The diagram illustrates the process by which leather goods are produced. Overall, there are four main stages in the production of leather goods, beginning with the drying of animal skins. This is followed by soaking the material, after which it is processed and eventually used to produce a range of leather products.
Initially, animal skins are hung out to dry. Once dried, they are transported by truck to a factory, where they are washed in a mixture of water and lime. After this washing stage, the skins are soaked in a lime solution to further prepare them for processing.
In the subsequent stages, the material is fed through a flattening machine, which presses the skins to create a smooth surface. The flattened leather is then soaked in tannin, a solution made from water and vegetable matter, in order to strengthen it. Following this, the leather is polished to improve its appearance. Finally, it is transported to another factory, where it is manufactured into various leather goods such as shoes, bags and sports equipment.