EP4350076A1 - Remplissage de performance pour gazon, son procédé de production et terrains de gazon comprenant ledit remplissage de performance - Google Patents

Remplissage de performance pour gazon, son procédé de production et terrains de gazon comprenant ledit remplissage de performance Download PDF

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Publication number
EP4350076A1
EP4350076A1 EP23185336.7A EP23185336A EP4350076A1 EP 4350076 A1 EP4350076 A1 EP 4350076A1 EP 23185336 A EP23185336 A EP 23185336A EP 4350076 A1 EP4350076 A1 EP 4350076A1
Authority
EP
European Patent Office
Prior art keywords
weight
comprised
range
infill
performance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23185336.7A
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German (de)
English (en)
Inventor
Giovanni Alampi
Simona Alampi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4350076A1 publication Critical patent/EP4350076A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E01C13/083—Construction of grass-grown sports grounds; Drainage, irrigation or heating arrangements therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
    • D06N7/0071—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing
    • D06N7/0086—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing characterised by the cushion backing, e.g. foamed polyurethane
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/202—Artificial grass

Definitions

  • the infill system is an aspect of primary importance for any artificial grass field: it represents a necessary condition for the safety of the athletes and establishes the performance levels; as a matter of fact, the infill provides appropriate damping and shock absorption, and it creates the physical-mechanical conditions for the development of the game.
  • Infilling a grass turf substantially means filling it with granular inert material having the double task of:
  • the sand represents the first filling layer and it is called “stabiliser” given that its main task is to ballast the grass turf to the ground and stabilise the surface.
  • Performance infill represents the second layer of artificial grass and it consists of microgranules which can be of various types. Therefore, the main tasks to be performed by this kind of infill are:
  • the state-of-the-art of artificial turfs lies in grass infilled not only with sand but also with elastic granules which improve play performance.
  • Each of the type of infill has its advantages, and the choice may depend on the cost, or the balance between duration, elasticity, comfort, as well as the maintenance required to refill the material possibly washed out by rain.
  • the present invention overcomes the disadvantages mentioned above.
  • the present invention relates to performance infill for artificial turf, wherein said performance infill comprises:
  • the performance infill of the present invention has a diameter comprised in the range from 0.5-3.15 mm, according to the official FIFA requirements.
  • Said renewable raw material may be obtained from various sources, such as for example trees, rice, corn, preferably ground corn, sugar beet, glucose.
  • the expression "Sisal” is used to indicate a plant fibre obtained from the Mexican agave, a succulent plant of the Agavaceae family, originating from Yucatan in Mexico, which is very resistant, sound-insulating, anti-static.
  • plant component in loose form preferably loose lignin
  • ground plant component preferably ground lignin
  • the present invention refers to use of polylactic acid (PLA) for the production of performance infill.
  • PLA polylactic acid
  • the present invention refers to the use of lignin for the production of performance infill, wherein said lignin is loose.
  • the Applicant found that the performance infill of the present invention overcomes the disadvantages of the state of the art mentioned above.
  • the performance infill of the present invention is fully vegetable, eco-friendly, according to the European directives, but at the same time it does not deteriorate rapidly like the performance infill currently available on the market.
  • the performance infill of the present invention shows excellent properties in terms of elasticity, resistance to wear and bouncing of the ball, contrary to the eco-friendly products known currently.
  • the performance infill of the present invention does not require refilling in the short and long-term, thus offering the grass field comprising said performance infill a continuous efficiency and durability until normal end of useful life thereof.
  • the performance infill of the present invention may be recovered and regenerated through an extrusion process so as to be laid on the new grass field.
  • the present invention relates to an extrusion process for the production of performance infill, wherein said process comprises the steps of:
  • said temperature of step ii.a) is comprised in the range from 235-290°C.
  • said temperature of steps ii.b) and ii.c) is comprised in the range from 240-295°C.
  • said temperature of step ii.d) is comprised in the range from 255-315°C.
  • the performance infill obtained with the process of the present invention has a diameter comprised in the range from 0.5-3.15 mm, in compliance with the official FIFA requirements, and it has the advantages mentioned above, overcoming the disadvantages of the prior art.
  • the present invention refers to artificial grass fields comprising the performance infill of the present invention forsports activities, play and sports surfaces.
  • sports activities are selected from the group consisting of: football/soccer, hockey, tennis, padel, golf, rugby, artificial mixed football/soccer, natural football/soccer.
  • said artificial grass field comprises:
  • Test 1 Test 2
  • Test 3 Test 3
  • the artificial grass blade of the turf has whitened for the same reason as the infill, given that it is in contact with the silica sand during the cycles. In any case, the artificial grass blades seemed flattened due to the pressure of the embosses mounted on the rollers.
  • the new sample and the sample after wear show the same system performance, if not almost identical. This is due to the presence of the performance infill of the present invention, which guarantees high shock absorption value.
  • Tests were carried at a temperature of 22.9 °C and a relative humidity of 52.6% Shock absorption Test 1 68.6% Test 2 68.3% Test 3 68.8% Average of three tests 68.6%
  • Tests were carried at a temperature of 22.9 °C and a relative humidity of 52.6% Vertical deformation Test 1 10.0 mm Test 2 9.0 mm Test 3 9.5 mm Average of three tests 9.5 mm
  • Tests were carried at a temperature of 22.9 °C and a relative humidity of 52.6% Shock absorption Test 1 34.9% Test 2 34.9% Test 3 33.8% Average of three tests 34.5%
  • measurement uncertainties are expressed as extended uncertainty, obtained by multiplying the uncertainty type by the coverage factor K corresponding to an about 95% confidence level.
  • Such factor K is equal to 2.
  • Figures 3.a-3.d show the spectrum of a sample of the present invention (3.a), a spectrum of a sample comprising a pigment and calcium carbonate (3.b), a spectrum of a plant sample comprising renewable raw materials and calcium carbonate (3.c), and a spectrum of comparison between the previous ones (3.a, 3.b and 3.c).
  • the IR analysis of the three samples shows a high correlation index between the sample of the present invention and the other two.
  • the DSC analysis shows that the sample of the present invention has characteristic melting peaks observed and comparable even in the thermograms obtained from the analysis of the other samples; specifically at 83.3 °C like in the sample with pigment (84.7 °C) and 126.5 °C / 157.3 °C like in the Plant sample from renewable materials (125.0 °C / 152.5 °C).
  • Thermogravimetric analysis conducted to quantitatively determine the weight loss of the sample when heating and verifying the presence of mineral load present in the tested sample.
  • the test was conducted in the presence of a 50 ml/min nitrogen flow, starting from 30 °C up to 900°C, using a heating ramp of 20 °C/min with a TA INSTRUMENTS TGA550 instrument.
  • Figures 5.a-5.b and 5.c show the spectra.
  • the TGA analysis shows that the sample of the present invention has thermal decomposition excursions observed and comparable even in the thermograms obtained from the analysis of the other two samples.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Road Paving Structures (AREA)
  • Cultivation Of Plants (AREA)
EP23185336.7A 2022-10-03 2023-07-13 Remplissage de performance pour gazon, son procédé de production et terrains de gazon comprenant ledit remplissage de performance Pending EP4350076A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202200020259 2022-10-03

