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Primerjava lastnosti in kakovosti tiskarskih barv na vodni osnovi za transferni tisk
Podobnik, Tanja (Author), Urbas, Raša (Mentor) More about this mentor... This link opens in a new window, Gošnjak, Simona (Co-mentor)

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Abstract
Diplomsko delo je nastalo v sodelovanju s podjetjem Etiketa tiskarna d.d. Žiri, kjer je bil izveden eksperimentalni del. V podjetju se ukvarjajo s transfernim tiskom, ki je ena od različic sitotiska, kjer se motiv v tehniki sitotiska (eno- ali večbarvnega) odtisne na poseben papir oz. folijo, pri čemer nastane t.i. preslikač, ki se nato s prešo, pri določeni temperaturi in pritisku, prenese na želeno tiskovno podlago. Za izdelavo odtisov preslikačev se v praksi uporabljajo različne sitotiskarske barve. Da lahko zagotovimo kakovosten pretisk preslikača na tiskovni substrat, morajo sitotiskarsko barvo odlikovati določene lastnosti. V podjetju Etiketa tiskarna d.d. Žiri že nekaj let uporabljajo sitotiskarske barve enega proizvajalca, odločili pa so se preizkusiti nove. Namen raziskave diplomske naloge je bil primerjati obstoječo uporabljano sitotiskarsko barvo na vodni osnovi za tisk preslikačev z novo izbrano. V ta namen je bila izvedena analiza uporabe obstoječe R1 in novo izbrane R2 sitotiskarske barve. Zaradi zaščite podatkov podjetja barvi nista poimenovani z njunima komercialnima imenoma, skladno s tem pa tudi niso navedeni podatki proizvajalca. Preslikači so bili izdelani v petih barvnih odtenkih. Barvni odtenki so bili za obe sitotiskarski barvi pripravljeni po enakih recepturah, odtisi pa so bili narejeni pri enakih pogojih tiska. Cilj raziskave diplomske naloge je bil ugotoviti, ali novo izbrana R2 sitotiskarska barva lahko nadomesti obstoječo R1. V ta namen so bile opravljene številne meritve, raziskave in primerjave, skladne z izbranimi kakovostnimi parametri, ki jih določajo podjetje Etiketa tiskarna d.d. Žiri in njeni naročniki. V raziskavi diplomske naloge je bilo s pomočjo analiz in primerjav ter z upoštevanjem kakovostnih parametrov ugotovljeno, da bi novoizbrana R2 sitotiskarska barva lahko nadomestila obstoječo R1. Navkljub dobrim rezultatom pa bi bilo treba zagotoviti, da bi s spremembami receptur dosegli enak barvni ton.

Language:Slovenian
Keywords:barvne razlike, barvni ton, polimer vodnega poliuretana, preslikač, sitotiskarska barva, transferni tisk
Work type:Bachelor thesis/paper (mb11)
Organization:NTF - Faculty of Natural Sciences and Engineering
Year:2018
Views:433
Downloads:382
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Secondary language

Language:English
Title:Comparison of properties and quality of waterbased printing inks for transfer printing
Abstract:
The diploma thesis was prepared in a collaboration with the company Etiketa tiskarna d.d. Žiri, where the experimental part was conducted. The company uses transfer printing, which is one of the versions of screen printing, where the design is printed in a screen printing technique (mono- or multy-colour) on a special paper or a foil forming i.e. transfer, which is later, using a crusher, transferred onto a printing surface, at specific temperature and pressure. For the production of the transfers different screen printing inks are being used. In order to ensure quality transfer of the transfer on the printing substrate screen printing inks need to posess certain properties. The company Etiketa tiskarna d.d. Žiri has been using for several years now screen printing inks from of one manufactorer, though lately they have decided to try new ones. The purpose of the diploma thesis was to compare the existing water-based screen printing ink for the transfer printing with the new one. For this purpose, an analysis of the existing R1 and the newly selected R2 screen printing ink was conducted. In accordance with the privacy policy of the company, both printing inks are not named with their commercial names, in accordance the manufacturer's data is also missing. Transfers were printed in five different colour shades. Colour shades were for both selected printing inks prepared according to the same recepies, and the prints were produced under the same printing conditions. The aim of the diploma thesis was to establish whether the newly selected R2 screen printing ink can replace the existing R1. For that purpose, several measurements, researches and comparisments have been made, all in accordance with the selected quality parameters, determined by Etiketa tiskarna d.d. Žiri and its contractors. In the research we have, with the help of analyses and comparisons, as well as considering the quality parameters, established, that the newly selected R2 screen printing ink could replace the existing R1. Though, in spite of good results, it would be necessary to ensure that with the changes of the recipes the same colour shade would be achieved.

Keywords:colour differences, colour shade, screen printing ink, transfer, transfer printing, water-based polyurethane polymer

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