CA2122924A1 - Floor-covering for sports surfaces - Google Patents
Floor-covering for sports surfacesInfo
- Publication number
- CA2122924A1 CA2122924A1 CA002122924A CA2122924A CA2122924A1 CA 2122924 A1 CA2122924 A1 CA 2122924A1 CA 002122924 A CA002122924 A CA 002122924A CA 2122924 A CA2122924 A CA 2122924A CA 2122924 A1 CA2122924 A1 CA 2122924A1
- Authority
- CA
- Canada
- Prior art keywords
- web
- fibrous material
- floor covering
- material web
- supporting web
- 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.)
- Abandoned
Links
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
- 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
-
- 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
Abstract
A B S T R A C T
A floor covering designed as a pile fabric for sports surfaces, in particular synthetic turfs, with a supporting web (10) comprising openings and therefore being water-permeable, a fibrous material web (14) needled thereto as well as pile elements (12) secured to the supporting web and forming the pile; to prolong the playability of the floor covering following watering, the fibrous material web is arranged on the underside of the supporting web and fiber tufts (14a) produced during needling of the fibrous material web project upwardly from the fibrous material web through the supporting web.
A floor covering designed as a pile fabric for sports surfaces, in particular synthetic turfs, with a supporting web (10) comprising openings and therefore being water-permeable, a fibrous material web (14) needled thereto as well as pile elements (12) secured to the supporting web and forming the pile; to prolong the playability of the floor covering following watering, the fibrous material web is arranged on the underside of the supporting web and fiber tufts (14a) produced during needling of the fibrous material web project upwardly from the fibrous material web through the supporting web.
Description
~ ~12292~
Floor Covering for Sports Surfaces The invention relates to a floor covering designed as a pile fabric for sports surfaces, in particular a so-called synthetic turf, with a supporting web comprising openings and therefore being water-permeable, a fibrous material web needled thereto as well as pile elements secured to the supporting web and forming the pile. The invention relates, in particular, to such a floor covering of the aforementioned type, in which the pile elements are knitted into the material webs.
Known floor or ground coverings in the form of a pile fabric, which are designed, in particu~.ar, as syn~hetic turfs, are produced as a tufted fabric with a textile supporting web, as a knitted fabric, a weft-knit fabric or the like and the supporting web is then, if required, provided with a back coating covering part or all of the surface, whereby in the latter case it must, however, be ensured by way of openings in the back coa~ing that the synthetic turf is permeable to water;
this is important because in the case of a floor coveriny of this -type which is laid outdoors rain water and melted snow and ice must be able to flow off downwards through the floor covering in the same way as the moisture applied to the top of this floor covering when it is watered - in this connection it must be pointed out that optimum playing conditions of such a ~loor coverlng result only when the surface of the covering is somewhat damp.
I
I
-~` 2~1 %292~
:
Known, water-permeable floor coverings in the form of a synthetic turf dry out relatively quickly after they have been watered, in particular under the influence of the sun and wind in the case of sports surfaces laid outdoors. For this rsason, the object underlying the invention was to provide a water-permeable floor covering designed as a pile fabric for sports surfaces which, after watering, has the desired playing conditions for a longer time than the known synthetic turfs.
This object may be accomplished in accordance with the invention in that a fibrous material web needled to the supporting web is arranged on the underside thereof and fiber tufts produced during needling of the fibrous material web project upwardly from the fibrous ma~erial web through the supporting web. It is particularly advantageous for the fiber tufts pushed upwards through the supporting web during needling to project into the areas between the actual pile. In -the inventive floor covering, -the fibrous material web has a dual function: On the one hand, it acts as a water sto~age means for the water which falls onto the surface of the covering and has passed downwards through the water-permeable supporting web and, on the other hand, water from the fibrous material web acting as a water storage means will be transported, due to a capillary action, through the ;~
supporting web back into the area of the surface of the covering by way of the fiber tufts projecting through the supporting web -as soon as the surface threatens to dry out. This occurs, in particular, when the floor covering is played on and pressure is thereby exerted onto it from above which leads to a compression of the fibrous material web in the playing area. The water storage and retention capacity of the fibrous material web may be determined and selected by a corresponding choice of, for example, the following parameters: Thickness, densi-ty and - , - 2~2232~
structure of the fibrous material web as well as the type of fibers from which it is produced. The fibrous material web could, for example, be a felt or a weft-knit fiber fabric but sven better results can be achieved with a fiber fleece which can store a multiple of its own weight in water.
