EP2427600A1 - Pile yarn filament for artificial turf, artificial turf, and method for making pile yarn filament - Google Patents

Pile yarn filament for artificial turf, artificial turf, and method for making pile yarn filament

Info

Publication number
EP2427600A1
EP2427600A1 EP09844308A EP09844308A EP2427600A1 EP 2427600 A1 EP2427600 A1 EP 2427600A1 EP 09844308 A EP09844308 A EP 09844308A EP 09844308 A EP09844308 A EP 09844308A EP 2427600 A1 EP2427600 A1 EP 2427600A1
Authority
EP
European Patent Office
Prior art keywords
filament
pile yarn
cross
section
thickness
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
EP09844308A
Other languages
German (de)
French (fr)
Other versions
EP2427600B1 (en
EP2427600A4 (en
Inventor
Hannu Salmenautio
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.)
Saltex Oy
Original Assignee
Saltex Oy
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 Saltex Oy filed Critical Saltex Oy
Publication of EP2427600A1 publication Critical patent/EP2427600A1/en
Publication of EP2427600A4 publication Critical patent/EP2427600A4/en
Application granted granted Critical
Publication of EP2427600B1 publication Critical patent/EP2427600B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
    • D06N7/0065—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by the pile
    • 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 a monofilament made of synthetic material, to be used as pile yarn for artificial turf.
  • the invention is also directed to an artificial turf comprising such pile yarn filaments, and a method for producing such pile yarn filaments.
  • an artificial turf comprises a base structure, to which pile yarns simulating grass are attached by tufting, weaving, needling, glueing or by another suitable method.
  • Sand as a filler for stabilization of the turf, and/or elastic material to endow the turf with elasticity may be added between the pile yarns.
  • the artificial turf is exposed for instance to moisture and temperature variations, UV light and abrasion due to the use of the field.
  • Problems associated with known artificial turfs include wear and fibrillation of the grass, as well as low elasticity of the turf. After the pile yarns are bent under load, the original form thereof is no longer regained when the load is removed, and thus the grass on the turf is pressed down permanently.
  • One reason for this is that the rigidity of the pile yarns and the elasticity thereof are not in balance.
  • Fibrillated pile yarn is produced in the form of a band having a width of 10-15 mm, followed by incision thereof (fibrillation). The ends of the pile yarns will open as the filler is added and the artificial turf is used.
  • Monofilament yarn is produced from single filaments by winding 4-14, preferably 6-8 filaments together. Raw material of the pile yarn is most frequently polyethylene. Artificial turf made of monofilaments is more open, and the filler is more visible in the turf. Monofilaments stay more readily erect due to the possibility to provide the yarn with a profile.
  • First pile yarns had rectangular cross-sectional forms. While such pile yarns bend well, the recovery thereof after an impact is poor. They are also easily split in the middle after repeating impacts. A naturally looking turf may not be produced from filaments having profiles with non-varying thicknesses.
  • Pile yarn filaments having a cross-section with a great thickness in the middle and tapering towards both ends are known from the document US 3837980.
  • the centre of the profile there is a rib-like protrusion improving the recovery of the yarn after bending thereof due to an impact.
  • Pile yarn filaments having V shaped cross-sections with two sides united by a rib- like protrusion are known from the document US 3940522.
  • the appearance of the yarn is improved, and it is said to fibrillate less than a flat filament.
  • Pile yarn filaments having rhombus shaped cross-sections are known from the document US 6432505. Such a profile improves the resistance of the yarn and reduces fibrillation thereof due to wear and UV light.
  • V shaped or arcuated profile of a pile yarn is known form the document WO 2005005730 Al, the thickness of the centre part of the filament being greater than that of the wings laterally extending from said centre part, hi addition, there is at least one reinforcing fibre in the centre area.
  • Document WO 2006085751 Al shows various pile yarn filaments with sections for improving rigidity. In case the pile yarn has a less elastic structure, the grass will not be pressed down easily. Such a pile yarn is also said to retain water.
  • Document WO 2007107307 Al discloses profiles of pile yarn filaments, which profiles may have the form of a propeller, double convex, or be S shaped or wave- like. In all cases the cross-section of the pile yarn is symmetrical with respect to a point.
  • a pile yarn filament is produced by extrusion, followed by cooling the yarn for instance in a water bath, drying and stretching, hi case of the production of a yarn having a U shaped cross-section, a problem is the difficult removal of all water from the U-groove during drying. As a consequence, different parts of the cross-section are at different temperatures in the stage where the yarn is passed to stretching. This results in different stretching of the various sections of the yarn, the yarn thus becoming twisted.
