EP0996781B2 - Garn für kunstrasen, verfahren zu seiner hertstellung und aus diesem garn hergestellte kunstrasenfeld - Google Patents

Garn für kunstrasen, verfahren zu seiner hertstellung und aus diesem garn hergestellte kunstrasenfeld Download PDF

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Publication number
EP0996781B2
EP0996781B2 EP98935399A EP98935399A EP0996781B2 EP 0996781 B2 EP0996781 B2 EP 0996781B2 EP 98935399 A EP98935399 A EP 98935399A EP 98935399 A EP98935399 A EP 98935399A EP 0996781 B2 EP0996781 B2 EP 0996781B2
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EP
European Patent Office
Prior art keywords
yarn
polyamide
polypropylene
artificial grass
block copolymer
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.)
Expired - Lifetime
Application number
EP98935399A
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English (en)
French (fr)
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EP0996781A1 (de
EP0996781B1 (de
Inventor
Jan Frans Marie Geerts
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
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Application filed by Tapijtfabriek H Desseaux NV filed Critical Tapijtfabriek H Desseaux NV
Priority to DE69808917T priority Critical patent/DE69808917T3/de
Publication of EP0996781A1 publication Critical patent/EP0996781A1/de
Application granted granted Critical
Publication of EP0996781B1 publication Critical patent/EP0996781B1/de
Publication of EP0996781B2 publication Critical patent/EP0996781B2/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/445—Yarns or threads for use in floor fabrics
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • 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
    • 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
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • 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

