The flock dimension is defined by the thickness of the fibers, also referred to as the titre, (measured in dtex) and the cut length (measured in mm) of the individual short fibers.
Since the textile fibers process related have certain variations in diameter, the thickness is defined not as a diameter but as a weight / length: dtex = g / 10,000 m.
The cutting length is given in mm.
The ratio between cut length and titer has an influence on the appearance (the shorter and thinner the fibers, the finer, the thicker and longer the fibers, the coarser) and feel (the longer and thinner the fibers, the softer, the thicker and shorter the fibers Fibers the harder) of the flocked surface. However, due to the manufacturing process, some limits of the usable cutting lengths also apply to good processability:
- Process-related, the minimum cutting length is about 0.3 mm
- Process Technology allows theoretically no limit to the cutting length
- However, as the length increases, flock becomes more and more difficult to process (tends to curve and clump together).
For more information, you should consult your flock supplier.