Synthetic turf pitches are also known as the following:
Types of Yarn
Traditionally there are three different types of yarn used in synthetic turf:
However recent innovations in extrusion technologies have enabled us to develop a new type of yarn, using fully recycled polyester (PET) flakes. 100% recycled, 100% innovative.
The Yarn manufacturing process enables different constructions of yarn to be extruded:
Monofilament (for rugby and football): individually created filaments twisted or wrapped together. Monofilaments offer increased durability, resilience and ability to cope with high usage. The manufacturing process enables the yarn to be formed in different profiles and thicknesses.
Fibrillated (ideal for rugby and football): Manufactured as a tape that is perforated lengthways to create a strong lattice structure which splits down with use to produce a multi-fibre appearance.
Knit-de-knit (ideal for hockey): Straight yarn that is given a tight curly appearance through a knitting process, producing non-directional surface.
Texturised (ideal for tennis and hockey): Straight Yarn that has been heat-set to produce a tight, curly appearance which gives a non-directional surface.
Systems and Infills:
Infills are divided into two categories:
This refers to the quantity of yarn within a square metre of product, using the number of stitches and the gauge of manufacture. Historically, the pile weight of a product has dictated the quality and price, with the heavier products demanding a higher price in return for improved performance.
The height of the product gives an indication of its application and format. Most football products will have a pile height of between 40mm-65mm and shockpads are required for surfaces with a pile height below 60mm. Rugby surfaces always have pile height of 65mm and are installed with a shockpad. Hockey surfaces tend to be between 10-20mm, offering different performance characteristics than the longer pile products. Generally shockpads are used in hockey.
Testing and Accreditations:
Laboratory testing –Different testing standards apply to each application:
Football surfaces can achieve three accreditation awards:
FA – Community use performance with heavy emphasis on longevity and a prerequisite for Football Foundation funding. FA have now adopted the FIFA 1 star testing standards.
FIFA 1 Star – Designed for community use and has to pass a series of stringent tests focussing particularly on durability and longevity (similar to FA standard)
FIFA 2 Star – The highest professional standard, awarded to the best performing surfaces and stadia (Designed for minimal use and requiring extensive maintenance).
Rugby surfaces have to adhere to IRB/RFU standards for full contact games and training activities. Testing measures the Head Impact Criteria (HIC), which has to be over 1.3m, ensuring player safety for full contact rugby in set pieces and open play.
Hockey has one awarding body accreditations split into two levels: