EP0620878B1 - Strip floor-covering for sports surfaces, in particular synthetic-grass surfaces - Google Patents

Strip floor-covering for sports surfaces, in particular synthetic-grass surfaces Download PDF

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Publication number
EP0620878B1
EP0620878B1 EP92923241A EP92923241A EP0620878B1 EP 0620878 B1 EP0620878 B1 EP 0620878B1 EP 92923241 A EP92923241 A EP 92923241A EP 92923241 A EP92923241 A EP 92923241A EP 0620878 B1 EP0620878 B1 EP 0620878B1
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EP
European Patent Office
Prior art keywords
layer
floor
water
covering
web
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Expired - Lifetime
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EP92923241A
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German (de)
French (fr)
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EP0620878A1 (en
Inventor
Ulrich Bauer
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EN-TOUT-CAS INTELLECTUAL PROPERTY BV
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EN TOUT CAS INTELLECTUAL PROPE
En-Tout-Cas Intellectual Property Bv
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H11/00—Non-woven pile fabrics
    • D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
    • 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
    • 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
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/045—Vinyl (co)polymers
    • D06N2203/047—Arromatic vinyl (co)polymers, e.g. styrene
    • 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
    • D06N2205/00—Condition, form or state of the materials
    • D06N2205/04—Foam
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/126—Permeability to liquids, absorption
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/06—Building materials
    • D06N2211/066—Floor coverings
    • 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
    • D06N2213/00—Others characteristics
    • D06N2213/02—All layers being of the same kind of material, e.g. all layers being of polyolefins, all layers being of polyesters

Definitions

  • the invention relates to a floor covering sheet designed as a pile for sports surfaces, in particular an artificial turf, with an opening-bearing and therefore water-permeable carrier sheet, with pole elements attached to the latter, forming the pole, and with a thick-elastic plastic layer made of an open-cell foam plastic arranged on the underside of the carrier sheet.
  • So-called artificial turf has become widely used as floor coverings for sports surfaces, which are knitted, knitted, woven, woven or tufted textile products made from plastic tapes and / or plastic yarns in the form of a so-called pile fabric.
  • the pole elements simulating the blades of grass are usually made from plastic tapes which penetrate the carrier web and are fixed in it by a textile integration and / or (the latter in particular in the case of so-called tufting goods) by a partial or full-area back coating of the carrier web by means of a plastic compound.
  • the carrier sheet of known artificial turf Since the requirement is placed in particular on outdoor sports surfaces that the flooring is permeable to water, the carrier sheet of known artificial turf has openings, and with a partial back coating the latter does not remove the water permeability of the flooring.
  • a full-surface back coating in the form of a thick, elastic plastic layer are known, which is a plastic layer made of closed-cell foam plastic; In such a case, the back coating must be perforated to make the floor covering permeable to water.
  • the actual subject of DE-A-38 35 880 is also an artificial turf floor covering, the upper side of which is formed by a pole which simulates the blades of grass and which is anchored in an underlying, water-permeable carrier web.
  • a nonwoven web is arranged at a distance below this carrier web, which, like the carrier web, should be permeable to water, but should also have water-storing properties.
  • This nonwoven web carries on her The upper side is arranged in a grid pattern, in particular hemispherical cushion elements made of a closed-cell plastic foam, and the rest of the space between the carrier web and the nonwoven web is filled with pourable material (granules). Water stored in the nonwoven web can therefore at most pass from the nonwoven web up to the carrier web due to any capillary effects of the granulate bed.
