Structured packing for the material and heat exchange

The invention relates to an ordered packing with a plurality of parallel arranged packing sheets, said package comprises an upper and / or lower edge region, and an intermediate main portion having a transverse curl, wherein the corrugations of adjacent packing sheets intersect. At least a portion of the packing sheets (10) has, in the lower and / or the upper edge region (1, 2) towards the lower and upper packing sheet edge (7) alternately first (5) and second zones (6). In the first zones (5), the corrugation (4) is composed of the main portion (3) unchanged in the edge region (1, 2) continued. The hydraulic resistance of the package in the second zones (6) is lower than in the main region (3).