Vegetable tanning hides can be judged from several aspects:

First, ordinary cowhide bags are made of the first layer of leather. First of all, you can judge whether it is the first skin or the second skin. The first layer of skin, also known as skin green, has the best texture, is tensile and breathable, and has natural scars and traces of blood tendons on its surface. The imported top skin will also be branded with the number of cattle;

The second skin is the loose part of the fiber structure, and the broken scraps must be re-bonded, and then the chemical dyeing procedure is carried out after the surface is polished.

You can pull the cowhide hard, with fine pores and deformed surface, that is, the first layer of skin, and the second layer of skin has no pores and does not deform. It belongs to high-grade leather with unique technology, and its price and grade are no less than that of the first leather.

Second, the second skin is smooth and shiny, without wrinkles. There are many kinds of imported cowhide, including cowhide, beef cowhide, grazing cowhide, bull cowhide, castrated bull cowhide and castrated bull cowhide.

3. Extracts obtained by extracting plant tanning materials (skins, dried leaves, fruits, etc.). Called vegetable tanning material), and the solid block or powder obtained by further processing is called tannin extract. Therefore, vegetable tanned leather with vegetable tanning agent is also called tannin extract leather and tree paste leather.

4. Vegetable tanned cowhide is a kind of leather tanned with vegetable tanning agent, so it contains no substances harmful to human body, and it is a kind of green leather that can directly contact with skin and is harmless to human body. Can be used for handbags, backpacks, saddles, insoles, shoe linings, hat linings, belts and other leather products that are in direct contact with the human body.