US20090098378A1 - Artificial Fiber for Use in an Artificial Grass Sports Field - Google Patents

Artificial Fiber for Use in an Artificial Grass Sports Field Download PDF

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Publication number
US20090098378A1
US20090098378A1 US11/883,434 US88343406A US2009098378A1 US 20090098378 A1 US20090098378 A1 US 20090098378A1 US 88343406 A US88343406 A US 88343406A US 2009098378 A1 US2009098378 A1 US 2009098378A1
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Prior art keywords
fiber
artificial
stiffness
flange portion
fiber according
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US11/883,434
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Pieter Spaans
Paulus Ignatius Van Leur
Geurt Bastiaan Slootweg
Frederik Jan Van Der Gaag
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Ten Cate Thiolon BV
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Ten Cate Thiolon BV
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Application filed by Ten Cate Thiolon BV filed Critical Ten Cate Thiolon BV
Assigned to TEN CATE THIOLON B.V. reassignment TEN CATE THIOLON B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VAN LEUR, PAULUS IGNATIUS, SLOOTWEG, GEURT BASTIAAN, SPAANS, PIETER, VAN DER GAAG, FREDERIK JAN
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    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23957—Particular shape or structure of pile
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section

Definitions

  • the invention relates to an artificial fiber of the monofilament-type for use in an artificial grass sports field wherein, seen in a transverse sectional direction of the fiber, at least part of the fiber is provided with stiffness-enhancing portion extending in the longitudinal direction thereof.
  • the invention also relates to an artificial grass lawn suitable for sports fields, consisting at least of a substrate to which one or more artificial fibers according to the invention are attached.
  • a drawback of the artificial fibers that are currently known is that they attend to assume a flat orientation relative to the ground surface after being played on. This results in so-called “bare patches” in the artificial grass sports field and thus in an increased risk of injuries, etc.
  • This problem can be eliminated in part, for example, by providing a granular infill material such as sand or granules of a plastic material between the artificial fibers.
  • a granular infill material such as sand or granules of a plastic material between the artificial fibers.
  • the presence of these infill granules leads to a more upright orientation of the artificial grass fibers.
  • the infilled grains provide a softer, shock-absorbing playing surface on which players are less prone to injury.
  • they provide improved playing characteristics, so that the playing characteristics of artificial grass sports fields resemble those of natural grass sports fields as much as possible.
  • Another solution to the problem as described above is to increase the stiffness of the monofilament by changing the chemical composition and/or the processing method thereof. This is undesirable, however, because it will lead to a more abrasive artificial grass sports field with an increased risk of injuries.
  • a further solution to the problem as described above is to adapt the geometry of the artificial fiber, for example, as proposed in US 2001/033902 or in WO 2005/005730.
  • Both patent documents disclose fibers provided with stiffness-enhancing means.
  • the artificial fibers that are obtained exhibit an increased risk of splitting and/or fracture as a result of material stresses that may be set up in the fiber, for example, due to loads exerted thereon during play or temperature changes that may occur.
  • US 2001/033902 discloses a composite filament fiber (also called multifilament) which, on account of the geometry and the orientation of the stiffness-enhancing means, specifically provides weak lines of fracture in the composite fiber.
  • the fiber is required to split in that case to create multiple filament fibers.
  • the fiber is less flexible, on account of the geometry of the fiber, exhibits less tendency to assume a flat orientation or to split or fracture, and furthermore does not exhibit an increased risk of injuries or have an adverse effect on the playing characteristics.
  • the artificial fiber comprises at least two fiber flange portions, at least one fiber flange portion forming the stiffness-enhancing portion, while at least two fiber flange portions have a uniform thickness.
  • the stiffness-enhancing portion extends the full length of the fiber.
  • the stiffness-enhancing portion can extend at least partially in the transverse sectional direction.
  • the stiffness-enhancing portion is configured as at least one fiber flange portion extending at an angle to the plane formed by the fiber.
  • the at least one fiber flange portion extends at an angle of about 90 degrees or about 45 degrees to the plane formed by the fiber in that embodiment.
