EP1828449A1 - Kunstgras aus kernmantelfasern sowie daraus gebildeter kunstrasen - Google Patents

Kunstgras aus kernmantelfasern sowie daraus gebildeter kunstrasen

Info

Publication number
EP1828449A1
EP1828449A1 EP05825919A EP05825919A EP1828449A1 EP 1828449 A1 EP1828449 A1 EP 1828449A1 EP 05825919 A EP05825919 A EP 05825919A EP 05825919 A EP05825919 A EP 05825919A EP 1828449 A1 EP1828449 A1 EP 1828449A1
Authority
EP
European Patent Office
Prior art keywords
cladding
core
artificial grass
grass according
artificial
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.)
Granted
Application number
EP05825919A
Other languages
English (en)
French (fr)
Other versions
EP1828449B1 (de
Inventor
Peter Van Reijen
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.)
Tapijtfabriek H Desseaux NV
Original Assignee
Tapijtfabriek H Desseaux NV
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 Tapijtfabriek H Desseaux NV filed Critical Tapijtfabriek H Desseaux NV
Publication of EP1828449A1 publication Critical patent/EP1828449A1/de
Application granted granted Critical
Publication of EP1828449B1 publication Critical patent/EP1828449B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08Surfaces simulating grass ; Grass-grown sports grounds

