EP0996781B2 - A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated - Google Patents
A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated Download PDFInfo
- Publication number
- EP0996781B2 EP0996781B2 EP98935399A EP98935399A EP0996781B2 EP 0996781 B2 EP0996781 B2 EP 0996781B2 EP 98935399 A EP98935399 A EP 98935399A EP 98935399 A EP98935399 A EP 98935399A EP 0996781 B2 EP0996781 B2 EP 0996781B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- polyamide
- polypropylene
- artificial grass
- block copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/445—Yarns or threads for use in floor fabrics
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
- D10B2505/202—Artificial grass
Definitions
- a yarn for artificial grass a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated.
- the invention relates to a yarn containing polyamide for producing artificial grass.
- the invention furthermore relates to a method of manufacturing said yarn and to a field of artificial grass in which said yarn is incorporated.
- Such a yarn for a field of artificical grass is known from Japanese patent publication JP 7048778A .
- the field of artificial grass is obtained by intertwining polyamide fibre and PE fibre in a base layer. More in particular, the method comprises the provision in a base layer, in a pile length of 25 mm, of a yarn by twisting split yarn made of 5000d polyamide and split yarn made of 5000d high density PE.
- Such a yarn is also known from Japanese patent publication JP 09119036A , wherein a yarn for artificial turf pile is formed by melt-spinning a polyamide resin composition comprising 70 - 99 % by weight of a polyamide resin and 1 - 30 % by weight of a polyethylene resin.
- a yarn is furthermore known which is used for making artificial grass, which yarn is manufactured of polypropylene or of a block copolymer of polypropylene and polyethylene.
- the yarn according to the invention is characterized in that the yarn, in addtion to polyamide, also contains a polyolefin compound in which said polyolefin compound is a block copolymer of polypropylene and polyethylene.
- a block copolymer of polypropylene and polyethylene is used.
- a particularly suitable block copolymer is the polypropylene/polyethylene block copolymer as described in European patent application No. 0 359 321 , which block copolymer is marketed by Solvay, Belgium with a melt flow index of about 4.
- Such a preferred yarn is preferably composed of 20 - 80 % by weight of block copolymer of polypropylene and polyethylene, and 20 - 80 % by weight of polyamide.
- JP-A-3,279,419 discloses a fibre which consists of Nylon which is mixed with polypropylene. Said fibre has been used for making clothes. Said Japanese patent publication does not describe the use of such a mixture of polymers for manufacturing artificial grass.
- US patent No. 5,597,650 discloses a carpet yarn having special properties as regards flame retardation and resistance to stains.
- Said yarn consists of a polyolefin matrix, preferably polypropylene, in which smaller polyamide fibrils are embedded.
- Said US patent does not describe the use of such a yarn for manufacturing artificial grass.
- the polymer is extruded to form monofilaments, which are subsequently processed into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn.
- This method is characterized in that monofilaments are extruded from a block copolymer of polypropylene and polyethylene, and that monofilaments are extruded from polyamide, or in that monofilaments are extruded from a mixture of a block copolymer of polypropylene and polyethylene on the one hand and polyamide on the other hand.
- the core is built up of a block copolymer of polypropylene and polyethylene
- the cladding is built up of polyamide.
- the present invention is not limited to the use of monofilaments, and in a special embodiment it is preferred to use the yarns of fibrillated yarn of the block copolymer of polyethylene and polypropylene, on the one hand and a yarn of fibrillated polyamide yarn on the other hand.
- the method of producing fibrillated yarn is described in European patent application No. 0 263 566.
- a foil is made from a polymer which, in addition to polyamide, also contains a polyolefin compound wherein said polyolefin compound is a block copolymer of polypropylene and polyethylene, which foil is cut into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn.
- a foil is also possible on the one hand to make a foil from a block copolymer of polypropylene and polyethylene and on the other hand to make a foil from polyamide, after which the bands obtained from said two foils may be processed to form said composite yarn.
- a combination of mono-filaments and fibrillated yarns, preferably monofilaments of polyamide and fibrillated yarn of the block copolymer of polypropylene and polyethylene, is also suitable for manufacturing the composite yarn.
- Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained.
- a method as indicated in example 1 of EP-A-0 648 868 was thereby used for the block copolymer.
- the bands were processed to form a yarn, thus producing the block copolymer of polyethylene and polypropylene yarn consisting of four non-twisted bands each having a yarn number of 1100 dtex on the one hand and a polyamide yarn consisting of non-twisted bands each having a yarn number of 666 dtex on the other hand.