  • a yarn for artificial grass a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated.
  • the invention relates to a yarn containing polyamide for producing artificial grass.
  • the invention furthermore relates to a method of manufacturing said yarn and to a field of artificial grass in which said yarn is incorporated.
  • Such a yarn for a field of artificical grass is known from Japanese patent publication JP 7048778A .
  • the field of artificial grass is obtained by intertwining polyamide fibre and PE fibre in a base layer. More in particular, the method comprises the provision in a base layer, in a pile length of 25 mm, of a yarn by twisting split yarn made of 5000d polyamide and split yarn made of 5000d high density PE.
  • Such a yarn is also known from Japanese patent publication JP 09119036A , wherein a yarn for artificial turf pile is formed by melt-spinning a polyamide resin composition comprising 70 - 99 % by weight of a polyamide resin and 1 - 30 % by weight of a polyethylene resin.
  • a yarn is furthermore known which is used for making artificial grass, which yarn is manufactured of polypropylene or of a block copolymer of polypropylene and polyethylene.
  • the yarn according to the invention is characterized in that the yarn, in addtion to polyamide, also contains a polyolefin compound in which said polyolefin compound is a block copolymer of polypropylene and polyethylene.
  • a block copolymer of polypropylene and polyethylene is used.
  • a particularly suitable block copolymer is the polypropylene/polyethylene block copolymer as described in European patent application No. 0 359 321 , which block copolymer is marketed by Solvay, Belgium with a melt flow index of about 4.
  • Such a preferred yarn is preferably composed of 20 - 80 % by weight of block copolymer of polypropylene and polyethylene, and 20 - 80 % by weight of polyamide.
  • JP-A-3,279,419 discloses a fibre which consists of Nylon which is mixed with polypropylene. Said fibre has been used for making clothes. Said Japanese patent publication does not describe the use of such a mixture of polymers for manufacturing artificial grass.
  • US patent No. 5,597,650 discloses a carpet yarn having special properties as regards flame retardation and resistance to stains.
  • Said yarn consists of a polyolefin matrix, preferably polypropylene, in which smaller polyamide fibrils are embedded.
  • Said US patent does not describe the use of such a yarn for manufacturing artificial grass.
  • the polymer is extruded to form monofilaments, which are subsequently processed into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn.
  • This method is characterized in that monofilaments are extruded from a block copolymer of polypropylene and polyethylene, and that monofilaments are extruded from polyamide, or in that monofilaments are extruded from a mixture of a block copolymer of polypropylene and polyethylene on the one hand and polyamide on the other hand.
  • the core is built up of a block copolymer of polypropylene and polyethylene
  • the cladding is built up of polyamide.
  • the present invention is not limited to the use of monofilaments, and in a special embodiment it is preferred to use the yarns of fibrillated yarn of the block copolymer of polyethylene and polypropylene, on the one hand and a yarn of fibrillated polyamide yarn on the other hand.
  • the method of producing fibrillated yarn is described in European patent application No. 0 263 566.
  • a foil is made from a polymer which, in addition to polyamide, also contains a polyolefin compound wherein said polyolefin compound is a block copolymer of polypropylene and polyethylene, which foil is cut into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn.
  • a foil is also possible on the one hand to make a foil from a block copolymer of polypropylene and polyethylene and on the other hand to make a foil from polyamide, after which the bands obtained from said two foils may be processed to form said composite yarn.
  • a combination of mono-filaments and fibrillated yarns, preferably monofilaments of polyamide and fibrillated yarn of the block copolymer of polypropylene and polyethylene, is also suitable for manufacturing the composite yarn.
  • Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained.
  • a method as indicated in example 1 of EP-A-0 648 868 was thereby used for the block copolymer.
  • the bands were processed to form a yarn, thus producing the block copolymer of polyethylene and polypropylene yarn consisting of four non-twisted bands each having a yarn number of 1100 dtex on the one hand and a polyamide yarn consisting of non-twisted bands each having a yarn number of 666 dtex on the other hand.
  • Said two yarn types were twined to form a composite yarn having a yarn number of 8400 dtex.
  • Said composite yarn was then knitted and fixed so as to obtain a teasing effect, after which the teased composite yarn was used for obtaining a carpet for artificial grass.
  • the yarn was tufted with 300 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m 2 .
  • the carpet thus obtained was subjected to various tests in order to determine the mechanical properties, such as the tretrad test for determining the fibrillation, the Taber test for determining the weight loss and the Leroux test for determining the sliding properties.
  • Table A Block copolymer of polypropylene and polyethylene Polyamide Composite yarn of polyamide and block copolymer of polypropylene and polyethylene tretrad post-fibrillation no post-fibrillation no post-fibrillation Taber (g/m 2 ) loss 2000 t 0.38 0.56 0.32 5000 t 0.93 1.49 0.76 sliding Leroux dry 0.790 0.760 0.772 wet 0.537 0.440 z 0.390
  • burn tests in accordance with BS 4790 show a low value for the artificial grass according to the invention, which value is comparable with that of artificial grass made from polyamide, but which is better than that of artificial grass made from polypropylene-containing polymer.
  • the artificial grass was manufactured in the same manner as in Example 1.
  • a field of artificial grass scattered in with sand was composed, to which end the yarn was tufted with 140 stitches per running metre and a pile height of 34 mm, as a result of which a pile insert weight of 970 g/m 2 was obtained.
  • the carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass scattered in with sand, the mechanical properties of the yarn composed of the block copolymer of polyethylene and polypropylene and polyamide were much better than those of yarns for fields of artificial grass which were made from polypropylene and from polyamide.
  • Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained.
  • a method as indicated in example 1 of EP-A-0 648 868 was thereby used for the block copolymer, so as to obtain a block copolymer having a yarn number of 8800 dtex consisting of 8 bands, each having a yarn number of 1100 dtex.
  • the block copolymer yarn was preferably threaded on the uneven positions on the creel of the tufting machines, whilst the polyamid yarn was threaded on the even positions. It is also possible, however, to use other position settings.
  • the carpet for artificial grass which was built up of separate yarns of block copolymer and polyamide, was tufted with 310 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m 2 .
  • the carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass, whether or not scattered in with sand, the mechanical properties of the field of artificial grass made from the block copolymer of polyethylene and polypropylene and polyamide were much better than those of fields of artificial grass made from polypropylene and from polyamide.

