Frequently Asked Questions – Yarn

What yarn types are available?

Polyethylene (PE), polypropylene (PP) and polyamide (PA) are generally used in the manufacture of synthetic turf.

What kind of yarn styles are being offered in the market and how are these produced ?

1. Fibrillated yarn is yarn extruded from film and cut into tapes. The tapes are then stretched and fibrillated – where small pins cut a lattice structure into the yarn which results in good infill encapsulation.
2. Monotapes are yarns that are extruded from film and simply cut into thin tapes, which are then twisted together. These yarns have a rectangular cross section.
3. Monofilament yarns are individually extruded yarns from a machine called a spinneret. As each yarn is moulded separately, there is the opportunity to produce different cross sections

What coloured yarns are available?

Synthetic grass yarns are available in a range of colours from different shades of green to more vibrant colours suitable for sports clubs’ logos and designs.

Is the synthetic turf UV stabilised?

Synthetic grass contains UV additives to ensure a warranted period of colourfastness guaranteed as specified by the yarn manufacturer.

What are the measurements for yarns – dtex, microns?

Yarns are typically measured by weight and thickness.  The weight measurements are normally tex, dtex or denier. The thickness of the yarn is measured in microns.

Are certain colours more prone to UV degradation than others?

The pigmentation in certain colours (typically red and orange) are more prone to attack and degradation by UV.  Warranties are offered for individual yarn colours.

Are the yarns flame retardant?

Special flame retardant additives can be added to the grass yarns to enhance the flame retardant properties of the yarns however flame retardancy should be considered for the surface as a whole and not individual component parts.

How does the yarn perform under extreme temperatures?

Under normal climatic conditions (-10° Celsius to +40° Celsius) yarn will perform under the typical yarn warranty. Polyethylene is far more stable under severe temperatures, for example polypropylene can become brittle below freezing point.