IT202000003790A1 - TURF SYSTEM FOR SPORTS OR DECORATIVE USE AND METHOD FOR INSTALLING THIS SYSTEM - Google Patents

Description

Description of the patent for industrial invention entitled:? GRASS CARPET SYSTEM FOR SPORTS OR DECORATIVE USE AND METHOD FOR INSTALLING THIS SYSTEM ?,

DESCRIPTION

Scope of the invention

The present invention relates to a turf system for decorative or sports use, both at professional and amateur level, comprising artificial or mixed artificial / natural grass.

The invention also refers to a method for laying such a turf system.

Brief notes on the known art

As you know, an artificial turf? essentially consisting of a mat of plastic material to which filaments, also called? bristles?, in synthetic material, usually polyester, with a length of between 3 and 10 cm are attached, so as to form a carpet of synthetic grass. The filaments made of synthetic material are intertwined with the mat by means of known processes which make it possible to create a warp of filaments, dense according to requirements.

Normally, a filling material, also called simply "infill", is distributed between the synthetic filaments. This generally has a granular shape, and is chosen on the basis of the type of sport to which the synthetic turf carpet? intended, for example football, hockey, cricket, rugby, but also based on the type of climatic and environmental conditions more? frequently found at the installation site.

As is known, the filling material essentially performs a draining action, as it regulates the flow of rainwater, or irrigation, protecting the mat in such a way as to give the artificial turf a high durability over time, but above all it gives to the carpet mechanical, physical and technological characteristics similar to those of natural grass carpets, and sometimes even higher.

The features more? important of a filling material are, in particular, the elasticity? of the bottom for the user, the bounce of the ball, the capacity? of shock absorption in the fall, the resistance to traction and torsion caused by the shoe, the resistance to compression, to the penetration of external bodies, as well as? the capacity? absorption and drainage in relation to meteorological and environmental events.

While the draining action of the synthetic carpet is usually carried out by a base portion, or a stabilization infill, usually consisting of sand.

Instead, the? Elasticity? of the carpet?, usually guaranteed by the presence of rubber granules concentrated in the upper portion of the carpet, or? performance infill ?. An example of such a filling material? described in US2002 / 081399.

The artificial turf is normally placed on a base element capable of carrying out a draining action. An example of this basic element provides a first and a second sheet of a synthetic material usually consisting of two layers of perforated non-woven fabric, usually polyester, between which a material is interposed in a granular or reticular form, or in the form of twisted filaments, such as nylon.

However, the traditional basic elements have numerous drawbacks.

The products of the known technique, in particular, with the passage of time, especially in the presence of thermal changes during the year, and with the use of the turf, tend to lose their properties, in particular the elasticity? and to harden, also and above all for their content of synthetic substances, in particular of synthetic rubber.

Another drawback of the products of the known art both for the aforementioned causes and for the possibility? of clogging of the base element due to material such as sand, rubber granules, and other materials transported during the outflow of irrigation water, or rainwater, from the infill of the turf,? that, over time, the draining action of the basic elements also ceases, and is, therefore, high the risk of flooding with the need? to remove the turf and replace the base element with considerable expenditure of time and energy.

A further drawback of the basic elements of the state of the art? represented by the fact that being made, as described above, in synthetic materials, at the time of their removal, for example to replace them, this type of material must be sent to controlled landfills with considerable costs, in addition to the no less negligible high environmental impact that these materials inevitably involve.

Summary of the invention

? it is therefore an object of the present invention to provide a turf system which is highly performing and capable of solving the aforementioned drawbacks of known art turf systems.

? in particular, the object of the present invention is to provide a turf system that is capable of maintaining the structure and the draining efficiency it had at the time of its installation substantially unchanged over time.

It is also an object of the present invention to provide a turf system which is capable of exerting a thermal regulating action of the turf, in particular thanks to the capacity of the turf. of the basic element to absorb a certain amount? of water.

It is furthermore an object of the present invention to provide a turf system made of synthetic grass, or mixed synthetic and artificial turf, which considerably reduces the quantity of turf systems of the known art. of material to be sent to a controlled landfill.

