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Merck KGaA, Siegwerk implement innovative printing technology.

In close cooperation with its long-standing partner Merck KGaA, Siegwerk has implemented a newly developed printing method using additive color mixing with pearlescent pigments. The first printed results were exhibited at the European Coatings Show 2015 in Nuremberg.

TV screens go from a deep black to a full RGB color spectrum at the flip of a switch. Merck KGaA has now taken this idea to patent a new printing method. Instead of reproducing pictures with the four process colors cyan, magenta, yellow and black (CMYK) on a white background (subtractive color mixing) the process uses the pearlescent colors red, green and blue (RGB) on a black surface (additive color mixing).

Siegwerk produced the respective pearlescent inks with pigments from Merck KGaA. The RGB process called for a totally new reproduction technology in the prepress phase.

"Basically, picture reproduction using additive color mixing is independent of the printing process used," said Wolfram Gieseke, head of R&D BU Tobacco, who accompanied the cooperation with Merck KGaA. "However, gravure printing is predestined for it because it offers the best conditions for the transmission of the pearlescent pigments. The new method can be deployed across business units, with creative opportunities and implementation scenarios for very diverse applications."

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Title Annotation:fresh INK
Publication:Ink World
Date:May 1, 2015
Words:204
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