The net body is composed of a plurality of net pieces connected into a large block, and then folded and stitched into a frustum-shaped net body. The mesh size decreases from front to back, and the mesh body is thick at the front and thin at the back. The net bag is made of a dense mesh, which is connected with the net body and woven into a circle with weaving cloth. When fishing, by controlling the mesh size and putting it into the water, the fish can catch the pectoral fin and the fish head after touching the net, so that the fish can not advance and retreat, thus achieving the purpose of fishing.
Introduction.
Fishing nets are divided into gill nets, trawls, purse seines, netting and laying nets according to their functions. It requires high transparency (partial nylon mesh) and strength, good impact resistance, wear resistance, mesh size stability and softness, and appropriate elongation at break (22% ~ 25%).
It is made of monofilament, multifilament twisted yarn (with mesh) or monofilament through weaving (Raschel), primary heat treatment (fixing nodules), dyeing and secondary heat treatment (fixing mesh size). The main raw materials for weaving fishing nets are1.2 mm in diameter, 2 15 ~ 36 strands of 2 10 denier nylon, polyester multifilament and ethylene monofilament, and the weaving methods include knotting, twisting and warp knitting.