  • the invention had for its object to provide a water-permeable floor covering designed as a pile for sports surfaces, in particular an artificial turf, which also has water-storing properties, but which, after moistening the surface of the covering, maintains the desired example properties longer than the known floor coverings described above.
  • this object can be achieved according to the invention in that a storage layer made of a nonwoven fabric, a needle felt or a heavy fabric is arranged on the underside of the plastic layer and the plastic layer is designed such that it is covered when walking on the floor covering sheet has a pump effect effecting water transport from the storage layer to the carrier web.
  • a nonwoven fabric, a needle felt or a heavy fabric can retain much more water at the same volume, ie store it than the known open-cell foam plastics, so that with the help of such a storage layer the floor covering web according to the invention remains moist longer than the known floor coverings described above.
  • the according to the Invention provided and a pumping effect plastic layer leads to the fact that the return transport of the water originally accumulated on the top of the floor covering from the water reservoir to the upper regions of the floor covering takes place precisely when the desired exemplary properties are required, namely while the floor covering is being used.
  • the plastic layer made of an open-cell foam plastic consists, for example, of a latex foam, a polyurethane foam or a foam rubber.
  • the storage layer is formed by a nonwoven fabric, which can adhesively store several times its own weight in water.
  • Nonwoven fabrics made of a non-rotting material are preferred, which of course also applies to all elements of the floor covering according to the invention.
  • the pole elements have anchoring feet arranged on the underside of the carrier web, it being particularly advantageous if these lie between the carrier web and the foam plastic layer;
  • the foam plastic layer in particular laminated to the back of the carrier web, serves to improve the fixation of the pole elements in the carrier web, and the anchoring feet of the pole elements are covered by the foam plastic layer and the storage layer, so that they do not become the same when laying the floor covering on a rough surface Are at risk of being chafed as a result of the floor covering being used.
  • butadiene styrene is recommended as the plastic for the foam pumping layer which brings about the return pump effect;
  • the carrier web, pole elements, foam plastic layer and storage layer are made of the same plastic.
  • the drawing shows a carrier web 10, which is a basic tufting product, in particular a fabric made of plastic tapes.
  • pole elements 12 are anchored, which were introduced into the carrier web 10 by tufts and are formed by plastic tapes. In side view, they are approximately U-shaped and each form an anchoring foot 12a on the underside of the carrier web.
  • a foam plastic layer 14 is laminated to the underside of the tufted goods 10, 12, which consists of an open-cell foam plastic and is, according to the invention, elastic in thickness.
  • a nonwoven layer 16 is laminated to the underside of the foam plastic layer 14, which layer forms the water storage layer according to the invention.
  • the desired storage capacity can be achieved and set by the thickness, density, structure and type of fiber material of the nonwoven layer 16.
  • the pores of the foam plastic layer 14 enable water to be transported by gravity through the foam plastic layer 14 into the fiber fleece layer 16 and as a result of the capillary action or the pumping action that occurs when the floor covering is covered, from the fiber fleece layer 16 back into the actual artificial turf layer 10, 12 and in particular through it water-permeable carrier web 10 through to the surface of the artificial turf layer.
  • the water permeability of the carrier web 10 is also to be noted that this can be ensured and adjusted in a variety of ways, for. B. by relatively thick needles when tufting, by the type and density of the textile material used for the production of the carrier web 10, for. B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Paints Or Removers (AREA)
  • Floor Finish (AREA)

