The diagram illustrates the leather manufacturing process, which consists of seven distinct steps.
One noticeable feature is that the soaking occurs more than once, with water and lime being the key ingredients in this stage. Initially, animal skins are left to dry before being transported by trucks to the relevant factories.
Next, the skins undergo a washing process that involves both water and lime. This is followed by the first soaking process, where only lime is used. The soaked skins are then transferred to the flattening stage before undergoing the soaking process again.
In comparison to the first soaking, this time the skins are treated with tannin, a special mixture that helps with preservation. After this treatment, the leather is prepared for finishing and then transported back to the distribution center.
From there, it is sold to various companies that specialize in leather products. As a result, satisfied customers around the world benefit from this comprehensive manufacturing process.