Simultaneous multilayer curtain coating is a very attractive application method, because it not only opens up endless possibilities for designing multilayered products with optimized multiple functions nad reduced raw material costs, but it also allows one to manufacture such complex multiayered products effectively (high uniformity of the coated layers) and efficiently (one coating pass, very high web speed). In some aspects, multilayer curtain coating is similar to co-extrusion. However most of relevant process-technological details differ between these two processes.
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