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EP2284318B1 - Fil d'herbe - Google Patents

Fil d'herbe Download PDF

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Publication number
EP2284318B1
EP2284318B1 EP09165468.1A EP09165468A EP2284318B1 EP 2284318 B1 EP2284318 B1 EP 2284318B1 EP 09165468 A EP09165468 A EP 09165468A EP 2284318 B1 EP2284318 B1 EP 2284318B1
Authority
EP
European Patent Office
Prior art keywords
grass
yarn
yarns
grass yarn
ridges
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.)
Revoked
Application number
EP09165468.1A
Other languages
German (de)
English (en)
Other versions
EP2284318A1 (fr
Inventor
Robert Peter Rossing
Geert Haentjens
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.)
GREEN VISION CO Ltd SA
Original Assignee
GREEN VISION CO Ltd SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40933796&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2284318(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GREEN VISION CO Ltd SA filed Critical GREEN VISION CO Ltd SA
Priority to ES09165468.1T priority Critical patent/ES2442270T3/es
Priority to EP09165468.1A priority patent/EP2284318B1/fr
Priority to PCT/EP2010/060013 priority patent/WO2011006878A1/fr
Priority to US13/383,753 priority patent/US20120189785A1/en
Publication of EP2284318A1 publication Critical patent/EP2284318A1/fr
Application granted granted Critical
Publication of EP2284318B1 publication Critical patent/EP2284318B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • 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
    • 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
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/202—Artificial grass

Definitions

  • the invention relates to grass yarn for artificial grass coverings or turf coverings, such as known from WO 2005 005731 or WO 01 61110 .
  • Synthetic grass exists of synthetic blades or fibers that are attached to a support layer.
  • On artificial turf can be played more hours per day, than natural turf.
  • a training pitch provided with artificial turf can be used more intense, such that the number of training pitches can be reduced.
  • the stiffness of the yarns is one of the important aspects. If the yarns are to flexible, they will fall down. If the yarns are too stiff, they could hurt the players playing on the artificial turf. Also for a sport field, like a soccer field, the ball - surface interaction is influenced by the stiffness of the yarns. For example how a ball will roll over the artificial turf. Player-surface interactions are also influenced by stiffness, for example a stiff yarn can injure players.
  • Elasticity modulus In general stiffness is influenced by the Elasticitymodulus (or Young's modulus) and by the cross sectional inertia. Elasticity modulus is a result of two major properties; first the choice of the raw raw materials and secondly the processing conditions of the yarn.
  • the first artificial turf coverings were mainly produced with a fibrillated tape fiber. These tapes have a rectangular shape, which has a relative low cross sectional inertia. To arrive at a desired stiffness of the yarns, the thickness will be such, that the appearance of the tape fibers does not correspond with the appearance of natural grass.
  • a Second disadvantage of rectangular shapes is the shiny effect. Often described in the market as plastic look.
  • polymers could be used for the production of blades for artificial turf. Polyethylene is at this moment the most used raw material for artificial grass yarns. Depending on the application also the usage of polypropylene and polyamide can be seen. Depending on the additives that are used and the production method these polymers tend to give the product a shiny look.
  • the plastic look makes the product look cheap. Especially in applications where no sport properties and only optical properties are important the appearance of a grass field is important.
  • Monofilament yarns provide an increased design freedom, like in the cross sectional shape, compared to fibrillated tape yarns. Instead of the common rectangular cross section of fibrillated tape, monofilament yarns have the possibility of almost any desired cross section.
  • a circular cross section or I-shaped cross section has for example a higher cross sectional inertia and subsequently a higher stiffness, than a rectangular cross section.
  • the grass yarn (or grass filament) has a sickle-shaped cross section.
  • the yarn has a curved cross section with a thick center part tapering to both ends. This results in an increased cross sectional inertia and thus higher stiffness. Also, due to the curved shape, light is reflected to different directions by the yarn, reducing the reflection.
  • Another embodiment of the grass yarn according to the invention comprises a plurality of ridges arranged on the surface of the grass yarn. These ridges disperse the light such that the reflection of the yarns is reduced.
  • the plurality of ridges are arranged in longitudinal direction of the grass yarn.
  • the longitudinal ridges can be manufactures easily.
  • the height of the ridges is 0,5% - 15% of the main thickness of the grass yarn. With the main thickness it is understood the maximum thickness of the cross section of the yarn.
  • the grass yarn according to the invention is preferably of a material selected from the group high density polyethylene (HDPE), polypropylene (PP), polyamide (PA), polyester and low density polyethylene (LDPE). More preferred, the material of the grass yarn is linear low density polyethylene (LLDPE).
  • HDPE high density polyethylene
  • PP polypropylene
  • PA polyamide
  • LDPE low density polyethylene
  • LLDPE linear low density polyethylene
  • the linear mass density of an individual filament is in the range of 50 - 300 tex.
  • the invention further relates to an artificial grass covering comprising a plurality of grass yarns according to the invention.
  • the artificial grass covering according to the invention comprises a support layer to which the grass yarns are arranged.
  • FIG 1 a cross sectional view of a first embodiment 1 of a grass yarn is shown.
  • the shape of the grass yarn 1 is sickle-shaped.
  • This sickle-shaped grass yarn 1 has a thick center portion with a maximum thickness t 1 and two ends tapering into edges 2.
  • the convex side 3 of the sickle-shaped grass yarn 1 is provided with ridges 4.
  • the concave side 5 of the grass yarn 1 is in this embodiment smooth.
  • the ridges 4 have a thickness t 2 .
  • This thickness t 2 is typically 0,5% - 15% of the thickness t 1 of the sickle shape.
  • the ridges 4 will scatter light such that the grass yarns according to the invention will have a light reflection similar to natural grass. Furthermore the curved sickle-shape provides for a high cross sectional inertia resulting in a relative high stiffness of the grass yarn 1 relative to the maximum thickness t 1 of the yarn 1.
  • FIG 2 a second embodiment of a grass yarn 10 according to the invention is shown.
  • the shape of this grass yarn 10 in cross section is also sickle shaped.
  • both the convex side 11 as the concave side 12 are provided with ridges 13 in order to reduce light reflection.
  • FIG 3 shows an embodiment of an artificial grass covering 20.
  • This grass covering 20 has a support layer 21, in which tufts 22, 23 of grass yarns 24.
  • the grass yarns 24 are shown schematically arranged in the support layer 21.
  • grass yarns 24 per tuft 22, 23 are shown for explanation of the invention.
  • 4 - 12 grass yarns are used per tuft in standard applications of a grass covering according to the invention.
  • This combined yarn is used for tufting the following grass carpet construction:
  • Figure 4A shows a cross sectional view of an embodiment of a yarn 30 not according to the invention.
  • This yarn 30 has an ellipse shaped cross section, being provided with evenly distributed ridges 31 at the surface.
  • Figure 4B shows a cross sectional view of another embodiment of a yarn 35 not according to the invention.
  • This yarn 35 has a rectangular shaped cross section, being provided with evenly distributed ridges 36 at the surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (9)