Abstract

Described is a pile-fabric strip floor-covering for sports surfaces, in particular synthetic-grass surfaces. The floor-covering has a substrate which has apertures in it and is therefore permeable to water. Attached to the substrate are pile elements which form the pile, plus a thick elastic layer of plastic material on the underside of the substrate. To increase the water-retention capacity of the floor-covering, the plastic layer is made of open-cell cellular-plastic material, and there is a storage layer with water-retention properties on the underside of the cellular-plastic layer.

Description

Die Erfindung betrifft eine als Polware ausgebildete Bodenbelagsbahn für Sportflächen, insbesondere einen Kunstrasen, mit einer Öffnungen aufweisenden und deshalb wasserdurchlässigen Trägerbahn, mit an letzterer befestigten, den Pol bildenden Polelementen sowie einer an der Unterseite der Trägerbahn angeordneten dickenelastischen Kunststoffschicht aus einem offenzelligen Schaumkunststoff.The invention relates to a floor covering sheet designed as a pile for sports surfaces, in particular an artificial turf, with an opening-bearing and therefore water-permeable carrier sheet, with pole elements attached to the latter, forming the pole, and with a thick-elastic plastic layer made of an open-cell foam plastic arranged on the underside of the carrier sheet.

Als Bodenbeläge für Sport flächen haben sich in erheblichem Umfang sogenannte Kunstrasen durchgesetzt, bei denen es sich um aus Kunststoffbändchen und/oder Kunststoffgarnen hergestellte gestrickte, gewirkte, gewebte oder getuftete textile Erzeugnisse in Form einer sogenannten Polware handelt. Meist werden die die Grashalme simulierenden Polelemente aus Kunststoffbändchen hergestellt, welche die Trägerbahn durchsetzen und in dieser durch eine textile Einbindung und/oder (letzteres insbesondere bei einer sogenannten Tuftingware) durch eine partielle oder vollflächige Rückenbeschichtung der Trägerbahn mittels einer Kunststoffmasse fixiert sind.So-called artificial turf has become widely used as floor coverings for sports surfaces, which are knitted, knitted, woven, woven or tufted textile products made from plastic tapes and / or plastic yarns in the form of a so-called pile fabric. The pole elements simulating the blades of grass are usually made from plastic tapes which penetrate the carrier web and are fixed in it by a textile integration and / or (the latter in particular in the case of so-called tufting goods) by a partial or full-area back coating of the carrier web by means of a plastic compound.

Da insbesondere an im Freien befindliche Sportflächen die Forderung gestellt wird, daß der Bodenbelag wasserdurchlässig ist, besitzt die Trägerbahn bekannter Kunstrasen Öffnungen, und bei einer partiellen Rückenbeschichtung beseitigt letztere die Wasserdurchlässigkeit des Bodenbelags nicht. Es sind aber auch solche Bodenbeläge mit einer vollflächigen Rückenbeschichtung in Form einer dickenelastischen Kunststoffschicht bekannt, bei der es sich um eine Kunststoffschicht aus geschlossenzelligem Schaumkunststoff handelt; um in einem solchen Fall die Wasserdurchlässigkeit des Bodenbelags herbeizuführen, muß die Rückenbeschichtung gelocht werden.Since the requirement is placed in particular on outdoor sports surfaces that the flooring is permeable to water, the carrier sheet of known artificial turf has openings, and with a partial back coating the latter does not remove the water permeability of the flooring. However, such floor coverings with a full-surface back coating in the form of a thick, elastic plastic layer are known, which is a plastic layer made of closed-cell foam plastic; In such a case, the back coating must be perforated to make the floor covering permeable to water.

Alle diese bekannten, vorstehend beschriebenen wasserdurchlässigen Bodenbeläge haben den Nachteil, daß an der Oberfläche des Bodenbelags anfallendes Wasser unkontrolliert und verhältnismäßig rasch durch den Bodenbelag hindurchtritt und letzterer dann verhältnismäßig schnell wieder abtrocknet. Es hat sich aber gezeigt, daß die Bespieleigenschaften eines Bodenbelags der in Rede stehenden Art, insbesondere also eines sogenannten Kunstrasens, ganz wesentlich davon abhängen, ob die Belagsoberfläche etwas feucht ist - letzteres führt zu sehr viel besseren Bespieleigenschaften.All these known, water-permeable floor coverings described above have the disadvantage that water accumulating on the surface of the floor covering passes through the floor covering in an uncontrolled and relatively rapid manner and then dries the latter again relatively quickly. However, it has been shown that the example properties of a floor covering of the type in question, in particular a so-called artificial turf, depend very much on whether the surface of the surface is somewhat damp - the latter leads to much better example properties.

Aus der DE-A-38 35 880, Sp. 1, Zeilen 20 - 28 geht aber auch schon ein Bodenbelag der eingangs erwähnten Art hervor, dessen an die Unterseite der Trägerbahn des Kunstrasens ankaschierte Kunststoffschicht aus einem offenzelligen Schaumkunststoff dem Zweck dienen soll, Feuchtigkeit und insbesondere Regenwasser zurückzuhalten, eine Funktion, welche auch ein offenzelliger Schaumkunststoff nur höchst unzureichend übernehmen kann - bei einem Bodenbelag für Sportflächen kann man eine solche Schaumkunststoffschicht wegen ihrer dickenelastischen Eigenschaften nicht mit beliebig großer Dicke ausführen, weil sich sonst nicht mehr akzeptable Bespieleigenschaften der Sportfläche ergeben.From DE-A-38 35 880, column 1, lines 20-28 there is already a floor covering of the type mentioned at the beginning, the plastic layer of an open-cell foam plastic laminated to the underside of the carrier track of the artificial turf is intended to serve the purpose of moisture and in particular to hold back rainwater, a function that even an open-cell foam plastic can only assume to a very inadequate degree - with a floor covering for sports surfaces, such a foam plastic layer cannot be made with any thickness due to its thickness-elastic properties, because otherwise there would no longer be acceptable example properties of the sports surface .

