The artificial turf produced in various countries must comply with national industrial standards and meet environmental protection requirements before being exported. The pros and cons of others' lawns can be distinguished from the following aspects:
1. Exterior
Whether the color is natural, whether the grass silk is soft and how it looks like.
2. Specifications
The length of the grass. In principle, the longer the football field is, the better (outside the leisure field). The longest grass yarn is 60mm, which is mainly used for professional football fields. The most common grass yarn for football fields is about 30-50mm.
3. Grass density
Evaluate from two angles: first, look at the number of grass silk needles from the back of the lawn, the more needles per metre of grass silk, the better; second, look at the row spacing from the back of the lawn, that is, the row spacing of grass threads, the denser the row spacing The better.
4. Grass fiber
The finished product of lawn is made of fiber filaments, the main components of which are polyethylene, nylon, polypropylene, etc. The former two are softer than the latter, and the price is higher. However, if it is too soft, the grass is difficult to stand up (in this case, sports grass), and the ball's rebound ability is low.
There are two evaluation indicators for fiber yarn: grass fineness and fiber diameter. Common sports grass yarns are 5700, 7600, 8800 and 10000, which means that the higher the size of the grass, the better the quality. The more the number of grass filaments in each cluster, the finer the grass and the better the quality.
The diameter of the fiber is calculated in μm, which is generally between 50-150 μm. The larger the fiber diameter, the better. The larger diameter gives the impression that the grass filaments are thick and wear-resistant. The small fiber diameter is like a thin plastic sheet, which is not wear-resistant. The index of fiber yarn is generally difficult to measure, so FIFA generally uses the index of fiber weight.
5. Fiber quality
The larger the mass of the same unit length, the better. The pound weight of the grass fiber is in the unit of fineness, which is defined as 1Dtex per 10,000 meters of fiber with a mass of 1 gram.
The larger the grass fiber weight, the thicker the grass fiber. The greater the grass fiber weight, the stronger the abrasion resistance. The larger the grass fiber weight, the longer the service life.
However, the larger the grass seedling fiber weight, the higher the cost. Choose the appropriate grass seedling weight according to the age group and frequency of use of the athletes. For large sports venues, it is recommended to use grass woven lawns with a weight of more than 11000Dtex.
6. other aspects
Artificial turf is used for use or to beautify the living environment, so the most important foot feel and color quality are the first factors to consider. If it is a sports turf, consider the feeling of athletes running on it. The ball feel-the ball is in Whether the trajectory running above meets the requirements of the game.
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