  • the object of the invention is to solve the problems associated with the prior art.
  • One object is particularly to provide a novel pile yarn filament with superior technical properties that may be used for the production of an artificial turf having a high wear resistance and appealing appearance.
  • the pile yarn filament of the invention is characterized by the features defined in the characterizing part of claim 1.
  • Cross-section of the pile yarn filament comprises a first end with a first thickness and, spaced from the first end, a second end with a second thickness that is reduced in comparison to the first thickness.
  • the thickness of the cross-section is reduced starting from the thickest part of the first end towards the second end.
  • Said first end and second end are joined by the first and the second sides of the cross-section, said first side being convex and said second side being concave resulting in a cross-section of the filament with a conically tapering and distorted shape.
  • First end of the cross-section of the filament may for instance have the shape of a semicircle, triangle or polygon.
  • the thick first end of the cross-section of the filament provides the filament with rigidity and resistance necessary for the recovery of the erect position after an impact subjected thereto.
  • the thickness tapering towards the second end of the cross-section increases the elasticity of the filament and prevents the splitting thereof.
  • the cross-section preferably has a thickness tapering infinitely or by very small steps. The optical properties, particularly the light transmission of the pile yarn are improved by the distorted form and the thin second end.
  • the desired properties of the pile yarn may be influenced by suitably selected dimensioning of the pile yarn filament. Preferable dimensions of the cross-section are presented in the dependent claims.
  • the artificial turf of the invention is characterized by the features disclosed in claim 11.
  • Pile yarn to be used for the artificial turf may be produced from the monofilaments having an asymmetrical cross-section, for instance by combining 4-12, preferably 6-8 monofilaments together.
  • the artificial turf made from such filaments is endowed with a favourable appearance resembling natural lawn due to varying transmission of light through various filament parts with different thicknesses. Light is also readily reflected by the arcuated surfaces of the filaments.
  • Figure 1 is a cross-sectional view of the pile yarn filament of the invention.
  • Figure 2 is a perspective view of a small portion of the length of the pile yarn filament.
  • Cross-section of the pile yarn filament shown in Figures 1 and 2 is asymmetrical, comprising a first end 13 having a semicircular form, and spaced therefrom a second end 14, and further a first side 11 and a second side 12 joining said ends together.
  • the thickness of the first end 13 is substantially greater than that of the second end 14.
  • the first side 11 is convex, whereas the second side 12 is concave resulting in a cross-section of the filament 10 resembling a conically tapering distorted form.
  • the thickness of the cross-section tapers with substantially infinite steps towards the second end 14, starting from the thickest part of the semicircular end 13.
  • Ratio of the width y of the filament cross-section to the greatest cross-sectional thickness x is preferably between 10:1 and 4:1.
  • the thickness of the second end 14 being relatively small in comparison to that of the first end 13, this ratio also represents the conical tapering of the profile.
  • Distorsion of the filament may be represented by the distance z, said z being the perpendicular distance of the second side 12 from the line A tangentially drawn between the first end 13 and the second end 14. hi case the filament is straight, said distance would be 0.
  • said distance z ranges between 0.01 and 1.5 mm, preferably between 0.1 and 1.0 mm. This may be illustrated as the ratio of the distance z to the width y of the filament ranging between 1:10 and 1:2.
  • the filament may be made from a polyolefin such as polyethylene or polypropylene.
  • said filament may be made from a thermoplastic elastomer allowing for the reduction or even total obviation of the elastic filler layer of the artificial turf.
  • the filament may be made by extruding a polymer material either through a coni- cally tapering distorted orifice or through a straight conical orifice, followed by stretching and/or bending of the filament into a distorted form in downstream treatment steps after extrusion.
  • Semicircular portion 13 endows the filament 10 with the necessary flexural resistance and rigidity resulting in a filament 10 that will not break or permanently bend under load but may resume its original form once the load disappears. There are no stepwise changes in the thickness of the cross-section, and accordingly, the filament will not be split as easily as known filament profiles.
  • the appearance of the artificial turf made from the filament is improved by the portion tapering towards the second end 14 of the profile due to transmission of light through the tapering portion. This results in a pleasant appearance of and variation of different shades of green in the artificial turf made from the pile yarn in accordance with natural lawns.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

