Visible and infrared graphic with dedicated halftoning on PP
This research covers developments in security printing of transparent infrared graphics on polypropylene. It involves the preparing of dual images of objects, textual messages in visual-V and NIR-Z domain is extended with dual separation which defines new flexographic procedures of colour mixing.
Halftoning algorithms support transparent flexographic film that does not absorb printing inks and does not penetrate into the printing media. The balance between equalizing of inks in the visual domain, and their differentiation in NIR-Z spectral domain is achieved. An article about the research was published in the Technical Gazette of the University of Osijek.
Click here to download the full article about the research (1.7 MB).
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