Method of manufacturing a composite material for the protection against - vandalism, in particular for seats, and a composite material obtained.

摘要

A composite material for providing protection against vandalism, in particular for seats, is manufactured by making an assembly of three superposed layers in which the middle layer is an anti-vandalism metal grid, and in holding said three layers together. The outlet first layer (3) is a non-woven fabric (2), and the three layers (3, 5, 7) are held together by single-strike needling using barbed needles having rounded tips, such that after needling, the outside face of the first layer has no wires coming from the second layer, and the outside face of the third layer has a limited number or no wires coming from the second layer. Needling is performed using needles having rounded tips (13) in which the depth of the barbs (14) is less than half the diameter of each of the wires making up the metal grid, and greater than half the diameter of all or some of the fibers constituting the first layer.