Abstract: A protective net, especially for rockfall protection or for verge securing, with a diagonal weave, is formed by a three-dimensional mattress-like structure. The same is woven from individual spiral-shaped bent wire strands, wire bundles, wire cables or suchlike, which incorporate two or more wires or wire strands made of steel. It is of great advantage if the wire strands, wire cables, or wire bundles or suchlike are made at least in part from high tensile steel, and if the protective nets can therefore be equipped with very great strength.

Abstract: A bias weave fabric wherein the weft elements (2) have a tensile modulus of at least 30,000 N/mm.sup.2 and the angle .alpha. between warp (3, 4) and weft (9) is between 10.degree. and 85.degree. whereas the packing factor (b/c) is between 30% and 90%. A process and apparatus for transforming a regular weave fabric (11) to a bias weave fabric is also covered whereby the regular fabric is guided in a zig zag path between a set of rollers (22a-22b) crosswisely arranged in a frame (20).