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The KROENERT Technology Center was brought up to date with the latest rewetting technology using a WEKO-SIGMA rotor carrier.
With the Technology Center, KROENERT offers a unique service at the Hamburg location. The Technology Center's equipment makes it one of the industry's largest test centers for the coating of web-shaped materials: a variety of possible technical processes for coating and lamination from roll to roll are available to choose from.
Here, customers have the opportunity to test coating and drying processes for different end products and with different materials and to optimize all processes and parameters before investing in a new system. Thanks to ongoing internal development work and collaboration with universities, institutes and key suppliers, the Technology Center is always up to date with the latest technology. Most recently, WEKO's rewetting system was renewed and replaced with a WEKO-SIGMA rotor carrier in order to offer customers the best possible results. Paper fibers that have shrunk due to drying lead to wavy and curled papers with an unsightly appearance. Targeted re-moistening relaxes the paper fibers. This ensures flatness, avoids static charges, ensures high product quality and maximizes further processing speed.
Paper is a “living” product that cannot be standardized and whose behavior in a wide variety of processing processes is never completely predictable. Because paper essentially consists of plant fibers. When moisture is absorbed, these fibers expand by up to 25 percent in width and only insignificantly in length. In the same way, they contract when moisture is lost, for example due to heat. Depending on the composition and production, each paper has a defined moisture level before processing, which is based on the ambient climate. However, depending on the climatic conditions during the processing process, this is sometimes subject to serious fluctuations. An extremely effective measure to restore paper to its original properties at the end of the processing process after a fixing or drying process is paper conditioning by re-moistening. In the future, KROENERT customers will be able to rely on WEKO's optimized technology and benefit from better results.
For more information on KROENERT erneuert die Technikumsanlage talk to Weko UK Ltd