géotextile non-tissé aiguilleté

OBS: Pour géotextile non-tissé ou non-tissé lié mécaniquement: Non-tissés voie fondue liés ""mécaniquement"" [...] La longueur infinie des filaments constituant les non-tissés voie fondue est avantageuse, car la liaison mécanique au moyen d'aiguilles de forme particulière permet d'obtenir une cohésion plus grande de la nappe.

CONT: Nonwoven geotextiles are formed from filaments or fibers arranged at random and bonded together into a planar structure. The filaments or the fibers are first arranged into a loose web, then bonded together using one, or a combination, of the following processes: Chemical bonding .... Thermal bonding .... Mechanical bonding by needlepunching : thousands of small barbed needles, set into a board, are punched through the loose web and withdrawn, leaving filaments or fibers entangled. One thus obtains needlepunched nonwoven geotextile.