For fishing nets with relatively shallow depth: for fishing nets less than 2 meters, people can drain the water, put the nets into the water symmetrically, and slowly enter the water, which will improve the actual effect of fishing.

For deep fishing nets: generally, for fishing nets higher than 2m, try to use ships and other auxiliary software. The method of entering water is the same. Note that the fishing nets need not be pulled too tightly.

Wait for a few hours to close the network, release the network at night, and close the network in the morning,

The common fishing tools are made of more than 99% artificial fibers. The key is the drawing, composite or composite drawing of polyester 6 or modified material polyester, as well as chemical fibers such as high pressure polyethylene, polyester and polyvinylidene styrene. Fish nets have many functions.

The function of fish net is divided into gill net, traction net (trawl), fence net, website construction and network laying. It is required to have high definition (part of polyester mesh), compressive strength, good impact resistance and wear resistance. The mesh size is stable and flexible, with moderate fracture extension (22%~25%). The utility model is produced and processed by drawing, multi filament twisted wire (with woven net) fishing net pictures or hand woven drawing (raschel, without woven net), primary heat treatment process (fixed knot), coloring and secondary heat treatment process (fixed mesh size).

What are the types and knotting methods of fishing nets?

The nets used in fishery production include trawls, purse strings, cast nets, fixed nets and net cages. Trawls and purse seines are heavy nets used in marine fishing. The mesh size is 2.5-5cm, the diameter of the net rope is about 2mm, and the net weight is several tons or even dozens of tons. Usually, a pair of tugs are used to pull and catch the fishing school, or light boats are used to lure fish into groups and enclose them. Cast nets are light nets for fishing in rivers and lakes. The mesh size is 1 to 3 cm, the diameter of the mesh rope is about 0.8 mm, and the net weight is several kilograms. Fixed nets and cages are used for artificial propagation in lakes, reservoirs or bays. The size and specification of the fish vary according to the fish raised, and the fish are kept in certain waters to prevent escape.

The raw materials of woven fishing nets are mainly 15 to 36 strands of 210 denier nylon (nylon), polyester multifilament and 380 denier polyethylene multifilament. The knitting methods include knotting, twisting and warp knitting.

Knotting method

This is the traditional method of making fishing nets. The fishing net is fixed with warp and weft in the shuttle. The knot is 4 times the diameter of the net rope and protrudes from the plane of the net. This kind of net is called knotting net. When the knot collides with the fish and the side of the boat, it will damage the fish and wear the net. Because the chemical fiber is smooth and elastic, it is easy to cause problems such as loose nodules and uneven meshes.

Twisting method

The two groups of yarns are twisted by the machine at the same time and pass through each other to form a net at the intersection. This kind of network is called connectionless network. As the yarn at the net junction is not bent, the net is very smooth, and the friction is reduced, but the twisting machine is inefficient, the preparation procedure is complex, and the horizontal mesh is limited, so it is only suitable for larger woven nets. Grid.