IFRA

It is a known fact that the colour gamut of a coldset web offset press reduces over time, the reason mainly being the ink drying behavior and the properties of newsprint. Cold set inks set/dry mainly by absorption. During the drying process, the ink penetrates into the paper substrate and loses its gloss and some saturation. This results in a reduction in colour gamut when compared to a fresh printed sample. At the WAN-IFRA Research and Material Testing Centre, in Chennai, India (labindia@ifra.com), we tried to find out how much the colour gamut reduces over time and what is the effect of different paper and inks on the colour gamut reduction.

The Study with the title: "Reduction of colour gamut after printing in a coldset process" is available now (free of charge).

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