EP2395135B1 - Fibre synthétique pour un revêtement de pelouse artificielle - Google Patents

Fibre synthétique pour un revêtement de pelouse artificielle Download PDF

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Publication number
EP2395135B1
EP2395135B1 EP20100004948 EP10004948A EP2395135B1 EP 2395135 B1 EP2395135 B1 EP 2395135B1 EP 20100004948 EP20100004948 EP 20100004948 EP 10004948 A EP10004948 A EP 10004948A EP 2395135 B1 EP2395135 B1 EP 2395135B1
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EP
European Patent Office
Prior art keywords
artificial turf
pile
synthetic
pile threads
turf surface
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.)
Active
Application number
EP20100004948
Other languages
German (de)
English (en)
Other versions
EP2395135A1 (fr
Inventor
Rudolf Hufenus
Marcel Halbeisen
Martin Camenzind
Christian Affolter
Adriaan Spierings
Kaspar Zogg
Andreas Tischhauser
Gerhard Schramm
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.)
Tiara-Teppichboden AG
Original Assignee
Tiara-Teppichboden AG
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 Tiara-Teppichboden AG filed Critical Tiara-Teppichboden AG
Priority to ES12005285T priority Critical patent/ES2452523T3/es
Priority to EP20100004948 priority patent/EP2395135B1/fr
Priority to EP12005285.7A priority patent/EP2520696B1/fr
Priority to ES10004948T priority patent/ES2391253T3/es
Publication of EP2395135A1 publication Critical patent/EP2395135A1/fr
Application granted granted Critical
Publication of EP2395135B1 publication Critical patent/EP2395135B1/fr
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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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/36—Matrix structure; Spinnerette packs therefor
    • 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