The needling of a fiber fleece to the supporting web of a synthetic turf is known per se (DE-A-29 35 387); in this known synthetic turf, the fiber fleece is, however, needled to the upper side of the supporting web of the synthetic turf designed as a tufted fabric and the fiber tufts pushed through the supporting web during needling of the fiber fleece project downwardly out of the supporting web between the anchoring feet of the pile elements of this known synthetic -turf. In this known synthetic turf, the fiber fleece is intended, on the one hand, to serve the purpose of covering the supporting web so that its color is not visible from above and, on the other hand, when a coating mass is applied to the underside of the supporting web the fibers pressed downwardly through the supporting web from above have a repellent effect on the coating mass so that the openings in the supporting web which are necessary for the water-permeability of the syn-thetic turf are at least not completely closed by the back coating mass. The object and arrangement of the fiber fleece in this known synthetic turf are, therefore, completely different to those of the inventive floor covering.
During the production of an inventive floor covering, the fibrous material web could as such be needled from below to the supporting web before the pile elements are inserted into the supporting web, e.g. by tufting. I-t is, however, more advantageous for a fibrous material web to be needled to the --' 2 ~ 22~
finished synthetic turf from below during the production of an inventive floor covering since the pile elements then have anchoring feet arranged on the underside of the supporting web which are covered by the fibrous material web. Pile elements which are inserted into the supporting web, above all, by tufting are then better fixed in the supporting web and, in addition, when the floor covering is laid on a rough base the anchoring feet of the pile elements are not subject to the risk of being chafed through owing to the floor covering being played on. In every type of pile fabric, the fiber tufts which have been pushed through the supporting web and project into the area between the pile threads or tapes serve, in addition, to stabilize the actual pile of the floor covering. Finally, the water-permeability of the supporting web is increased due to the fibrous material web being needled thereto.
As a result of the effects described above, an inventive floor covering can be produced without adhesive or a back coating mass and so the inventive floor covering can be produced as a material which can be fully recycled. In order to simplify recycling of the floor covering even more, it is recommended that supporting web, pile elements and fibrous material web all be produced from the same plastics ma~erial and polypropylene, polyethylene, polyamide and polyester have proven to be particularly favorable raw materials.
Finally, the use of a fibrous material web impregnated for strengthening its fibers is recommended. A fibrous material web impregnated with a latex emulsion is particularly advantageous, or the following reason: A sports surface floor or ground covering has to be renewed approximately every 5 - 10 years;
within such a period of time latex will, however, decompose due 2~2292~
,.
to aging and be washed away when the floor covering is sprayed with water so that during recycling of the floor covering only pure plas-tics material still has -to be processed.
Finally, it should be pointed ou~ that the needling of the fibrous material web to the supportin~ web results in a stabilization of the surface of the floor covering and so the required accuracy to size of the floor covering oan be ensured.
If required, an additional material web, e.g. a grid-like woven fabric, a fleece material or the like, can be needled to the supporting web or the back of the weft-knit fabric at the same time as the fibrous material web to stabilize the shape.
Additional features, advantages and details of the invention result from the attached schematic illus-tration as well as the following description of a par-ticularly preferred embodiment of the inventive floor covering; the drawing shows a section through the floor covering designed as a tufted fabric.
The drawing shows a supporting web 10 designed as a tufting base fabric; this web has been produced in the present case from plastic tapes lOa and its water-permeability can be ensured in the most varied of ways, e.g. by the wid-th and density of the plastic tapes lOa, i.e. by the transverse spacing from one another of the plastic tapes forming the warp and weft threads.
Pile elements 12 have been inserted into the supporting web 10 by the tufting process and the anchoring fe~t 12a of these pile elements are located on the rear side of the supportin~ web 10.
Then, a layer of fiber fleece 14 has been needled onto the supporting web 10 from below, whereby holes lOb have resulted in the supporting web 10 and fiber tufts 14a pushed therethrough.
As a result of the layer of fiber fleece 14 being needled to the ~1~2'~2~
supporting web, not only has this layer been secured to the supporting web lO but also the wa-ter-permeability of the supporting web has been increased and, at the same time, it has been ensured that due to a capillary ac~ion brought about by the fiber tufts 14a water stored in the layer of fiber fleece 14 can be conveyed upwards into the area between the pile threads ~; :
formed by the free end regions of the pile elements 12.
