1. Artificial turf structure
Artificial turf is mainly composed of three layers. Above the base layer is a backing layer, usually composed of rubber or foam. The third layer, also the surface layer, is the grass fiber and filling layer, which must be glued to rubber or foam with latex.
2. Introduction to the specific specifications and types of artificial turf
(1) Classification of artificial turf
Artificial grass is basically divided into three categories: long hair, medium hair and short hair, and then subdivided into three categories: straight hair, curly hair and curly hair.
1. Long-haired grass: The length of grass hair is more than 32 to 50 mm.
Generally used in football games, training and horse racing venues, the grass wool density is from 150 stitches to 180 stitches.
2. Medium hair grass: The length of grass hair is from 19 to 32 mm.
The ground floor serves as an international playing field for tennis courts, hockey and lawn bowls. For general training purposes, football fields, volleyball courts, basketball courts, tennis courts and other venues, and even as a track track. The density of grass wool is from 180 stitches to 220 stitches.
3. Short-haired grass: The length of grass hair is from 6 to 12 mm.
Ideal for basketball courts, tennis courts around swimming pools or landscaping. Grass shape:
1. Straight hair grass: the most widely used and the most popular, and the lowest price. It is most suitable for sports environments such as tennis courts, basketball courts, and football fields where athletes have little chance of falling and scratching.
2. Curly hair grass: Because the grass hairs are curved and folded with each other, athletes are relatively less scratched on the grass hairs, and are mostly used in football fields.
3. Curly grass: The grass hairs are circular and folded more closely with each other, especially for lawn bowls or balls rolling on the turf, which will not be affected by the direction of the grass hairs due to laying, and affect the walking route of the bowls. higher movement. Common name: Unguided turf.
(2) Other categories
1. The material type of grass silk: PA (nylon), PP (polypropylene), PE (polyethylene). Among them, most of the current lawns use the grass silk as the main material, because although the PA has good wear resistance, the material is too hard, and it is easy to burn the skin of the athletes. PP has poor wear resistance and short field life, while PE It is soft and has better wear resistance, and is the first choice for sports contact venues, while PA is mainly used in the landscape grass market.
2. The shape of grass silk: reticulated split filament, monofilament.
Mesh wire has a lot of performance in many venues in China. Monofilament has become popular in recent years. The main reason is that the appearance is more like natural grass, the appearance is beautiful, and it has a slight advantage in wear resistance, but usually the price is higher than that of mesh wire. Silk.
3. The height of the lawn: In the European and American markets, the height of the football stadium is usually 60mm. When the domestic venue is tendered for many years, the height is generally between 40-55mm. The higher the lawn height, the higher the cost, the auxiliary materials and labor costs. It will also increase accordingly. Generally, it can be used at about 50mm. If the requirements are high, it can be set to a grass height of 60mm.
4. The back glue method of the base fabric: usually the back glue method is butyl latex, and the higher-end back glue method is PU back glue. Good waterproof performance, because the PU adhesive is formed at one time and has less additives, so it is more environmentally friendly. However, the cost of PU adhesive is high, and the price of the product is usually 20%-30% higher than that of butyl rubber.
5. Base fabric type: It is usually divided into composite base fabric and composite mesh three-layer base fabric. The tensile strength of the three-layer base fabric is relatively higher.
6. Needle movement method: usually divided into one-line needle movement and Z-shaped needle movement. Both needle running methods can meet the requirements of use, but the Z-shaped needle running method makes the distribution of the grass silk more uniform, and the adhesive force of the grass silk will be higher.
7. The density of the lawn: Usually the grass height of 50mm is about 10,000 needles. If there are high quality requirements, the density can be provided appropriately, but the cost will rise. And the higher the height, the generally set density decreases year-on-year.
8. The weight of grass silk: It is usually divided into 6600DTEX, 8800 DTEX, 9700DTEX, 12000DTEX, 15000DTEX, etc., which means the weight of grass silk per 10,000 meters. Usually football fields use more than 8800DTEX. However, the higher the weight of the product, the lower the density, and the basic guarantee is that the weight of the grass silk per square meter is about 1 kg.