These and other objects are achieved by a turf system, according to the invention, comprising:

- a base element having a predetermined thickness;

- an artificial turf adapted to be arranged above said base element, said artificial turf comprising:

- a mat provided with a first face and a second face opposite to the first face, said mat being configured to be permeable to water so as to allow rainwater, or irrigation, to flow from said second face to said first makes it so as to reach said base element;

- a plurality? of filaments in synthetic material fixed to said mat, called plurality? of filaments of synthetic material projecting from said second face in such a way as to form said turf;

whose main feature? what said basic element? consisting of natural fibers of vegetable origin held together by a natural latex-based glue.

Other technical characteristics of the invention are defined in the dependent claims.

In particular, the aforementioned natural fibers of plant origin are chosen from:

- coconut fibers;

- flax fibers;

- hemp fibers;

- jute fibers;

- branch fibers ?;

- sisal fibers;

- cotton fibers;

- broom fibers;

- manila fibers;

- bamboo fibers;

- kapoc fibers;

- straw fibers;

- Hibiscus fibers;

- banana fibers;

- agave fibers;

- aloe fibers;

- fibers deriving from tree plants, in particular from Eucalyptus;

or a combination thereof.

Advantageously, the aforesaid basic element comprises at least one substantially planar element constituted by the aforesaid natural fibers of vegetable origin pressed and held together by the aforesaid glue based on natural latex.

In a possible embodiment of the invention, the aforesaid basic element further comprises a predetermined quantity? of a natural antibacterial material chosen from: rachis of ear of cereals not coated with a film, or layer, of coating material, and cork, or a combination of them, in such a way as to exert an antibacterial action and therefore slow down a degradation of said natural fibers of vegetable origin.

In particular, the aforementioned basic element can? be formed by a plurality? of adjacent planar elements. Pi? in particular, the adjacent planar elements can be kept mutually engaged by means of the aforementioned natural latex-based glue, advantageously by means of a connecting cord in the aforementioned natural latex-based glue.

In a preferred embodiment, the aforementioned artificial turf can be used. furthermore comprising a filling material distributed on the aforementioned second face of the mat.

Advantageously, the aforesaid filling material can? be made up of loose material of plant origin.

In particular, the bulk material of plant origin can? be chosen from:

- rachis of ear of cereals, in particular cob, that is? corn rachis;

- cereal husks, in particular rice husks;

- a bulk product obtained from raw material based on cork;

- a bulk product obtained from raw material based on ground coconut;

or a combination thereof.

In a further variant envisaged, the aforementioned loose material of vegetable origin can? be subjected to a mixing step with a predetermined quantity? of a predetermined compound based on at least one drying oil, or semi-drying oil, in such a way as to improve the properties? of the bulk material of plant origin. For example, the aforementioned drying oil, or semi-drying oil can? be a stand oil obtained by subjecting the or each drying or semi-drying oil to a heat treatment which involves heating the or each drying or semi-drying oil up to a predetermined temperature T *. In particular, the aforementioned heat treatment can? be conducted in the absence of air, in such a way as to cause a polymerization of said, or each, siccative or semi-siccative oil to increase its stability. For example, the aforementioned temperature T * pu? be higher than 200 ° C, advantageously higher than 250 ° C.

Advantageously, the drying oil can? be chosen from linseed oil, walnut oil, poppy oil, or sunflower oil, or a combination thereof.

In particular, the aforementioned natural fibers of vegetable origin can have a length greater than 5 mm. Preferably, the aforesaid natural fibers of vegetable origin can have a length comprised between 5 mm and 100 cm, advantageously between 5 mm and 60 cm, preferably between 5 mm and 40 cm.

According to another aspect of the invention, a method for laying a turf system includes the steps of:

- positioning a base element having a predetermined thickness on a support surface; - positioning of a turf above said base element, said turf including:

- a mat provided with a first face and a second face opposite the first face, said mat being configured to allow rainwater, or irrigation, to flow from said second face to said first face so as to reach said element of base;

- a plurality? of filaments in synthetic material fixed to said mat, called plurality? of filaments of synthetic material configured to protrude from said second face so as to form said turf;

whose main feature? that the aforementioned basic element includes? consisting of natural fibers of vegetable origin held together by a natural latex-based glue.