  1. Brin d'herbe (1 ; 10), pour revêtements de gazon artificiel, qui est un monofilament, caractérisé en ce que le brin d'herbe a une section transversale falciforme, dans lequel le brin a une section transversale incurvée avec une partie centrale épaisse s'effilant jusqu'aux deux extrémités.
  2. Brin d'herbe (1 ; 10) selon la revendication 1, comprenant une pluralité de saillies (4 ; 13) agencées sur la surface du brin d'herbe.
  3. Brin d'herbe (1 ; 10) selon la revendication 2, dans lequel la pluralité de saillies (4 ; 13) est agencée dans la direction longitudinale du brin d'herbe.
  4. Brin d'herbe (1 ; 10) selon la revendication 2 ou 3, dans lequel la hauteur (t2) des saillies (4 ; 13) fait 0,5 % à 10 % de l'épaisseur principale (t1) du brin d'herbe (1 ; 10).
  5. Brin d'herbe (1 ; 10) selon l'une quelconque des revendications précédentes, dans lequel le brin d'herbe (1 ; 10) est d'une matière sélectionnée à partir du groupe constitué par le polyéthylène haute densité (HDPE), le polypropylène (PP), le polyamide (PA), le polyester et le polyéthylène basse densité (LDPE).
  6. Brin d'herbe (1 ; 10) selon la revendication 5, dans lequel la matière est un polyéthylène linéaire basse densité (LLDPE).
  7. Brin d'herbe (1 ; 10) selon l'une quelconque des revendications précédentes, dans lequel la densité massique linéaire est dans la plage de 50 à 300 tex.
  8. Revêtement de gazon artificiel (20) comprenant une pluralité de brins d'herbe (1 ; 10 ; 24) selon l'une quelconque des revendications précédentes.
  9. Revêtement de gazon artificiel (20) selon la revendication 8, comprenant une couche de support (21) sur laquelle les brins d'herbe (24) sont agencés.
EP09165468.1A 2009-07-14 2009-07-14 Fil d'herbe Revoked EP2284318B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES09165468.1T ES2442270T3 (es) 2009-07-14 2009-07-14 Hebra de hierba
EP09165468.1A EP2284318B1 (fr) 2009-07-14 2009-07-14 Fil d'herbe
PCT/EP2010/060013 WO2011006878A1 (fr) 2009-07-14 2010-07-13 Fil d'herbe
US13/383,753 US20120189785A1 (en) 2009-07-14 2010-07-13 Grass Yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09165468.1A EP2284318B1 (fr) 2009-07-14 2009-07-14 Fil d'herbe