Definitions

  • the present invention relates to a plastic fiber for an artificial turf.
  • the invention further relates to an artificial turf flooring and its use for a sports field or playground, in particular a football field.
  • Artificial grass is often used as an alternative to a natural lawn, especially on sports grounds and playgrounds. Compared to the latter, artificial turfs have the advantage that they have a higher load capacity and are relatively easy to care for. In addition, they are well playable compared to a natural lawn even in bad weather.
  • Corresponding artificial turf coverings comprise a turf formed by plastic pile threads which are mounted on a support.
  • pile threads made of skin-friendly polyethylene are used, which minimizes the risk of skin burns.
  • polyethylene pile yarns in particular have the disadvantage that they have a relatively weak
  • EP-A-2 161 374 discloses according to which a plurality of stalks fixed to a base layer and a damping material arranged between the stalks is provided and the stalks are made for the most part of a polyester of terephthalic acid from waste materials.
  • Object of the present invention is therefore to provide a natural grass blade as similar as possible plastic fiber for an artificial turf covering which, while maintaining the surface properties - especially the skin compatibility - known plastic fibers has a high resilience.
  • a further object of the present invention is to provide an artificial turf covering which, even under prolonged stressing, ensures constant, optimum spillover and which is very close to optically natural turf.
  • the present invention thus relates to a plastic fiber for an artificial turf.
  • the plastic fiber comprises a first plastic component and one in the first Plastic component embedded second plastic component.
  • the second plastic component has a higher resilience than the first plastic component and is in the form of at least two runs in the longitudinal direction of the plastic fiber strands. These generally run parallel to one another and are arranged in cross-section at least approximately along a straight line.
  • the resilience of the plastic fiber is increased overall; the strands of the second plastic component thus serve as a kind of "reinforcing strands" for the plastic fiber.
  • recovery is well known to those skilled in the art and refers to the ability of the plastic component or plastic fiber, after release of a force acting thereon, to retain the original, i. before or after the action of force completely or partially resume this form.
  • an increased resilience is due to an increased rigidity of the material.
  • a plastic fiber having a high recovery capability can be obtained without impairing the surface properties ensured by the first plastic component, and in particular its skin compatibility.
  • the present invention allows two previously incompatible preferred properties of the plastic fiber, namely a good skin compatibility and a high resilience to combine with each other.
  • the plastic fiber of the present invention makes it possible to provide an artificial turf covering which constantly ensures optimum playability even under prolonged stress.
  • a crop density can be selected which is relatively low and thus approximated to the crop density of a natural grass, without the pile yarns forming the grass pile remaining under heavy use of the artificial grass and thus impairing the sport-functional properties.
  • it is achieved by the invention according to the reduction in Halm convince that the artificial turf covering both a visual nature and in terms of ball rolling or ball rebound properties can be adjusted to a natural grass.
  • the plastic fiber of the present invention is generally designed as a monofilament.
  • the dimensions of the plastic fiber usually correspond essentially to those of natural blades of grass;
  • the yarn count of the individual monofilaments is in the range of about 1'400 to 2'400 dtex.
  • the first plastic component comprises a polyolefin.
  • the polyolefin is polyethylene and / or polypropylene, more preferably polyethylene. Said polyolefins, and in particular polyethylene, are particularly skin-friendly, so that skin burning can be effectively avoided even if the user glides over the turf at a relatively high speed, which is very often the case in football in particular.
  • the second plastic component comprises a polyamide. This has a very high resilience and is also preferred because of its very easy availability.
  • the number of strands of the second plastic component is 2 to 10, preferably 2 to 7, most preferably 5.
  • the bending behavior of the plastic fiber can be additionally optimized.
  • a brush type is not present or within an acceptable range if, according to the invention, the strands of the second plastic component are arranged in cross-section at least approximately along a straight line. This ensures a degree of resilience with sufficient resilience of the plastic fiber, which also contributes to an optimized playability of the lawn.
  • the plastic fiber has in cross-section a shape with a first axis of symmetry and a second axis of symmetry perpendicular to the first axis of symmetry, wherein the extent in the direction of the second axis of symmetry is less than the extent in the direction of the first axis of symmetry. It is particularly preferred in terms of optimum bending behavior that the strands of the second plastic component are arranged at least approximately along the first axis of symmetry.
  • the plastic fiber in cross section has the shape of a diamond with rounded corners.
  • edges and thinnings are avoided, which in addition to a high. Wear resistance of the plastic fiber contributes.
  • the described shape of the natural shape of a grass blade comes very close, which in the end further contributes to the fact that a corresponding artificial turf covering looks very similar to a natural turf.
  • the plastic fiber according to the present invention is usually produced by extrusion.
  • the first plastic component is extruded simultaneously with the second plastic component, wherein a spinneret is used, which has a first opening for the first plastic component and a respective further opening for each strand of the second plastic component. Since the melting points of the first and the second plastic component generally differ from one another, the corresponding openings are generally tempered differently.
  • a spinneret which has a spinning opening with rhombus-shaped ("diamond" -shaped) cross-section for the first plastic component, in which further spinning openings with a circular cross-section are arranged for the second plastic component.
  • a plastic fiber may be obtained, which has the shape of a rhombus with selectru walls th corners in cross section.
  • such plastic fibers have particularly advantageous properties, in particular high wear resistance.
  • the invention further relates to an artificial turf covering comprising a flat carrier and a Nutzflor which is formed from bonded to the carrier pile threads.
  • the pile threads are at least partially formed of a plastic fiber as described above.
  • the artificial turf can be a relative have low and a natural grass approximated Halm Notice, - without the pile threads would also lie under heavy load.
  • the ball roll behavior and ball rebound behavior can be matched to that on a natural turf and thus improved by the increased resilience of the plastic fiber according to the invention or the attainable reduction of the stem density.
  • the plastic fiber according to the invention which is particularly in the amateur field in terms of good playability of the artificial turf.
  • the amount of material needed for the crop can be reduced which, on the one hand, contributes to a reduction in weight and thus to a simplified transportability of the artificial turf and, on the other hand, makes it possible to reduce the material costs.
  • a high grip of the lawn can be ensured by the increased resilience and the resulting reduction in Halm Notice.
  • the artificial turf covering has a base layer of polyamide fibers, as is the case with the Triple T Technology TM synthetic turf specifically designed for use as football turf.
  • the inventive plastic fiber in such an artificial turf covering can be ensured due to the increased resilience or the achievable reduction in Halm Notice that the cams or nubs of football boots optimally engage in the base layer, allowing faster and more powerful direction changes of the user or the football player allowed.
  • a base layer of polyamide fibers is also preferred because water is incorporated therein. On evaporation, this cools the utility pile of the synthetic turf, further minimizing the risk of major burns.
  • the polyamide fibers are crimped and thereby form a moss-like layer, a nearly optimal water storage is ensured by the base layer.
  • the pile threads are typically introduced by tufting in the carrier.
  • the pile threads are fixed by means of an applied on the underside of the carrier adhesive, such as water-resistant latex on the support.
  • the straw group of the pile threads introduced in the tufting process are preferably wound around by a polyamide monofilament, whereby an additional anchoring of the pile threads is ensured.
  • the artificial turf covering of the present invention is visually very close to a natural turf especially if the length of the pile tufts of the utility tuft is from the top of the trough measured in the range of about 2.5 to 4 cm.
  • a first part of the pile threads of the utility pile be measured longer from the upper side of the support than a second part of the pile threads of the utility pile.
  • the shorter pile threads of the utility pile mimic the regrowing blades of a natural grass.
  • further preferred ball roll and ball rebound properties result.
  • the pile threads of the first part be longer by about 5 to 10 mm than the pile threads of the second part.
  • the Nutzflor on its side facing away from the carrier has a density of less than 1'400 pile threads per square decimeter, which is almost optimal optically Characteristics and excellent playability of the synthetic turf guaranteed.
  • the density of this preferred embodiment is thus considerably lower than the density of 3,000 to 6,000 pile threads per square decimeter, which is usually necessary for known synthetic turf coverings.
  • the artificial turf flooring of the present invention can be used for both unfilled systems, such as in the EP-A-1696077 described for filled systems, such as in the US 2001/0033902 described or for so-called hybrid systems, ie systems which have only a plastic granulate layer, such as in the European patent application no. 09014780 described, are used. Since the advantages of the present invention become particularly apparent in unfilled systems, the artificial turf covering is preferably unfilled.
  • FIG. 1 The invention is based on the appended FIG. 1 further illustrated. This represents purely schematically a cross-sectional view of a plastic fiber according to the invention.
  • the plastic fiber 2 shown in the figure has in cross-section substantially the shape of a rhombus with rounded corners.
  • the rhombus defines a first Symmetry axis, cross-sectional major axis A, and a right angle thereto extending second axis of symmetry, cross-sectional secondary axis B.
  • the expansion in the direction of the cross-sectional secondary axis B is less than the extension in the direction of the cross-sectional major axis A.
  • the plastic fiber 2 comprises a first plastic component 4 and a second plastic component 6 embedded in the first plastic component, wherein the second plastic component has a higher resilience than the first plastic components.
  • the first plastic component comprises a polyolefin and the second plastic component comprises a polyamide.
  • the second plastic component 6 is in the form of five strands 8a, 8b, 8c, 8d, 8e extending in the longitudinal direction of the plastic fiber.
  • the strands 8a-8e have a substantially circular shape in cross-section and are arranged along the main axis A.
  • the shape of the synthetic fiber and the number and shape of the strands of the embodiment shown in the figure are intended to be purely exemplary and can be adapted by the skilled person depending on the result to be achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Road Paving Structures (AREA)

