Janoschka magazine Linked_V3_2018

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40 n e t w o r k & p e o p l e Between Micrometres and Hair-Splitting Why brand management depends on a few millionths of a millimetre Consistency is the very essence of brand presentation and can be achieved only through painstaking precision and meticulousness at every stage in order to get the colours, textures, typefaces and images all exactly right. Perfect printing depends on many different parameters, beginning with the production and imaging of the printing cylinders, where a host of different criteria have to be taken into account. We spoke to Isabell Kegel, process engineer for imaging at Janoschka Deutschland, about her job, in which reconciling many extremes is all in a day's work. linked: You are a process engineer for imaging. How would you describe the final result of your work? ISABELL KEGEL: My job is to ensure that a brand always looks the same the world over, no matter whether the packaging is printed in Germany, Asia or America or whether it's made of foil, cardboard or plastic. Nevertheless, I am actually still quite a long way from the printed product. I don't even work directly with the cylinder or with the printing tools, but at a very early stage. I make sure that the motifs that will later be visible on the packaging look as they should do on the cylinders. Isabell Kegel, Process Engineer Imaging at Janoschka Deutschland I'm responsible for making sure that the laser engravers make perfect cylinders, which in turn deliver perfect printing results – at all of Janoschka's locations all over the world. To be certain that this happens, I make a master of the machine settings. Later, in Malaysia or Russia, say, I calibrate every direct laser system to this master. That way, the cylinders imaged by these systems conform to a uniform standard.
issue #3 © l i n k e d 41 Diameter of paper-clip wire 0.8mm Pin 0.6mm Pig bristle 0.1mm Isabell Kegel and Janoschka’s Cellaxy C500: this direct laser from Hell Gravure Systems is a universal, high-performance laser tool for the direct engraving of rotogravure and embossing cylinders. It reproduces text in high definition with a resolution of 2540 dpi and images on a 90l/cm screen with soft vignettes. The Cellaxy offers fully automated, multipass engraving with an engraving depth of up to 800 µm. Newspaper 0.08mm Human hair 0.05mm Cigarette paper 0.03mm Staple fibre 0.006mm pronounced: [mu:] 1 µ = 1 µm = 0.000001 metres 0.001mm linked: So in other words, you make sure that everything rolls smoothly, so to speak – and not just the cylinders. What do you need to watch out for? ISABELL KEGEL: Basically, everything. Our standardisation team has broad-ranging expertise, from technical know-how to knowledge of local conditions: in Russia, for example, there are strict regulations that allow only solvent-free, i.e. water-based, inks to be used. These inks behave entirely differently from the solvent-based ones used in Germany or Malaysia. Following our calibration, the direct laser machines produce cylinders that yield precisely the same printed result, despite variations such as different ink compositions. This way our clients can be certain that all Janoschka-made cylinders will produce exactly the same printing results, 1:1 – wherever they are imaged. linked: What makes your work so fascinating? isabell KEGEL: My work is in the realm of a few μ for cell dimensions up to 250 kilograms, which some printing cylinders can weigh. These contrasts fascinate me, especially because at Janoschka they are often the starting point for groundbreaking high-tech advancements. By paying attention to microscopic details, I make sure that a brand looks simply splendid. To do this, I need a precise understanding of the machines that make the printing and embossing tools. I can see whether or not it is technically feasible to realise a given design as envisaged using the tools we have. The widths of the finest lines, progressions and nuances of colour – the resolution of the machine has to be matched to all of these so that they can be transferred to the cylinder. The meticulous production of the tools forms the basis for a perfect printing result, since the effect of even the tiniest imprecision multiplies with each further step in the production process.
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Janoschka magazine Linked_V3_2018

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