  • the at least one fiber flange portion is straight, curved or spiral-shaped.
  • FIGS. 1-5 show various embodiments of an artificial fiber according to the invention.
  • FIGS. 6 and 7 schematically show a few embodiments of an artificial grass sports field provided with an artificial fiber according to the invention.
  • FIGS. 1-5 are cross-sectional views of artificial fibers according to the invention, in which each fiber 30 - 70 is provided with stiffness-enhancing portion 33 - 73 extending in the longitudinal direction of the fiber.
  • the fiber 30 is configured as an extruded band of plastic material having a longitudinal direction 32 , which artificial fiber 30 has a V-shaped transverse cross-section made up of two fiber flange portions 13 a and 13 b , respectively, which extend in a transverse direction on either side of the longitudinal axis 32 .
  • the stiffness-enhancing portion is indicated at 33 in the embodiment shown in FIG. 1 and comprises a curved or rounded portion along the longitudinal axis joining laterally opposed, directionally diverging fiber flange portions 13 a and 13 b . The stiffness-enhancing portion resists deformation of the fiber.
  • the stiffness-enhancing portion 43 is configured as at least one fiber flange portion 43 extending at an angle to the plane formed by the artificial fiber 40 .
  • the artificial fiber 40 also has a V-shaped cross-section made up of two fiber flange portions 40 a - 40 b , which extend symmetrically in a transverse direction with respect to the longitudinal axis 42 .
  • the stiffness-enhancing portion 43 is incorporated in the fiber at the location of the longitudinal axis 42 .
  • the fiber 50 includes two fiber flange portions 50 a - 50 b , which extend symmetrically in a transverse direction with respect to the longitudinal axis 52 and which have a curved shape, which curved shape forms the stiffness-enhancing portions 43 a and 43 b , respectively.
  • the fiber flange portion 50 a - 50 b is curved, with each fiber flange portion 50 a - 50 b comprising a curve.
  • FIG. 4 shows an alternative embodiment of the artificial fiber shown in FIG. 3 , in which the artificial fiber 60 is provided with fiber flange portions 60 a - 60 b exhibiting multiple curves (two in this embodiment). Each fiber flange portion 60 a - 60 b exhibits two curves 63 a - 63 a ′ and 63 b - 63 b ′, respectively, which form the stiffness-enhancing portion.
  • the artificial fiber 70 comprises three fiber flange portions 70 a - 70 c , which extend in a star-shaped manner with respect to the longitudinal axis 72 . It will be apparent that more than three fiber flange portions extending symmetrically with respect to the longitudinal axis 72 may be used in this embodiment.
  • each fiber flange portion 70 a - 70 c in this embodiment comprises a curve, which curves form in the stiffness-enhancing portions 73 a - 73 c.
  • the fiber flange portions 70 a - 70 c extend in a star-shaped, albeit curved, manner with respect to the longitudinal axis 72 in FIG. 5
  • the flange portions 70 a - 70 c of the fiber 70 of another embodiment may be straight.
  • the fiber flange portions 70 a - 70 c (the legs) may be identical in length in that embodiment, while in another embodiment the legs may be different in length, similar to the embodiment shown in FIG. 2 .
  • the artificial fiber shown in FIGS. 1-5 is configured as a monofilament fiber obtained by means of an extrusion process.
  • stiffness-enhancing portions which preferably extend in the longitudinal direction of the fiber and which may optionally extend in the transverse direction of the fiber.
  • the fiber is less flexible, and thus will exhibit less tendency to assume a flat orientation in the artificial grass sports field.
  • FIGS. 1-5 provide a possibility of absorbing or retaining water, which has a positive effect on the playing characteristics of the field.
  • the fiber flange portions 30 a - 30 b ; 40 a - 40 b ; 50 a - 50 b ; 60 a - 60 b and 70 a - 70 b in FIGS. 1-5 each have a uniform thickness.
  • the uniform thickness significantly adds to the life of the fiber, as wear is prevented.
  • FIGS. 6 and 7 show a few embodiments of an artificial grass sports field in which an artificial fiber according to the invention can be used.
  • the artificial grass sports field comprises a substrate 1 , to which several artificial fibers 2 (corresponding to the fibers 30 - 70 in FIGS. 1-5 ) are attached at the locations indicated at 3 .
  • the extruded artificial fiber may be provided on the substrate either individually or in the form of a bundle of fibers 2 a - 2 c , which are twined together, for example.
  • the artificial fiber according to the invention may be a monofilament.
  • several monofilaments may also be combined into bundles by twining, after which each bundle is attached to the substrate 1 .
  • the substrate shown in FIG. 7 has an open structure, being composed of a grid of supporting yarns 1 a - 1 b , on which the artificial fibers 2 are provided.