- Said two yarn types were twined to form a composite yarn having a yarn number of 8400 dtex.
- Said composite yarn was then knitted and fixed so as to obtain a teasing effect, after which the teased composite yarn was used for obtaining a carpet for artificial grass.
- the yarn was tufted with 300 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m 2 .
- the carpet thus obtained was subjected to various tests in order to determine the mechanical properties, such as the tretrad test for determining the fibrillation, the Taber test for determining the weight loss and the Leroux test for determining the sliding properties.
- Table A Block copolymer of polypropylene and polyethylene Polyamide Composite yarn of polyamide and block copolymer of polypropylene and polyethylene tretrad post-fibrillation no post-fibrillation no post-fibrillation Taber (g/m 2 ) loss 2000 t 0.38 0.56 0.32 5000 t 0.93 1.49 0.76 sliding Leroux dry 0.790 0.760 0.772 wet 0.537 0.440 z 0.390
- burn tests in accordance with BS 4790 show a low value for the artificial grass according to the invention, which value is comparable with that of artificial grass made from polyamide, but which is better than that of artificial grass made from polypropylene-containing polymer.
- the artificial grass was manufactured in the same manner as in Example 1.
- a field of artificial grass scattered in with sand was composed, to which end the yarn was tufted with 140 stitches per running metre and a pile height of 34 mm, as a result of which a pile insert weight of 970 g/m 2 was obtained.
- the carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass scattered in with sand, the mechanical properties of the yarn composed of the block copolymer of polyethylene and polypropylene and polyamide were much better than those of yarns for fields of artificial grass which were made from polypropylene and from polyamide.
- Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained.
- a method as indicated in example 1 of EP-A-0 648 868 was thereby used for the block copolymer, so as to obtain a block copolymer having a yarn number of 8800 dtex consisting of 8 bands, each having a yarn number of 1100 dtex.
- the block copolymer yarn was preferably threaded on the uneven positions on the creel of the tufting machines, whilst the polyamid yarn was threaded on the even positions. It is also possible, however, to use other position settings.
- the carpet for artificial grass which was built up of separate yarns of block copolymer and polyamide, was tufted with 310 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m 2 .
- the carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass, whether or not scattered in with sand, the mechanical properties of the field of artificial grass made from the block copolymer of polyethylene and polypropylene and polyamide were much better than those of fields of artificial grass made from polypropylene and from polyamide.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
- Road Paving Structures (AREA)
- Materials For Medical Uses (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
- A yarn for artificial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated.
- The invention relates to a yarn containing polyamide for producing artificial grass. The invention furthermore relates to a method of manufacturing said yarn and to a field of artificial grass in which said yarn is incorporated.
- Such a yarn for a field of artificical grass is known from
Japanese patent publication JP 7048778A - Such a yarn is also known from
Japanese patent publication JP 09119036A - From EP-A-0 648 868 a yarn is furthermore known which is used for making artificial grass, which yarn is manufactured of polypropylene or of a block copolymer of polypropylene and polyethylene.
- It has now become apparent that the properties of yarn for artificial grass, in particular its wear-resistance, flexibility and processibility, can be improved by manufacturing the artificial grass of a specified combination of polymers, and consequently the yarn according to the invention is characterized in that the yarn, in addtion to polyamide, also contains a polyolefin compound in which said polyolefin compound is a block copolymer of polypropylene and polyethylene.
- In the yarn according to the present invention, a block copolymer of polypropylene and polyethylene is used. A particularly suitable block copolymer is the polypropylene/polyethylene block copolymer as described in
European patent application No. 0 359 321 , which block copolymer is marketed by Solvay, Belgium with a melt flow index of about 4. Such a preferred yarn is preferably composed of 20 - 80 % by weight of block copolymer of polypropylene and polyethylene, and 20 - 80 % by weight of polyamide. - From
JP-A-5,171,613 -
JP-A-3,279,419 -
US patent No. 5,597,650 discloses a carpet yarn having special properties as regards flame retardation and resistance to stains. Said yarn consists of a polyolefin matrix, preferably polypropylene, in which smaller polyamide fibrils are embedded. Said US patent does not describe the use of such a yarn for manufacturing artificial grass. - According to the method which is used in particular for producing yarns which are used for manufacturing artificial grass, the polymer is extruded to form monofilaments, which are subsequently processed into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn. This method is characterized in that monofilaments are extruded from a block copolymer of polypropylene and polyethylene, and that monofilaments are extruded from polyamide, or in that monofilaments are extruded from a mixture of a block copolymer of polypropylene and polyethylene on the one hand and polyamide on the other hand. Furthermore it is preferred to process in particular the monofilaments of the block copolymer of polyethylene and polypropylene into a first yarn containing the block copolymer of polyethylene and polypropylene, and to process the monofilaments of polyamide into a second yarn containing polyamide, after which the two yarns are joined to form a composite yarn. Then the artificial grass is manufactured of said composite yarn. In specified embodiments, however, it is preferred to use a yarn of the block copolymer of polypropylene and polyethylene on the one hand and a yarn of polyamide on the other hand as separate yarns for producing a field of artificial grass. Experiments have shown that fields of artificial grass produced in this manner exhibit better mechanical properties than fields of artificial grass according to the prior art as described above. Such a method of producing monofilaments is described in European patent No. 0 648 868.
