Artificial turf with high vibration absorption

Abstract

The utility model discloses an artificial turf with high vibration absorption, which consists of grass yarns, base cloth and an adhesive layer, and the base cloth comprises a damping layer and a woven layer; the damping layer has a three-dimensional ordered structure; the damping layer is three-dimensional mesh cloth with a sandwich structure; or the damping layer is a three-dimensional flannelette blanket. The three-dimensional mesh cloth and the three-dimensional flannelette blanket which are of a sandwich structure are adopted as the damping layer, so that good elasticity is achieved, high vibration absorbability is achieved, meanwhile, the problem of expansion caused by heat and contraction caused by cold of XPE foaming materials can be solved, and the problems of bulging and seam opening in a site are fundamentally solved. Meanwhile, the high-vibration-absorption lawn is made into a whole, field pavement is facilitated, and operation is simple and easy.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial turf, and more specifically to an artificial turf with high shock absorption. Background Art

[0002] Artificial turf has a development history of nearly 60 years. After long-term technological progress, artificial turf has been increasingly favored by people. Compared with natural grasslands, it has low maintenance costs and excellent sports experiences. Artificial turf has evolved from its initial use on football fields to professional sports venues such as hockey, cricket, and golf.

[0003] With the increasing use of artificial turf in professional sports venues, its shock absorption has attracted much attention for the impact on athletes. The shock absorption of artificial turf refers to its ability to absorb and reduce impacts when subjected to shocks. Appropriate shock absorption can bring many benefits to athletes, such as enhancing the explosive power and flexibility of athletes when running, reducing energy loss during running, and improving the comfort of sports.

[0004] In addition to enhancing the comfort and safety of sports, the shock absorption of artificial turf also has a certain impact on some professional sports venues. For example, in golf courses, appropriate shock absorption can control the bounce performance of golf balls when they land, making it closer to the sports performance of real grass. Golf courses, especially the green areas of golf, have very high requirements for the turf, which leads to extremely high maintenance costs for real grass on golf greens. Artificial turf golf green venues have been increasingly favored in recent years due to their lower maintenance costs. Therefore, the demand for the shock absorption performance of artificial turf in golf courses has also brought considerable technical challenges.

[0005] Currently, in order to achieve appropriate shock absorption performance in artificial turf sports venues, an elastic pad is usually added under the turf during installation. This elastic pad can be prepared from polymer materials through various foaming processes. Most of these elastic pads form a cross-linked structure after foaming, which is not convenient for recycling; the installation of an additional foaming layer also brings huge raw material and installation costs; in addition, after long-term use, the turf and the elastic pad are prone to slip, resulting in a decline in the overall shock absorption performance of the turf.

[0006] Therefore, the technology of developing an artificial turf with high stability and high shock absorption has great market appeal and is also beneficial to the booming development of artificial turf in the sports field. Summary of the Utility Model

[0007] The utility model aims to solve at least one of the above technical problems in the prior art to a certain extent.

[0008] To this end, an object of the present utility model is to provide an artificial turf with high shock absorption. This turf can not only greatly improve the shock absorption performance of the turf, but also improve the structural strength of the turf itself and maintain stability during sports.

[0009] To achieve the above object, the present utility model adopts the following technical solutions:

[0010] An artificial turf with high shock absorption, comprising from top to bottom: grass filaments, a base cloth and an adhesive layer. The roots of the grass filaments penetrate through the base cloth and extend to the adhesive layer;

[0011] The base cloth includes a damping layer and a woven layer; the damping layer and the woven layer are arranged one above the other;

[0012] Among them, the damping layer has a three-dimensional ordered structure;

[0013] The woven layer is obtained by cross-weaving warp yarns and weft yarns;

[0014] The adhesive penetrates through the woven layer to bond it to the damping layer.

[0015] In existing sports systems, artificial turf is always paired with an XPE foam pad. The first layer is paved with an XPE elastic pad; the second layer is paved with artificial turf; the third layer is paved with sand and rubber particles. There is no adhesive as a connecting material between the XPE elastic pad and the turf directly. XPE will expand and contract due to heat in summer, and the internal stress of the XPE elastic pad will cause the problem of the turf bulging. However, in the present utility model, the artificial turf and the damping layer are made into a whole, and the artificial grass filaments, the damping layer and the woven layer are connected into one body through an adhesive, increasing the dimensional stability.

[0016] Preferably, the connecting monofilament is a monofilament with a diameter of 0.08 - 0.3 mm.

[0017] Preferably, the connecting monofilament is any one of polyester monofilament, polypropylene monofilament or polyethylene monofilament.

[0018] More preferably, the connecting monofilament is a polyester monofilament with a diameter of 0.1 - 0.15 mm, a polyethylene monofilament with a diameter of 0.1 - 0.25 mm or a polypropylene monofilament with a diameter of 0.1 - 0.2 mm.

[0019] Preferably, the thickness of the damping layer is 2 - 20 mm; the thickness of the woven layer is 0.1 - 2 mm.

[0020] More preferably, the thickness of the damping layer is 3 - 18 mm; the thickness of the woven layer is 0.1 - 1.5 mm.

[0021] Further, the thickness of the damping layer is 3-15 mm; the thickness of the braided layer is 0.5-1.5 mm.

[0022] Preferably, the damping layer is a three-dimensional mesh fabric with a sandwich structure;

[0023] Or, a three-dimensional flannelette composed of any one of short hair, velveteen or looped velvet and a base fabric.

[0024] Preferably, the three-dimensional mesh fabric with a sandwich structure includes a mesh surface, connecting monofilaments and a plain fabric bottom surface. The mesh surface is connected to the plain fabric bottom surface through the connecting monofilaments, and the connecting monofilaments are fibers or monofilaments prepared from polymer materials.

[0025] Preferably, the water permeability of the braided layer is greater than 15000 mm / h (measured by the method based on the FIFA artificial turf quality program standard).

[0026] Preferably, the warp and / or weft contains yarn A and / or yarn B;

[0027] The thickness of the yarn A is 0.08-0.5 mm; the thickness of the yarn B is 0.03-0.06 mm;

[0028] The width of the warp is 0.5-3 mm; the width of the weft is 0.5-4 mm;

[0029] The knitting density of the warp is 400-2400 pieces per meter; the knitting density of the weft is 300-2400 pieces per meter.

[0030] Preferably, the cross-sections of the yarn A and the yarn B are rectangular.

[0031] Preferably, both the warp and the weft are yarn A.

[0032] Preferably, the colors of the yarn A and the yarn B are one or more of black, green, white, blue, purple, orange, yellow and brown.

[0033] Preferably, the adhesive includes one or several of epoxy, styrene-butadiene, polyurethane, acrylic, nitrile-butadiene, styrene-acrylic, hot melt adhesive, silicone and urea-formaldehyde.

[0034] As can be seen from the above technical solutions, compared with the prior art, the present utility model has the following beneficial effects: The present utility model connects artificial grass filaments, a damping layer and a woven layer into one body through an adhesive, increasing the dimensional stability. The three-dimensional mesh fabric and three-dimensional carpet with a sandwich structure as the damping layer have good elasticity, playing a role in high vibration absorption, and at the same time can solve the problem of thermal expansion and contraction of XPE foam materials, fundamentally solving the problems of bulging and opening at the joints on the site. At the same time, making the high vibration absorption lawn into one body is beneficial to on-site paving, which is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0036] Figure 1 It is a three-dimensional view of a three-dimensional mesh fabric;

[0037] Figure 2 It is a front view of a three-dimensional mesh fabric;

[0038] Figure 3 It is a side view of a three-dimensional mesh fabric;

[0039] Figure 4 It is a side view of a loop pile carpet;

[0040] Figure 5 It is a structural diagram of a woven layer; where A is the weft yarn and B is the warp yarn;

[0041] Figure 6 It is a structural diagram of an artificial turf based on a damping layer and a woven layer, 1 - grass filament; 2 - damping layer; 3 - woven layer; 4 - adhesive layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0045] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0047] Embodiment 1

[0048] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes artificial grass filaments 1, a base fabric, and an adhesive layer 4 from top to bottom;

[0049] The base fabric includes a damping layer 2 and a woven layer 3, and the damping layer 2 and the woven layer 3 are arranged vertically.