Abstract

An artificial fiber for use in an artificial grass sports field is disclosed wherein, seen in a transverse sectional direction of the fiber, at least part of the fiber is provided with a stiffness-enhancing portion extending in the longitudinal direction thereof. The artificial fiber includes at least two fiber flange portions, at least one fiber flange portion forming the stiffness-enhancing portion, while at least two fiber flange portions have a uniform thickness. The improved artificial fiber is less flexible and consequently exhibits less tendency to deform to a flat orientation, but does not increase the risk of injuries to players or have an adverse effect on the playing characteristics of the field. Also disclosed is an artificial grass lawn, suitable for sports fields, having a substrate to which one or more artificial fibers of the invention are attached.

Description

  • This application is a National Stage of PCT/NL2006/000057 filed Feb. 3, 2006 claiming the priority of NL1028224, filed Feb. 8, 2005, the entire disclosures of which are incorporated herein by reference.
  • The invention relates to an artificial fiber of the monofilament-type for use in an artificial grass sports field wherein, seen in a transverse sectional direction of the fiber, at least part of the fiber is provided with stiffness-enhancing portion extending in the longitudinal direction thereof.
  • The invention also relates to an artificial grass lawn suitable for sports fields, consisting at least of a substrate to which one or more artificial fibers according to the invention are attached.
  • Many sports, such as field hockey, tennis, American football, etc., are now played on artificial grass sports fields, which sports fields are composed of an artificial grass lawn on which artificial fibers are provided. Although athletes sustain fewer injuries on a natural grass sports field when falling or making a sliding tackle, on account of the softer surface thereof, such sports fields are often severely damaged when the above sports are played thereon, precisely because they are used intensively and because of the varying influence of the weather conditions.
  • A drawback of the artificial fibers that are currently known is that they attend to assume a flat orientation relative to the ground surface after being played on. This results in so-called “bare patches” in the artificial grass sports field and thus in an increased risk of injuries, etc.
  • This problem can be eliminated in part, for example, by providing a granular infill material such as sand or granules of a plastic material between the artificial fibers. The presence of these infill granules leads to a more upright orientation of the artificial grass fibers. In addition, the infilled grains provide a softer, shock-absorbing playing surface on which players are less prone to injury. Furthermore, they provide improved playing characteristics, so that the playing characteristics of artificial grass sports fields resemble those of natural grass sports fields as much as possible.
  • The use of an infill in artificial grass sports fields, however, has a number of drawbacks. Not only is the construction of such an artificial grass sports field more labor-intensive than the construction of a natural grass sports field, but an artificial grass sports field provided with an infill requires subsequent maintenance as well. The initially uniform distribution of the granular infill can be disturbed by intensive usage. As a result, areas containing hardly any infill may form in places where the field is played on very intensively, for example, in the goal area. This has an adverse effect on the quality of play, which can lead to an increased risk of injury.
  • Another solution to the problem as described above is to increase the stiffness of the monofilament by changing the chemical composition and/or the processing method thereof. This is undesirable, however, because it will lead to a more abrasive artificial grass sports field with an increased risk of injuries.
  • A further solution to the problem as described above is to adapt the geometry of the artificial fiber, for example, as proposed in US 2001/033902 or in WO 2005/005730. Both patent documents disclose fibers provided with stiffness-enhancing means. However, on account of the geometry of the fiber and the location of the stiffness-enhancing means, the artificial fibers that are obtained exhibit an increased risk of splitting and/or fracture as a result of material stresses that may be set up in the fiber, for example, due to loads exerted thereon during play or temperature changes that may occur.
  • It is also noted in this connection that US 2001/033902 discloses a composite filament fiber (also called multifilament) which, on account of the geometry and the orientation of the stiffness-enhancing means, specifically provides weak lines of fracture in the composite fiber. The fiber is required to split in that case to create multiple filament fibers.
  • Similar weak artificial fibers that are liable to split and/or fracture are disclosed in WO 2005/005730. That publication also discloses a fiber comprising stiffness-enhancing means, but the fiber, on account of its geometry, has undesirable points or lines of fracture at which undesirable material stresses may be set up, for example, due to loads being exerted thereon during play (sliding tackles, etc.) or temperature changes that may occur.
  • It is one object of the present invention to avoid such a weak artificial fiber that remains susceptible to splitting and fracture, and to provide an improved artificial fiber for use in an artificial grass sports field, which fiber is provided with stiffness-enhancing portion. The fiber is less flexible, on account of the geometry of the fiber, exhibits less tendency to assume a flat orientation or to split or fracture, and furthermore does not exhibit an increased risk of injuries or have an adverse effect on the playing characteristics.
  • According to the invention, the artificial fiber comprises at least two fiber flange portions, at least one fiber flange portion forming the stiffness-enhancing portion, while at least two fiber flange portions have a uniform thickness.
  • More specifically, the stiffness-enhancing portion extends the full length of the fiber. On the other hand, the stiffness-enhancing portion can extend at least partially in the transverse sectional direction.
