EP0648868A1 - Verfahren zur Herstellung von Garnen für Kunstrasen - Google Patents

Verfahren zur Herstellung von Garnen für Kunstrasen Download PDF

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Publication number
EP0648868A1
EP0648868A1 EP94202940A EP94202940A EP0648868A1 EP 0648868 A1 EP0648868 A1 EP 0648868A1 EP 94202940 A EP94202940 A EP 94202940A EP 94202940 A EP94202940 A EP 94202940A EP 0648868 A1 EP0648868 A1 EP 0648868A1
Authority
EP
European Patent Office
Prior art keywords
yarn
bands
thickness
monofilament
stretching
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
EP94202940A
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English (en)
French (fr)
Other versions
EP0648868B1 (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
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19863022&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0648868(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tapijtfabriek H Desseaux NV filed Critical Tapijtfabriek H Desseaux NV
Publication of EP0648868A1 publication Critical patent/EP0648868A1/de
Application granted granted Critical
Publication of EP0648868B1 publication Critical patent/EP0648868B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent

Definitions

  • the invention relates to a method for producing a yarn for a field of artificial grass by extruding a polymer material into a monofilament, stretching the monofilament at an elevated temperature, relaxing it to obtain a band and twisting several bands together into a yarn.
  • a method of this kind is known from EP-A-417,832, wherein a yarn is produced by extruding the granulate and making bands having a width of 2 - 3 mm from the extrusion product, which bands have a width of 1 - 2 mm after stretching, whilst the thickness amounts to 50 - 70% of the original thickness of the extruded bands, whereupon 5 - 10 bands are twisted together into a yarn. It has now become apparent that the mechanical properties of the yarn may be improved by giving the yarn a predetermined form, obtained by extrusion to monofilaments and by stretching them under specific herebelow given circumstances.
  • the method according to the invention is characterized in that said extrusion takes place via a spinning plate having such a form that monofilaments are obtained, which in the cross-section have regularly spaced-apart protrusions having a height of 10 - 40% of the thickness of the monofilament without protrusions, being a thickness of 100 - 700 ⁇ m and a width of 1-5 mm, then strectching takes place at a stretching ratio between 1 : 2 and 1 : 10, whereby bands having a thickness of 50 - 350 ⁇ m and a width of 0.5 - 2 mm are obtained after relaxing and cooling, and in that subsequently 5 - 10 bands are twisted together in order to obtain said yarn.
  • the polymer to be used is preferably a block copolymer consisting of polypropylene and polyethylene marketed by Solvay, Belgium. More in particular the monofilaments have a thickness of 100 - 150 ⁇ m and a width of 1 - 1.5 mm after stretching. This is in particular achieved when stretching ratio of 1 : 3-6 is used.
  • the yarn, produced in accordance with EP-A-417,832 has the property that it post fibrillates less than the uptill then known yarns, as result of which the life of the yarn is extended and the field of artificial grass obtained with that yarn can be played on for a longer period of time.
  • the playing-properties can be maintained for a longer period of time, because the field will get less compact by the particles as fibrilated.
  • Another effect achieved by using the method according to the invention is that the yarn will become less sensitive to breaking. This is in particular achieved by giving the cross-section of the yarn a knobby structure, whereby the knobbs are provided in regularly spaced-apart relationship on the monofilaments and thus on the yarn produced from said monofilaments.
  • the core of the monofilament is indicated at 1 and the protrusions are indicated at 2.
  • the thickness of the monofilament is about 100 ⁇ m and the protrusions have a height of 10 - 20 ⁇ m.
  • the monofilaments shown in Figure 1 have a width of 1 - 5 mm and the protrusions may preferably be provided on both sides of the monofilament.
  • the bands For relaxing the bands are reheated by supplying them to rolls having a contact temperature of 155 °C and then cooling them by contacting rolls having a contact temperature of 25 °C, rotating more slowly, so that the bands had been upsetted in a slight way and the sizes of the upsetted bands were a thickness of 125 ⁇ m and a width of 1.2 mm.
  • the yarn was less sensitive for shrinking during processes at elevated temperature. From these bands a yarn was then produced by twisting 6 bands. By tufting the said obtained yarn, turf was produced for artificial grass.
  • the field was for hockey having 280 stitches per meter and having a pile height of 25 mm.
  • the thus obtained carpet was subjected to tests in order to determine its mechanical properties.
  • the carpet obtained from the known yarn already exhibits breakage at 3000 rotations whereas the carpet produced from the yarn according to the invention did not exhibit any sign of pile breakage until 5000 - 7500 rotations.
  • Example 1 The process according to Example 1 was repeated by using pure polypropylene instead of the block copolymer. The results as obtained with the pure polypropylene are the same as the results obtained in Example 1.