Claims (11)

  1. Polyamid enthaltendes Garn zum Herstellen von Kunstrasen, welches zusätzlich zu Polyamid ferner eine Polyolefinverbindung enthält, dadurch gekennzeichnet, dass die Polyolefinverbindung ein Blockcopolymer aus Polypropylen und Polyethylen ist.
  2. Garn nach Anspruch 1, dadurch gekennzeichnet, dass das Garn 20 - 80 Gew.-% eines Blockcopolymers aus Polypropylen und Polyethylen und 20 - 80 Gew.-% Polyamid enthält.
  3. Verfahren zum Herstellen eines Garns nach den Ansprüchen 1 - 2 durch Extrudieren eines Polymers zum Bilden von Monofilamenten, die nachfolgend zu Bändern verarbeitet werden, wobei mehrere Bänder zum Bilden eines Garns zusammengedreht werden, dadurch gekennzeichnet, dass Monofilamente aus einem Blockcopolymer aus Polypropylen und Polyethylen, und aus Polyamid extrudiert werden oder dass Monofilamente aus einem Gemisch aus einem Blockcopolymer aus Polypropylen und Polyethylen auf der einen Seite sowie Polyamid auf der anderen Seite extrudiert werden.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass ein Garn aus dem Blockcopolymer aus Polypropylen und Polyethylen hergestellt wird und dass ein Garn aus Polyamid hergestellt wird, woraufhin das Verbundgarn aus den zwei Garnen des Blockcopolymers aus Polyethylen/Polypropylen und des Polyamids hergestellt wird, wonach Kunstrasenfasern aus dem Verbundgarn hergestellt werden.
  5. Verfahren zum Herstellen eines Garns nach den Ansprüchen 1 - 2, wobei mit einer Folie gestartet wird, welche in Bänder geschnitten wird und mehrere Bänder zum Bilden eines Garns zusammengedreht werden, dadurch gekennzeichnet, dass eine Folie aus einem Polymer hergestellt wird, das zusätzlich zu Polyamid ein Blockcopolymer aus Polypropylen und Polyethylen enthält, oder dass auf der einen Seite eine Folie aus einem Blockcopolymer aus Polypropylen und Polyethylen hergestellt wird und dass auf der anderen Seite eine Folie aus Polyamid hergestellt wird, wonach die aus den beiden Folien erhaltenen Bänder zum Bilden des Verbundgarns verarbeitet werden können.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass ein Garn aus dem Blockcopolymer aus Polypropylen und Polyethylen hergestellt wird und dass ein Garn aus Polyamid hergestellt wird, woraufhin Kunstrasenfasern aus dem Verbundgarn hergestellt werden, das aus den beiden Garnen erhalten wird.
  7. Verfahren zum Herstellen von Garnen gemäß den Ansprüchen 1 - 2, dadurch gekennzeichnet, dass das Garn durch Coextrusion erhalten wird, wobei die Hülle aus Polyamid besteht und wobei der Kern aus einem Blockcopolymer aus Polypropylen und Polyethylen besteht.
  8. Aus Kunstrasenfasern hergestelltes Kunstrasenfeld, dadurch gekennzeichnet, dass die Kunstrasenfasern aus einem Garn gemäß den Ansprüchen 1 - 2 hergestellt werden.
  9. Kunstrasenfeld nach Anspruch 8, dadurch gekennzeichnet, dass die Kunstrasenfasern aus einem Verbundgarn erhalten worden sind, welches aus dem Polyamidgarn, das gemäß dem Verfahren nach den Ansprüchen 3 - 4 hergestellt wird, und aus dem Garn des Blockcopolymers aus Polypropylen und Polyethylen besteht, welches gemäß dem Verfahren nach den Ansprüchen 5 - 6 hergestellt wird.
  10. Kunstrasenfeld nach Anspruch 8, dadurch gekennzeichnet, dass die Kunstrasenfasern aus dem Polyamidgarn, das gemäß dem Verfahren nach den Ansprüchen 3 - 4 hergestellt wird, und aus dem Garn des Blockcopolymers aus Polypropylen und Polyethylen erhalten worden sind, das gemäß dem Verfahren nach den Ansprüchen 5 - 6 hergestellt wird.
  11. Kunstrasenfeld nach den Ansprüchen 8 - 10, dadurch gekennzeichnet, dass das Feld ein Kunstrasenfeld ist, in das Sand eingestreut ist.
EP98935399A 1997-07-17 1998-07-16 Garn für kunstrasen, verfahren zu seiner hertstellung und aus diesem garn hergestellte kunstrasenfeld Expired - Lifetime EP0996781B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE69808917T DE69808917T3 (de) 1997-07-17 1998-07-16 Garn für kunstrasen, verfahren zu seiner hertstellung und aus diesem garn hergestellte kunstrasenfeld