Eigentlicher Gegenstand der DE-A-38 35 880 ist ferner ein Kunstrasen-Bodenbelag, dessen Oberseite von einem die Grashalme simulierenden Pol gebildet wird, welcher in einer darunterliegenden, wasserdurchlässigen Trägerbahn verankert ist. Im Abstand unterhalb dieser Trägerbahn ist eine Vliesstoffbahn angeordnet, die ebenso wie die Trägerbahn wasserdurchlässig sein, zusätzlich jedoch wasserspeichernde Eigenschaften haben soll. Diese Vliesstoffbahn trägt auf ihrer Oberseite rasterförmig angeordnet, insbesondere halbkugelförmig gestaltete Polsterelemente aus einem geschlossenzelligen Kunststoffschaum, und im übrigen ist der Zwischenraum zwischen der Trägerbahn und der Vliesstoffbahn mit schüttfähigem Material (Granulat) gefüllt. In der Vliesstoffbahn gespeichertes Wasser kann also höchstens aufgrund eventuell gegebener Kapillareffekte der Granulatschüttung von der Vliesstoffbahn nach oben bis zur Trägerbahn gelangen.The actual subject of DE-A-38 35 880 is also an artificial turf floor covering, the upper side of which is formed by a pole which simulates the blades of grass and which is anchored in an underlying, water-permeable carrier web. A nonwoven web is arranged at a distance below this carrier web, which, like the carrier web, should be permeable to water, but should also have water-storing properties. This nonwoven web carries on her The upper side is arranged in a grid pattern, in particular hemispherical cushion elements made of a closed-cell plastic foam, and the rest of the space between the carrier web and the nonwoven web is filled with pourable material (granules). Water stored in the nonwoven web can therefore at most pass from the nonwoven web up to the carrier web due to any capillary effects of the granulate bed.

Der Erfindung lag die Aufgabe zugrunde, einen als Polware ausgebildeten wasserdurchlässigen Bodenbelag für Sportflächen, insbesondere einen Kunstrasen zu schaffen, welcher gleichfalls wasserspeichernde Eigenschaften besitzt, jedoch nach einer Befeuchtung der Belagsoberfläche länger als die vorstehend geschilderten bekannten Bodenbeläge die erwünschten Bespieleigenschaften beibehält.The invention had for its object to provide a water-permeable floor covering designed as a pile for sports surfaces, in particular an artificial turf, which also has water-storing properties, but which, after moistening the surface of the covering, maintains the desired example properties longer than the known floor coverings described above.

Ausgehend von einer Bodenbelagsbahn der eingangs erwähnten Art läßt sich diese Aufgabe erfindungsgemäß dadurch lösen, daß an der Unterseite der Kunststoffschicht eine wasserspeichernde Eigenschaften aufweisende Speicherschicht aus einem Faservlies, einem Nadelfilz oder einem Schwergewebe angeordnet und die Kunststoffschicht derart ausgebildet ist, daß sie beim Begehen der Bodenbelagsbahn einen einen Wassertransport von der Speicherschicht zur Trägerbahn bewirkenden Pumpeffekt hat.Starting from a floor covering sheet of the type mentioned at the outset, this object can be achieved according to the invention in that a storage layer made of a nonwoven fabric, a needle felt or a heavy fabric is arranged on the underside of the plastic layer and the plastic layer is designed such that it is covered when walking on the floor covering sheet has a pump effect effecting water transport from the storage layer to the carrier web.

Ein Faservlies, ein Nadelfilz oder ein Schwergewebe kann beim gleichem Volumen wesentlich mehr Wasser zurückhalten, d. h. speichern, als die bekannten offenzelligen Schaumkunststoffe, so daß mit Hilfe einer solchen Speicherschicht die erfindungsgemäße Bodenbelagsbahn länger feucht bleibt als die vorstehend geschilderten bekannten Bodenbeläge. Die gemäß der Erfindung vorgesehene und einen Pumpeffekt bewirkende Kunststoffschicht führt aber dazu, daß der Rücktransport des ursprünglich an der Oberseite des Bodenbelags angefallenen Wassers vom Wasserspeicher in die oberen Regionen des Bodenbelags gerade dann erfolgt, wenn die erwünschten Bespieleigenschaften gefordert werden, nämlich während der Nutzung des Bodenbelags.A nonwoven fabric, a needle felt or a heavy fabric can retain much more water at the same volume, ie store it than the known open-cell foam plastics, so that with the help of such a storage layer the floor covering web according to the invention remains moist longer than the known floor coverings described above. The according to the Invention provided and a pumping effect plastic layer leads to the fact that the return transport of the water originally accumulated on the top of the floor covering from the water reservoir to the upper regions of the floor covering takes place precisely when the desired exemplary properties are required, namely while the floor covering is being used.

