Improvement in the level of synthetic turf for the practice of physical activities

摘要

Improvement in the level of synthetic turf for the practice of physical activities, more particularly it is a floor of synthetic grass (g) made from a substrate or cover (10), where they are fixed multiple synthetic filaments (20) which remains in the vertical.With height (x) so as to compose the area to be filled by damping material (30); this kind of floor of synthetic turf is applied on the ground (s), prepared in advance, and is used for the practice of sports activities.Such as football and others; the substrate (10) of the present invention is composed of at least a blanket double layer formed of polypropylene or polyethylene (11) and a layer of? No tissue? TNT (12) or another layer of polypropylene.And all these layers are coated with latex enriched (13) with mineral and chemical reagents; the synthetic filaments (20) are made of polyethylene, in the form fibrilada, multifibrilada or monofilament with titulagem between 4500 to 19000 dtex, preferably 11000 dtex These wires (20) are fixed to the substrate (10) by means of needling and are distributed from 2500 to 20.000 points per m2; the height (x) of the filaments (20) can vary from 15mm to 80mm; the damping material or filler (30) is constituted only of granules of rubber (31), preferably of the type SBR (styrene butadiene rubber), and the preferential mesh granule is s. And from 0.10 till 3,00 mm and the quantity or load to be applied can be 4 to 30 kg / m2.