Title Utjecaj postavki Ink-jet jedinice za lakiranje na realizaciju metalik efekata
Author Matko Pintar
Mentor Igor Majnarić (mentor)
Committee member Tomislav Cigula (član povjerenstva)
Committee member Igor Majnarić (član povjerenstva)
Committee member Dubravko Banić (član povjerenstva)
Granter University of Zagreb Faculty of Graphic Arts Zagreb
Defense date and country 2020-7-17, Croatia
Scientific / art field, discipline and subdiscipline TECHNICAL SCIENCES Graphic Technology
Abstract U grafičkoj tehnologiji digitalni tisak svojom cijenom i efikasnošću pokušava sustići
konvencionalne tiskarske tehnike. Inkjet tehnika danas je jedna od vodećih tehnika
digitalnog tiska, ponajprije zbog kvalitete otisaka i brzine tiska. Otiscima ostvarenim u
digitalnim tehnikama dodatnu vrijednost daju mogućnost personalizacije i različiti
postupci dorađivanja. Jedan od cijenom dostupnih efekata je reprodukcija metalik tonova
koja se primjenjuje za potrebe visoko kvalitetnih aplikacija. Moguća realizacija takvog
specijalnog efekata temelji se na parcijalnom lakiranju pomoću Inkjet glava te naknadnog
termalnog nanašanja metalik folije. Takvi postupci se danas mogu izvoditi na hibridnim
strojevima koji prvo nanašaju UV sušeći lak da bi se nakon toga ostvarilo nanašanje
(vezivanje) metalik folije.
U ovom radu testirat će se efekt prihvaćanja laka i folije nanašanjem laka direktno na mat
tiskarsku podlogu (karton za umjetnički tisak, gramature 300 g/m2). Korištena metalik
folija bila je Murata Gold. Za potrebe eksperimenta korišten je tiskarski stroj MGI JET
Varnish 3DS s ugrađenih 5 Konica Minolta Inkjet glava tipa KM1024iLHE-30 s dvije
UV sušeće lampe. Njihovim djelovanjem ispitat će se kako različita količina nanesenog
UV sušećeg laka utječe na adheziju metalik folije te kako produkcijska brzina tiskarskog
stroja JET Varnish 3Ds utječe na istu. Tijekom eksperimenta softverski je mijenjan je
nanos UV laka u modifikaciju 6 karakterističnih debljina (21 µm, 29 µm, 36 µm, 43 µm,
51 µm te 58 µm ) uz konstantnu temperaturu transfera folije od 105 OC. Dodatno je ispitan
i utjecaj brzine kretanja tiskovne podloge (0,300 m/s; 0,240 m/s; 0,159 m/s) uz konstantni
nanos UV laka. Ostvareni otisci analizirani su metodom slikovne analize u programu
ImageJ. Programom OriginPro izračunate su ostvarene devijacije, te su kreirani
karakteristični grafički prikazi. Cilj rada je analizirati kvalitetu otisaka nastalih
nanašanjem metalnih transfer folija, odnosno odrediti kvalitetu vektorskih ilustracija,
točkastih i linijskih elemenata. MGI JET Varnish 3DS najbolje reproducira sve elemente
pri nanosu laka od 21 µm i brzini otiskivanja od 0,240 m/s. nema potrebe za većim
nanosima laka jer neće dati bolji efekt. izuzetak su motivi sa velikom površinskom
pokrivenošću.
Abstract (english) In graphic technology digital printing with its price and efficiency tries catch up with
conventional printing techniques. Inkjet technique today is one of the most used
techniques of digital printing, primarily due to the quality of prints and production speed.
The possibilities of personalization and various finishing procedures add value of digital
prints. One of the available reproduction effects is metallic tones applied for high quality
purposes. The possible realization of such a special effect of partial varnishing uses Inkjet
heads and subsequent thermal transfer application of metallic foil. Such processes today
can be performed by hybrid machines that first had a UV drying varnish to then achieve
the application (bonding) of the metallic foil.
In this paper, the effect of accepting varnish and foil by applying varnish directly on a
matte printing substrate (cardboard for artistic printing, grain 300 g / m2) will be tested.
The metallic foil used was Murata Gold. For the purposes of experimentation, the MGI
JET Varnish 3DS printing machine with a built-in 5 Konica Minolta Inkjet head type
KM1024iLHE-30 with two UV drying lamps is used. The amount of UV drying varnish
applied, affecting the adhesion of the metallic foil and how the production speed of the
JET Varnish 3Ds printing machine affects it will be tested. During the experimental, the
UV application was changed to modify 6 characteristic thicknesses (21 μm, 29 μm, 36
μm, 43 μm, 51 μm and 58 μm) with a constant foil transfer temperature of 105° C.
Additional testing and the influence of the speed of movement of printing media (0,300
m/s; 0,240 m/s; 0,159 m/s) with constant application of UV varnish. The realized prints
were analyzed by the method of image analysis in the ImageJ program. The OriginPro
program calculated realized deviations, which created characteristic graphic
representations. The aim of this paper was to analyze the quality of prints created by
applying metal transfer foils, by determining the quality of vector illustrations, dotted and
line elements. The MGI JET Varnish 3DS best reproduces all elements at a 21 µm varnish
application and a print speed of 0.240 m / s. There is no need for larger coats of varnish
because it will not give a better effect. The exception is motifs with large surface
coverage.
Keywords
tisak folijom
UV lak
slikovna analiza
Konica Minolta ispisne glave KM1024iLHE
Keywords (english)
folio printing
UV varnish
image analysis
Konica Minolta printheads KM1024iLHE
Language croatian
URN:NBN urn:nbn:hr:216:944720
Study programme Title: Graphic technology; specializations in: Graphic technology, Design of graphic products Course: Graphic technology Study programme type: university Study level: graduate Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
Type of resource Text
File origin Born digital
Access conditions Open access
Terms of use
Created on 2024-04-21 10:20:14