Die Kunststoffschicht aus einem offenzelligen Schaumkunststoff besteht beispielsweise aus einem Latexschaum, einem Polyurethanschaum oder einem Moosgummi.The plastic layer made of an open-cell foam plastic consists, for example, of a latex foam, a polyurethane foam or a foam rubber.

Bei Regen oder einer Befeuchtung des Bodenbelags auf dessen Oberseite anfallendes Wasser tritt durch die Öffnungen der Trägerbahn hindurch in die offenzellige Schaumkunststoffschicht ein und gelangt von dieser aufgrund der Schwerkraft und/oder einer Kapillarwirkung in die Speicherschicht, welche das Wasser aufsaugt, bis ihr Speichervolumen erschöpft ist: nicht mehr speicherbares und an der Belagsoberfläche anfallendes Wasser tritt durch die Speicherschicht hindurch nach unten aus dem Bodenbelag aus und wird in den Unterbau abgeleitet oder fließt auf der Oberfläche eines wasserundurchlässigen Unterbaus seitlich ab. Nach Ende des Regens bzw. der Beregnung des Bodenbelags trocknet dessen Oberfläche z. B. durch Sonne und Wind relativ schnell ab, beim Bespielen des erfindungsgemaßen Bodenbelags wird jedoch durch Druck auf die Belagsoberfläche (z. B. durch den Fuß eines Spielers) der offenzellige Schaumkunststoff zusammengedrückt und dadurch die Belagsoberfläche wieder etwas angefeuchtet, so daß sich der erwünschte Gleiteffekt durch einen Wasserfilm wieder einstellt (Pump- and Play-System). Dieser Vorgang wiederholt sich so oft, bis die Speicherschicht den offenzelligen Schaumkunststoff nicht mehr mit Kapillarwasser füllen kann.When rain or a moistening of the floor covering on the upper side occurs, water enters through the openings of the carrier web into the open-cell foam plastic layer and, due to gravity and / or a capillary action, reaches the storage layer, which absorbs the water until its storage volume is exhausted : Water that can no longer be stored and accumulates on the surface of the covering emerges from the floor covering through the storage layer and is drained off into the substructure or flows off laterally on the surface of a waterproof substructure. After the rain or the raining of the floor covering, the surface dries z. B. from sun and wind relatively quickly, but when pressing on the flooring according to the invention, the open-cell foam plastic is compressed by pressure on the surface of the surface (e.g. by the foot of a player) and thereby the surface of the surface is moistened again, so that the desired The sliding effect is restored by a water film (pump and play system). This process is repeated until the storage layer can no longer fill the open-cell foam plastic with capillary water.

Versuche an einer mit dem erfindungsgemäßen Bodenbelag belegten Sportfläche haben in den Sommermonaten bei mitteleuropäischem Klima gezeigt, daß der erfindungsgemäße Bodenbelag nach einmaligem Bewässern einen ganzen Tag bespielbar bleibt, d. h. die erwünschten Bespieleigenschaften beibehält. Im Vergleich zu herkömmlichen Bodenbelägen erfordert der erfindungsgemäße Bodenbelag nur ein Drittel bis ein Viertel des sonst erforderlichen Bewässerungswassers, um die gleichen spieltechnischen Eigenschaften wie bei den bekannten Bodenbelägen herbeizuführen.Experiments on a sports surface covered with the floor covering according to the invention have shown in the summer months in a central European climate that the floor covering according to the invention remains playable for a whole day after being watered once, ie maintains the desired playing properties. Compared to conventional floor coverings, the floor covering according to the invention requires only a third to a quarter of the irrigation water that is otherwise required in order to bring about the same technical playing properties as with the known floor coverings.

Bei bevorzugten Ausführungsformen des erfindungsgemäßen Bodenbelags wird die Speicherschicht von einem Faservlies gebildet, welches ein Mehrfaches seines eigenen Gewichts an Wasser adhäsiv speichern kann. Bevorzugt werden dabei Faservliese aus einem nicht-verrottendem Material, was im übrigen natürlich für alle Elemente des erfindungsgemäßen Bodenbelags gilt.In preferred embodiments of the floor covering according to the invention, the storage layer is formed by a nonwoven fabric, which can adhesively store several times its own weight in water. Nonwoven fabrics made of a non-rotting material are preferred, which of course also applies to all elements of the floor covering according to the invention.