- Furthermore it is preferred to use co-extrusion in manufacturing the yarn according to the present invention. According to such a method, the core is built up of a block copolymer of polypropylene and polyethylene, and the cladding is built up of polyamide. Under certain circumstances it is preferred to exchange the aforesaid core and cladding materials, so that a core of polyamide is obtained.
- The present invention is not limited to the use of monofilaments, and in a special embodiment it is preferred to use the yarns of fibrillated yarn of the block copolymer of polyethylene and polypropylene, on the one hand and a yarn of fibrillated polyamide yarn on the other hand. The method of producing fibrillated yarn is described in European patent application No. 0 263 566. Thus, in a special embodiment of the method according to the present invention a foil is made from a polymer which, in addition to polyamide, also contains a polyolefin compound wherein said polyolefin compound is a block copolymer of polypropylene and polyethylene, which foil is cut into bands, with several bands being twisted to form a yarn, and possibly with several yarns being twined to form a composite yarn. According to such a method it is also possible on the one hand to make a foil from a block copolymer of polypropylene and polyethylene and on the other hand to make a foil from polyamide, after which the bands obtained from said two foils may be processed to form said composite yarn. A combination of mono-filaments and fibrillated yarns, preferably monofilaments of polyamide and fibrillated yarn of the block copolymer of polypropylene and polyethylene, is also suitable for manufacturing the composite yarn.
- The invention will be explained in more detail hereafter by means of the following examples.
- Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained. A method as indicated in example 1 of
EP-A-0 648 868 was thereby used for the block copolymer. The bands were processed to form a yarn, thus producing the block copolymer of polyethylene and polypropylene yarn consisting of four non-twisted bands each having a yarn number of 1100 dtex on the one hand and a polyamide yarn consisting of non-twisted bands each having a yarn number of 666 dtex on the other hand. Said two yarn types were twined to form a composite yarn having a yarn number of 8400 dtex. Said composite yarn was then knitted and fixed so as to obtain a teasing effect, after which the teased composite yarn was used for obtaining a carpet for artificial grass. - To this end the yarn was tufted with 300 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m2.
- The carpet thus obtained was subjected to various tests in order to determine the mechanical properties, such as the tretrad test for determining the fibrillation, the Taber test for determining the weight loss and the Leroux test for determining the sliding properties.
- The data that were obtained are shown in table A.
Table A Block copolymer of polypropylene and polyethylene Polyamide Composite yarn of polyamide and block copolymer of polypropylene and polyethylene tretrad post-fibrillation no post-fibrillation no post-fibrillation Taber
(g/m2) loss2000 t 0.38 0.56 0.32 5000 t 0.93 1.49 0.76 sliding Leroux dry 0.790 0.760 0.772 wet 0.537 0.440 z 0.390 - The data in this table show that the artificial grass made from the combination of the block copolymer of polyethylene and polypropylene and polyamide did not exhibit any post-fibrillation, so that a much better result is obtained than with artificial grass made from a polypropylene-containing polymer, that the weight loss results as measured by means of the Taber test are much better than with the artificial grass made from the block copolymer of polyethylene and polyethylene and with the artificial grass made from polyamide, that the sliding results as measured by means of the Leroux test are much better in wet conditions, and that the sliding results of artificial grass made from polyamide are slightly better only in dry conditions. Furthermore it has become apparent that burn tests in accordance with BS 4790 show a low value for the artificial grass according to the invention, which value is comparable with that of artificial grass made from polyamide, but which is better than that of artificial grass made from polypropylene-containing polymer.
- Summarizing the above it can be stated, therefore, that the results obtained with the artificial grass according to the invention are better than the results that could be expected with artificial grass of polyamide or with artificial grass of polypropylene-containing polymer. This shows that a synergetic effect is obtained with the combination of starting materials according to the invention.
