Monofil fabric for use as a perpendicular trickle wall in exchange columns

Claim 1

In a column for vapor-liquid exchange a trickle wall in the form of a sheet-like material, which wall consists of a wire fabric arranged in a vertical plane, one part of the wires of said fabric being arranged vertically and parallel to one another, the other part of the wires of said fabric being arranged horizontally and parallel to each other, at least a part of said horizontally arranged wires being positioned contiguously and in touching contact to one another in groups, the vertical spacing between a group of contiguously positioned wires and the next group of said horizontal wires being at least about as great as the diameter of a wire of said next group of wires and greater than the spacing between individual horizontal wires in said group of wires, whereby when in use liquid accumulates at the junction of the horizontally running contiguously disposed wires, which liquid is distributed in the vertical spacing which separates the groups of contiguously positioned wires so as to avoid the formation of rivulets as said liquid descends vertically over said trickle wall.