[0050] Among them, the root of the artificial grass fiber 1 penetrates through the damping layer 2 and the weaving layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the weaving layer 3 to bond the weaving layer 3 and the damping layer 2;

[0051] In this embodiment, the height of the artificial grass fiber 1 is 50 mm, and the stitch density is 14 stitches / 10 cm;

[0052] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process. Its thickness is 3 mm. The surface of the mesh holes and the bottom surface of the plain fabric are made of polyester (polyester) fibers, and the middle monofilament is a 0.1 mm polyester monofilament;

[0053] The weaving layer 3 is formed by the interweaving of warp yarn A and weft yarn B. Among them, the width of warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / meter; the width of weft yarn B is 4 mm, the thickness is 0.04 mm, and the weaving density is 300 roots / meter.

[0054] Embodiment 2

[0055] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes artificial grass fibers 1, a base cloth and an adhesive layer 4 from top to bottom;

[0056] The base cloth includes a damping layer 2 and a weaving layer 3, and the damping layer 2 and the weaving layer 3 are arranged up and down;

[0057] Among them, the root of the artificial grass fiber 1 penetrates through the damping layer 2 and the weaving layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the weaving layer 3 to bond the weaving layer 3 and the damping layer 2;

[0058] In this embodiment, the height of the artificial grass fiber 1 is 30 mm, and the stitch density is 20 stitches / 10 cm;

[0059] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process. Its thickness is 5 mm. The surface of the mesh holes and the bottom surface of the plain fabric are made of polyester (polyester) fibers, and the middle monofilament is a 0.15 mm polyethylene monofilament;

[0060] The weaving layer 3 is formed by the interweaving of warp yarn A and weft yarn B. Among them, the width of warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / meter; the width of weft yarn B is 1 mm, the thickness is 0.04 mm, and the weaving density is 1200 roots / meter.

[0061] Embodiment 3

[0062] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes artificial grass fibers 1, a base cloth and an adhesive layer 4 from top to bottom;

[0063] The base cloth includes a damping layer 2 and a weaving layer 3, and the damping layer 2 and the weaving layer 3 are arranged up and down;

[0064] Among them, the root of the artificial grass fiber 1 penetrates through the damping layer 2 and the weaving layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the weaving layer 3 to bond the weaving layer 3 and the damping layer 2;

[0065] In this embodiment, the height of the artificial grass fiber 1 is 20 mm, and the stitch density is 25 stitches / 10 cm;

[0066] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process, with a thickness of 8 mm. The surface of the mesh holes and the bottom flat fabric are made of polyester (polyester) fibers, and the middle single filaments are 0.25 mm polyethylene single filaments;

[0067] The weaving layer 3 is formed by the interweaving of warp yarn A and weft yarn B. Among them, the width of the warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / m; the width of the weft yarn B is 0.5 mm, the thickness is 0.04 mm, and the weaving density is 2400 roots / m.

[0068] Example 4

[0069] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes an artificial grass fiber 1, a base cloth and an adhesive layer 4 from top to bottom;

[0070] The base cloth includes a damping layer 2 and a weaving layer 3, and the damping layer 2 and the weaving layer 3 are arranged up and down;

[0071] Among them, the root of the artificial grass fiber 1 penetrates through the damping layer 2 and the weaving layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the weaving layer 3 to bond the weaving layer 3 and the damping layer 2;

[0072] In this embodiment, the height of the artificial grass fiber 1 is 15 mm, and the stitch density is 25 stitches / 10 cm;

[0073] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process, with a thickness of 5 mm. The surface of the mesh holes and the bottom flat fabric are made of polyester (polyester) fibers, and the middle single filaments are 0.25 mm polyethylene single filaments;

[0074] The weaving layer 3 is formed by the interweaving of warp yarn A and weft yarn B. Among them, the width of the warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / m; the width of the weft yarn B is 0.5 mm, the thickness is 0.04 mm, and the weaving density is 2400 roots / m.

