Construction safety nets are labor-intensive industrial products, requiring several steps in their production.
First, raw materials are purchased. Options include virgin high-density polyethylene (HDPE) granules (primarily for inspection purposes) and recycled materials, ideally mineral water bottle caps. These are then crushed and granulated by machine.
Next comes the filament drawing, or fiber production. This process is crucial, requiring precise control of the cooling water temperature. The thickness, color, and flexibility of the produced plastic filaments determine the quality of the finished product. Next is the weaving. Commonly used close-mesh netting looms are available in 2-meter and 4-meter widths. The weaving process here also significantly impacts the quality of the finished product. This mainly involves controlling the weaving structure and density, typically ≥800 meshes/100cm².
Finally, the netting is sewn. The woven tubular fabric is cut to approximately 6.2m to 6.5m lengths, ensuring a final length of about 6m after sewing. When sewing, wrap the rope close to the edge of the mesh and sew it together. The weight of the rope should be appropriate for the mesh; it shouldn't be too light or too heavy. Sew twice around the edge of the mesh to ensure it's secure, and then sew the product certificate inside.
After sewing, make eyelets, which are metal rings used to easily thread the rope when hanging the dense mesh. Usually, 20 to 30 holes are made. Machine eyelets are now widely used. Finally, fold the finished dense mesh, pack it, and it's ready for shipment and sale.