Use sheepskin as raw material to process and produce wool and leather dual-purpose clothing leather before tanning. Only good degreasing in the early stage can have good tanning, and finally the so-called good quality Spanish sheepskin.

Features of sheepskin 1. The epidermis is thinner, the hair is denser, and the guard hairs are mostly in groups of three, arranged in a zigzag or line shape, and the grain pattern is imbricate. The epidermis of goatskin accounts for about 2% of the total skin thickness.
2. The dermis is divided into the papillary layer and the reticular layer. Different from cowhide, the nipple layer of goatskin is thicker, accounting for about 50-75% of the thickness of the dermis. The collagen fiber bundles in the upper layer of the papillary layer were thin and tightly woven, while the collagen fiber bundles in the lower layer of the papillary layer gradually became thicker but loosely woven. The thickness of the reticular layer accounts for about 1/2 of the thickness of the whole skin, and the collagen bundles in this layer...
3. The position difference is relatively large. The difference in the position of goatskin is mainly the difference between the neck and the abdomen. The neck of the goatskin is thick, and the collagen fibers are tightly woven; the abdomen is thin, and the collagen fiber bundles are loosely woven. In the process of goatskin processing, measures should be taken to reduce or even eliminate the position difference of goatskin.
4. Most of the collagen fiber bundles are head-to-tail. During the processing, too much mechanical rotation will easily elongate the skin and deform it.