Pile yarn filament (10) to be used as the pile yarn for artificial turfs, having a conically tapering distorted cross-section. The cross-section of the filament (10) comprises a first end (13) with a first thickness and, spaced from the first end, a second end (14) with a second thickness that is reduced in comparison to thick¬ ness of the first end (13). The thickness of the cross-section decreases starting from the thickest part of the first end (13) towards the second end (14). Said first end (13) and second end (14) of the cross-section are joined by a first side (11) and a second side (12), which are convex and concave, respectively.

Description

Pile yarn filament for artificial turf, artificial turf, and method for making pile yarn filament
The invention relates to a monofilament made of synthetic material, to be used as pile yarn for artificial turf. The invention is also directed to an artificial turf comprising such pile yarn filaments, and a method for producing such pile yarn filaments.
Typically, an artificial turf comprises a base structure, to which pile yarns simulating grass are attached by tufting, weaving, needling, glueing or by another suitable method. Sand as a filler for stabilization of the turf, and/or elastic material to endow the turf with elasticity may be added between the pile yarns.
According to the application site, the artificial turf is exposed for instance to moisture and temperature variations, UV light and abrasion due to the use of the field. Problems associated with known artificial turfs include wear and fibrillation of the grass, as well as low elasticity of the turf. After the pile yarns are bent under load, the original form thereof is no longer regained when the load is removed, and thus the grass on the turf is pressed down permanently. One reason for this is that the rigidity of the pile yarns and the elasticity thereof are not in balance.
For the artificial turf, fibrillated pile yarn, or a monofilament yarn, or both together may be used as the pile yarn. Fibrillated pile yarn is produced in the form of a band having a width of 10-15 mm, followed by incision thereof (fibrillation). The ends of the pile yarns will open as the filler is added and the artificial turf is used. Monofilament yarn is produced from single filaments by winding 4-14, preferably 6-8 filaments together. Raw material of the pile yarn is most frequently polyethylene. Artificial turf made of monofilaments is more open, and the filler is more visible in the turf. Monofilaments stay more readily erect due to the possibility to provide the yarn with a profile. Various different profiles, or cross-sectional forms of the pile yarn filaments are known from the prior art. First pile yarns had rectangular cross-sectional forms. While such pile yarns bend well, the recovery thereof after an impact is poor. They are also easily split in the middle after repeating impacts. A naturally looking turf may not be produced from filaments having profiles with non-varying thicknesses.
Pile yarn filaments having a cross-section with a great thickness in the middle and tapering towards both ends are known from the document US 3837980. In the centre of the profile, there is a rib-like protrusion improving the recovery of the yarn after bending thereof due to an impact.
Pile yarn filaments having V shaped cross-sections with two sides united by a rib- like protrusion are known from the document US 3940522. The appearance of the yarn is improved, and it is said to fibrillate less than a flat filament.
Pile yarn filaments having rhombus shaped cross-sections are known from the document US 6432505. Such a profile improves the resistance of the yarn and reduces fibrillation thereof due to wear and UV light.
V shaped or arcuated profile of a pile yarn is known form the document WO 2005005730 Al, the thickness of the centre part of the filament being greater than that of the wings laterally extending from said centre part, hi addition, there is at least one reinforcing fibre in the centre area.
Document WO 2006085751 Al shows various pile yarn filaments with sections for improving rigidity. In case the pile yarn has a less elastic structure, the grass will not be pressed down easily. Such a pile yarn is also said to retain water. Document WO 2007107307 Al discloses profiles of pile yarn filaments, which profiles may have the form of a propeller, double convex, or be S shaped or wave- like. In all cases the cross-section of the pile yarn is symmetrical with respect to a point.
While the thickened section in known pile yarn filaments improves the rigidity of the pile yarn, the practice has shown that the filament will easily break just beside said thickened section. Further, all known pile yarn filaments have a profile that is symmetrical either with respect to a point or a line.
Typically, a pile yarn filament is produced by extrusion, followed by cooling the yarn for instance in a water bath, drying and stretching, hi case of the production of a yarn having a U shaped cross-section, a problem is the difficult removal of all water from the U-groove during drying. As a consequence, different parts of the cross-section are at different temperatures in the stage where the yarn is passed to stretching. This results in different stretching of the various sections of the yarn, the yarn thus becoming twisted.
The object of the invention is to solve the problems associated with the prior art. One object is particularly to provide a novel pile yarn filament with superior technical properties that may be used for the production of an artificial turf having a high wear resistance and appealing appearance.
The pile yarn filament of the invention is characterized by the features defined in the characterizing part of claim 1.
