Web profile control WebMax

AUTEFA Solutions WebMax produces a counter weight profile to avoid the smile effect. This is the key to product quality. WebMax ensures that the carded web weight is already being altered at the crosslapper infeed. Via the layering carriage control, the carded web is deposited on the layering belt in a way that the lapped web weight is controllably lighter in the edge areas compared to the center areas. This concave weight profile therefore compensates the weight changes due to material shrinkage and leads to the highest possible weight evenness in the final product.

With the improvement of the lapped web profile WebMax also leads to a proportional reduction of raw material consumption. A special advantage of this system is that it relates exclusively to the crosslapper Topliner. The WebMax does not require any separate space, and can be retrofitted with a lapper of the Topliner- series. 

In combination with the crosslappers, WebMax ensures maxi mum weight accuracy in the final product and is the key to a high product quality. WebMax counteracts the smile effect with a counterweight profile, which results in a material saving of up to 11 %. Due to the reduced weight in the edge areas of the de posited web, the average product weight is considerably reduced, which results in a reduced fiber consumption. A measuring system at the end of the line with closed loop control significantly helps to save fibers continuously and to achieve uniformity in the final product over the long term. Parameters such as total draft, shrinkage of the web width and length of the control loop are important factors and are to be taken into account in this complex process. This is an important prerequisite for cost-optimised production, especially for spunlace lines.