Device for creating coated paper, cardboard or other strips of fibrous material with at least one thermo-sensitive layer and method for operating such a device

The device comprises means (7) forming a first function layer having a first coating unit in the form of a multi-layered curtain coating tool with a delivery nozzle, and a first subordinated drying system, means (8) forming a second function layer having a second coating unit in the form of multi-layered curtain coating tool with a delivery nozzle, and a second subordinated drying system, and a traction device. A first web guiding path and/or a second web guiding path and means (14) for bypassing the coating unit are equipped under heating the second coating unit. The device comprises means (7) forming a first function layer having a first coating unit in the form of a multi-layered curtain coating tool with a delivery nozzle, and a first subordinated drying system, means (8) forming a second function layer having a second coating unit in the form of multi-layered curtain coating tool with a delivery nozzle, and a second subordinated drying system, and a traction device. A first web guiding path and/or a second web guiding path and means (14) for bypassing the coating unit are equipped under heating the second coating unit. The means for bypassing the coating unit comprises conducting- and/or guiding elements for guiding the carrier webs that are arranged and guided in order to produce a branching (11) in the web guidance behind the first function layer under formation of the first web guiding path in the form of a bypass for coating unit and a junction of the both web guidance path. The drying system of the second means is arranged downstream to the means for bypassing the second coating unit. The means for bypassing the second coating unit are arranged and implemented to produce a branching of the web guidance in the connection on the means forming the first function layer and the junction of the first means before the second drying system of the second means forming the second function layer. The second drying system is arranged in the bypass and the means for web guidance are arranged and formed in order to guide the carrier web in the direction through the second drying system under formation of a further web guidance path. The traction device is arranged before the second coating unit and the branching. The coating units and the drying systems are formed and arranged in the means forming the function layer. The carrier web is freely implemented by a return of the curve direction in longitudinal direction of the device observed within the means formin