Preparation of the skin for tanning
The raw goods are cleaned. Contaminates and preserving salts are removed.
The addition of chalk and sulfur compounds removes hair from the skin and any excess proteins or fats.
Fleshing and splitting
Removal of flesh and tissue residue using a sharp cutting roll.
Staining, pickling and tanning
Bating and pickling
Bating and pickling the skins (with enzymes, acids and salt) makes the tissue fibers receptive.
Probably the most important stage in leather production. During tanning, the structure is stabilized and conserved with the use of tanning materials - this turns the skin into leather.
Dying and drying
The wet leather is dewatered
The leather is sorted according to the different quality criteria.
Leather is developed to an even thickness
Neutralizing, filling, dying and greasing
The acids from tanning are neutralized. Filling and dying is carried out depending on the type of leather, next the finished leather is given the required softness and elasticity through greasing.
Drying (vacuum, tensioning frame and/or hang drying)
Milling and studding
Softening of the leather fibers