Process standard for tanning leather

In many places, the process standards of tanning leather are different, and there are many different technologies and processes in leather making operation. For many leather goods, tanning technology is also a technology and process with very high requirements and high standards.
Tuscany is mainly a high-quality cowhide leather production place in Italy. It is famous for producing green and natural vegetable tanned leather in the global leather industry. Among many leather enterprises in Italy, Tuscany belongs to the largest number of regions, and accounts for about 28% of the output value in terms of leather output value. It is generally considered to have footwear production technology and technology and high-end leather goods. The Italian vegetable tanning alliance, mainly established in Tuscany, has continuously promoted the improvement of quality standards and leather making processes in the region. Because Tuscany has a very mild climate and vast grassland, it is very in line with the growth of cattle in this regard, and makes Tuscany leather industry more high-quality and stable in cowhide raw materials. As the vegetable tanning industry in this area has experienced many centuries of precipitation history, on the premise of maintaining the traditional tannic acid natural vegetable tanning process, it will have higher requirements for process and materials, and then reach the world standard.
Oil wax leather mainly adopts the material of oil tanning, and the leather after tanning and dyeing has relatively good elasticity, softer and greater tension. After the later finishing process, waxy and oily hand feel agents can be used. Therefore, the leather made is more suitable for the production of luggage and clothing. Because the oil wax skin has three main advantages, one is that it has better air permeability, and it is often used in furniture such as sofa. After a relatively long time, it will change color. The oil wax skin will be better in oil absorption and water absorption, and it is not easy to produce mildew.
In terms of raw materials for leather making, animal skins are mainly used as raw materials, and although the most common in our life will be cow leather, sheep skin and pig skin, in fact, most animal skins can be continuously used in the process of leather making. Due to the relatively large output and better quality of pigskin, cowhide and sheepskin, they are often one of the main raw materials for leather making. Because there are more kinds of raw leather in leather making, according to the international animal protection regulations, a series of laws and regulations will be really used in the production of raw materials, so they will be limited to a certain extent. The leather used by our group is usually sheep leather, pig leather, cow leather and horse leather.