| 摘要 |
<p>The invention relates to a net for delimiting working areas or the like comprising a laminar structure (2) of plastic material presenting a first dimension (L), particularly a prevailing dimension, and a second dimension (H) transversal to the first dimension, said laminar structure (2) presenting at least a plurality of lightening perforations (3) defining a plurality of substantially planar longitudinal bands (4) that extend along the first dimension (L) and a plurality of planar transversal bands (5) that extend along the second dimension (H). The first and second bands (4, 5) intersect at respective nodes (6) to form a plurality of meshes. The first dimension (L) exhibits mechanical tensile strength properties that are similar to mechanical tensile strength properties of the second dimension (H) and the laminar structure (2) exhibits a weight per square metre comprised between 20 g/m 2 and 100 g/m 2 . The laminar structure thus obtained is advantageously realised with a double-stretching stage performed first along the first dimension (L) and then along the second dimension (H).</p> |
