Fishing nets, including Polyester Raschel Knotless Nets, Polyester Knotted Net, are functionally divided into gill nets, trawl nets (trawl nets), fence nets, net nets and net nets. High transparency (partial nylon mesh) and strength, good impact resistance, abrasion resistance, mesh size stability and softness, and appropriate elongation at break (22% to 25%) are required. From monofilament, multifilament twist line (with netting) or monofilament weaving (raschel, no netting), primary heat treatment (fixed nodules), dyeing and secondary heat treatment (fixed mesh size) processing.
Fishing nets used in fishery production include trawls, fences, nets, fixed nets and cages. Trawls and seine nets are heavy-duty nets for marine fishing. The mesh size is 2.5 to 5 centimeters, and the diameter of the wire rope is about 2 millimeters. The mesh weight can reach several tons or even tens of tons. Usually, a pair of tugboats are used to pull the chasing group separately or lure the fish cluster by the light boat to enclose. Cast nets for light fishing nets for fishing in rivers and lakes. The mesh size is 1 to 3 cm, the diameter of the rope is about 0.8 mm, and the weight of the mesh is several kilograms. Set-up nets and cages are lakes, reservoirs or artificial breeding nets for bays. The size of the fish is different depending on the species of fish cultured. Frying the fish around a certain area of water does not escape the culture.