The flow chart presents the craft procedure of leather production across a twelve-stage process, commencing from the delivery of raw hides to the waxing phase. A range of physical and chemical treatments are used in the formation of finished leathers.
To start with, after being transported from farms, animal skins are sorted into stacks based on size. Trimming follows, removing redundant sections. Next, salt is added as a preservative, restricting bacterial growth and protecting the leather from decay. Then, a 30-day period of curing takes place on specialised racks before hides undergo a soaking phase for 12-24 hours in water. Hair removal is processed via a knife.
Subsequently, animal skins are pickled in a mixture of salt and acid for better softness. This is followed by tanning, when hides are treated with chemicals for 48 hours in a rotating drum to strengthen their durability. After that, pigment and oil are added to the process to achieve a soft texture and standard color. Finally, leathers are dried by machine before being applied with a layer of wax for a smooth and polished appearance of finished outcomes.