Modeling of Raw Hide Soaking

Abstract: Raw hide, being an expensive starting material for manufacturing natural leathers, arrives in tanneries in a preserved state. In most cases, sodium chloride is used as preservation medium. In a whole number of operations through which raw hide is transformed into leather, raw hide desalting is a very important operation in view of final quality. The procedure incorrectly executed may cause considerable damage to edge parts of raw hide, effecting considerable economic losses in final area yield of leather substance. Another important factor playing a great role is environmental protection. The tanning industry consumes considerable amounts of power, chemicals and technological water, thus producing a great quantity of waste liquids.>From this viewpoint, a specific optimum of processing procedures should also be sought. Hence, the presented paper deals with desalting of raw hides, meaning soaking operations when viewed from the position of tanner