Floor Covering for Sports Surfaces The invention relates to a floor covering designed as a pile fabric for sports surfaces, in particular a so-called synthetic turf, with a supporting web comprising openings and therefore being water-permeable, a fibrous material web needled thereto as well as pile elements secured to the supporting web and forming the pile. The invention relates, in particular, to such a floor covering of the aforementioned type, in which the pile elements are knitted into the material webs.
Known floor or ground coverings in the form of a pile fabric, which are designed, in particu~.ar, as syn~hetic turfs, are produced as a tufted fabric with a textile supporting web, as a knitted fabric, a weft-knit fabric or the like and the supporting web is then, if required, provided with a back coating covering part or all of the surface, whereby in the latter case it must, however, be ensured by way of openings in the back coa~ing that the synthetic turf is permeable to water;
this is important because in the case of a floor coveriny of this -type which is laid outdoors rain water and melted snow and ice must be able to flow off downwards through the floor covering in the same way as the moisture applied to the top of this floor covering when it is watered - in this connection it must be pointed out that optimum playing conditions of such a ~loor coverlng result only when the surface of the covering is somewhat damp.
I
I
-~` 2~1 %292~
:
Known, water-permeable floor coverings in the form of a synthetic turf dry out relatively quickly after they have been watered, in particular under the influence of the sun and wind in the case of sports surfaces laid outdoors. For this rsason, the object underlying the invention was to provide a water-permeable floor covering designed as a pile fabric for sports surfaces which, after watering, has the desired playing conditions for a longer time than the known synthetic turfs.
This object may be accomplished in accordance with the invention in that a fibrous material web needled to the supporting web is arranged on the underside thereof and fiber tufts produced during needling of the fibrous material web project upwardly from the fibrous ma~erial web through the supporting web. It is particularly advantageous for the fiber tufts pushed upwards through the supporting web during needling to project into the areas between the actual pile. In -the inventive floor covering, -the fibrous material web has a dual function: On the one hand, it acts as a water sto~age means for the water which falls onto the surface of the covering and has passed downwards through the water-permeable supporting web and, on the other hand, water from the fibrous material web acting as a water storage means will be transported, due to a capillary action, through the ;~
supporting web back into the area of the surface of the covering by way of the fiber tufts projecting through the supporting web -as soon as the surface threatens to dry out. This occurs, in particular, when the floor covering is played on and pressure is thereby exerted onto it from above which leads to a compression of the fibrous material web in the playing area. The water storage and retention capacity of the fibrous material web may be determined and selected by a corresponding choice of, for example, the following parameters: Thickness, densi-ty and - , - 2~2232~
structure of the fibrous material web as well as the type of fibers from which it is produced. The fibrous material web could, for example, be a felt or a weft-knit fiber fabric but sven better results can be achieved with a fiber fleece which can store a multiple of its own weight in water.
The needling of a fiber fleece to the supporting web of a synthetic turf is known per se (DE-A-29 35 387); in this known synthetic turf, the fiber fleece is, however, needled to the upper side of the supporting web of the synthetic turf designed as a tufted fabric and the fiber tufts pushed through the supporting web during needling of the fiber fleece project downwardly out of the supporting web between the anchoring feet of the pile elements of this known synthetic -turf. In this known synthetic turf, the fiber fleece is intended, on the one hand, to serve the purpose of covering the supporting web so that its color is not visible from above and, on the other hand, when a coating mass is applied to the underside of the supporting web the fibers pressed downwardly through the supporting web from above have a repellent effect on the coating mass so that the openings in the supporting web which are necessary for the water-permeability of the syn-thetic turf are at least not completely closed by the back coating mass. The object and arrangement of the fiber fleece in this known synthetic turf are, therefore, completely different to those of the inventive floor covering.