Wie bei bekannten Bodenbelägen weisen auch bei bevorzugten Ausführungsformen des erfindungsgemäßen Bodenbelags die Polelemente auf der Trägerbahnunterseite angeordnete Verankerungsfüße auf, wobei es besonders vorteilhaft ist, wenn diese zwischen der Trägerbahn und der Schaumkunststoffschicht liegen; auf diese Weise dient die an die Rückseite der Trägerbahn insbesondere ankaschierte Schaumkunststoffschicht der Verbesserung der Fixierung der Polemente in der Trägerbahn, und die Verankerungsfüße der Polelemente werden durch die Schaumkunststoffschicht und die Speicherschicht abgedeckt, so daß sie beim Verlegen des Bodenbelags auf einem rauhen Untergrund nicht der Gefahr unterliegen, infolge des Bespielens des Bodenbelags durchgescheuert zu werden.As with known floor coverings, in preferred embodiments of the floor covering according to the invention, the pole elements have anchoring feet arranged on the underside of the carrier web, it being particularly advantageous if these lie between the carrier web and the foam plastic layer; In this way, the foam plastic layer, in particular laminated to the back of the carrier web, serves to improve the fixation of the pole elements in the carrier web, and the anchoring feet of the pole elements are covered by the foam plastic layer and the storage layer, so that they do not become the same when laying the floor covering on a rough surface Are at risk of being chafed as a result of the floor covering being used.

Als Kunststoff für die den Rückpumpeffekt bewerkstelligende Schaumkunststoffschicht wird insbesondere Butadienstyrol empfohlen; um einen einfach und vollständig recyclebaren Bodenbelag zu erhalten, bestehen bei anderen bevorzugten Ausführungsformen des erfindungsgemäßen Bodenbelags jedoch Trägerbahn, Polelemente, Schaumkunststoffschicht und Speicherschicht aus demselben Kunststoff.In particular, butadiene styrene is recommended as the plastic for the foam pumping layer which brings about the return pump effect; In order to obtain a floor covering that is simple and completely recyclable, in other preferred embodiments of the floor covering according to the invention, however, the carrier web, pole elements, foam plastic layer and storage layer are made of the same plastic.

Wie bereits erwähnt, empfiehlt es sich, die den Rückpumpeffekt bewerkstelligende offenzellige Schaumkunststoffschicht und die Speicherschicht an die Rückseite der Trägerbahn anzukaschieren, wobei durch die Art des Ankaschierens, insbesondere durch ein entsprechend gewähltes Muster einer Verbindungsschicht, jedoch gewährleistet werden muß, daß an der Belagsoberfläche anfallendes Wasser durch die Trägerbahn, die Schaumkunststoffschicht und die Speicherschicht hindurchtreten kann.As already mentioned, it is advisable to laminate the open-cell foam plastic layer and the storage layer to the back of the carrier web, which, however, must be ensured by the type of lamination, in particular by an appropriately chosen pattern of a connecting layer, that that accumulating on the surface of the covering Water can pass through the carrier web, the foam plastic layer and the storage layer.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der beigefügten schematischen zeichnerischen Darstellung und der nachfolgenden Beschreibung einer besonders bevorzugten Ausführungsform eines erfindungsgemäßen Bodenbelags; die Zeichnung zeigt einen Schnitt durch den als Tuftingware ausgebildeten Bodenbelag.Further features, advantages and details of the invention result from the attached schematic drawing and the following description of a particularly preferred embodiment of a floor covering according to the invention; the drawing shows a section through the floor covering designed as tufted goods.

Die Zeichnung zeigt eine Trägerbahn 10, bei der es sich um eine Tuftinggrundware handelt, insbesondere um ein Gewebe aus Kunststoffbändchen. In dieser sind Polelemente 12 verankert, welche durch Tuften in die Trägerbahn 10 eingebracht wurden und von Kunststoffbändchen gebildet werden. Sie sind in der Seitenansicht ungefähr U-förmig ausgebildet und bilden an der Unterseite der Trägerbahn jeweils einen Verankerungsfuß 12a.The drawing shows a carrier web 10, which is a basic tufting product, in particular a fabric made of plastic tapes. In this pole elements 12 are anchored, which were introduced into the carrier web 10 by tufts and are formed by plastic tapes. In side view, they are approximately U-shaped and each form an anchoring foot 12a on the underside of the carrier web.