Brief description of the drawings

The invention will come illustrated below with the following description of an embodiment thereof, given by way of non-limiting example, with reference to the attached drawings in which:

Figure 1 schematically shows in a perspective view in side elevation a first embodiment of a turf system according to the invention in a disassembled configuration;

- figure 2 schematically shows an enlargement of the base element of the system of figure 1 to highlight some technical characteristics; figure 3 schematically shows in a perspective view in side elevation the turf system of figure 1 in an assembled configuration;

Figure 4 schematically shows in a side elevation view the system of Figure 3;

Figure 5 schematically shows in a perspective view in side elevation a first variant of the turf system of Figure 1 in a disassembled configuration;

Figure 6 schematically shows in a perspective view in side elevation a possible embodiment envisaged for the base element of the system according to the invention;

Figure 7 schematically shows in a perspective view in side elevation another variant of the turf system of Figure 3 in an assembled configuration;

Figure 8 schematically shows in a side elevation view the system of Figure 7;

Figure 9 schematically shows in a perspective view in side elevation a further variant of the turf system of Figure 3 in an assembled configuration;

Figure 10 schematically shows in a side elevation view the system of Figure 9;

Figure 11 schematically shows in a side elevation view yet another variant of the system of Figure 3 provided by the present invention.

Detailed description of some embodiments With reference to Figures 1 to 4, a turf system 1, according to the invention, comprises a base element 10 having a predetermined thickness (s) and a turf 20 adapted to be arranged at the above the base element 10.

In particular, the turf 20 comprises a mat 21 provided with a first face 22 and a second face 23 opposite the first face 22. Pi? in particular, the base element 10? provided with an upper surface 11 and a lower surface 12 opposite the aforesaid upper surface 11. Once the turf 20 has been positioned above the base element 10, the first face 22 of the turf 20 itself is adjacent to the upper surface 11 of the base element 10. The lower surface 12 of the base element 10, on the other hand, is positioned in contact with a support surface 100 (Figure 4).

Mat 21? configured to be permeable to water in order to allow rainwater, or irrigation water, to flow from the second face 23 to the first face 22 and thus reach the base element 10. Pi? precisely, the mat 21 can? be provided with through holes 24, visible for example in figure 4, or can be can? be made of a water-permeable material, for example non-woven fabric, advantageously made of polyester.

The turf 20 is also provided with a plurality of of filaments 25 of synthetic material, for example polypropylene, fixed to the mat 21 and configured to protrude from the second face 23 at a predetermined height, so as to form an artificial turf. In particular, the filaments 25 made of synthetic material can have a length comprised between 20 mm and 150 mm, preferably a length comprised between 30 mm and 100 mm.

According to the present invention, the base element 10? consisting of natural fibers of vegetable origin 15 (see figure 2) held together by an adhesive based on natural latex. For example, the glue based on natural latex can? be a natural latex, preferably rubber latex ?.

The basic element 10 can comprise at least one substantially planar element 13, or? tile ?, consisting of at least one layer of the aforementioned natural fibers of vegetable origin 15. These are, advantageously, pressed and held together by the aforementioned natural latex-based glue, so as to obtain slabs, or? blocks ?, or? bricks?, of product of predetermined dimensions. For example, the pressing phase to which the aforementioned natural fibers of vegetable origin can be subjected 15 can? be such as to reduce the initial height of the same by at least 30%. Advantageously, the pressing step to which the aforesaid natural fibers of vegetable origin 15 can be subjected can be subjected to be such as to reduce the initial height of natural fibers of vegetable origin by at least 50% 15.

The natural latex, in addition to holding together the natural fibers of vegetable origin 15, allows to give to the base element 10, and, consequently, to the turf system 1 as a whole, a high elasticity, thus avoiding use synthetic materials such as rubbers, or similar materials used in the basic elements of the known art. In particular, the aforementioned basic element 10 can? understand a predetermined quantity? by weight of the aforesaid natural fibers of vegetable origin 15 and a predetermined quantity? by weight of the aforesaid glue based on natural latex. Pi? in particular, the aforementioned basic element 10? consisting for a percentage by weight of between 30% and 70% of the aforementioned natural fibers of vegetable origin 15 and for 70% and 30% by weight of the aforesaid natural latex. Advantageously, between 40% and 60% by weight of the base element 10 can? consist of the aforementioned natural fibers of vegetable origin 15 and between 60% and 40% by weight of the aforementioned natural latex.

Preferably, natural latex? caoutchouc latex?, i.e. a? caoutchouc emulsion? in water. In particular, the aforementioned glue based on natural latex? consisting of at least 70% natural latex, preferably rubber latex. Advantageously, the aforesaid glue based on natural latex? consisting of at least 90% natural latex, preferably rubber latex. For example, the natural latex used to hold together the aforementioned natural fibers of plant origin 15 can? be extracted from Hevea Brasiliensis, or Hevea Guianensis, or Hevea Benthamiana, or a combination thereof.

