Non-woven geotextile (polyester geotextile, non-woven geotextile), also known as geotextile, is a water-permeable geosynthetic material made of synthetic fibers by needle punching or weaving. The finished product is cloth-like, generally having a width of 4-6 meters and a length of 50-100 meters. Geotextiles are divided into woven geotextiles and non-woven geotextiles. Geotextile has excellent filtration, isolation, reinforcement and protection, high tensile strength, good permeability, high temperature resistance, antifreeze, aging resistance and corrosion resistance.
Non-woven geotextiles are made of filaments or short fibers which are laid into a network through different equipment and processes. After a needle punching process, different fibers are intertwined with each other, and the fibers are entangled and fixed to make the fabrics soft and soft. Full, thick and stiff, to meet different thickness requirements to meet the requirements of use, non-woven geotextile has a good fabric gap, good adhesion, due to fiber softness has a certain tear resistance and has good deformation adaptation Ability, at the same time has a good flat drainage capacity, soft surface and many gaps have a good coefficient of friction to increase the adhesion of soil particles, etc., can prevent small particles from preventing the loss of particulate matter while eliminating excess water, the surface is soft and very Good protection. According to the length of the wire, it is divided into a filament non-woven geotextile or a short-filament non-woven geotextile. They all have good filtration, isolation, reinforcement, protection and other functions, and are a widely used geosynthetic material. The tensile strength of the filament is higher than that of the short filament, and can be selected according to specific requirements.