In the production of geotextile most widely used two technological process: 1. Spunbond 2. Dry holstoformirovanie. In this global trend in the production of nonwoven geotextile shows the most intense development of spunbond. Artificial (synthetic) fibers used in the manufacture of geotextiles: The most popular polyolefin fibers are polypropylene and polyester. These polymers are converted into staple fibers, which are respectively converted into non-woven material.
Or polymers are converted into non-woven spunbond material technology, with extrusion of polymers to fibers that form in the canvas and connected thermally in geotextile production of spunbond technology most widely used thermoplastic polypropylene fibers of polyesters (polyester) polymers and copolymers are widely used in the spunbond and staple fibers. Nylon fibers are used only in small amounts in the form of staple fibers and nonwoven materials made from spunbond technology. The main area of non-woven nylon materials made of spunbond technology, is strengthening the subbase of pavement and glass fiber filters. The materials provide a low friction surface to an underlying basis, which facilitates the establishment pavement. Production of non-woven geotextile of staple fiber nonwoven geotextile manufacturing process of staple fibers can be divided into three stages: The formation of the canvas; Bonding fiber canvas; Finishing. In this case, the main raw material for production are the staple fibers. Production of staple fibers includes a few basic steps: Preparation of the melt; Molding fibers; Decorating formed fibers. Preparation of melts begin with the transfer of the original polymer in a plastic condition – melt.