An die Unterseite der Tuftingware 10, 12 ist eine Schaumkunststoffschicht 14 ankaschiert, die aus einem offenzelligem Schaumkunststoff besteht und erfindungsgemäß dickenelastisch ist. Schließlich ist an die Unterseite der Schaumkunststoffschicht 14 eine Faservliesschicht 16 ankaschiert, welche die erfindungsgemäße Wasserspeicherschicht bildet. Durch die Dicke, Dichte, Struktur und die Art des Fasermaterials der Faservliesschicht 16 läßt sich die erwünschte Speicherkapazität erreichen und einstellen.A foam plastic layer 14 is laminated to the underside of the tufted goods 10, 12, which consists of an open-cell foam plastic and is, according to the invention, elastic in thickness. Finally, a nonwoven layer 16 is laminated to the underside of the foam plastic layer 14, which layer forms the water storage layer according to the invention. The desired storage capacity can be achieved and set by the thickness, density, structure and type of fiber material of the nonwoven layer 16.

Die Poren der Schaumkunststoffschicht 14 ermöglichen einen durch die Schwerkraft bewirkten Wassertransport durch die Schaumkunststoffschicht 14 hindurch in die Faservliesschicht 16 und infolge der Kapillarwirkung bzw. der beim Bespielen des Bodenbelags auftretenden Pumpwirkung aus der Faservliesschicht 16 zurück in die eigentliche Kunstrasenschicht 10, 12 und insbesondere durch deren wasserdurchlässige Trägerbahn 10 hindurch an die Oberfläche der Kunstrasenschicht. Zur Wasserdurchlässigkeit der Trägerbahn 10 ist noch zu bemerken, daß diese in vielfätiger Weise gewährleistet und eingestellt werden kann, so z. B. durch verhältnismäßig dicke Nadeln beim Tuften, durch die Art und Dichte des für die Herstellung der Trägerbahn 10 verwendeten textilen Materials, z. B. also durch die Breite der für die Herstellung eines Gewebes verwendeten Kunststoffbändchen und die Abstände zwischen den von den Bändchen gebildeten Kett- und Schußfäden voneinander sowie durch die Art einer eventuell eingesetzten Ausrüstung des Trägerbahnmaterials; hierbei handelt es sich jedoch um bekannte Maßnahmen, so daß es einer detaillierten Erläuterung derselben nicht bedarf.The pores of the foam plastic layer 14 enable water to be transported by gravity through the foam plastic layer 14 into the fiber fleece layer 16 and as a result of the capillary action or the pumping action that occurs when the floor covering is covered, from the fiber fleece layer 16 back into the actual artificial turf layer 10, 12 and in particular through it water-permeable carrier web 10 through to the surface of the artificial turf layer. The water permeability of the carrier web 10 is also to be noted that this can be ensured and adjusted in a variety of ways, for. B. by relatively thick needles when tufting, by the type and density of the textile material used for the production of the carrier web 10, for. B. thus by the width of the plastic ribbons used for the production of a fabric and the distances between the warp and weft threads formed by the ribbons from each other and by the type of equipment used for the carrier web material; however, these are known measures, so that a detailed explanation of them is not required.

Claims (4)

  1. Floor-covering web designed as a pile fabric for sports surfaces, in particular synthetic grass surfaces, with a supporting web (10) comprising openings and therefore being water-permeable, pile elements (12) secured to said supporting web and forming the pile as well as a plastic layer (14) arranged on the underside of the supporting web (10), said layer (14) being elastic in the direction of its thickness and made from an open-cell foamed plastic, characterized in that a storage layer (16) having water-storing properties and made from a fiber fleece, a needled felt or a heavy woven fabric is arranged on the underside of the plastic layer (14) and the plastic layer (14) is designed such that it has a pumping effect causing a transport of water from the storage layer (16) to the supporting web (10) when the floor-covering web is walked on.
  2. Floor-covering web as defined in claim 1, characterized in that the pile elements (12) have anchoring feet (12a) arranged on the underside of the supporting web, said feet being located between supporting web (10) and foamed plastic layer (14).
  3. Floor-covering web as defined in claim 1 or 2, characterized in that supporting web (10), pile elements (12), foamed plastic layer (14) and storage layer (16) consist of the same plastics material.
  4. Floor-covering web as defined in any or several of claims 1 - 3, characterized in that the foamed plastic layer (14) consists of butadiene styrene.
EP92923241A 1991-11-05 1992-11-04 Strip floor-covering for sports surfaces, in particular synthetic-grass surfaces Expired - Lifetime EP0620878B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4136341 1991-11-05
DE4136341A DE4136341A1 (en) 1991-11-05 1991-11-05 FLOOR COVERING FOR SPORTS AREAS, ESPECIALLY ARTIFICIAL GRASS
PCT/EP1992/002532 WO1993009293A1 (en) 1991-11-05 1992-11-04 Strip floor-covering for sports surfaces, in particular synthetic-grass surfaces

Publications (2)

Publication Number Publication Date
EP0620878A1 EP0620878A1 (en) 1994-10-26
EP0620878B1 true EP0620878B1 (en) 1996-02-07

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EP92923241A Expired - Lifetime EP0620878B1 (en) 1991-11-05 1992-11-04 Strip floor-covering for sports surfaces, in particular synthetic-grass surfaces

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EP (1) EP0620878B1 (en)
JP (1) JPH07505192A (en)
AT (1) ATE134009T1 (en)
AU (1) AU2919092A (en)
BR (1) BR9206714A (en)
CA (1) CA2122926A1 (en)
DE (2) DE4136341A1 (en)
DK (1) DK0620878T3 (en)
ES (1) ES2085653T3 (en)
NO (1) NO941646D0 (en)
WO (1) WO1993009293A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311247B (en) * 1996-03-23 1999-05-12 Nordon Enterprises Ltd Artificial turf carpet
WO1999029963A1 (en) * 1997-12-11 1999-06-17 Kolon F & T, Inc. Substructure material, artificial lawn system made therefrom and method for producing such a material
DE19822542C1 (en) * 1998-05-20 1999-12-02 Claus G Matthias Artificial grass with hollow stalks
US6740387B1 (en) 1998-06-09 2004-05-25 2752-3273 Quebec Inc. Synthetic turf game surface
US6602113B2 (en) 1999-12-08 2003-08-05 2752-3273 Quebec Inc. Method for forming synthetic turf game surfaces
NL1015451C2 (en) 2000-06-15 2001-12-19 Ten Cate Nicolon B V Artificial turf for sports fields.
NL1038031C2 (en) * 2010-06-11 2011-12-19 Spekpannekoek B V ARTIFICIAL GRASS SPORT FIELD.
WO2015135972A1 (en) * 2014-03-12 2015-09-17 Permavoid Limited Sports field structure and method for forming the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1145073A (en) * 1965-04-09 1969-03-12 Monsanto Co Pile fabric simulating grass
DE1635484A1 (en) * 1967-03-14 1971-05-13 Delden & Co Composite textile bodies which can be used as carpets or carpeting and processes for their manufacture
US3537946A (en) * 1967-03-30 1970-11-03 Stein Hall & Co Inc Method of combining textile materials and products thereof
US3661691A (en) * 1970-12-28 1972-05-09 Pandel Bradford Flame-retardant vinyl foam carpet and method
US4637942A (en) * 1985-09-23 1987-01-20 Tecsyn Canada Limited Synthetic grass playing field surface
DE3835880A1 (en) * 1988-10-21 1990-04-26 Sportboden Systeme Gmbh Resilient mat for ground coverings of sports and leisure areas
US4902540A (en) * 1988-11-17 1990-02-20 Martino Louis D Modular athletic turf

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DE59205322D1 (en) 1996-03-21
DK0620878T3 (en) 1996-06-03
DE4136341A1 (en) 1993-05-06
CA2122926A1 (en) 1993-05-06
NO941646L (en) 1994-06-27
WO1993009293A1 (en) 1993-05-13
BR9206714A (en) 1995-10-24
AU2919092A (en) 1993-06-07
JPH07505192A (en) 1995-06-08
ATE134009T1 (en) 1996-02-15
EP0620878A1 (en) 1994-10-26
NO941646D0 (en) 1994-05-04
ES2085653T3 (en) 1996-06-01

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