The aforementioned predetermined thickness (s) of the base element 10 can? in particular be greater than 5 mm, advantageously between 5 mm and 80 mm, preferably between 6 mm and 70 mm. In a possible embodiment, the aforesaid thickness s of the base element 10 can? be between 5 mm and 60 mm, advantageously between 6 mm and 50 mm.

In particular, the aforementioned natural fibers of vegetable origin can be chosen from: coconut fibers, flax fibers, hemp fibers, jute fibers, branch fibers ?, sisal fibers, cotton fibers, broom fibers, manila, bamboo fibers, kapoc fibers, straw fibers, hibiscus fibers, banana fibers, agave fibers, aloe fibers, or any combination thereof. In a further variant of the invention, the natural fibers of vegetable origin are natural fibers of vegetable origin deriving from arboreal plants, for example Eucalyptus. In a preferred embodiment of the invention, the natural fibers of vegetable origin are coconut fibers.

In particular, the aforesaid natural fibers of vegetable origin 15 can have a length greater than 5 mm, advantageously a length comprised between 10 mm and 150 mm, preferably a length comprised between 30 mm and 100 mm. Furthermore, the aforesaid natural fibers of vegetable origin 15 of the base element 10 can be single superimposed fibers (as schematically illustrated in Figure 2), or more? fibers intertwined with each other, or, again, comprising a combination of intertwined fibers and single fibers.

The turf 20 can? be simply rested on the base element 10 to form the turf system 1 illustrated in figure 3. that the aforementioned turf 20 can be engaged, or fixed, to the base element 10, for example by gluing, preferably by means of a natural glue, in particular a natural latex-based glue, or by stitching, for example by means of needling, preferably using a natural fiber, such as cotton, or by means of fastening systems of another type.

In the variant of the invention schematically illustrated in Figure 5, the base element 10? consisting of a plurality? of adjacent planar elements 13 of predetermined dimensions. Although in figure 5 and in figure 6 the planar elements 13 are schematically illustrated as slabs, or? Blocks?, Substantially in the shape of a parallelepiped with a rectangular or square base, according to the provisions of the present invention, they can also have different shapes, e.g. triangular, hexagonal, etc.

In an envisaged embodiment, two adjacent planar elements 13 can be firmly anchored to each other by means of one or more elements. gluing points of a natural glue, advantageously a natural latex-based glue, preferably rubber latex. For example, as shown schematically in Figure 6, two adjacent planar elements 13a and 13b of the base element 10 can be firmly fixed to each other by means of a connecting cord 16, in particular using a natural glue, advantageously an adhesive. based on the aforementioned natural latex, in such a way as to give a remarkable stability? to system 1 when using the turf 20, in particular during a sports competition.

The base element 10, according to the present invention, guarantees a considerably longer duration than the products currently on the market. The base element 10, according to the present invention, in fact, allows to keep the properties substantially unchanged. elastic and above all the effectiveness of the draining action thanks to the fact that the natural fibers of vegetable origin 15 are not easily attacked by microorganisms and bacteria.

The products currently on the market, on the other hand, over time, especially in the presence of thermal changes during the year, and with the use of the turf, tend to lose their properties, in particular the elasticity? and to harden, also and above all for their content of synthetic substances, in particular of synthetic rubber. Another drawback of the products of the known art both for the aforementioned causes and for the possibility? of clogging of the base element due to material such as sand, rubber granules, and other materials transported during the outflow of irrigation water, or rainwater, from the infill of the turf,? that, over time, the draining action of the basic elements also ceases, and is, therefore, high the risk of flooding with the need? remove the turf and replace the base element.

Another advantage of the present invention? that the base element 10? capable of regulating, within certain limits, the temperature of the turf 20 positioned above it, avoiding excessive thermal excursions of the turf 20 itself, in particular with varying climatic conditions. In fact, the natural fibers of vegetable origin 15, and in particular the coconut fibers, are able to absorb a certain quantity? humidity, ie rainwater, or irrigation, coming from the turf 20. Therefore, during the shorter seasons. hot, the aforementioned quantity? of water retained by the base element 10 tends to evaporate and, therefore, to cool the turf 20. In this way, on the one hand the turf 20 itself is preserved, as excessive temperature excursions are avoided, and on the other hand it produces a refreshing action on the athletes, or in any case the people, who use the turf 20 while carrying out an activity? sporting, or recreational.

