Meštrović, Mato (2020) Komparacija visoko produktivnih digitalnih strojeva namijenjenih za tisak etiketa. Master's thesis - Graduate Programme. Grafički fakultet. [Mentor: Majnarić, Igor].
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Abstract
Tehnologija digitalnog tiska sve češće se primjenjuje pri proizvodnji samoljepljivih etiketa. Od trenutno aktualnih NIP tehnika otiskivanja uglavnom se primjenjuje elektrofotografija i Inkjet. U tiskarama tako najčešće možemo pronaći UV-inkjet strojeve (Durst Tau 330 RSC) i elektrofotografske strojeve s tekućim tonerom (HP Indigo WS 6900). Volumen proizvodnje samoljepljivih etikete u stalnom je porastu pri čemu se ističu Polipropilen i etikete s termo osjetljivim slojem namijenjen naknadnim otiskivanjem s termalnim pisačima. Zbog različitog sastava bojila i načina generiranja rastrirane konačne slike u diplomskom radu izvršit će se komparativna analiza reprodukcije CMYK punih tonova (100% RTV-a), ostvarena CMYK RGB raster tonska vrijednost (RTV), ostvareni relativni tiskarski kontrasti (K%), nanašanje boje na boju (traping), pogreška tona (HE%) i sivoća primarnih tonova (GR). Korištene tiskovne podloge pritom će biti Termoeco (sadrži površinski sloj sa dye termo osjetljivim slojem) i polipropilen bijele boje. Mjerna metoda za određivanje razlika u klornoj reprodukciji biti će optička denzitometrija pri čemu će se kao referenca uzeti otisak u skladu s Fogra 39. Time će se odrediti odstupanja mjerenih varijabli te odrediti potrebna korekcija da bi se ostvario preduvjet za točan i ponovljiv kolorni otisak. Za denzitometrijsko mjerenje koristiti će se spektrofotometar i kolorimetar Xrite eXact. Rezultati pokazuju da otisci napravljeni na tiskarskom stroju Durst Tau 330 RSC više odgovaraju FOGRA 39 standardu, pri čemu su bolji rezultati ostvareni na tiskarskoj podlozi Termoeco ScandTherm TCS.
| Item Type: | Master's thesis - Graduate Programme |
|---|---|
| Mentor name: | Majnarić, Igor |
| Thesis Committee: | Cigula, Tomislav and Majnarić, Igor and Banić, Dubravko |
| Defence date: | 17 July 2020 |
| Abstract in english: | Digital printing technology is applied to the production of self-adhesive labels. Of the currently used NIP printing techniques, electrophotography and Inkjet are mostly suitable. Now you can find UV-inkjet machines (Durst Tau 330 RSC) and liquid-tone electrophotographic machines (HP Indigo WS6900) in the production. The production volume of self-adhesive labels is constantly increasing, with Polypropylene and labels with a thermo-sensitive layer intended for subsequent printing with thermal printers standing out. In the thesis due to the different color composition and the way of generating the rasterized final image. A comparative analysis are: CMYK full tone reproduction (100% RTV), achieved CMYK RGB raster tonal value (RTV), achieved relative printing contrasts (K%), trapping, tone error (HE%) and grayness of primary tones (GR). The printing substrates used will be Termoeco (contains a surface layer with a thermo sensitive layer) and white polypropylene. The measurement method for determining the difference in color reproduction will be optical densitometry, and a reference prints in accordance with Fogra 39. Than will determine the deviations of the relevant variables and determine the necessary correction to achieve the prerequisite for accurate and repeated color prints. For densitometric measurement, we use the eXact X-rite spectrophotometer and colorimeter. The results show that the prints made on the Durst Tau 330 RSC printing machine correspond more to the FOGRA 39 standard, with better results being achieved on the Termoeco ScandTherm TCS printing substrate. |
| Uncontrolled Keywords: | Tisak etiketa, UV Inkjet, elektrofotografija s tekućim tonerom, denzitometrija |
| Keywords in english: | Label printing, UV Inkjet, Electrophotography with liquid toner, densitometry |
| Subjects: | TECHNICAL SCIENCES > Graphic Technology |
| Institution: | Grafički fakultet |
| City: | Zagreb |
| Number of Pages: | 84 |
| Callnumber: | MAJ 2020 MEŠ |
| Inventory number: | DB880 |
| Depositing User: | Nina Jelača |
| Status: | Unpublished |
| Date Deposited: | 10 Dec 2020 09:50 |
| Last Modified: | 10 Dec 2020 09:50 |
| URI: | http://eprints.grf.unizg.hr/id/eprint/3265 |
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