engleski

Advanced prepress technologies for flexographic printing

Summary: A demand on flexible packaging design is to produce packages that catch the consumer’ s attention. One technique, which packaging designers use, is to create a three-dimensional effect by using blends, vignettes or gradients. Reproducing these elements, flexographic printing with conventional screens at high line rulings in the highlight areas or controlling a 10- micron FM dot still requires a number of workarounds. Printers find that producing smooth gradients in the highlight areas and getting enough density in solid/shadow areas with thinner ink films is a great challenge for flexographic printing. This paper will demonstrate how advanced prepress screening technology accomplishes these tasks. These screening technologies utilizes same- size dots in the highlight areas and randomly removes them, provides smaller dots by widening the shoulder and applies a pattern in the surface of the plate, reduces dot gain, and increases solid ink densities.

Flexographic printing ; Prepress ; Screening ; Density ; Packaging

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