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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)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
EP94202940A 1993-10-18 1994-10-11 Verfahren zur Herstellung von Garnen für Kunstrasen Revoked EP0648868B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301798 1993-10-18
NL9301798A NL9301798A (nl) 1993-10-18 1993-10-18 Werkwijze voor het vervaardigen van garen voor een kunstgrasveld.

Publications (2)

Publication Number Publication Date
EP0648868A1 true EP0648868A1 (de) 1995-04-19
EP0648868B1 EP0648868B1 (de) 1997-04-09

Family

ID=19863022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202940A Revoked EP0648868B1 (de) 1993-10-18 1994-10-11 Verfahren zur Herstellung von Garnen für Kunstrasen

Country Status (8)

Country Link
EP (1) EP0648868B1 (de)
JP (1) JPH07197308A (de)
AT (1) ATE151475T1 (de)
DE (1) DE69402504T2 (de)
DK (1) DK0648868T3 (de)
ES (1) ES2099534T3 (de)
NL (1) NL9301798A (de)
NZ (1) NZ264629A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1006606C2 (nl) * 1997-07-17 1999-01-19 Desseaux H Tapijtfab Garen voor kunstgras, werkwijze voor het vervaardigen van het garen en kunstgrasveld waarin dat garen is verwerkt.
NL1016193C2 (nl) * 2000-09-15 2002-03-18 Desseaux H Tapijtfab Werkwijze voor het aanleggen van een kunstgrasveld en een dergelijk kunstgrasveld.
EP1734189A1 (de) * 2005-06-17 2006-12-20 Tapijtfabriek H. Desseaux N.V. Verfahren zur Herstellung von Monofilen und daraus hergestellter Kunstrasen
WO2011006878A1 (en) * 2009-07-14 2011-01-20 Green Vision International Tiles & Flooring Materials Trading Llc Grass yarn
WO2011027235A1 (en) * 2009-09-03 2011-03-10 Mondo S.P.A. Fiber for artificial turf
ITBO20100073A1 (it) * 2010-02-11 2011-08-12 S I M A Societa Ind Meccaniche Affini Torcitoio per la realizzazione di erba artificiale
US9005723B2 (en) 2010-11-09 2015-04-14 Tarkett Inc. Fiber for synthetic grass field