Claims (15)

  1. Fibre synthétique pour un fil de poil d'un revêtement de pelouse artificielle, comprenant :
    un premier composant synthétique (4) et
    un deuxième composant synthétique (6) noyé dans le premier composant synthétique (4),
    le deuxième composant synthétique (6) présentant une capacité de rappel plus élevée que le premier composant synthétique (4) et étant réalisé sous forme d'au moins deux torons (8a-8e) s'étendant dans la direction longitudinale de la fibre synthétique, qui sont disposés, en section transversale, au moins approximativement le long d'une droite.
  2. Fibre synthétique selon la revendication 1, caractérisée en ce que le premier composant synthétique (4) comprend une polyoléfine, en particulier du polyéthylène et/ou du polypropylène.
  3. Fibre synthétique selon l'une quelconque des revendications précédentes, caractérisée en ce que le deuxième composant synthétique (6) comprend un polyamide.
  4. Fibre synthétique selon l'une quelconque des revendications précédentes, caractérisée en ce que le nombre de torons du deuxième composant synthétique (6) est de 2 à 10, de préférence de 2 à 7, le plus souvent de préférence de 5.
  5. Fibre synthétique selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle présente, en section transversale, essentiellement une forme ayant un premier axe de symétrie (A) et un deuxième axe de symétrie (B) s'étendant à angle droit par rapport au premier axe de symétrie, l'étendue dans la direction du deuxième axe de symétrie (B) étant plus petite que l'étendue dans la direction du premier axe de symétrie (A).
  6. Fibre synthétique selon la revendication 5, caractérisée en ce que les torons (8a-8e) du deuxième composant synthétique (6) sont disposés au moins approximativement le long du premier axe de symétrie (A).
  7. Fibre synthétique selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle présente, en section transversale, la forme d'un losange avec des coins arrondis.
  8. Revêtement de pelouse artificielle comprenant un support plan et un poil utile, qui est formé de fils de poil connectés à un support, caractérisé en ce que les fils de poil du poil utile sont formés au moins en partie d'une fibre synthétique (2) selon l'une quelconque des revendications précédentes.
  9. Revêtement de pelouse artificielle selon la revendication 8, caractérisé en ce que la longueur du fil de poil du poil utile, mesurée depuis le côté supérieur du support, est de l'ordre de 2,5 à 4 cm.
  10. Revêtement de pelouse artificielle selon la revendication 8 ou 9, caractérisé en ce qu'une première partie du fil de poil du poil utile, mesurée depuis le côté supérieur du support, est plus longue qu'une deuxième partie du fil de poil du poil utile.
  11. Revêtement de pelouse artificielle selon la revendication 10, caractérisé en ce que les fils de poil de la première partie sont plus longs de 5 à 10 mm que les fils de poil de la deuxième partie.
  12. Revêtement de pelouse artificielle selon l'une quelconque des revendications 8 à 11, caractérisé en ce que le poil utile présente, sur son côté opposé au support, une densité inférieure à 1400 fils de poil par décimètre carré.
  13. Revêtement de pelouse artificielle selon l'une quelconque des revendications 8 à 12, caractérisé en ce qu'il présente en outre une couche de base en fibres de polyamide.
  14. Revêtement de pelouse artificielle selon l'une quelconque des revendications 8 à 13, caractérisé en ce qu'il est non rempli.
  15. Utilisation du revêtement de pelouse artificielle selon l'une quelconque des revendications 8 à 14 pour un terrain de sport ou un terrain de jeu, en particulier un terrain de football.
EP20100004948 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle Active EP2395135B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES12005285T ES2452523T3 (es) 2010-05-11 2010-05-11 Fibra sintética para una capa de césped artificial
EP20100004948 EP2395135B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle
EP12005285.7A EP2520696B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle
ES10004948T ES2391253T3 (es) 2010-05-11 2010-05-11 Fibra sintética para una capa de césped artificial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100004948 EP2395135B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP12005285.7A Division EP2520696B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle

Publications (2)

Publication Number Publication Date
EP2395135A1 EP2395135A1 (fr) 2011-12-14
EP2395135B1 true EP2395135B1 (fr) 2012-07-25

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EP20100004948 Active EP2395135B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle
EP12005285.7A Active EP2520696B1 (fr) 2010-05-11 2010-05-11 Fibre synthétique pour un revêtement de pelouse artificielle

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EP (2) EP2395135B1 (fr)
ES (2) ES2452523T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101983488B1 (ko) 2015-04-27 2019-09-03 폴리텍스 스포르트베래게 프로둑티온스 게엠베하 인조 잔디 및 제조 방법

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2582466T3 (es) 2012-05-15 2016-09-13 Tiara-Teppichboden Ag Revestimiento de césped artificial
EP3122942B1 (fr) * 2014-03-27 2018-01-03 Polytex Sportbeläge Produktions-GmbH Gazon artificiel et son procédé de production
WO2016113671A2 (fr) * 2015-01-12 2016-07-21 Vasconcelos De Araújo Macedo Luis Filipe Fibre synthétique multifilaments pour pelouse, et pelouse respective
CN110863408A (zh) * 2019-10-14 2020-03-06 江苏美意人造草坪有限公司 一种高耐候人工草坪用复合草丝及生产方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3480543B2 (ja) * 1996-02-20 2003-12-22 ダイヤテックス株式会社 人工芝生
DE19620407A1 (de) 1996-05-21 1997-11-27 Bayer Ag Thiocyano-triazolyl-Derivate
US6491991B2 (en) 2000-02-14 2002-12-10 Southwest Recreational Industries, Inc. Artificial turf system
TWI308609B (fr) * 2002-09-09 2009-04-11 San Fang Chemical Industry Co
CA2499237A1 (fr) * 2002-09-17 2004-04-01 Fibervisions A/S Fibres en polyolefine et leur utilisation dans la preparation de nontisses a volume et resilience eleves
DE10307174B4 (de) 2003-02-20 2017-05-24 Reifenhäuser GmbH & Co. KG Maschinenfabrik Mehrschicht-Monofilament
EP1696077A1 (fr) 2005-01-29 2006-08-30 Tiara-Teppichboden AG Matériau de revêtement, en particulier gazon artificiel
EP2161374B1 (fr) * 2008-09-09 2013-01-02 Motech GmbH Technology & Systems Gazon artificiel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101983488B1 (ko) 2015-04-27 2019-09-03 폴리텍스 스포르트베래게 프로둑티온스 게엠베하 인조 잔디 및 제조 방법

Also Published As

Publication number Publication date
EP2395135A1 (fr) 2011-12-14
EP2520696B1 (fr) 2014-02-26
ES2391253T3 (es) 2012-11-22
ES2452523T3 (es) 2014-04-01
EP2520696A1 (fr) 2012-11-07

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