Water-soluble matter / loss of weight by washing out

Due to the manufacturing process, leather contains minerals including magnesium compounds, unbound non-tanning agents, tanning agents, etc. that can be washed out. A high mineral content means that the leather is artificially weighted and can lead to leather defects. Consequently, the total leaching loss as well as the mineral content and the organic content to be calculated from it are important quality criteria for leather.


FILK Freiberg Institute gGmbH
Meißner Ring 1-5
09599 Freiberg


Fon: +49-(0)3731-366-0
Fax: +49-(0)3731-366-130
E-Mail: mailbox@filkfreiberg.de

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