To make the spinning solution acetate flakes and acetone are mixed together intensively in a mixer.

After the spinning solution has come out of the spinning jets, the newly born filament solidifies and becomes thinner as the solvent evaporates and the filament is stretched.

The crimping process serves to emboss a crimping structure onto each filament in the filter tow. In the crimper the uncrimped tow band is pressed via two feed rolls into a stuffer box.

The fresh crimp structure is fixed as it passes through a drier and the filter tow is brought to a constant final humidity.

The filter tow is then laid into filling boxes several meters tall in regular patterns.
This loosely packed tow layer is then compressed in bale presses to filter tow bales and packed for dispatch.