[0075] Example 5

[0076] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes an artificial grass fiber 1, a base cloth and an adhesive layer 4 from top to bottom;

[0077] The base fabric includes a damping layer 2 and a woven layer 3, and the damping layer 2 and the woven layer 3 are arranged one above the other;

[0078] Among them, the root of the artificial grass filament 1 penetrates through the damping layer 2 and the woven layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the woven layer 3 to bond the woven layer 3 and the damping layer 2;

[0079] In this embodiment, the artificial grass filament 1 has a grass height of 30 mm and a stitch density of 25 stitches / 10 cm;

[0080] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process. Its thickness is 5 mm. The surface of the mesh holes and the bottom surface of the plain fabric are made of polyester (polyester) fibers, and the middle monofilament is a 0.2 mm polypropylene monofilament;

[0081] The woven layer 3 is woven by the interweaving of warp yarn A and weft yarn B. Among them, the width of the warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / m; the width of the weft yarn B is 0.5 mm, the thickness is 0.04 mm, and the weaving density is 2400 roots / m.

[0082] Example 6

[0083] See Figure 6 , this embodiment provides an artificial turf with high shock absorption, which sequentially includes artificial grass filaments 1, a base fabric, and an adhesive layer 4 from top to bottom;

[0084] The base fabric includes a damping layer 2 and a woven layer 3, and the damping layer 2 and the woven layer 3 are arranged one above the other;

[0085] Among them, the root of the artificial grass filament 1 penetrates through the damping layer 2 and the woven layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the woven layer 3 to bond the woven layer 3 and the damping layer 2;

[0086] In this embodiment, the artificial grass filament 1 has a grass height of 30 mm and a stitch density of 25 stitches / 10 cm;

[0087] The damping layer 2 is a three-dimensional mesh fabric, which is prepared by a weaving process. Its thickness is 5 mm. The surface of the mesh holes and the bottom surface of the plain fabric are made of polyester (polyester) fibers, and the middle monofilament is a 0.3 mm polyethylene monofilament;

[0088] The woven layer 3 is woven by the interweaving of warp yarn A and weft yarn B. Among them, the width of the warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / m; the width of the weft yarn B is 2 mm, the thickness is 0.25 mm, and the weaving density is 2400 roots / m.

[0089] Example 7

[0090] See Figure 6, this embodiment provides an artificial turf with high shock absorption, which sequentially includes artificial grass filaments 1, a base cloth, and an adhesive layer 4 from top to bottom;

[0091] The base cloth includes a damping layer 2 and a weaving layer 3, and the damping layer 2 and the weaving layer 3 are arranged vertically;

[0092] Among them, the root of the artificial grass filament 1 penetrates through the damping layer 2 and the weaving layer 3 and extends to the adhesive layer 4, and the adhesive penetrates through the weaving layer 3 to bond the weaving layer 3 and the damping layer 2;

[0093] In this embodiment, the grass height of the artificial grass filament 1 is 30 mm, and the stitch density is 25 stitches / 10 cm;

[0094] The damping layer 2 is a three-dimensional carpet, which is prepared by tufting weaving process. The loop pile thickness is 5 mm, the material is polyester (polyester) fiber, and the base cloth is a PP base cloth;

[0095] The weaving layer 3 is woven by the interlacing of warp yarn A and weft yarn B. Among them, the width of warp yarn A is 2 mm, the thickness is 0.25 mm, and the weaving density is 600 roots / m; the width of weft yarn B is 0.5 mm, the thickness is 0.04 mm, and the weaving density is 2400 roots / m.