There? on the other hand, it does not occur in turf systems of known technique, in which the basic elements are quickly crossed by rainwater, or irrigation water, coming from the overlying turf, and comes, almost? immediately, discharged from the system through the existing drainage network. Also for this reason state-of-the-art lawns have a modest average life and cannot be used in environmental conditions with high temperatures without causing inconvenience to the people who use them.

In a variant of the present invention, however, the possibility is envisaged. that the basic element 10 can also include a predetermined quantity? of a natural antibacterial material chosen from: rachis of cereal ears not coated with a film, or layer, of coating material, and cork, or a combination thereof, in such a way as to exert an antibacterial action against the natural fibers of vegetable origin 15 of the basic element 10 and thus further slowing down its possible degradation.

According to the present invention, in general, the turf 20 positioned above the base element 10 can? be substantially of any kind. In particular, the turf 20 can? be of the type without infill as schematically illustrated in Figures 1, 3 and 5.

Alternatively, as shown schematically in Figures 7 to 11, the turf 20 further comprises a filling material 30 distributed on the aforementioned second face 23 of the mat 21 which is arranged between the synthetic filaments 25.

As schematically illustrated in Figures 7 and 8, the filling material 30 can providing a single layer 31 of a single synthetic or natural material, or a mixture of different synthetic and natural materials. For example, the filling material can? be made of synthetic material, such as rubber granules, in particular a styrene-butadiene rubber, or? SBR ?, or a thermoplastic material, an ethylene-propylene-diene monomer, or? EPDM ?, polyvinyl chloride rubber, or ? PVC ?, a synthetic organic material, or a combination thereof. In a possible embodiment, the aforementioned synthetic materials can be mixed with a certain amount? of a mineral material, such as sand, for example silica sand. In addition, or as an alternative to the aforesaid materials, the filling material 30 can? comprise at least one bulk material of plant origin. For example, the aforementioned bulk material of plant origin can? be chosen between: rachis of ear of cereals, in particular cob, that is? corn rachis; cereal husks, in particular rice husks; a bulk product made from raw cork-based material; a bulk product made from raw ground coconut-based material, or a combination thereof.

In a preferred embodiment, the infill 30? consisting of only one, or more, of the aforementioned loose materials of vegetable origin so that the turf system 1 has a very low environmental impact overall, reducing the product to be landfilled substantially to only synthetic filaments 25.

In the variants illustrated schematically in Figures 9 to 11, the filling material, or infill, 30 comprises more? superimposed layers, for example two layers 31 and 32. In this case too, the individual layers can be individual synthetic or natural materials, for example the synthetic and natural materials described above with reference to Figures 7 and 8, or a mixture thereof. In a possible embodiment, the lower layer, that is the stabilization layer 32 can? be a layer of sand, or a layer of cob. The upper layer 31, also called the performance layer, can? be made up of one of the aforementioned synthetic or natural materials, or of a mixture thereof, or of some of them. In particular, the performance layer 32 can? be a mixture of cereal ear rachis, in particular cob, with cereal husks and / or a bulk product obtained from raw material based on cork, for example in granules, and / or a bulk product obtained from raw material based on coconut, and / or other plant material.

In an envisaged variant, the aforementioned bulk material of vegetable origin can? be obtained through a mixing step of a predetermined quantity? of the aforementioned bulk material of vegetable origin with a predetermined quantity? of a predetermined compound based on at least one drying oil, or semi-drying oil, in such a way as to improve the properties? bulk material of vegetable origin based on at least one drying or semi-drying oil.

For example, the aforementioned drying oil, or semi-drying oil can? be a stand oil obtained by subjecting the or each drying or semi-drying oil to a heat treatment which involves heating the or each drying or semi-drying oil up to a predetermined temperature T *. In particular, the aforementioned heat treatment can? be conducted in the absence of air, in such a way as to cause a polymerization of said, or each, siccative or semi-siccative oil to increase its stability. For example, the aforementioned temperature T * pu? be higher than 200 ° C, advantageously higher than 250 ° C.

Advantageously, the drying oil can? be chosen from linseed oil, walnut oil, poppy oil, or sunflower oil, or a combination thereof.

