Cleantan® by Fraunhofer is a unique new tanning technology.
It creates high-quality leather without producing chrome-contaminated wastewater. The Cleantan® process uses 70% less
chemicals (no salt and 40% less chrome tanning agent) and
is five times faster than conventional tanning processes.
Pickling and basification take place without chemicals, only
with the help of carbon dioxide. Cleantan® saves costs as well
as the environment.
The frame size of the CO2 tanning unit and the workflow, e.g. filling and draining, are comparable to conventional systems, so Cleantan® is easy to implement in running tanneries.