Definitions

  • the present invention relates to an artificial grass built up of fibres that consist of a core and a cladding, which core and which cladding are composed of a plastic material.
  • Such a type of artificial grass is known per se from European patent EP 0 996 781 granted to the present applicant, which evolved out of WO 99/04074, in which a polyamide-containing yam is used for fabricating artificial grass, wherein the yarn, besides polyamide, also contains a polyolefin compound selected from the group consisting of polypropylene, LLDPE and a block copolymer of polypropylene and polyethylene.
  • a method is disclosed in which the yarn is obtained by means of a co-extrusion process.
  • the cladding consists of polyamide, whilst the core consists of one of the aforesaid plastics.
  • the yarn is a so-called tape filament consisting of a core layer and two outer layers of a material different from that of the core layer, wherein the core layer contains polyester and/or polyolefin material and wherein the outer layers contain high-density polyethylene.
  • Japanese patent publication JP 2003 342848 discloses a yarn for an artificial lawn that consists of a conjugated yarn formed of a resin composition comprising 70-99 wt.% nylon (polyamide) and 1-30 wt.% polyethylene as the inner layer and polyethylene as the outer layer.
  • a well-known phenomenon with artificial grass in particular if the artificial grass is used for playing soccer thereon, is the occurrence of burns when players make a sliding tackle.
  • This problem does not occur with natural grass, which natural material has a high a water content and which feels soft upon contact, so that the friction with the skin will be high.
  • This high friction is disadvantageous from the viewpoint of skin damage, but because of the fact that the natural grass will wear away slightly upon contact, burns do not occur upon contact with natural grass.
  • natural grass is soft and will grow again after having worn away, in which connection it can furthermore be noted that the relatively soft nature of natural grass also contributes to favourable resilient properties.
  • the material used for the artificial grass is a soft material, for example, which has a large elastic range. Such a property makes for a good resilience, but also a high degree of friction, which latter aspect will lead to excessive adhesion of the skin to the artificial grass when a sliding tackle is made, and thus to inevitable damage to the skin, which is undesirable. Said materials are evaluated as unsatisfactory as regards the heat development that takes place when a sliding tackle is made, in spite of the fact that because of the high degree of friction the period of contact between the skin and the artificial grass remains limited.
  • the material used for the artificial grass may also be a hard material having a small elastic range, which leads to unsatisfactory properties as regards resilience but also to less friction. The reduction as regards the degree of friction will lead to less skin damage. In addition to that, said hard materials are evaluated as satisfactory as regards the heat development during sliding tackles, because the period of contact is longer.
  • Another object of the present invention is to provide an artificial grass which exhibits a high degree of durability and which can be composed of commercially available materials.
  • the artificial grass as referred to in the introduction is characterized in that the material for the core has been selected from the group consisting of polypropylene, ethyl vinyl acetate (EVA), saturated styrene thermoplastic elastomer (SEBS), polyamide and polyethylene compounds, or combinations thereof.
  • EVA ethyl vinyl acetate
  • SEBS saturated styrene thermoplastic elastomer
  • polyamide polyethylene compounds
  • the cladding is built up of a relatively hard material, use is advantageously made of the relatively favourable surface properties, viz. a low degree of skin damage as a result of the low adhesion to the skin. Moreover, the unfavourable properties as regards resilience are minimised by using a hard material for the cladding.
  • the terms "soft” and “hard” as used in the present description must be interpreted in relation to each other, in which connection it is in particular important that the material for the cladding is harder than the material that is used for the core.
  • the soft material for the core will have an elasticity modulus (according to ASTM D638) of maximally 500 MPa, preferably maximally 300 MPa.
  • the hard material for the cladding will have an elasticity modulus (according to ASTM D638) of minimally 500 MPa, preferably minimally 750 MPa.
  • the material for the cladding has preferably been selected from the group consisting of polyethylene compounds, polypropylene and fluor polymers or combinations thereof, wherein the polyethylene compounds have been selected from the group consisting of high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low-density polyethylene (LLDPE) and anhydride modified polyethylene compounds.
  • HDPE high density polyethylene
  • MDPE medium density polyethylene
  • LDPE low density polyethylene
  • LLDPE linear low-density polyethylene
  • anhydride modified polyethylene compounds anhydride modified polyethylene compounds.
  • the cladding of the artificial fibre is relatively thin, viz. the thickness of the cladding is such that its volume makes up 1-40%, preferably 1-20%, of the volume of the entire fibre.
  • the thickness of the cladding is such that its volume makes up 1-40%, preferably 1-20%, of the volume of the entire fibre.
  • the artificial grass according to the present invention is further characterized in that the artificial grass fibre has been obtained by means of a co- extrusion process, wherein the material for the core and the material for the cladding are extruded simultaneously, with the cladding being in direct contact with the core.
  • the material for the core is polyamide and the material for the cladding is an anhydride modified HDPE.
  • the material for the core is LDPE and the material for the cladding is HDPE.
  • the material for the core is moreover preferably a combination of polypropylene and SEBS and the material for the cladding is polypropylene.
  • Other preferred embodiments of the present artificial grass are characterized in that the material for the core is EVA and the material for the cladding is a fluor polymer, wherein the material for the core also contains polypropylene and/or polyethylene besides EVA and wherein polyvinylidene fluoride (PVDF) is used as the fluor polymer.
  • PVDF polyvinylidene fluoride
  • the present invention furthermore relates to an artificial lawn built up from an artificial grass as described above.
  • a mixture of, for example, polyamide, in particular polyamide 12, and a modified polyethylene can be used for the core.
  • Another suitable material for the core is a combination of LDPE and HDPE.
  • a compatibility agent has preferably been added to the material for the core and/or to the material for the cladding, or to both materials, which compatibility agent enhances the bond between the material for the core and the material for the cladding.
  • a suitable compatibility agent is a copolymer of ethylene and methyl acrylate, with the methyl acrylate content in particular amounting to less than 50%, preferably about 30%.
EP05825919A 2004-12-24 2005-12-22 Kunstgras aus kernmantelfasern sowie daraus gebildeter kunstrasen Not-in-force EP1828449B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1027878A NL1027878C2 (nl) 2004-12-24 2004-12-24 Kunstgras opgebouwd uit vezels die bestaan uit een kern en een mantel, alsmede een daaruit opgebouwd kunstgrasveld.
PCT/NL2005/000886 WO2006068476A1 (en) 2004-12-24 2005-12-22 Artificial grass built up of fibres that consist of a core and a cladding, as well as an artificial lawn built up therefrom

Publications (2)

Publication Number Publication Date
EP1828449A1 true EP1828449A1 (de) 2007-09-05
EP1828449B1 EP1828449B1 (de) 2013-02-13

Family

ID=34974694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05825919A Not-in-force EP1828449B1 (de) 2004-12-24 2005-12-22 Kunstgras aus kernmantelfasern sowie daraus gebildeter kunstrasen

Country Status (5)

