I believe we have a certain understanding of the skin, but different skin, its characteristics and how much you know?
1. What is often said that leather?
"Leather" leather in the leather market is a common word, is it for the difference between the synthetic leather and natural leather called a habit in consumer attitudes, the "leather" also has a non-false meaning. It is mainly made from animal hide of work. Leather variety, species diversity, different structures, different quality, the price disparities. Therefore, all natural leather on leather both collectively is a vague identity commodity markets. Hierarchical division, can be divided into the first layer and the second floor of leather. According to a statement physiological point of view, any animal skins have hair, epidermis and dermis. Since the dermis contains small fibers mesh, so Jieju considerable strength and breathability. The raw material is animal skin tanning, although we live in the most common is pigskin, cowhide, sheepskin, but in fact most of the animals can be used for tanning leather. Just good quality cowhide, pigskin and sheepskin and production, is the main raw material tanning.
 
2. What is the first layer of material Pippi? What are the characteristics?
According to the level of sub-leather, have leather first layer and the second floor, where the first layer of leather has grain leather, shaving leather, embossed and so on.
Grain leather: leather in many varieties, full grain leather to top the list, because it is made of the finest raw materials less disability Pijia made leather surface preserved in its natural state, the coating is thin, can show out of animal skin pattern natural beauty. It is not only wear, but also has good air permeability. Leather is the use of such leather as raw material to produce high-quality leather products. Characteristics intact grain, pores clear, small, compact, irregular arrangement, surface full detail, flexibility and good permeability, is a high-grade leather. With this cowhide leather products, durable and beautiful use of comfort. Its been in the production process equipment for processing, repair ground only half of the grain, so that half a cowhide. Maintain the natural leather part style, pores flat oval, irregular, feel hard, generally used raw hides poor grades. So a mid-range leather. Because of the special nature of the process of their performance without disability and scar and high utilization of its products is not easy deformation, it is generally used for larger area is large briefcase products.
Shaving leather: buffing machine using the rear surface of the light-finishing mill, and then pressed into a corresponding pattern on the surface. It is actually a natural with a disability or rough leather surface were "cosmetic." Such leather almost lost its original surface state, also known as "smooth leather" market, also known as matte, glossy leather. Characteristic flat and smooth surface without pores and striae, in the production of surface grinding grain to make minor modifications in leather top layer of colored resin coating, surface texture leather cover, and then spraying water light transparent resin, it is a high-grade leather . Especially in light cowhide, its glittering, noble and beautiful style, is popular leather fashion leather.
 
3. What is the story Pippi feed? What are the characteristics?
By leather estates pm, there is the first layer and the second floor of leather, split leather mostly by raw material distinction, such as sub-floor and other cow split and pigs.
Second layer of skin is thick with the on-chip with machine-sectional layer obtained, the first layer used to make full-grain leather or shaving leather, two-story or film series after finishing processes made split leather, which makes the leather surface showing each colors, a variety of patterns, and yet breathable leather, folding advantage has its unique appearance and water resistance.
Leather floor features: its opposite is the second layer of skin leather material, the surface coated with PU resin, also known as foil leather. Its price is cheaper, high utilization. It is also made with the process and changes in various grades of species, such as physical fitness leather floor, because of the unique technology, stable quality, variety of new features for the current high-grade leather, price and grade of no less than the first layer of the dermis.
4, leather was first invented substitutes for leather fabric, which is made of PVC plasticizers and other additives rolling complex in the cloth. That is, it is completely different from the first layer and the second layer of skin, which itself is not the cortex.
The advantage is cheap, rich colors, patterns range, the disadvantage is easy to hard and brittle. PU leather two-story mentioned above is used in place of PVC artificial leather, its price is higher than PVC artificial leather. From the chemical structure, it is closer to the cortex of fabric, it does not need plasticizers to achieve a soft nature, so he will not harden, become brittle, while with rich colors, patterns range of advantages, the price off than leather fabric cheap, So be welcomed by consumers.