WO2006068476A1 - Artificial grass built up of fibres that consist of a core and a cladding, as well as an artificial lawn built up therefrom - Google Patents
Artificial grass built up of fibres that consist of a core and a cladding, as well as an artificial lawn built up therefrom Download PDFInfo
- Publication number
- WO2006068476A1 WO2006068476A1 PCT/NL2005/000886 NL2005000886W WO2006068476A1 WO 2006068476 A1 WO2006068476 A1 WO 2006068476A1 NL 2005000886 W NL2005000886 W NL 2005000886W WO 2006068476 A1 WO2006068476 A1 WO 2006068476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cladding
- core
- artificial grass
- grass according
- artificial
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- 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
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%.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Multicomponent Fibers (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05825919A EP1828449B1 (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 therefrom |
US11/722,638 US20080280075A1 (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 |
NO20073597A NO338840B1 (en) | 2004-12-24 | 2007-07-12 | Artificial grass made up of fibers consisting of a core and a sheath, as well as an artificial lawn made up of this |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1027878A NL1027878C2 (en) | 2004-12-24 | 2004-12-24 | Artificial grass constructed from fibers consisting of a core and a mantle, as well as an artificial grass field built from it. |
NL1027878 | 2004-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006068476A1 true WO2006068476A1 (en) | 2006-06-29 |
WO2006068476A8 WO2006068476A8 (en) | 2017-01-19 |
Family
ID=34974694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080280075A1 (en) |
EP (1) | EP1828449B1 (en) |
NL (1) | NL1027878C2 (en) |
NO (1) | NO338840B1 (en) |
WO (1) | WO2006068476A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1983103A1 (en) * | 2007-04-19 | 2008-10-22 | Motech GmbH Technology & Systems | Synthetic turf |
EP1983104A1 (en) * | 2007-04-19 | 2008-10-22 | Motech GmbH Technology & Systems | Synthetic turf |
NL1033949C2 (en) * | 2007-06-07 | 2008-12-09 | Desseaux H Tapijtfab | Artificial grass constructed from fibers consisting of a core and a mantle, as well as an artificial grass field built from it. |
WO2015112434A1 (en) * | 2014-01-22 | 2015-07-30 | Dow Global Technologies Llc | Artificial turf filaments, and articles made therefrom |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2339692T3 (en) * | 2003-05-28 | 2010-05-24 | Lankhorst Pure Composites B.V. | THREAD FOR AN ARTIFICIAL LAWN COATING, ARTIFICIAL LAWN COATING, AND GAME FIELD THAT INCLUDES SUCH THREAD. |
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 (en) * | 2012-12-18 | 2014-06-18 | Gerhard Schramm | Artificial turf has a yarn comprising thermoplastic elastomer, where yarn has polyurethane, particularly thermoplastic polyurethane, where yarn has fiber with thirty percent to seventy percent polyethylene |
WO2015144223A1 (en) * | 2014-03-27 | 2015-10-01 | Polytex Sportbeläge Produktions-Gmbh | Artificial turf and production method |
EP3480344A1 (en) | 2017-11-03 | 2019-05-08 | Polytex Sportbeläge Produktions-GmbH | Production of an artificial turf fiber with a non-circular cladding |
EP3480361A1 (en) * | 2017-11-03 | 2019-05-08 | Polytex Sportbeläge Produktions-GmbH | Artificial turf fiber with a non-circular cladding |
CN111395102B (en) * | 2020-02-24 | 2022-06-10 | 广州傲胜人造草股份有限公司 | Hydrophobic sports artificial turf |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230752A (en) * | 1979-04-26 | 1980-10-28 | Brunswick Corporation | Cigarette burn proof artificial grass |
US4629654A (en) * | 1984-04-28 | 1986-12-16 | Kureha Kagaku Kogyo Kabushiki Kaisha | Vinylidene fluoride resin monofilament and process for producing the same |
EP0259940A2 (en) * | 1986-09-12 | 1988-03-16 | Koninklijke Nijverdal-Ten Cate N.V. | Method of manufacturing an artificial grass and an artificial grass obtained therewith |
WO1999004074A1 (en) * | 1997-07-17 | 1999-01-28 | Tapijtfabriek H. Desseaux N.V. | A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated |
JP2003342848A (en) * | 2002-05-23 | 2003-12-03 | Hagihara Industries Inc | Pile yarn for artificial turf intended for multi-purpose ground |
WO2004106601A1 (en) * | 2003-05-28 | 2004-12-09 | Lankhorst Indutech B.V. | Yarn for an artificial turf ground cover, artificial turf ground cover and playing field including such a yarn and method for producing such a yarn |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE195460T1 (en) * | 1995-12-01 | 2000-09-15 | Lankhorst Indutech Bv | COEXTRUDED THREAD OR TAPE |
US20020091011A1 (en) * | 2000-11-29 | 2002-07-11 | Sosin Howard B. | Impact and roll measurement device |
AU2002318061B2 (en) * | 2001-07-19 | 2008-03-20 | Lankhorst Indutech B.V. | Polyolefin film, tape or yarn |
EP1378592A1 (en) * | 2002-07-01 | 2004-01-07 | Ten Cate Thiolon B.V. | Artificial fibre as well as an artificial lawn for sports fields provided with such fibre |
WO2006091245A2 (en) * | 2004-10-22 | 2006-08-31 | Dow Global Technologies Inc. | Plastic composite articles and methods of making same |
GB0427829D0 (en) * | 2004-12-20 | 2005-01-19 | Solvay | Polyethylene composition for artificial turf |
DK1803841T3 (en) * | 2005-12-30 | 2009-02-16 | Mondo Spa | A method of making an artificial grass thread and artificial grass structure made using such a thread |
DE602006013124D1 (en) * | 2006-08-18 | 2010-05-06 | Mondo Spa | Artificial turf yarn, nozzle and process for its production, use and artificial turf containing this yarn |
ATE548511T1 (en) * | 2006-08-18 | 2012-03-15 | Mondo Spa | ARTIFICIAL GRASS AND METHOD FOR PRODUCING IT |
ES2473601T3 (en) * | 2007-07-06 | 2014-07-07 | Mondo S.P.A. | Floor covering material and manufacturing procedures |
-
2004
- 2004-12-24 NL NL1027878A patent/NL1027878C2/en not_active IP Right Cessation
-
2005
- 2005-12-22 EP EP05825919A patent/EP1828449B1/en not_active Not-in-force
- 2005-12-22 WO PCT/NL2005/000886 patent/WO2006068476A1/en active Application Filing
- 2005-12-22 US US11/722,638 patent/US20080280075A1/en not_active Abandoned
-
2007
- 2007-07-12 NO NO20073597A patent/NO338840B1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230752A (en) * | 1979-04-26 | 1980-10-28 | Brunswick Corporation | Cigarette burn proof artificial grass |
US4629654A (en) * | 1984-04-28 | 1986-12-16 | Kureha Kagaku Kogyo Kabushiki Kaisha | Vinylidene fluoride resin monofilament and process for producing the same |
EP0259940A2 (en) * | 1986-09-12 | 1988-03-16 | Koninklijke Nijverdal-Ten Cate N.V. | Method of manufacturing an artificial grass and an artificial grass obtained therewith |
WO1999004074A1 (en) * | 1997-07-17 | 1999-01-28 | Tapijtfabriek H. Desseaux N.V. | A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated |
JP2003342848A (en) * | 2002-05-23 | 2003-12-03 | Hagihara Industries Inc | Pile yarn for artificial turf intended for multi-purpose ground |
WO2004106601A1 (en) * | 2003-05-28 | 2004-12-09 | Lankhorst Indutech B.V. | Yarn for an artificial turf ground cover, artificial turf ground cover and playing field including such a yarn and method for producing such a yarn |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1983103A1 (en) * | 2007-04-19 | 2008-10-22 | Motech GmbH Technology & Systems | Synthetic turf |
EP1983104A1 (en) * | 2007-04-19 | 2008-10-22 | Motech GmbH Technology & Systems | Synthetic turf |
US9315954B2 (en) | 2007-04-19 | 2016-04-19 | Reifenhaeuser Gmbh & Co.Kg Maschinenfabrik | Artificial turf |
NL1033949C2 (en) * | 2007-06-07 | 2008-12-09 | Desseaux H Tapijtfab | Artificial grass constructed from fibers consisting of a core and a mantle, as well as an artificial grass field built from it. |
WO2008150156A1 (en) * | 2007-06-07 | 2008-12-11 | Tapijtfabriek H. Desseaux N.V. | Artificial grass composed of fibres comprising of a core and a cladding, as well as an artificial lawn made up thereof |
WO2015112434A1 (en) * | 2014-01-22 | 2015-07-30 | Dow Global Technologies Llc | Artificial turf filaments, and articles made therefrom |
Also Published As
Publication number | Publication date |
---|---|
EP1828449A1 (en) | 2007-09-05 |
NO338840B1 (en) | 2016-10-24 |
NO20073597L (en) | 2007-09-20 |
WO2006068476A8 (en) | 2017-01-19 |
EP1828449B1 (en) | 2013-02-13 |
NL1027878C2 (en) | 2006-06-27 |
US20080280075A1 (en) | 2008-11-13 |
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