Cross-section of the pile yarn filament comprises a first end with a first thickness and, spaced from the first end, a second end with a second thickness that is reduced in comparison to the first thickness. The thickness of the cross-section is reduced starting from the thickest part of the first end towards the second end. Said first end and second end are joined by the first and the second sides of the cross-section, said first side being convex and said second side being concave resulting in a cross-section of the filament with a conically tapering and distorted shape.
First end of the cross-section of the filament may for instance have the shape of a semicircle, triangle or polygon.
The thick first end of the cross-section of the filament provides the filament with rigidity and resistance necessary for the recovery of the erect position after an impact subjected thereto. The thickness tapering towards the second end of the cross-section increases the elasticity of the filament and prevents the splitting thereof. The cross-section preferably has a thickness tapering infinitely or by very small steps. The optical properties, particularly the light transmission of the pile yarn are improved by the distorted form and the thin second end.
The desired properties of the pile yarn may be influenced by suitably selected dimensioning of the pile yarn filament. Preferable dimensions of the cross-section are presented in the dependent claims.
The artificial turf of the invention is characterized by the features disclosed in claim 11.
Pile yarn to be used for the artificial turf may be produced from the monofilaments having an asymmetrical cross-section, for instance by combining 4-12, preferably 6-8 monofilaments together. The artificial turf made from such filaments is endowed with a favourable appearance resembling natural lawn due to varying transmission of light through various filament parts with different thicknesses. Light is also readily reflected by the arcuated surfaces of the filaments.
The method for making the pile yarn filament of the invention is characterized by the features disclosed in claim 14. The invention is now described with reference to the figures of the appended drawings without wishing to limit the invention thereto.
Figure 1 is a cross-sectional view of the pile yarn filament of the invention.
Figure 2 is a perspective view of a small portion of the length of the pile yarn filament.
Cross-section of the pile yarn filament shown in Figures 1 and 2 is asymmetrical, comprising a first end 13 having a semicircular form, and spaced therefrom a second end 14, and further a first side 11 and a second side 12 joining said ends together. The thickness of the first end 13 is substantially greater than that of the second end 14. The first side 11 is convex, whereas the second side 12 is concave resulting in a cross-section of the filament 10 resembling a conically tapering distorted form. The thickness of the cross-section tapers with substantially infinite steps towards the second end 14, starting from the thickest part of the semicircular end 13.
Greatest thickness of the cross-section x, x being also the diameter of the semicircular portion 13, ranges between 0.1 and 1.0 mm, preferably between 0.1 and 0.5 mm. Thickness of the second end 14 of the cross-section ranges between 0.001 and 0.15 mm, preferably between 0.001 and 0.05 mm. Width y of the filament 10 ranges between 0.7 and 3.0 mm, preferably 1.0 and 2.5 mm.
Ratio of the width y of the filament cross-section to the greatest cross-sectional thickness x is preferably between 10:1 and 4:1. The thickness of the second end 14 being relatively small in comparison to that of the first end 13, this ratio also represents the conical tapering of the profile. Distorsion of the filament may be represented by the distance z, said z being the perpendicular distance of the second side 12 from the line A tangentially drawn between the first end 13 and the second end 14. hi case the filament is straight, said distance would be 0. For the filament of the invention, said distance z ranges between 0.01 and 1.5 mm, preferably between 0.1 and 1.0 mm. This may be illustrated as the ratio of the distance z to the width y of the filament ranging between 1:10 and 1:2.
Dtex of the filament ranges between 800 and 4500 dtex, preferably between 800 and 3500 dtex (1 dtex = 1 g/100 m).
The filament may be made from a polyolefin such as polyethylene or polypropylene. Alternatively, said filament may be made from a thermoplastic elastomer allowing for the reduction or even total obviation of the elastic filler layer of the artificial turf.
The filament may be made by extruding a polymer material either through a coni- cally tapering distorted orifice or through a straight conical orifice, followed by stretching and/or bending of the filament into a distorted form in downstream treatment steps after extrusion.
Semicircular portion 13 endows the filament 10 with the necessary flexural resistance and rigidity resulting in a filament 10 that will not break or permanently bend under load but may resume its original form once the load disappears. There are no stepwise changes in the thickness of the cross-section, and accordingly, the filament will not be split as easily as known filament profiles. The appearance of the artificial turf made from the filament is improved by the portion tapering towards the second end 14 of the profile due to transmission of light through the tapering portion. This results in a pleasant appearance of and variation of different shades of green in the artificial turf made from the pile yarn in accordance with natural lawns. Various different modifications of the invention are possible within the scope of protection defined in the claims as follows.

