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European Coatings Show Preview December 2014 www european coatings show com 23 Focus Ines Marquard Synthopol Chemie comments on the current status of curing technologies and explains the pros and cons of UV LED in particular Ines Marquard Synthopol Chemie Efficiency is required at shorter wavelengths UV LED curing is a promising future technology but a lot of research is still necessary to overcome drawbacks  UV EB curable promises increasing efficiency lower storage costs and delivery of a constant product quality If so why doesn t everyone use this technique Ines Marquard In my opin ion people are still afraid of the capital costs Besides in vestment in a radiation lamp production and storage of UV EB coatings should take place in dark conditions Additionally special safety standards apply especially when working with EB lamps Furthermore curing of pig mented coatings or thick layers still presents a chal lenge for this market But I am optimistic for the future that research and development will succeed in overcoming these problems because the market increasingly requires faster curing and environmen tally sound systems These two arguments are the big strength of this technique  UV LED curing a prom ising curing technique for the future Which aspect still requires research Marquard The environmen tal aspect because UV LED lamps produce no ozone and that means you don t need any special exhaust air cleaning Since the lamps develop less heat during the process that makes them attractive for curing heat sensitive substrates such as a number of plastics and thin layer films The next advantage is the durabil ity of UV LEDs more than 10 000 hours compared to 1 000 5 000 hours for UV lamps Finally the ready to use property no need for warm up meets market demands for faster process ing However greater effi ciency is required at shorter wavelengths and at a greater distance from the object Nowadays customers often combine UV LED with UV lamps in their process to ensure adequate surface curing Although UV LED curing is currently used in adhesives and printing inks it is growing slowly in other segments such as furniture coatings One reason may be the limited choice of special There are still some drawbacks for UV LED curing technologies that are currently under discussion A taste of Bavarian and international cuisine Nuremberg s restaurants offer appetising experiences for every taste After a long and successful day at the ECS networking does not necessarily have to end when the doors of the Messezentrum close Nuremberg offers a variety of different locations where you can meet with business partners old and new for a bite to eat The city s culi nary spectrum ranges from sausages roasted on a char coal grill in traditional style to star rated restaurants Nuremberg has been a mer cantile city since the Mid dle Ages Trading people and merchants often set out to visit the far flung corners of the world On their travels they tasted the culinary de lights of other cultures and brought many of them back home to Franconia Bratwursthäusle Seared over a flaming beech wood grill the little links sold at this rustic inn arguably set the standard for Rostbratwürste across the land You can dine in the timbered restaurant or on the terrace with views of the Hauptmarkt Service can be flustered at busy times Goldenes Posthorn Push open the heavy copper door to find a real culinary treat that has been serving the folk of Nuremberg since 1498 The miniature local sausages are big here but there s plenty else on the menu including many an obscure rural dish and some veggie options The choice of dining spaces ranges from formal to folksy chunky wood to wood panelled Cash only Zum Gulden Stern The oldest sausage restau rant in the world no less Zum Gulden Stern has been grilling bratwursts since 1419 so you can rest as sured they ve got it just right As well as a charming interior and the aforemen tioned sausages this place boasts some of the best sau erkraut in Germany Highly recommended Der Nassauer Keller As an indication of how small we all used to be you have to bend right down to get through the door and clumpety clump your way down the stairs into a former storehouse that the owners have tried but sadly failed it must be said to turn into a classy restaurant Great food great surroundings and attentive service for sure but somehow it doesn t add up to anything much at all Marientor Zwinger Smart and simple with nice wall art this popular place for demolishing pork shoulder and other Franconian dishes also offers international fare from a changing daily menu Check out the fabulous out door area on top of one of the few remaining parts of the old town s defensive wall Prison St Michel This is one of Nuremberg s elegant gourmet restaurants with the evening s fresh cuts displayed in the window It s noted for its excellent sole and dorade as well as choice cuts of prime beef try the chateau briand and lamb fillets It s great for an intimate romantic night out in a quiet street near the castle xz ty raw materials for formulat ing UV LED coatings  Does UV LED curing have any disadvantages Marquard Yes the higher capital costs of the lamps and the specialty coatings make people think twice about investing in this tech nology of the future These coatings need to be more reactive due to the lamps longer wavelengths This can cause stability problems during storage or shipping Changing the spectrum from one wavelength to another is complicated and not even as fast as changing a UV lamp Where several diodes suf fer mechanical damage and break down the whole block has to be replaced xz Source Claudia Otte Fotolia UNNOTICEABLE BUT REMARKABLE A member of the Dörken Group PROTEC Systempasten GmbH Wetterstraße 58 D 58313 Herdecke Germany Tel 49 0 2330 926 432 Fax 49 0 2330 926 236 pasten protec systempasten de www protec systempasten eu DecoTint PREMIUM I Hall 7 Booth 7 743