dralon^® L is a polyacrylnitrile fiber type (PAN-Fiber).

It is produced by wet spinning.

The production process is divided into four stages:

1) Polymerisation
Acrylonitrile (ACN) is polymerised with other monomers to produce polyacrylonitrile (PAN).

2) Dissolving
After washing and drying, the white PAN powder is stirred into dimethylacetamide (DMAC) and heated until it dissolves. The solution is then filtered.

3) Spinning
The solution is extruded through spinnerets, producing spinning material. The solvent is evaporated from the solution using a water bath during spinning (wet spinning process). It is then distilled and rused.

4) Aftertreatment
At the aftertreatment stage the spinning material is washed, drawn, crimped, dried and lubricated. At this stage the characteristics properties, e.g. tenacity, elongation, titre, volume, handle, etc. are given to the tow.