Claims

Claims
1. Pile yarn filament (10) for an artificial turf, characterized in that the cross- section of the filament (10) comprises a first end (13) with a first thickness and, spaced from the first end, a second end (14) with a second thickness, which is reduced in comparison to said first thickness, that the thickness of the cross- section decreases from the thickest part of the first end (13) towards the second end (14), that said first end (13) and second end (14) are joined by the first side (11) and the second side (12) of the cross-section, said first side (11) being convex and said second side (12) being concave, and accordingly, the cross-section of the filament (10) has a conically tapering and distorted shape.
2. Pile yarn filament (10) according to claim 1, characterized in that the first end (13) of the cross-section has the shape of a semicircle, triangle or polygon.
3. Pile yarn filament (10) according to claim 1 or 2, characterized in that the ratio of the width y of the cross-section to the greatest thickness x thereof is between 10:1 and 4:l.
4. Pile yarn filament (10) according to any of the preceding claims, characterized in that the distorsion z/y of the filament (10) ranges between 1:10 and 1:2, wherein z is the greatest distance of the concave side (12) of the filament (10) from the line (A) tangentially drawn between the ends (13, 14) of the filament, and y is the width of the filament (10).
5. Pile yarn filament (10) according to claim 1 or 2, characterized in that the width y of the filament (10) ranges between 0.7 and 3.0 mm, preferably between 1.0 and 2.5 mm.
6. Pile yarn filament (10) according to any of the preceding claims, characterized in that the greatest thickness x of the filament (10) ranges between 0.1 and 1.0 mm, preferably between 0.1 and 0.5 mm.
7. Pile yarn filament (10) according to any of the preceding claims, characterized in that the greatest distance z of the concave side (12) of the filament (10) from the line (A) tangentially drawn between the ends (13, 14) of the filament ranges between 0.01 and 1.5 mm, preferably between 0.1 and 1.0 mm.
8. Pile yarn filament (10) according to any of the preceding claims, characterized in that the dtex of the filament (10) ranges between 800 and 4500 dtex, preferably between 800 and 3500 dtex.
9. Pile yarn filament (10) according to any of the preceding claims, characterized in that the filament comprises polyolefin such as polyethylene or polypropylene.
10. Pile yarn filament (10) according to any of the preceding claims, characterized in that said filament comprises thermoplastic elastomer.
11. Artificial turf, comprising a base structure and a high number of pile yarns attached to said base structure, characterized in that the pile yarn comprises pile yarn filament (10) according to any of the preceding claims.
12. Artificial turf according to claim 11, characterized in that each pile yarn comprises from 4 to 12, preferably from 6 to 8 pile yarn filaments wound together.
13. Artificial turf according to claim 11 or 12, characterized in that it comprises pile yarn made from the pile yarn filament according to claim 10, said pile yarn replacing an elastic filler either partly or totally.
14. Method for making the pile yarn filament according to any of the claims 1 to 10, characterized in that said filament (10) is made by extruding a polymer material either through a conically tapering distorted orifice or through a straight conical orifice, followed by stretching and/or bending of the filament into a distorted form in a downstream treatment step after extrusion.
EP09844308.8A 2009-05-06 2009-05-06 Pile yarn filament for artificial turf, artificial turf comprising such filament, and method for making such filament Active EP2427600B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2009/050363 WO2010128196A1 (en) 2009-05-06 2009-05-06 Pile yarn filament for artificial turf, artificial turf, and method for making pile yarn filament

Publications (3)

Publication Number Publication Date
EP2427600A1 true EP2427600A1 (en) 2012-03-14
EP2427600A4 EP2427600A4 (en) 2012-10-31
EP2427600B1 EP2427600B1 (en) 2020-01-08

Family

ID=43050024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09844308.8A Active EP2427600B1 (en) 2009-05-06 2009-05-06 Pile yarn filament for artificial turf, artificial turf comprising such filament, and method for making such filament

Country Status (3)

Country Link
EP (1) EP2427600B1 (en)
DK (1) DK2427600T3 (en)
WO (1) WO2010128196A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1034291C2 (en) * 2007-08-27 2010-02-09 Hugo De Vries Synthetic turf carpet, and method and device for forming it.
EP2284318B1 (en) * 2009-07-14 2013-12-11 Green Vision Co. Ltd. Grass yarn
BR112014009635A2 (en) 2011-10-20 2017-05-09 Tarkett Inc process for making artificial grass fibers
WO2015175786A1 (en) 2014-05-14 2015-11-19 Shaw Industries Group, Inc. Artificial turf and associated devices and methods for making same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741739C (en) * 1937-03-30 1943-11-17 Minerva S A Spinneret for the production of curled artificial threads
US3135646A (en) * 1961-05-05 1964-06-02 Du Pont Helically crimped textile filaments
US3640670A (en) * 1968-06-20 1972-02-08 Fiber Industries Inc Spinnerette for extruding t-shaped filaments
US3940522A (en) 1971-05-27 1976-02-24 E. I. Du Pont De Nemours And Company Synthetic fibers and pile fabrics made therefrom
JPS5655266Y2 (en) 1972-06-14 1981-12-23
US5424128A (en) * 1993-07-21 1995-06-13 Robert Phillips Flexible cutting line with controlled drag
US6432505B1 (en) 1995-10-31 2002-08-13 Southwest Recreational Industries, Inc. Diamond cross section synthetic turf filament
US6491991B2 (en) * 2000-02-14 2002-12-10 Southwest Recreational Industries, Inc. Artificial turf system
JP2003055846A (en) * 2001-08-09 2003-02-26 Toray Ind Inc False twisted yarn and method for producing the same
AU2003250972A1 (en) 2003-07-14 2005-01-28 Mattex Leisure Industries Artificial turf filament and artificial turf system
WO2005056891A2 (en) * 2003-12-12 2005-06-23 Schramm Gmbh & Co. Kg Die plate for extrusion devices with at least one opening, thread use of such a thread artificial grass method for handling an artificial grass and method for production of a yarn
NL1028224C2 (en) 2005-02-08 2006-08-09 Ten Cate Thiolon Bv Plastic fiber of the monofilament type for use in an artificial grass sports field as well as an artificial grass mat suitable for sports fields provided with such plastic fibers.
EP1837423A1 (en) 2006-03-21 2007-09-26 Domo Zele NV Synthetic turf resembling a grass field
WO2009005375A1 (en) * 2007-07-03 2009-01-08 Tigerturf Nz Limited A yarn for synthetic turf and a synthetic turf