Publications (1)

Publication Number Publication Date
EP4350076A1 true EP4350076A1 (fr) 2024-04-10

Family

ID=84829731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23185336.7A Pending EP4350076A1 (fr) 2022-10-03 2023-07-13 Remplissage de performance pour gazon, son procédé de production et terrains de gazon comprenant ledit remplissage de performance

Country Status (2)

Country Link
US (1) US20240110342A1 (fr)
EP (1) EP4350076A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7384344B2 (ja) * 2019-11-01 2023-11-21 株式会社Coool 人工芝、人工芝用充填材及び人工芝生産方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008115085A1 (fr) * 2007-03-20 2008-09-25 David Kim Amado Matériau de remplissage pour système de gazon artificiel
EP3332067B1 (fr) * 2016-07-22 2021-06-30 BEWiSynbra RAW B.V. Gazon artificiel adapté aux terrains de sport
US20210285166A1 (en) * 2017-03-29 2021-09-16 Brock Usa, Llc Infill For Artificial Turf System
EP4047131A1 (fr) * 2021-02-22 2022-08-24 Improve Tec Hönö AB Granulé de remplissage destiné à être utilisé dans un système de gazon artificiel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008115085A1 (fr) * 2007-03-20 2008-09-25 David Kim Amado Matériau de remplissage pour système de gazon artificiel
EP3332067B1 (fr) * 2016-07-22 2021-06-30 BEWiSynbra RAW B.V. Gazon artificiel adapté aux terrains de sport
US20210285166A1 (en) * 2017-03-29 2021-09-16 Brock Usa, Llc Infill For Artificial Turf System
EP4047131A1 (fr) * 2021-02-22 2022-08-24 Improve Tec Hönö AB Granulé de remplissage destiné à être utilisé dans un système de gazon artificiel

Also Published As

Publication number Publication date
US20240110342A1 (en) 2024-04-04

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