[0096] Comparative Example 1

[0097] The comparative example provides an ordinary artificial turf, including artificial grass filaments, a double-layer base cloth, and an adhesive layer;

[0098] Among them, the artificial grass filaments are tufted on one side of the double-layer base cloth, and the adhesive is coated on the other side of the double-layer base cloth to form an adhesive layer;

[0099] The grass height of the artificial grass filaments is 50 mm, and the stitch density is 14 stitches / 10 cm;

[0100] The single-sided areal density of the double-layer base cloth is 135 g / m 2 .

[0101] Shock absorption test

[0102] Table 1 lists the shock absorption test results of Examples 1-7 and Comparative Example 1. The shock absorption test is carried out according to the method in the new standard manual of the FIFA Quality Programme for Football Turf (abbreviated as FQP). It can be seen from the data in Table 1 that the artificial turf technical solution provided by the present invention greatly improves the shock absorption ability of the turf itself, and good shock absorption effect can be directly obtained without using an external elastic pad.

[0103] Table 1 Shock absorption test results

[0104]

[0105] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can join and combine the different embodiments or examples described in this specification.

[0106] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An artificial turf with high shock absorption, including from top to bottom: A grass yarn, a base fabric and an adhesive layer, characterized in that the root of the grass yarn penetrates through the base fabric and extends to the adhesive layer; the base fabric includes a damping layer and a woven layer; the damping layer and the woven layer are arranged one above the other; wherein, the damping layer has a three-dimensional ordered structure; the woven layer is obtained by interweaving warp yarns and weft yarns; the adhesive penetrates through the woven layer to bond it to the damping layer.

2. The artificial turf with high shock absorption according to claim 1, characterized in that, The damping layer is a three-dimensional mesh fabric with a sandwich structure; or, the damping layer is a three-dimensional carpet composed of any one of short hair, velveteen or looped velvet and a base fabric.

3. The artificial turf with high shock absorption according to claim 2, characterized in that, The three-dimensional mesh fabric includes a mesh surface, connecting monofilaments and a plain fabric bottom surface, and the mesh surface is connected to the plain fabric bottom surface through the connecting monofilaments.

4. The artificial turf with high shock absorption according to claim 3, characterized in that, The connecting monofilaments are monofilaments with a diameter of 0.08 - 0.3 mm; The connecting monofilaments are any one of polyester monofilaments, polypropylene monofilaments or polyethylene monofilaments.

5. A synthetic turf with high shock absorption according to claim 4, characterized in that, The connecting monofilaments are polyester monofilaments with a diameter of 0.1 - 0.15 mm or polyethylene monofilaments with a diameter of 0.1 - 0.20 mm or polypropylene monofilaments with a diameter of 0.1 - 0.2 mm.

6. A synthetic turf with high shock absorption according to any one of claims 1-3, characterized in that, The thickness of the damping layer is 2 - 20 mm; the thickness of the woven layer is 0.1 - 2 mm.

7. The artificial turf with high shock absorption according to claim 6, characterized in that, The thickness of the damping layer is 3 - 18 mm; the thickness of the woven layer is 0.1 - 1.5 mm.

8. The artificial turf with high shock absorption according to claim 6, characterized in that, The thickness of the damping layer is 3 - 15 mm; the thickness of the woven layer is 0.5 - 1.5 mm.

9. An artificial turf with high shock absorption according to claim 7 or 8, characterized in that, The water permeability of the woven layer is greater than 15000 mm / h.

10. An artificial turf with high shock absorption according to claim 1, characterized in that the warp yarns and / or the weft yarns contain yarn A and / or yarn B; the thickness of yarn A is 0.08 - 0.5 mm; the thickness of yarn B is 0.03 - 0.06 mm; the width of the warp yarns is 0.5 - 3 mm; the width of the weft yarns is 0.5 - 4 mm; the weaving density of the warp yarns is 400 - 2400 pieces per meter; the weaving density of the weft yarns is 300 - 2400 pieces per meter.

11. A synthetic turf with high shock absorption according to claim 10, characterized in that, The cross-sections of both yarn A and yarn B are rectangular.

12. The artificial turf with high shock absorption according to claim 11, characterized in that, Both the warp yarns and the weft yarns are yarn A.

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