  • In another embodiment, the stiffness-enhancing portion is configured as at least one fiber flange portion extending at an angle to the plane formed by the fiber. The at least one fiber flange portion extends at an angle of about 90 degrees or about 45 degrees to the plane formed by the fiber in that embodiment.
  • In other embodiments, the at least one fiber flange portion is straight, curved or spiral-shaped.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The invention will now be explained in more detail with reference to the drawings, in which:
  • FIGS. 1-5 show various embodiments of an artificial fiber according to the invention; and
  • FIGS. 6 and 7 schematically show a few embodiments of an artificial grass sports field provided with an artificial fiber according to the invention.
    •  DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
  • FIGS. 1-5 are cross-sectional views of artificial fibers according to the invention, in which each fiber 30-70 is provided with stiffness-enhancing portion 33-73 extending in the longitudinal direction of the fiber.
  • In the embodiment shown in FIG. 1, the fiber 30 is configured as an extruded band of plastic material having a longitudinal direction 32, which artificial fiber 30 has a V-shaped transverse cross-section made up of two fiber flange portions 13 a and 13 b, respectively, which extend in a transverse direction on either side of the longitudinal axis 32. The stiffness-enhancing portion is indicated at 33 in the embodiment shown in FIG. 1 and comprises a curved or rounded portion along the longitudinal axis joining laterally opposed, directionally diverging fiber flange portions 13 a and 13 b. The stiffness-enhancing portion resists deformation of the fiber.
  • In the embodiment shown in FIG. 2, the stiffness-enhancing portion 43 is configured as at least one fiber flange portion 43 extending at an angle to the plane formed by the artificial fiber 40. In this embodiment, the artificial fiber 40 also has a V-shaped cross-section made up of two fiber flange portions 40 a-40 b, which extend symmetrically in a transverse direction with respect to the longitudinal axis 42. The stiffness-enhancing portion 43 is incorporated in the fiber at the location of the longitudinal axis 42.
  • In the embodiment shown in FIG. 3, the fiber 50 includes two fiber flange portions 50 a-50 b, which extend symmetrically in a transverse direction with respect to the longitudinal axis 52 and which have a curved shape, which curved shape forms the stiffness-enhancing portions 43 a and 43 b, respectively. In this embodiment, the fiber flange portion 50 a-50 b is curved, with each fiber flange portion 50 a-50 b comprising a curve.
  • FIG. 4 shows an alternative embodiment of the artificial fiber shown in FIG. 3, in which the artificial fiber 60 is provided with fiber flange portions 60 a-60 b exhibiting multiple curves (two in this embodiment). Each fiber flange portion 60 a-60 b exhibits two curves 63 a-63 a′ and 63 b-63 b′, respectively, which form the stiffness-enhancing portion.
  • In the embodiment shown in FIG. 5, the artificial fiber 70 comprises three fiber flange portions 70 a-70 c, which extend in a star-shaped manner with respect to the longitudinal axis 72. It will be apparent that more than three fiber flange portions extending symmetrically with respect to the longitudinal axis 72 may be used in this embodiment. In addition, each fiber flange portion 70 a-70 c in this embodiment comprises a curve, which curves form in the stiffness-enhancing portions 73 a-73 c.
  • While the fiber flange portions 70 a-70 c extend in a star-shaped, albeit curved, manner with respect to the longitudinal axis 72 in FIG. 5, the flange portions 70 a-70 c of the fiber 70 of another embodiment (not shown) may be straight. The fiber flange portions 70 a-70 c (the legs) may be identical in length in that embodiment, while in another embodiment the legs may be different in length, similar to the embodiment shown in FIG. 2.
  • It is noted that the artificial fiber shown in FIGS. 1-5 is configured as a monofilament fiber obtained by means of an extrusion process. In view of the geometries as shown in FIGS. 1-5, use is made of stiffness-enhancing portions, which preferably extend in the longitudinal direction of the fiber and which may optionally extend in the transverse direction of the fiber. As a result, the fiber is less flexible, and thus will exhibit less tendency to assume a flat orientation in the artificial grass sports field.
  • In spite of the use of less flexible artificial fibers that, according to the invention, include stiffness-enhancing portions incorporated in the fiber, it has become apparent that the risk of injuries does not significantly increase and furthermore that the playing characteristics of an artificial grass sports field comprising such artificial fibers 10-100 are not adversely affected.
  • It is also pointed out that the embodiments shown in FIGS. 1-5 provide a possibility of absorbing or retaining water, which has a positive effect on the playing characteristics of the field.
  • In addition, the fiber flange portions 30 a-30 b; 40 a-40 b; 50 a-50 b; 60 a-60 b and 70 a-70 b in FIGS. 1-5 each have a uniform thickness. Thus, no material stresses that might lead to undesirable deformation occur in the fiber material. Moreover, the uniform thickness significantly adds to the life of the fiber, as wear is prevented.
  • FIGS. 6 and 7 show a few embodiments of an artificial grass sports field in which an artificial fiber according to the invention can be used. In both Figures, the artificial grass sports field comprises a substrate 1, to which several artificial fibers 2 (corresponding to the fibers 30-70 in FIGS. 1-5) are attached at the locations indicated at 3. The extruded artificial fiber may be provided on the substrate either individually or in the form of a bundle of fibers 2 a-2 c, which are twined together, for example.
  • In another embodiment, as shown in FIG. 7, the artificial fiber according to the invention may be a monofilament. In this embodiment, several monofilaments may also be combined into bundles by twining, after which each bundle is attached to the substrate 1. The substrate shown in FIG. 7 has an open structure, being composed of a grid of supporting yarns 1 a-1 b, on which the artificial fibers 2 are provided.
  • The foregoing description and the accompanying drawings are illustrative of the present invention. Other variations and arrangements are possible without departing from the spirit and scope of the invention.

