Reparing method of polyethylene twist netting for net box or purse net

Abstract

The invention relates to a net mending method for a polyethylene twist net used by a net cage or a purse net, which relates to net mending and is required to provide the net mending method for maintaining the mechanical property of the polyethylene twist net after mending. The method comprises the following steps of: cutting of the net, terminal treatment of mesh feet, selection of seam and the net mending means. The method is characterized in that: a hole of the net is cut into a rectangle or a square, and terminals of the mesh feet of cutting edges are processed by the melting method; a novel net with the same specification is selected and cut into a rectangle or a square, and the terminals of the mesh feet of the cutting edges are processed by the melting method, and the vertical mesh number and the horizontal mesh number of the novel net are respectively one mesh more than the hole of the net; a high-strength nylon multifilament net is selected to be the seam, and the terminal of the seam is processed by the melting method; the net used for net mending is overlapped with the hole of the net, and superfluous net meshes of the net used for net mending compared with the net in the vertical direction and the horizontal direction are aligned with net meshes on the circumference of the hole; and the seam is used for beginning to mend the net on a crude foot on a net mesh joint point which is three meshes far away from the hole, and the seaming is performed by the seam according to the general trend of the seam until the terminal is seamed. The method is used for mending the net.

Description

Technical field: [0001] The invention belongs to a method for repairing knotless nets for fishing. Background technique [0002] Mesh is a sheet-like braided fabric woven into a certain mesh structure by mesh wires. It is an important material in fishery production. Mesh can be divided into two types: knotless mesh and knotted mesh. Knotless meshes include twisted meshes, warp knitted meshes, flat woven meshes and twisted meshes; knotted meshes include slipknotted meshes, deadknotted meshes and deformed knotted meshes. Ethylene twisted mesh is a special structure of knotless mesh, generally made of 2 or 3 strands of polyethylene monofilament twisted and interspersed with each other. Ethylene twisted mesh has better mesh longitudinal and transverse tension, and the mesh is not easily deformed during use. Compared with warp-knitted mesh or knotted mesh with the same tensile mechanical properties, polyethylene twisted mesh has fast settlement speed, low water flow resistance,...

AI Technical Summary

Problems solved by technology

At present, there is no recognized repair technology of polyethylene twisted mesh for cages or seines, and there is no national standard or industry standard for mesh repair methods of polyethylene twisted mesh for cages or seines. Other fields use polyethylene twisted mesh. There is no corresponding repair technology and repair method standard for the mesh

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