Country Link
US (1) US20080280075A1 (de)
EP (1) EP1828449B1 (de)
NL (1) NL1027878C2 (de)
NO (1) NO338840B1 (de)
WO (1) WO2006068476A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1739233B1 (de) * 2003-05-28 2010-03-03 Lankhorst Pure Composites B.V. Garn für Kunstrasen, dieses enthaltende Bodenbedeckung und Spielfeld und Verfahren
DE502007002924D1 (de) 2007-04-19 2010-04-08 Motech Gmbh Technology & Syste Kunstrasen
EP1983103B1 (de) * 2007-04-19 2014-02-19 Reifenhäuser GmbH & Co. KG Maschinenfabrik Kunstrasen
NL1033949C2 (nl) * 2007-06-07 2008-12-09 Desseaux H Tapijtfab Kunstgras opgebouwd uit vezels die bestaan uit een kern en een mantel, alsmede een daaruit opgebouwd kunstgrasveld.
WO2010075098A1 (en) 2008-12-15 2010-07-01 Textile Management Associates, Inc. Method of recycling synthetic turf and infill product
US9005723B2 (en) 2010-11-09 2015-04-14 Tarkett Inc. Fiber for synthetic grass field
DE102012024685A1 (de) * 2012-12-18 2014-06-18 Gerhard Schramm Kunstrasen mit einem Garn
US20150204027A1 (en) * 2014-01-22 2015-07-23 Dow Global Technologies Llc Artificial turf filaments, and articles made therefrom
DK3122942T3 (en) * 2014-03-27 2018-02-19 Polytex Sportbelaege Produktions Gmbh ARTICLE GRASS AND MANUFACTURING PROCEDURE
EP3480361A1 (de) * 2017-11-03 2019-05-08 Polytex Sportbeläge Produktions-GmbH Kunstrasenfaser mit unrunder ummantelung
EP3480344A1 (de) 2017-11-03 2019-05-08 Polytex Sportbeläge Produktions-GmbH Herstellung einer kunstrasenfaser mit einer nichtrunden hülle
CN111395102B (zh) * 2020-02-24 2022-06-10 广州傲胜人造草股份有限公司 一种疏水运动型人造草坪

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US4230752A (en) * 1979-04-26 1980-10-28 Brunswick Corporation Cigarette burn proof artificial grass
JPS60231815A (ja) * 1984-04-28 1985-11-18 Kureha Chem Ind Co Ltd 弗化ビニリデン系樹脂モノフイラメントの製造方法
NL8602312A (nl) * 1986-09-12 1988-04-05 Nijverdal Ten Cate Textiel Werkwijze voor het vervaardigen van een kunstgrasmat en daarmee verkregen kunstgrasmat.
ES2151989T3 (es) * 1995-12-01 2001-01-16 Lankhorst Indutech Bv Hilo o cinta coextrusionada.
NL1006606C2 (nl) * 1997-07-17 1999-01-19 Desseaux H Tapijtfab Garen voor kunstgras, werkwijze voor het vervaardigen van het garen en kunstgrasveld waarin dat garen is verwerkt.
US20020091011A1 (en) * 2000-11-29 2002-07-11 Sosin Howard B. Impact and roll measurement device
CN1319730C (zh) * 2001-07-19 2007-06-06 兰克霍斯特茵德泰克股份有限公司 聚烯烃薄膜、带或纱
JP2003342848A (ja) * 2002-05-23 2003-12-03 Hagihara Industries Inc 多目的グラウンド向け人工芝用パイルヤーン
EP1378592A1 (de) * 2002-07-01 2004-01-07 Ten Cate Thiolon B.V. Kunstfaser und daraus hergestellter Kunstrasen
EP1739233B1 (de) * 2003-05-28 2010-03-03 Lankhorst Pure Composites B.V. Garn für Kunstrasen, dieses enthaltende Bodenbedeckung und Spielfeld und Verfahren
JP2008517801A (ja) * 2004-10-22 2008-05-29 ダウ グローバル テクノロジーズ インコーポレイティド プラスチック強化複合材料造形製品を製造する装置及びプロセス
GB0427829D0 (en) * 2004-12-20 2005-01-19 Solvay Polyethylene composition for artificial turf
ES2315830T3 (es) * 2005-12-30 2009-04-01 Mondo S.P.A. Procedimiento para producir un hilo para cesped sintetico y estructura de cesped sintetico producida utilizando dicho hilo.
DE602006013124D1 (de) * 2006-08-18 2010-05-06 Mondo Spa Garn für Kunstrasen, Düse und Verfahren zu seiner Herstellung, Benützung und Kunstrasen die diese Garn enthalten
PT1892331E (pt) * 2006-08-18 2012-06-18 Mondo Spa Tapete de relva sintética e processo do respectivo fabrico
PT2011919E (pt) * 2007-07-06 2014-07-16 Mondo Spa Material para revestimentos de solos e processos de fabrico

Non-Patent Citations (1)

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Title
See references of WO2006068476A1 *

Also Published As

Publication number Publication date
NO20073597L (no) 2007-09-20
WO2006068476A1 (en) 2006-06-29
NO338840B1 (no) 2016-10-24
EP1828449B1 (de) 2013-02-13
NL1027878C2 (nl) 2006-06-27
US20080280075A1 (en) 2008-11-13
WO2006068476A8 (en) 2017-01-19

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