20.500.12556/RUL-158496 Karakterizacija odtisov kapljičnega tiskalnika Canon imagePROGRAF PRO-4000S Characterisation of prints made with inkjet printer Canon imagePROGRAF PRO-4000S Digitalni tisk na tekstil je v zadnjih letih močno v porastu, zato se v industriji pojavlja potreba po standardizaciji digitalnega tiska na tekstil. Pri standardizaciji se pojavi vprašanje, kako in katere lastnosti tekstilnih tiskovnih materialov vplivajo na končne odtise. V raziskavi magistrskega dela smo karakterizirali končne odtise na tekstilnih tiskovnih materialih in jih primerjali z odtisi, narejenimi na papir, pri čemer smo za vse odtise uporabili isti tiskalnik. Namen raziskave je bil določiti osnovne parametre tekstilnih tiskovnih materialov in identificirati, kako ti vplivajo na reprodukcijo barv in kakovost končnih odtisov. V eksperimentalnem delu sta bila uporabljena dva tekstilna tiskovna materiala in en papirni. Za tisk smo izbrali velikoformatni kapljični tiskalnik Canon imagePROGRAF PRO-4000S, ki omogoča tisk z osmimi tiskarskimi barvami (črnili). Za merjenje oziroma vrednotenje odtisov smo uporabili spektrofotometer i1Pro 3 in denzitometer eXact, za umerjanje in profiliranje tiskalnika pa programsko opremo Fiery XF in i1Profiler. Za vsak tiskovni material smo izdelali barvne profile in jih uporabili za tisk testnih form, ki so služile vrednotenju končnih odtisov. Testno formo smo pripravili sami. Za vrednotenje kakovosti končnih odtisov smo najprej primerjali barvne vrednosti s standardnimi barvnimi vrednostmi, podanimi za testne tablice Media Wedge Textile V1 Fogra58, Ugra/Fogra Media Wedge V3.0 in ColorChecker Classic. Izmerili smo rastrsko tonsko vrednost za 100-odstotno črno barvo in naredili slikovno analizo za tiskovno neenakomernost in deformacijo grafičnih elementov. Elemente smo analizirali v horizontalni in vertikalni postavitvi, v pozitivnem in negativnem odtisu. Izbrani elementi so bili linije debeline 0,25 t. e. in 2 t. e., krog s premerom 1 mm, minuskula n, v pisavi Helvetica, v velikosti 20 t. e. in številka 7, v pisavi Helvetica, v velikosti 17 t. e. Rezultati slikovne analize raziskave so pokazali, da osnovne lastnosti tekstilnega tiskovnega materiala, kot je npr. vezava, vplivajo na kakovost končnih odtisov, saj je prihajalo do velikega razlivanja črnila v smeri niti osnove. Z izbranimi nastavitvami, uporabljenim tiskalnikom in z izbranimi tekstilnimi tiskovnimi materiali nismo dosegli skladnosti z betastandardom za tisk na tekstil. Po drugi strani pa je bil izbrani papirni substrat primeren za tisk poskusnih odtisov za ofsetni tisk na premazan papir. Iz raziskave ugotavljamo, da bi bile potrebne še nadaljnje raziskave na področju vpliva osnovnih lastnosti tekstilnih tiskovnih materialov na končne odtise, da bi natančneje dorekli odgovore, kaj vse in kako vpliva na upodobitev odtisov na tekstilne materiale. Digital printing on textiles has been on the rise in recent years, and there is a need in the industry to standardise digital printing on textiles. Standardisation raises the question of how and which properties of the textile printing materials influence the final prints. As a part of the Master thesis, we characterised the final prints on textile materials and compared them with prints on paper, using the same printer for all prints. The aim of the research was to determine the basic parameters of textile printing materials and how these affect the colour reproduction and quality of the final prints. Two textile printing materials and a paper were used for the experimental part. For printing, we chose the large-format Canon imagePROGRAF PRO-4000S inkjet printer, which allows printing with eight colours (inks). We used the i1Pro 3 spectrophotometer and eXact densitometer to measure and evaluate the prints, and Fiery XF and i1Profiler software to calibrate and profile the printer. We created colour profiles for each printing material and printed the test forms that were used to evaluate the final prints. We designed the test form ourselves. To evaluate the quality of the final prints, we first calculated the colour differences using the standard colour values specified for the Media Wedge Textile V1 Fogra58, Ugra/Fogra Media Wedge V3.0 and ColorChecker Classic test charts. We measured the halftone value for 100% black and performed an image analysis for non-uniformity of the prints and the deformation of the graphic elements. We analysed the elements in horizontal and vertical layout, and in positive and negative prints. The selected elements were lines with a thickness of 0.25 pt. and 2 pt., a circle with a diameter of 1mm, the minuscule »n« in Helvetica font, size 20 pt., and the number »7« in Helvetica font, size 17 pt. The results of the image analysis of the investigation showed that the basic properties of the textile printing material, such as the weave, significantly affect the quality of the final prints, as considerable ink bleeding and wicking along the warp threads was observed. With the settings chosen, the printer used and the selected textile printing materials, we did not achieve compliance with the Fogra58 Beta standard for printing on textiles. The selected paper substrate, on the other hand, was suitable for printing »hard proof« for offset printing on coated paper. From the research, we conclude that further research into the influence of the basic properties of textile printing materials would be necessary to provide more concrete answers as to what and how it influences the reproduction of prints on textile materials. osnovne lastnosti tekstilnih tiskovnih materialov digitalni kapljični tisk barvni profili Fogra58 Ugra/Fogra Media Wedge V3.0 ColorChecker Classic basic properties of textile printing materials digital inkjet printing colour profiles Fogra58 Ugra/Fogra Media Wedge V3.0 ColorChecker Classic true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-06-14 09:01:11 2024-06-14 09:01:15 2024-06-29 03:46:38 0000-00-00 00:00:00 2024 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 98314 20582.pdf 20582.pdf 1 01F6166E714F7E3A2963B85FB18F5F07 097f2d4c9a053d5188818cdee87cfaf9c6b20fe851e2bfd7338d254bfb058e55 e719e934-2a1b-11ef-86fa-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186152 Naravoslovnotehniška fakulteta 0 0 0