Leather Storage and Treatment Methods Before Tanning

Are you curious to know how skin of your leather bag is treated from its removal at the time of tanning? Here are the main processes:

  •  Wet Salting: the skins are spread and stacked on top of each other between layers of salt; the brine, formed by the absorption of the moisture of the skin by the salt, penetrates into the skin, killing most of the bacteria and preserving the leather. However, not all bacteria are killed by this treatment; this leads to the formation of unsightly red spots in the skin that could lower their value. This problem can be remedied by adding naphthalene (C10H8) and salt sodium carbonate (NaHCO3 + NaCl).
  •  Brining: the skins are immersed in a saturated solution of salt and kept in continuous movement until the brine penetrates into the hides and then left to dry; this method is one of the most effective in leather preservation but sometimes inaccessible due to high costs.
  •  Chilling: the skins just removed from the carcass are frozen and transported in refrigerated wagons; the method is not commonly used because it is very expensive.
  •  Drying: the skins are placed on stones and left to dry in the sun; the non-uniformity of the stones and the impossibility to control the drying process mean that the skin can be damaged; for this reason this treatment is not widely used in modern industry.

We at the Medici in Florence we offer only products that are the result of careful research and trust in the tanneries leading the sector for decades, so our products are always safe and excellent.