During the production of an inventive floor covering, the fibrous material web could as such be needled from below to the supporting web before the pile elements are inserted into the supporting web, e.g. by tufting. I-t is, however, more advantageous for a fibrous material web to be needled to the --' 2 ~ 22~
finished synthetic turf from below during the production of an inventive floor covering since the pile elements then have anchoring feet arranged on the underside of the supporting web which are covered by the fibrous material web. Pile elements which are inserted into the supporting web, above all, by tufting are then better fixed in the supporting web and, in addition, when the floor covering is laid on a rough base the anchoring feet of the pile elements are not subject to the risk of being chafed through owing to the floor covering being played on. In every type of pile fabric, the fiber tufts which have been pushed through the supporting web and project into the area between the pile threads or tapes serve, in addition, to stabilize the actual pile of the floor covering. Finally, the water-permeability of the supporting web is increased due to the fibrous material web being needled thereto.
As a result of the effects described above, an inventive floor covering can be produced without adhesive or a back coating mass and so the inventive floor covering can be produced as a material which can be fully recycled. In order to simplify recycling of the floor covering even more, it is recommended that supporting web, pile elements and fibrous material web all be produced from the same plastics ma~erial and polypropylene, polyethylene, polyamide and polyester have proven to be particularly favorable raw materials.
Finally, the use of a fibrous material web impregnated for strengthening its fibers is recommended. A fibrous material web impregnated with a latex emulsion is particularly advantageous, or the following reason: A sports surface floor or ground covering has to be renewed approximately every 5 - 10 years;
within such a period of time latex will, however, decompose due 2~2292~
,.
to aging and be washed away when the floor covering is sprayed with water so that during recycling of the floor covering only pure plas-tics material still has -to be processed.
Finally, it should be pointed ou~ that the needling of the fibrous material web to the supportin~ web results in a stabilization of the surface of the floor covering and so the required accuracy to size of the floor covering oan be ensured.
If required, an additional material web, e.g. a grid-like woven fabric, a fleece material or the like, can be needled to the supporting web or the back of the weft-knit fabric at the same time as the fibrous material web to stabilize the shape.
Additional features, advantages and details of the invention result from the attached schematic illus-tration as well as the following description of a par-ticularly preferred embodiment of the inventive floor covering; the drawing shows a section through the floor covering designed as a tufted fabric.
The drawing shows a supporting web 10 designed as a tufting base fabric; this web has been produced in the present case from plastic tapes lOa and its water-permeability can be ensured in the most varied of ways, e.g. by the wid-th and density of the plastic tapes lOa, i.e. by the transverse spacing from one another of the plastic tapes forming the warp and weft threads.
Pile elements 12 have been inserted into the supporting web 10 by the tufting process and the anchoring fe~t 12a of these pile elements are located on the rear side of the supportin~ web 10.
Then, a layer of fiber fleece 14 has been needled onto the supporting web 10 from below, whereby holes lOb have resulted in the supporting web 10 and fiber tufts 14a pushed therethrough.
As a result of the layer of fiber fleece 14 being needled to the ~1~2'~2~
supporting web, not only has this layer been secured to the supporting web lO but also the wa-ter-permeability of the supporting web has been increased and, at the same time, it has been ensured that due to a capillary ac~ion brought about by the fiber tufts 14a water stored in the layer of fiber fleece 14 can be conveyed upwards into the area between the pile threads ~; :
formed by the free end regions of the pile elements 12.
Claims (7)
Application PCT/EP92/02533 P A T E N T C L A I M S
1. Floor covering designed as a pile fabric for sports surfaces, in particular synthetic turfs, with a supporting web (10) comprising openings (10b) and therefore being water-permeable, a fibrous material web (14) needled thereto as well as pile elements (12, 12a) secured to the supporting web (10) and forming the pile with their free end regions, characterized in that the fibrous material web (14) is arranged on the underside of the supporting web (10) and fiber tufts (14a) produced during needling of the fibrous material web project upwardly from the fibrous material web (14) through the supporting web (10) between the free end regions of the pile elements (12, 12a).
2. Floor covering as defined in claim 1, characterized in that the fibrous material web (14) is a fiber fleece, needlefelt or weft-knit fleece fabric.
3. Floor covering as defined in claim 1 or 2, characterized in that the pile elements (12) have anchoring feet (12a) arranged on the underside of the supporting web, said feet being located between the supporting web (10) and the fibrous material web (14).
4. Floor covering as defined in any or several of claims 1 - 3, characterized in that supporting web (10), pile elements (12) and fibrous material web (14) all consist of the same plastics material.
5. Floor covering as defined in claim 4, characterized in that the plastics material is polypropylene, polyethylene, polyamide or polyester.
