Shagreen Shagreen Shagreen is a type of rawhide consisting of rough untanned skin, historically from a horse's or onager's back, or from shark or ray. In modern times, shagreen is produced from the skins of commercially-farmed Asian sting rays. The word derives from the French "chagrin" and is related to Italian "zigrino" and Venetian "sagrin", derived from the Turkic "sağrı" / "çağrı" 'rump of a horse' or the prepared skin of this part. The roughness of its texture led to the French meaning of anxiety, vexation, embarrassment, or annoyance. Shagreen has an unusually rough and granular surface, and is sometimes used
Tanning (leather) the process, cedar oil, alum, or tannin were applied to the skin as a tanning agent. As the skin was stretched, it would lose moisture and absorb the agent. Following the adoption in medicine of soaking sutures in a chromium (III) solution after 1840, it was discovered that this method could also be used with leather and thus was adopted by tanners. The tanning process begins with obtaining an animal skin. When an animal skin is to be tanned, the animal is killed and skinned before the body heat leaves the tissues. This can be done by the tanner, or