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1006606A NL1006606C2 (nl) 1997-07-17 1997-07-17 Garen voor kunstgras, werkwijze voor het vervaardigen van het garen en kunstgrasveld waarin dat garen is verwerkt.
NL1006606 1997-07-17
PCT/NL1998/000413 WO1999004074A1 (en) 1997-07-17 1998-07-16 A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated

Publications (3)

Publication Number Publication Date
EP0996781A1 EP0996781A1 (de) 2000-05-03
EP0996781B1 EP0996781B1 (de) 2002-10-23
EP0996781B2 true EP0996781B2 (de) 2011-12-21

Family

ID=19765374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98935399A Expired - Lifetime EP0996781B2 (de) 1997-07-17 1998-07-16 Garn für kunstrasen, verfahren zu seiner hertstellung und aus diesem garn hergestellte kunstrasenfeld

Country Status (8)

Country Link
EP (1) EP0996781B2 (de)
AT (1) ATE226652T1 (de)
AU (1) AU743445B2 (de)
DE (1) DE69808917T3 (de)
ES (1) ES2187985T5 (de)
NL (1) NL1006606C2 (de)
NZ (1) NZ502027A (de)
WO (1) WO1999004074A1 (de)

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US6344026B1 (en) 1998-04-08 2002-02-05 Senorx, Inc. Tissue specimen encapsulation device and method thereof
EP1457600A1 (de) 2003-03-05 2004-09-15 Domo Cabrita Kunstrasen
ATE459758T1 (de) 2003-05-28 2010-03-15 Lankhorst Pure Composites Bv Garn für kunstrasen, dieses enthaltende bodenbedeckung und spielfeld und verfahren
NL1026239C2 (nl) 2004-05-19 2005-11-22 Ten Cate Thiolon Bv Werkwijze voor het vervaardigen van een kunststofvezel voor toepassing in een kunstgrassportveld alsmede een dergelijke kunststofvezel.
NL1027878C2 (nl) * 2004-12-24 2006-06-27 Desseaux H Tapijtfab Kunstgras opgebouwd uit vezels die bestaan uit een kern en een mantel, alsmede een daaruit opgebouwd kunstgrasveld.
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.
NL1035682C2 (nl) 2008-07-10 2010-01-12 Desseaux H Tapijtfab Kunstgrasveld.
WO2010075098A1 (en) 2008-12-15 2010-07-01 Textile Management Associates, Inc. Method of recycling synthetic turf and infill product
EP2406417B1 (de) 2009-03-12 2012-12-05 Oerlikon Textile GmbH & Co. KG Verfahren und vorrichtung zur herstellung eines grasgarnes
EP2374917B1 (de) * 2010-04-07 2013-02-13 Dow Global Technologies LLC Kunstrasengarn
CN103906866A (zh) 2011-10-20 2014-07-02 塔克特公司 用于制造人造草皮纤维的方法
NL2014906B1 (nl) 2015-06-02 2017-01-31 Desso Sports B V Werkwijze voor het in een ondergrond aanbrengen van vezels.
CN113278217A (zh) * 2021-05-06 2021-08-20 淮安腾达色母有限公司 一种柔韧耐磨损人造带筋草坪丝及其制备方法

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AU8466198A (en) 1999-02-10
NZ502027A (en) 2000-10-27
AU743445B2 (en) 2002-01-24
EP0996781A1 (de) 2000-05-03
ES2187985T3 (es) 2003-06-16
NL1006606C2 (nl) 1999-01-19
DE69808917D1 (de) 2002-11-28
WO1999004074A1 (en) 1999-01-28
DE69808917T3 (de) 2012-07-26
ATE226652T1 (de) 2002-11-15
ES2187985T5 (es) 2012-04-26
DE69808917T2 (de) 2003-06-18
EP0996781B1 (de) 2002-10-23

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