6. Floor covering as defined in any or several of the preceding claims, characterized in that the fibrous material web (14) is impregnated, in particular with a latex emulsion, to strengthen its fibers.
7. Floor covering as defined in any or several of the preceding claims, characterized in that it is reinforced by an additional material web, in particular a grid-like woven fabric or weft-knit fabric, or by thread layers.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4136339.6 | 1991-11-05 | ||
| DE4136339A DE4136339A1 (en) | 1991-11-05 | 1991-11-05 | FLOORING FOR SPORTS AREAS |
| PCT/EP1992/002533 WO1993009294A1 (en) | 1991-11-05 | 1992-11-04 | Floor-covering for sports surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2122924A1 true CA2122924A1 (en) | 1993-05-13 |
Family
ID=6444089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002122924A Abandoned CA2122924A1 (en) | 1991-11-05 | 1992-11-04 | Floor-covering for sports surfaces |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0620879B1 (en) |
| AT (1) | ATE137280T1 (en) |
| AU (1) | AU2924292A (en) |
| BR (1) | BR9206713A (en) |
| CA (1) | CA2122924A1 (en) |
| DE (2) | DE4136339A1 (en) |
| NO (1) | NO941645D0 (en) |
| WO (1) | WO1993009294A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140295111A1 (en) * | 2010-12-09 | 2014-10-02 | Ten Cate Nederland B.V. | Artificial Lawn |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003462A1 (en) * | 2003-07-03 | 2005-01-13 | Inventress B.V. | Artifical grass capillary tubes |
| DE102004013749A1 (en) * | 2003-12-12 | 2005-08-04 | Schramm Gmbh & Co.Kg | Extrusion die for the production of a man-made fiber for use as artificial grass has one or more openings, each with an inner element |
| EP1983104B1 (en) * | 2007-04-19 | 2010-02-24 | Motech GmbH Technology & Systems | Synthetic turf |
| KR101995797B1 (en) * | 2017-11-21 | 2019-07-03 | 코오롱글로텍주식회사 | Artificial turf |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2935387C2 (en) * | 1979-09-01 | 1985-11-21 | J.F. Adolff Ag, 7150 Backnang | Tufted flooring |
| DE3116231A1 (en) * | 1981-04-23 | 1982-11-11 | J.F. Adolff Ag, 7150 Backnang | FLOORING FOR FREE AREAS |
| US4622253A (en) * | 1984-10-12 | 1986-11-11 | Harry Levy | Thermal laminated lining and method of manufacture |
| DE3835880A1 (en) * | 1988-10-21 | 1990-04-26 | Sportboden Systeme Gmbh | Resilient mat for ground coverings of sports and leisure areas |
-
1991
- 1991-11-05 DE DE4136339A patent/DE4136339A1/en not_active Ceased
-
1992
- 1992-11-04 EP EP92923311A patent/EP0620879B1/en not_active Expired - Lifetime
- 1992-11-04 CA CA002122924A patent/CA2122924A1/en not_active Abandoned
- 1992-11-04 AU AU29242/92A patent/AU2924292A/en not_active Abandoned
- 1992-11-04 DE DE59206135T patent/DE59206135D1/en not_active Expired - Fee Related
- 1992-11-04 WO PCT/EP1992/002533 patent/WO1993009294A1/en active IP Right Grant
- 1992-11-04 AT AT92923311T patent/ATE137280T1/en active
- 1992-11-04 BR BR9206713A patent/BR9206713A/en not_active Application Discontinuation
-
1994
- 1994-05-04 NO NO941645A patent/NO941645D0/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140295111A1 (en) * | 2010-12-09 | 2014-10-02 | Ten Cate Nederland B.V. | Artificial Lawn |
| US9611594B2 (en) * | 2010-12-09 | 2017-04-04 | Ten Cate Nederland B.V. | Artificial lawn |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0620879A1 (en) | 1994-10-26 |
| NO941645D0 (en) | 1994-05-04 |
| DE4136339A1 (en) | 1993-05-06 |
| ATE137280T1 (en) | 1996-05-15 |
| NO941645L (en) | 1994-06-27 |
| DE59206135D1 (en) | 1996-05-30 |
| WO1993009294A1 (en) | 1993-05-13 |
| EP0620879B1 (en) | 1996-04-24 |
| AU2924292A (en) | 1993-06-07 |
| BR9206713A (en) | 1995-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |