DTex expresses the length/mass ratio and is measured as the weight of the fiber per 10,000 meter length.
A Dtex of, for example, 10,000 means that a fiber with a length of 10,000 meters weighs 1 kilo. The fiber thickness is also important: the thicker a fiber is, the longer it will remain upright.
The total square meter weight of the fibers in relation to their height also gives an indication of the product quality. Just as with carpet, the denser the weave, the more durable – or resistant to wear – the grass will be. NB: this can negatively impact on the ornamental/decorative function or similarity to natural grass.
The reason for this is that thickly woven artificial grass does not automatically make it appear more similar to natural grass! A guideline for the ratio between a natural fiber weight per square meter and the fiber length for artificial grass types with a root zone (also called artificial moss) is a minimum weight of 45 to 60 grams per millimeter fiber length.