Claims (16)

1. An artificial fiber for use in an artificial grass sports field, the fiber defining a longitudinal axis and including at least two fiber flange portions, at least one of the fiber flange portions including a stiffness-enhancing portion along the longitudinal axis to resist deformation of the fiber.
2-11. (canceled)
12. The artificial fiber according to claim 1 wherein each fiber flange portion has a uniform thickness.
13. The artificial fiber according to claim 1 wherein the stiffness-enhancing portion extends the full length of the fiber.
14. The artificial fiber according to claim 1 wherein the stiffness-enhancing portion extends at least partially in a transverse direction relative to the longitudinal axis.
15. The artificial fiber according to claim 1 wherein the fiber includes a star-shaped section comprising at least three fiber flange portions.
16. The artificial fiber according to claim 15 wherein each fiber flange portion has a uniform thickness.
17. The artificial fiber according to claim 15 wherein each fiber flange portion has a uniform length.
18. The artificial fiber according to claim 1 wherein the stiffness-enhancing portion positions at least one fiber flange portion at an angle relative to another fiber flange portion.
19. The artificial fiber according to claim 1 wherein the angle is between about 45 degrees to about 90 degrees.
20. The artificial fiber according to claim 19 wherein the angle is about 45 degrees.
21. The artificial fiber according to claim 19 wherein the angle is about 90 degrees.
22. The artificial fiber according to claim 1 wherein at least one fiber flange portion is substantially planar.
23. The artificial fiber according to claim 1 wherein at least one fiber flange portion is curved.
24. The artificial fiber according to claim 1 wherein at least one fiber flange portion is spiral-shaped.
25. The artificial fiber according to claim 1 wherein the fiber is a monofilament.
US11/883,434 2005-02-08 2006-02-03 Artificial Fiber for Use in an Artificial Grass Sports Field Abandoned US20090098378A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1028224A NL1028224C2 (en) 2005-02-08 2005-02-08 Plastic fiber of the monofilament type for use in an artificial grass sports field as well as an artificial grass mat suitable for sports fields provided with such plastic fibers.
NL1028224 2005-02-08
PCT/NL2006/000057 WO2006085751A1 (en) 2005-02-08 2006-02-03 Artificial fibre for use in an artificial grass sport field

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/000057 A-371-Of-International WO2006085751A1 (en) 2005-02-08 2006-02-03 Artificial fibre for use in an artificial grass sport field

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/402,063 Continuation US8530026B2 (en) 2005-02-08 2012-02-22 Artificial fiber for use in an artificial grass sports field

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US20090098378A1 true US20090098378A1 (en) 2009-04-16

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US11/883,434 Abandoned US20090098378A1 (en) 2005-02-08 2006-02-03 Artificial Fiber for Use in an Artificial Grass Sports Field
US13/402,063 Active US8530026B2 (en) 2005-02-08 2012-02-22 Artificial fiber for use in an artificial grass sports field

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Application Number Title Priority Date Filing Date
US13/402,063 Active US8530026B2 (en) 2005-02-08 2012-02-22 Artificial fiber for use in an artificial grass sports field

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US (2) US20090098378A1 (en)
EP (2) EP2796618B1 (en)
JP (1) JP5038909B2 (en)
KR (1) KR101359028B1 (en)
CN (1) CN101115882B (en)
AU (1) AU2006213172B2 (en)
ES (2) ES2853733T3 (en)
NL (1) NL1028224C2 (en)
WO (1) WO2006085751A1 (en)
ZA (1) ZA200705952B (en)

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US20110262665A1 (en) * 2009-01-14 2011-10-27 Ten Cate Thiolon B.V. Artificial grass fibre and artificial lawn comprising such a fibre
US20120114942A1 (en) * 2010-11-09 2012-05-10 Tarkett, Inc. Fiber for synthetic grass field
US20130004683A1 (en) * 2011-07-01 2013-01-03 Ten Cate Thiolon B.V. Synthetic fibre and an artificial lawn comprising such a fibre
CN103374869A (en) * 2012-04-13 2013-10-30 常州纺兴精密机械有限公司 Chemical fiber multifilament enhanced artificial turf filament
US20200308777A1 (en) * 2017-11-03 2020-10-01 Polytex Sportbelage Produktions-Gmbh Artificial turf fiber with a non-circular cladding

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US9267232B2 (en) 2005-03-24 2016-02-23 Tarkett Inc. Synthetic turf system having an infill trapping structure
PL2520714T3 (en) 2005-06-17 2014-06-30 Tarkett Inc Synthetic turf surface
WO2010128196A1 (en) 2009-05-06 2010-11-11 Saltex Oy Pile yarn filament for artificial turf, artificial turf, and method for making pile yarn filament
ES2442270T3 (en) * 2009-07-14 2014-02-10 Green Vision Co. Ltd. Strand of grass
KR20160144979A (en) * 2014-03-27 2016-12-19 폴리텍스 스포르트베래게 프로둑티온스 게엠베하 Artificial Turf and production method
CN107858891A (en) * 2017-11-29 2018-03-30 江门市美森人造草坪有限公司 One kind is exempted to fill lawn
ES2952100T3 (en) * 2018-11-20 2023-10-27 Dutchblue World B V Sports field and methods of forming and operating the same

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US8530026B2 (en) 2013-09-10
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US20120156401A1 (en) 2012-06-21
ES2505256T5 (en) 2018-08-10

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