As schematically illustrated in Figure 11, moreover, in a further variant of the system 1 according to the invention, the aforementioned turf 20 can? further comprising natural grass filaments 26 obtained from at least one plant species forming a natural grass carpet. In this case, therefore, the turf 20? a synthetic-natural mixed carpet.

The above description of a specific embodiment? able to show the invention from the conceptual point of view so that others, using the known technique, will be able to modify and / or adapt this specific embodiment in various applications without further research and without departing from the inventive concept, and, therefore, intends that such adaptations and modifications will be considered as equivalent to the specific embodiment. The means and materials for carrying out the various functions described may be of various nature without thereby departing from the scope of the invention. It is understood that the expressions or terminology used have a purely descriptive purpose and therefore not limitative.

Claims (10)

CLAIMS 1. A turf system (1) comprising: - a base element (10) having a predetermined thickness (s); - a turf (20) adapted to be positioned above said base element (10), said turf (20) comprising: - a mat (21) provided with a first face (22) and a second face opposite the first face (23), said mat (21) being configured to be permeable to water so as to allow rainwater, or irrigation, to flow from said second face (23) to said first face (22) and reach said base element (10); - a plurality? of filaments (25) in synthetic material fixed to said mat (21), said plurality of filaments in synthetic material (25) being configured to protrude from said second face (23) so as to form an artificial turf; said turf system (1) being characterized in that said base element (10)? consisting of natural fibers of vegetable origin (15) held together by a natural latex-based glue. 2. Turf system according to claim 1, wherein said natural fibers of vegetable origin are selected from: - coconut fibers; - flax fibers; - hemp fibers; - jute fibers; - branch fibers ?; - sisal fibers; - cotton fibers; - broom fibers; - manila fibers; - bamboo fibers; - kapoc fibers; - straw fibers; - Hibiscus fibers; - banana fibers; - agave fibers; - aloe fibers; - fibers deriving from tree plants, in particular from Eucalyptus; or a combination thereof. 3. A turf system according to claim 1, or 2, wherein said base element (10) further comprises a predetermined amount? of a natural antibacterial material chosen from: rachis of ear of cereals not coated with a film, or layer, of coating material, and cork, or a combination of them, in such a way as to exert an antibacterial action and therefore slow down a degradation of said natural fibers of vegetable origin. Turf system according to one of the preceding claims, wherein said base element (10) comprises at least one substantially planar element (13) consisting of at least one layer of said natural fibers of vegetable origin pressed and held together by said adhesive to natural latex base. 5. Turf system according to one of the preceding claims, wherein said base element (10) comprises a plurality of elements. of adjacent planar elements (13), and in which said adjacent planar elements (13) are mutually engaged by means of said glue based on natural latex. Turf system according to one of the preceding claims, wherein said artificial turf further comprises a filling material (30) adapted to be distributed on said second face (23) of said mat (21). Turf system according to claim 6, wherein said filling material (30)? consisting of loose material of plant origin chosen from: - rachis of ear of cereals, in particular cob, that is? corn rachis; - cereal husks, in particular rice husks; - a bulk product obtained from raw material based on cork; - a bulk product obtained from raw material based on ground coconut; or a combination thereof. A turf system according to claim 7, wherein said bulk material of plant origin? obtained through a mixing step of a predetermined quantity? of the aforementioned bulk material of vegetable origin with a predetermined quantity? of a predetermined compound based on at least one drying oil, or semi-drying oil, in such a way as to improve the properties? of the bulk material of plant origin. Turf system according to one of the preceding claims, wherein said turf (20) further comprises natural grass filaments (26) obtained from at least one plant species which form a natural grass carpet, so as to obtain a turf (20) mixed natural synthetic. 10. Method for laying a turf system comprising the steps of: - positioning a base element (10) having a predetermined thickness on a support surface (100); - positioning of a turf (20) above said base element (10), said turf (20) comprising: - a mat (21) provided with a first face (22) and a second face opposite to the first face (23), said mat (21) being configured to allow rainwater, or irrigation, to flow from said second face (23) to said first face (22) so as to reach said base element (10); - a plurality? of filaments (25) in synthetic material fixed to said mat (21), said plurality of filaments of synthetic material (25) configured to protrude from said second face (23) so as to form said turf; said method being characterized in that said basic element (10)? consisting of natural fibers of vegetable origin (15) held together by a natural latex-based glue.