Artificial turf system

A technology of artificial turf and buffer layer, which is applied in textiles and papermaking, roads, buildings, etc., can solve the problems of reduced shock absorption capacity, difficult recycling of artificial turf systems, and increased cost, and achieves the effect of easy recycling.

Active Publication Date: 2020-08-14
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the shock-absorbing capacity of the padding decreases over time, requiring refilling and increasing costs
[0005] The use of shredded rubber and / or sand infill particles, alone or in combination with PU cushioning, makes the overlying artificial turf system difficult to recycle, incurring incineration or disposal costs

Method used

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[0164] 1. Materials

[0165] A shock absorbing assembly with a cushioning layer integrated with a shock absorbing pad was produced on the C-ENG line (Duralastic, US). The formant damper assembly has figure 2 The structure of the shock-absorbing assembly 20 is shown, and the shock-absorbing assembly 20 has a buffer layer 40 and a shock-absorbing pad 50 . The 3DRLM of the formant shock absorber assembly is a continuous fiber composed of ethylene / octene alpha-olefin copolymer with a density of 0.905 g / cc.

[0166] Table 1 below provides the characteristics of the formant damper assembly (hereinafter referred to as SAC1).

[0167] Table 1 - SAC1 Characteristics

[0168] Nominal size = 305mm × 305mm × 54mm

[0169] SAC1

[0170] sample mass (g) Thickness (mm) Volume (cc) Density(g / cc) Porosity(%) Shock absorbing components 310.1 54 5016.8 0.0618 93.17％ Cushion 187.9 48 4459.3 0.0421 95.34％ The buffer layer 122.2 6 557.4 0.2192 ...

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Abstract

An artificial turf system (10) includes a primary backing layer (12) and a shock absorption component (20). The primary backing layer (12) has a plurality of artificial turf yarns (14) projecting upwardly from the primary backing layer (12). The shock absorption component (20) is composed of a sheet of three-dimensional random loop material 3DRLM (30). The sheet of 3DRLM (30) is in contact with the primary backing layer (12). The shock absorption component (20) includes (i) a cushioning layer (40) and (ii) a shockpad (50). The 3DRLM (30) in the cushioning layer (40) has an apparent density that is greater than the apparent density of the 3DRLM (30) in the shockpad (50).

Description

Background technique [0001] Interest in artificial turf has exploded in recent years. Artificial turf (also known as "artificial grass") is increasingly used to replace natural grass on playing surfaces, especially on sports fields and playgrounds. Artificial turf is also suitable for landscaping and recreational settings. [0002] In "third-generation artificial turf," or "3G turf," artificial grass blades ("stakes") are supported by a thin base of sand and an infill of rubber crumbs. Stake heights range from 40 millimeters (mm) to 65mm, depending on the primary movement being performed on the surface. Most 3G artificial grass consists of polyethylene (PE) yarn tufted to a primary backing. Typically, tuft lock is achieved by applying a polyurethane (PU) secondary back coat or a styrene-butadiene-latex secondary back coat. The filler is then diffused between the yarn fibers to stabilize the vertical position of the fibers, provide traction for the athlete, and aid in the s...

Claims

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Application Information

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IPC IPC(8): E01C13/02E01C13/08
CPCE01C13/02E01C13/08D02G3/34D10B2403/033
Inventor D·洛佩兹E·阿尔瓦雷斯J·L·戴夫恩波特V·K·沙哈K·A·科皮
Owner DOW GLOBAL TECH LLC
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