Also Published As

Publication number Publication date
DK2427600T3 (en) 2020-03-30
EP2427600B1 (en) 2020-01-08
EP2427600A4 (en) 2012-10-31
WO2010128196A1 (en) 2010-11-11

Similar Documents

Publication Publication Date Title
US10793973B2 (en) Synthetic fibre and an artificial lawn comprising such a fibre
EP2427600B1 (en) Pile yarn filament for artificial turf, artificial turf comprising such filament, and method for making such filament
US9873989B2 (en) Fiber for synthetic grass field
EP2284318B1 (en) Grass yarn
CN1820095A (en) Silk threads for artificial turf floor coverings, artificial turf floor coverings and sports fields comprising such threads, and method for producing such threads
KR102514267B1 (en) antimitotic fibers
AU2010200523A1 (en) Artificial turf filament and artificial turf system
WO1990015193A1 (en) Artificial lawn, pile yarn for artificial lawn, and method and spinneret for producing said lawn
EP4423328A1 (en) Artificial grass fibre for artificial turf
ATE446395T1 (en) IN PROFILE SIX-LABEL FILAMENTS WITH THREE LARGER LABS AND THREE SMALLER LABS, TUFTING CARPET MADE OF YARN WITH SUCH FILAMENTS AND CAPILLARY SPINNING NOZZLE FOR PRODUCING SUCH FILAMENTS
KR102057804B1 (en) Method for manufacturing yarn of artificial turf, and the yarn of artificial turf manufactured by the method, and the artificial turf having the yarn
CN103764915B (en) Synthetic fibers and the chinampa comprising this fiber
EP2131690A1 (en) Artificial hair and its manufacturing method
US20080260974A1 (en) Artificial turf
US20210189662A1 (en) Artifical grass
CN201394339Y (en) Upright artificial grass
CN1137578A (en) Modified cross-section fiber for artificial hair
KR100231194B1 (en) V-shaped spinneret and V-shaped fiber
KR20110048087A (en) Multifunctional artificial grass and its mold
AU2021293512A1 (en) Suture device
CN219117675U (en) Fracture-resistant polyester POY (polyester pre-oriented yarn) filament
CN201529375U (en) Wear-resistant man-made grass
EP4556606A1 (en) Artificial turf fiber with uninterrupted undulations
AU2024339932A1 (en) Artificial turf fiber with uninterrupted undulations
KR100245664B1 (en) Fiber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110915

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20121001

RIC1 Information provided on ipc code assigned before grant

Ipc: E01C 13/08 20060101AFI20120925BHEP

Ipc: D01D 5/253 20060101ALI20120925BHEP

Ipc: D06N 7/00 20060101ALI20120925BHEP

Ipc: D02G 3/44 20060101ALI20120925BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190408

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20190910

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009060969

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1222858

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200215

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20200325

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200408

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200409

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200508

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200408

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009060969

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1222858

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200108

26N No opposition filed

Effective date: 20201009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200108

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20250522

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20250515

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250520

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20250519

Year of fee payment: 17

Ref country code: DK

Payment date: 20250522

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20250520

Year of fee payment: 17

Ref country code: BE

Payment date: 20250522

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250516

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20250520

Year of fee payment: 17