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Tanning, or hide tanning, is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Historically, vegetable based tanning used tannin, an acidic chemical compound derived from the bark of certain trees, in the production of leather. An alternative method, developed in the ...
The principal difference between raw hides and tanned hides is that raw hides dry out to form a hard inflexible material that can putrefy when re-wetted (wetted back), while tanned material dries out to a flexible form that does not become putrid when wetted back. A large number of different tanning methods and materials can be used; the choice ...
A tanner treating leather in Morocco. Bating is a technical term used in the tanning industry to denote leather that has been treated with hen or pigeon manure, similar to puering (see puer) where the leather has been treated with dog excrement, and which treatment, in both cases, was performed on the raw hide prior to tanning in order to render the skins, and the subsequent leather, soft and ...
Horse hides are used to make particularly durable leathers. Shell cordovan is a horse leather made not from the outer skin but from an under layer, found only in equine species, called the shell. It is prized for its mirror-like finish and anti-creasing properties. Lamb and deerskin are used for soft leather in more expensive apparel.
Buckskin is the soft, pliable, porous preserved hide of an animal – usually deer – tanned in the same way as deerskin clothing worn by Native Americans. Some leather sold as "buckskin" may now be sheepskin tanned with modern chromate tanning chemicals and dyed to resemble real buckskin.
Rawhide is a hide or animal skin that has not been exposed to tanning. It is similar to parchment , much lighter in color than leather made by traditional vegetable tanning. Rawhide is more susceptible to water than leather, and it quickly softens and stretches if left wet unless well waterproofed.
Once a cow has been killed, the skin is removed. It is then selected in the raw state, at the very first moment when it is salted. It is organized by size and color. In the tannery, a traditional hair on hide tanning method is employed to ensure that the hide is soft, and less susceptible to odour and moulting. It ensures that the cowhide will ...
Tanned ostrich hide. Ostrich leather is distinct in its appearance and is characterized by raised points that are localized to the center of the hide. The portion with these bumps is called the "crown". It is actually the back of the ostrich where the animal's neck meets its body. The bumps are quill follicles where a feather grew. On the left ...