Publications (2)

Publication Number Publication Date
EP2284318A1 EP2284318A1 (fr) 2011-02-16
EP2284318B1 true EP2284318B1 (fr) 2013-12-11

Family

ID=40933796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09165468.1A Revoked EP2284318B1 (fr) 2009-07-14 2009-07-14 Fil d'herbe

Country Status (4)

Country Link
US (1) US20120189785A1 (fr)
EP (1) EP2284318B1 (fr)
ES (1) ES2442270T3 (fr)
WO (1) WO2011006878A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036418C2 (nl) 2009-01-14 2010-07-15 Ten Cate Thiolon Bv Kunststofvezel alsmede een kunstgrasveld voorzien van een dergelijke vezel.
EP2494109B1 (fr) * 2009-10-30 2013-12-11 MAR. Project S.r.l. Gazon mixte
US9005723B2 (en) 2010-11-09 2015-04-14 Tarkett Inc. Fiber for synthetic grass field
ES2734059T3 (es) * 2011-07-01 2019-12-04 Ten Cate Thiolon Bv Fibra sintética y un césped artificial que comprende tal fibra
US10793973B2 (en) * 2011-07-01 2020-10-06 Ten Cate Thiolon B.V. Synthetic fibre and an artificial lawn comprising such a fibre
ITBO20120150A1 (it) * 2012-03-21 2013-09-22 Veronica Righini Elemento di erba sintetica
EP2894256A1 (fr) * 2014-01-09 2015-07-15 Green Vision Co. Ltd. Système de gazon artificiel
CA2948645C (fr) * 2014-05-14 2022-10-04 Shaw Industries Group, Inc. Gazon artificiel et dispositifs associes et leurs procedes de fabrication
EP3480344A1 (fr) * 2017-11-03 2019-05-08 Polytex Sportbeläge Produktions-GmbH Production d'une fibre de gazon artificiel avec une gaine non circulaire
EP3480361A1 (fr) * 2017-11-03 2019-05-08 Polytex Sportbeläge Produktions-GmbH Fibre de gazon artificiel comportant une gaine non circulaire
KR102013552B1 (ko) * 2019-05-29 2019-08-22 주식회사 주목씨지알 맥반석이 함유된 인조잔디용 파일원사 조성물 및 그 조성물로 제조되는 직립성이 우수한 인조잔디용 파일원사

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US3346916A (en) * 1966-01-17 1967-10-17 Monsanto Co Spinneret for production of synthetic grass yarn
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EP1837423A1 (fr) * 2006-03-21 2007-09-26 Domo Zele NV Gazon synthétique ressemblant à un gazon naturel
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US9005723B2 (en) * 2010-11-09 2015-04-14 Tarkett Inc. Fiber for synthetic grass field
US10793973B2 (en) * 2011-07-01 2020-10-06 Ten Cate Thiolon B.V. Synthetic fibre and an artificial lawn comprising such a fibre
KR101357683B1 (ko) * 2013-11-12 2014-02-04 (주)대건씨앤엘 내구성이 향상된 인조잔디 원사

Also Published As

Publication number Publication date
EP2284318A1 (fr) 2011-02-16
US20120189785A1 (en) 2012-07-26
ES2442270T3 (es) 2014-02-10
WO2011006878A1 (fr) 2011-01-20

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