- The artificial grass was manufactured in the same manner as in Example 1. A field of artificial grass scattered in with sand was composed, to which end the yarn was tufted with 140 stitches per running metre and a pile height of 34 mm, as a result of which a pile insert weight of 970 g/m2 was obtained. The carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass scattered in with sand, the mechanical properties of the yarn composed of the block copolymer of polyethylene and polypropylene and polyamide were much better than those of yarns for fields of artificial grass which were made from polypropylene and from polyamide.
- Monofilaments were obtained by extrusion of the block copolymer of polyethylene and polypropylene on the one hand and by extrusion of polyamide on the other hand, and after stretching said monofilaments, bands were obtained. A method as indicated in example 1 of
EP-A-0 648 868 was thereby used for the block copolymer, so as to obtain a block copolymer having a yarn number of 8800 dtex consisting of 8 bands, each having a yarn number of 1100 dtex. Then a polyamide having a yarn number of 4000 dtex, which consisted of 6 bands, was twined with a polyamide having a yarn number of 4000 dtex, which consisted of 6 bands, to form a yarn having a yarn number of 8000 dtex, which consisted of 12 bands. In order to be subjected to a tufting operation, the block copolymer yarn was preferably threaded on the uneven positions on the creel of the tufting machines, whilst the polyamid yarn was threaded on the even positions. It is also possible, however, to use other position settings. The carpet for artificial grass, which was built up of separate yarns of block copolymer and polyamide, was tufted with 310 stitches per running metre, and a pile height of 12.5 mm, resulting in a pile insert weight of 1750 g/m2. - The carpet thus obtained was subjected to tests comparable with the tests of Example 1. It has become apparent thereby that, also in the case of a field of artificial grass, whether or not scattered in with sand, the mechanical properties of the field of artificial grass made from the block copolymer of polyethylene and polypropylene and polyamide were much better than those of fields of artificial grass made from polypropylene and from polyamide.
Claims (11)
- A yarn containing polyamide for producing artificial grass, containing in addition to polyamide also a polyolefin compound, characterized in that said polyolefin compound is a block copolymer of polypropylene and polyethylene.
- A yarn according to claim 1, characterized in that said yarn contains 20-80% by weight of block copolymer of polypropylene and polyethylene and 20-80% by weight of polyamide.
- A method of manufacturing a yarn according to claims 1-2 by extruding polymer to form monofilaments, which are subsequently processed into bands, with several bands being twisted to form a yarn, characterized in that monofilaments are extruded from a block copolymer of polypropylene and polyethylene, and from polyamide, or in that monofilaments are extruded from a mixture of a block copolymer of polypropylene and polyethylene on the one hand and polyamide on the other hand.
- A method according to claim 3, characterized in that a yarn is manufactured from the block copolymer of polypropylene and polyethylene, and that a yarn is manufactured from polyamide, whereupon said composite yarn is made from the two yarns of the block copolymer of polyethylene/polypropylene and polyamide, after which artificial grass fibres are made from said composite yarn.
- A method of manufacturing a yarn according to claims 1-2 by starting from a foil which is cut into bands, with several bands being twisted to form a yarn, characterized in that a foil is made from a polymer which, in addition to polyamide, contains a block copolymer of polypropylene and polyethylene, or in that on the one hand a foil is made from a block copolymer of polypropylene and polyethylene and in that on the other hand a foil is made from polyamide, after which the bands obtained from said two foils may be processed to form said composite yarn.
- A method according to claim 5, characterized in that a yarn is manufactured from the block copolymer of polypropylene and polyethylene, and that a yarn is manufactured from polyamide, whereupon artificial grass fibres are made from the composite yarn obtained from said two yarns.
- A method of manufacturing yarns according to claims 1-2, characterized in that said yarn is obtained by co-extrusion, wherein the cladding consists of polyamide, and wherein the core consists of a block copolymer of polypropylene and polyethylene.
- A field of artificial grass made from artificial grass fibres, characterized in that said artificial grass fibres are manufactured from a yarn as defined in claims 1-2.
- A field of artificial grass according to claim 8, characterized in that said artificial grass fibres have been obtained from a composite yarn, composed of the polyamide yarn manufactured in accordance with the method as defined in claims 3-4, and of the yarn of the block copolymer of polypropylene and polyethylene manufactured in accordance with the method as defined in claims 5-6.
- A field of artificial grass according to claim 8, characterized in that said artificial grass fibres have been obtained from the polyamide yarn manufactured in accordance with the method as defined in claims 3-4, and from the yarn of the block copolymer of polypropylene and polyethylene manufactured in accordance with the method as defined in claims 5-6.
