Sažetak
This investigation determines new procedures of screening applied to multi-colour reproduction. Total individualisation of the image is obtained by introducing the new different screening system for each separation. This process is extended to the microstructure of the individual screening shapes, which was not described until now. Understanding of such procedures is closely linked to security printing, and therefore details are poor and not accessible. Solving of such problems involves team-work in various fields of research: design, prepress, materials in graphic processes, mathematical definition of screen systems and shapes, as well as protection methods for valuables. Proposed methods are performed by PostScript programming of output devices, optical measurements and experimental digital printing, using special, as well as conventional inks.
Ključne riječi
screening; security; design