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Cowhide is made from rawhide that has been chemically and physically treated and transformed into a product that is non-perishable, flexible and breathable.
Made into finished leather need to go through dozens of processes: rawhide → soaking → fleshing → degreasing → dehairing → soaking alkali → swelling → de ashing → softening → soaking acid → tanning → dissecting layer → chipping → retanning → neutralizing → dyeing → oiling → filling → drying → finishing → coating → finished leather.
What is first layer cowhide
One: the first layer of cowhide and cowhide classification
1, in the process, cowhide can be cut out of 8 layers, the outermost layer is the first layer of leather, followed by the second layer is the second layer of leather.
2, the advantage of the first layer of leather is: it has in the outermost layer of the elastic and more skin-friendly natural skin full grain surface.
3, other two and three layers of leather can only be covered with gel to make the surface simulate the texture of the natural epidermis, this is the imitation of the first layer of leather, its elasticity, breathability are much worse than the first layer of leather.
4, the highest grade in the first layer of leather is called full grain, it is the skin surface without any processing, that is, the epidermis is protected to the most perfect first layer of leather, its surface has a natural grain texture, very scarce and precious.
5, the surface of the first layer of leather may have scars or knife marks left when cutting cowhide, then it is necessary to polish the first layer of leather. The unpolished ones are called full-grain and the properly polished ones are called half-grain, which retains at least half of the natural skin.