As a leather factory, the leather bags and leather goods manufactured in the production of leather are mainly used to convert animal hides into materials that will not be corrupt and stable. The main components of raw hides are fat, protein, water and mineral salts. The leather that can be obtained from animals is called raw leather, but after tanning, it becomes the finished leather that people need. Many leather, accounting for more than 70 percent, will be used in the footwear industry. In terms of leather types, it can be divided into pig skin, cow skin, sheep skin, horse skin, snake skin, crocodile skin, fish skin, etc. according to animal types. In terms of leather uses, it can be divided into clothing leather, bag leather, shoe material leather, furniture leather, etc.
In our leather production process, the main process is divided into raw leather stages, mainly including peeling, trimming, peeling, meat cutting, deashing and pickling. The leather making stage is divided into grinding, washing, shaking, dyeing, fatliquoring, finishing, flattening, polishing and embossing. In terms of each process of our leather production, it can be mainly divided into dry field and water field. When water is not separated from nature, the manufacturing site will also be filled with a lot of water. Raw hides can be removed from animals and then slowly salted and preserved. Later, they can be transported to the leather factory by container truck. When we trim and trim the edges, we classify them and then choose immersion. It can restore the moisture that will be lost after adding salt and antisepsis. We can make the rawhide move in the sink and make it absorb water more fully. Meat can be cut mainly through the hob on the meat cutter, and then remove some residual meat on the raw skin. In terms of hair removal, we can make good use of strong alkali lime and sodium sulfate to better eliminate hair, so as to dissolve the colored cuticle on the skin and better remove some soluble proteins.
When we remove the ash, we can remove the alkaline lime left in the skin during hair removal. It can be fermented. Its main function is to remove all unnecessary non cortical fibers. After pickling, it is mainly to reduce the pH value of the skin, and under the acidic skin, it can better absorb the tanning agent, that is, chromium salt. Under the condition of chrome tanning, the leather body is continuously soaked in tanning agents such as chrome salt, and then run in the drum for about 4-6 hours. Then we squeeze water, that is, when peeling, we squeeze out the water absorbed by the skin in the production process, and we can carry out post peeling later. It mainly refers to the layering of leather. The remaining part cut by the dough is mainly called the double skin or the hammer skin. The double skin can mainly produce the anti wool hammer skin and the embossed hammer skin similar to the dough skin. In terms of dyeing and fatliquoring, dyeing is a necessary process for the production of benzene dyed leather, which is mainly a process in which the skin is soaked in the dye and the corresponding scratch is made. In the process of fatliquoring, different oils or the amount of oil are mainly used to determine the degree of softness and hardness of leather. In terms of leather, it is mainly relatively dry. The leather material can be broken open with a clip, then opened, and then dried in the air, or vacuum drying can be used. In this case, the semi-finished products can directly produce velvet skin and anti wool hammer skin.