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A tanning worker in Morocco. The leather manufacturing process are the operations taken to create leather from hides. The procedure is divided into three sub-processes: preparatory stages, tanning, and crusting. All true leathers will undergo these sub-processes. A further sub-process, surface coating, may be added into the sequence.
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 ...
The marketing of ostrich skin started in 1969/1970 when a leather tannery was built near the abattoir. Prior to this, there was very little known about the tanning process of ostrich skin. Most likely, ostrich skins were sent from the abattoir to tanneries in England and then sold to fashion houses.
Once the process achieves even penetration, workers slowly raise the liquor's pH in a process called basification, which fixes the tanning material to the leather. The more tanning material fixed, the higher the leather's hydrothermal stability and shrinkage temperature resistance. Crusting is a process that thins and lubricates leather.
The Manasse-Block Tanning Company was an American tannery founded in 1900 by August Manasse and Roy Block, whose families had leather-related businesses in Napa and San Francisco, California, respectively. The Manasse-Block tannery was relocated in 1905 from Oakland to 1300 Fourth Street in Berkeley, on a site previously used by the Deach ...
Since 1941, Horween Leather Company has been the exclusive supplier of leather for National Football League footballs. [28] [15] [29] The arrangement was established initially by Arnold Horween, who had played and coached in the NFL. [2] The company uses its own "Tanned in Tack" process.
Tannery workers washing skins in the Oued Bou Khareb (photo from 2006; before recent renovations to the area). Tanneries have historically always been treated as polluting areas due to the waste runoff and the strong smells that they create. [7] Since the 19th century the tanneries have made extensive use of chromium in order to aid the tanning ...