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072064A (en) * 1959-02-16 1963-01-08 Midland Ross Corp Apparatus for the manufacture of variable denier yarn
US3573147A (en) * 1968-01-24 1971-03-30 Monsanto Co Synthetic turf products having variable blade widths
CH511305A (de) * 1968-05-10 1971-04-30 Kantorowicz Joseph Verfahren zur Herstellung von seitlich stellenweise gequetschten Kunststoffäden oder -garnen
GB1305206A (de) * 1969-04-22 1973-01-31
DE2838986A1 (de) * 1978-09-07 1980-03-20 Bayer Ag Verfahren zur herstellung von kunststoffdraehten mit profilierung
EP0359321A1 (de) * 1988-09-16 1990-03-21 SOLVAY (Société Anonyme) Bändchenfasern aus Propylenpolymeren und deren Verwendung zur Herstellung von synthetischem Gras
EP0417832A1 (de) * 1989-09-05 1991-03-20 Tapijtfabriek H. Desseaux N.V. Verfahren zur Herstellung von Garnen für Kunstgrasflur und mit diesen Garnen hergestellter Kunstgrasflur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072064A (en) * 1959-02-16 1963-01-08 Midland Ross Corp Apparatus for the manufacture of variable denier yarn
US3573147A (en) * 1968-01-24 1971-03-30 Monsanto Co Synthetic turf products having variable blade widths
CH511305A (de) * 1968-05-10 1971-04-30 Kantorowicz Joseph Verfahren zur Herstellung von seitlich stellenweise gequetschten Kunststoffäden oder -garnen
GB1305206A (de) * 1969-04-22 1973-01-31
DE2838986A1 (de) * 1978-09-07 1980-03-20 Bayer Ag Verfahren zur herstellung von kunststoffdraehten mit profilierung
EP0359321A1 (de) * 1988-09-16 1990-03-21 SOLVAY (Société Anonyme) Bändchenfasern aus Propylenpolymeren und deren Verwendung zur Herstellung von synthetischem Gras
EP0417832A1 (de) * 1989-09-05 1991-03-20 Tapijtfabriek H. Desseaux N.V. Verfahren zur Herstellung von Garnen für Kunstgrasflur und mit diesen Garnen hergestellter Kunstgrasflur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1006606C2 (nl) * 1997-07-17 1999-01-19 Desseaux H Tapijtfab Garen voor kunstgras, werkwijze voor het vervaardigen van het garen en kunstgrasveld waarin dat garen is verwerkt.
WO1999004074A1 (en) 1997-07-17 1999-01-28 Tapijtfabriek H. Desseaux N.V. A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated
NL1016193C2 (nl) * 2000-09-15 2002-03-18 Desseaux H Tapijtfab Werkwijze voor het aanleggen van een kunstgrasveld en een dergelijk kunstgrasveld.
WO2002022960A1 (en) * 2000-09-15 2002-03-21 Tapijtfabriek H. Desseaux N.V. Method for constructing a field of artificial grass and such a field of artificial grass
EP1734189A1 (de) * 2005-06-17 2006-12-20 Tapijtfabriek H. Desseaux N.V. Verfahren zur Herstellung von Monofilen und daraus hergestellter Kunstrasen
EP2284318A1 (de) * 2009-07-14 2011-02-16 Green Vision Co. Ltd. Grasgarn
WO2011006878A1 (en) * 2009-07-14 2011-01-20 Green Vision International Tiles & Flooring Materials Trading Llc Grass yarn
WO2011027235A1 (en) * 2009-09-03 2011-03-10 Mondo S.P.A. Fiber for artificial turf
CN102625865A (zh) * 2009-09-03 2012-08-01 曼顿有限公司 人工草皮用纤维
ITBO20100073A1 (it) * 2010-02-11 2011-08-12 S I M A Societa Ind Meccaniche Affini Torcitoio per la realizzazione di erba artificiale
EP2360300A1 (de) * 2010-02-11 2011-08-24 Sima Group S.r.l. Zwirnmaschine zur Herstellung von künstlichem Grass
US9005723B2 (en) 2010-11-09 2015-04-14 Tarkett Inc. Fiber for synthetic grass field
US9873989B2 (en) 2010-11-09 2018-01-23 Tarkett Inc. Fiber for synthetic grass field

Also Published As

Publication number Publication date
EP0648868B1 (de) 1997-04-09
JPH07197308A (ja) 1995-08-01
ES2099534T3 (es) 1997-05-16
DE69402504T2 (de) 1997-07-17
NZ264629A (en) 1995-09-26
ATE151475T1 (de) 1997-04-15
DK0648868T3 (da) 1997-07-21
DE69402504D1 (de) 1997-05-15
NL9301798A (nl) 1995-05-16

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