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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.
It processes leather for use in the crafting of shoes, boots, belts, and leather accessories. In 2010, the factory processed nearly 6 million linear feet of hides. S.B. Foot Tanning Company is a wholly owned subsidiary of Red Wing Shoes Company, Inc. and is the principal supplier of leather to its shoe manufacturing plants. The company also ...
Ostrich leather is the result of tanning skins taken from African ostriches farmed for their feathers, skin and meat. The leather is distinctive for its pattern of vacant quill follicles, forming bumps ranged across a smooth field in varying densities. It requires an intricate, specialised, and expensive production process making its aesthetic ...
Chromium tanning is the most popular tanning method as 90% of all leather in the world is processed this way. [13] Alligator hide is also tanned using the Chromium process. [14] A reason many tanneries choose to use chromium is due to the final leather product being more durable and stretchy, ideal for leather accessories and garments.
Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. The most common leathers come from cattle , sheep , goats, equine animals, buffalo, pigs and hogs, and aquatic animals such as seals and alligators.
Tanning may refer to: Tanning (leather), treating animal skins to produce leather; Sun tanning, using the sun to darken pale skin Indoor tanning, the use of artificial light in place of the sun; Sunless tanning, application of a stain or dye to the skin (active ingredient in tanning lotion products is dihydroxyacetone (DHA)).
The oldest confirmed leather tanning tools were found in ancient Sumer and date to approximately 5000 BCE. [5] The oldest surviving piece of leather footwear is the Areni-1 shoe that was made in Armenia around 3500 BCE. Another, possibly older, piece of leather was found in Guitarrero Cave in northern Peru, dating to the Archaic period. [2]: 340
splitting - the leather is split into one or more horizontal layers. shaving - the leather is thinned using a machine which cuts leather fibres off. neutralisation - the pH of the leather is adjusted to a value between 4.5 and 6.5. retanning - additional tanning agents are added to impart properties. dyeing - the leather is coloured.