Synthetic Grass Calls For Easy Maintenance

| Tuesday, August 12, 2014
By Tanisha Berg


Natural grass can be mimicked using artificial fibers on a surface. Sports arenas have traditionally used this synthetic grass for sports that used to or still require a grass-like environment to perform on. Nowadays, these surfaces or not only used for sports leagues but even in residential settings and commercial landscaping.

On top of looking natural, the surfaces can withstand a lot of use, which is why it is used most in sports arenas. They also don't need any trimming maintenance or irrigation for it to stay healthy. Stadiums like to use this surface because they otherwise can't get sunlight to shine on the entire grounds. However, artificial grass does have downsides, as it has been manufactured. It does have a limited amount of shelf life, has been made with toxic chemicals and petroleum, leads to certain health and safety concerns, and requires some periodic cleaning.

This type of surface is produced with a mixture of plastic granules and other additives like coloring agents and UV stabilizers. These ingredients are then heated and pressed together, then pressured through an extruder head. This procedure creates individual fibers, and the shapes of them depend on the specific extruder head. Usually, the two types of fibers end up being fibrillated or monofilament.

When making fibrillated fibers, a thin layer of plastic is pushed through the extruder head, which is similar to what you see in a videotape. Then, notches are made in the plastic so that a honeycomb structure can be seen when the film is pulled apart. The plastic is spun around afterwards so it becomes into a round shape. These types of fibers are the more affordable option. However, it does take some time for it to start looking realistic as the notches wear and spread apart. Otherwise, the initial appearance is not natural at all.

Monofilament fibers are more similar to what you see with spaghetti, as they are pressed through extruder heads like ready-to-use fibers. Theses blades are combined into groups and coiled together into a bundle, each one representing a grass pile. This type of fiber is a lot more natural, flexible, soft, and wear resistant.

The ingredient mixture ultimately depends on the supplier and product version, and decides the quality of the resulting product. The individual fibers are then reinforced in to blades. Then, they are made to resist strong wear and temperatures between -50 and 50 Celsius. The finished fibers are wrapped around large bobbins, or spools, and sent to the surface manufacturers.

These bobbins are put on machines that are four meters wide and have needles that push the fibers through backings. This tufting process is comparable to any standard sewing machine. The final resulting appearance of the artificial turf relies on the machine and its needles, the fiber itself, and the fiber height.

A liquid mixture is added to the backing in order to fix the fibers in. It's then put into an oven so the mixture can harden. The result is a completely finalized artificial turf that can be installed or sent out for sale.




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