Mentor name:	Lozo, Branka
Defence date:	20 September 2012
Abstract in english:	In this work it has been described occurrence of „bleeding“ colors on the paper printing substrate. It appears because of few factors and the main factors are: InkJet printing technique, type of the paper which is used as printing substrate and color for InkJet. Thermal InkJet, which was used for the experiment in this work, creates the picture by throwing droplets of color through the nozzles what means that droplets have specific speed when they crash into the paper surface because of what color easier spreads through the paper substrate. In the end, there is a printing substrate, paper, which consists cellulose fibers between which there is a certain part of free space (mostly it is printed on the universal writing paper which has that properties) where color then spreads and it gets to the „bleeding“. Depending on the substrate, we have different stages of color spreading, so it is the most expressed by universal writing paper, then by the paper made specifically for the InkJet printing, then follow glossy paper and the best results give semi-gloss photographic paper. This occurrence of color „bleeding“ is negative and depending on it's stage, we can make a difference between better and worse quality prints- if „bleeding“ is too expressed.
Uncontrolled Keywords:	prelijevanje boja, InkJet, boja, papir
Keywords in english:	color bleeding, InkJet, color, paper
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	33
Callnumber:	loz 2012 pet
Inventory number:	Z344
Status:	Unpublished
Date Deposited:	15 Nov 2013 21:46
Last Modified:	28 Apr 2014 13:19
URI:	http://eprints.grf.unizg.hr/id/eprint/1367

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