- A field of artificial grass according to claims 8-10, characterized in that said field is a field of artificial grass which is scattered in with sand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69808917T DE69808917T3 (en) | 1997-07-17 | 1998-07-16 | ARROW FOR ARTIFICIAL GRASS, METHOD FOR THE PRODUCTION THEREOF, AND ARTIFICIAL GRASS FIELD PRODUCED FROM THIS YARN |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1006606A NL1006606C2 (en) | 1997-07-17 | 1997-07-17 | Yarn for artificial grass, method of manufacturing the yarn and artificial grass field in which said yarn is incorporated. |
NL1006606 | 1997-07-17 | ||
PCT/NL1998/000413 WO1999004074A1 (en) | 1997-07-17 | 1998-07-16 | A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0996781A1 EP0996781A1 (en) | 2000-05-03 |
EP0996781B1 EP0996781B1 (en) | 2002-10-23 |
EP0996781B2 true EP0996781B2 (en) | 2011-12-21 |
Family
ID=19765374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98935399A Expired - Lifetime EP0996781B2 (en) | 1997-07-17 | 1998-07-16 | A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0996781B2 (en) |
AT (1) | ATE226652T1 (en) |
AU (1) | AU743445B2 (en) |
DE (1) | DE69808917T3 (en) |
ES (1) | ES2187985T5 (en) |
NL (1) | NL1006606C2 (en) |
NZ (1) | NZ502027A (en) |
WO (1) | WO1999004074A1 (en) |
Families Citing this family (13)
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US6344026B1 (en) | 1998-04-08 | 2002-02-05 | Senorx, Inc. | Tissue specimen encapsulation device and method thereof |
EP1457600A1 (en) | 2003-03-05 | 2004-09-15 | Domo Cabrita | Synthetic turf |
EP1739233B1 (en) | 2003-05-28 | 2010-03-03 | Lankhorst Pure Composites B.V. | Yarn for an artificial turf ground cover, artificial turf ground cover and playing field including such a yarn |
NL1026239C2 (en) | 2004-05-19 | 2005-11-22 | Ten Cate Thiolon Bv | Method for manufacturing a plastic fiber for use in an artificial grass sports field as well as such a plastic fiber. |
NL1027878C2 (en) * | 2004-12-24 | 2006-06-27 | Desseaux H Tapijtfab | Artificial grass constructed from fibers consisting of a core and a mantle, as well as an artificial grass field built from it. |
NL1033949C2 (en) | 2007-06-07 | 2008-12-09 | Desseaux H Tapijtfab | Artificial grass constructed from fibers consisting of a core and a mantle, as well as an artificial grass field built from it. |
NL1035682C2 (en) | 2008-07-10 | 2010-01-12 | Desseaux H Tapijtfab | Synthetic turf field. |
WO2010075098A1 (en) | 2008-12-15 | 2010-07-01 | Textile Management Associates, Inc. | Method of recycling synthetic turf and infill product |
US8834148B2 (en) | 2009-03-12 | 2014-09-16 | Oerlikon Textile Gmbh & Co. Kg | Apparatus for the production of a turf yarn |
EP2374917B1 (en) * | 2010-04-07 | 2013-02-13 | Dow Global Technologies LLC | Artificial turf yarn |
CN103906866A (en) | 2011-10-20 | 2014-07-02 | 塔克特公司 | Process for making artificial turf fibers |
NL2014906B1 (en) | 2015-06-02 | 2017-01-31 | Desso Sports B V | Method for applying fibers to a substrate. |
CN113278217A (en) * | 2021-05-06 | 2021-08-20 | 淮安腾达色母有限公司 | Flexible wear-resistant artificial ribbed lawn thread and preparation method thereof |
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Also Published As
Publication number | Publication date |
---|---|
ES2187985T3 (en) | 2003-06-16 |
ES2187985T5 (en) | 2012-04-26 |
AU8466198A (en) | 1999-02-10 |
EP0996781A1 (en) | 2000-05-03 |
NZ502027A (en) | 2000-10-27 |
WO1999004074A1 (en) | 1999-01-28 |
ATE226652T1 (en) | 2002-11-15 |
DE69808917T2 (en) | 2003-06-18 |
DE69808917T3 (en) | 2012-07-26 |
DE69808917D1 (en) | 2002-11-28 |
NL1006606C2 (en) | 1999-01-19 |
EP0996781B1 (en) | 2002-10-23 |
AU743445B2 (en) | 2002-01-24 |
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