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Some leather sold as "buckskin" may now be sheepskin tanned with modern chromate tanning chemicals and dyed to resemble real buckskin. Traditionally, Native American Indians would scrape away the excessive fat clinging to the hide, and this would be followed by working the raw hide with the brain tissue of an animal. [1]
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.
Chrome-tanned leather is tanned using chromium sulfate and other chromium salts. It is also known as "wet blue" for the pale blue color of the undyed leather. The chrome tanning method usually takes approximately one day to complete, making it best suited for large-scale industrial use. This is the most common method in modern use.
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)).
This was done by placing the skin in a pit on top of ground tanning material and covered by additional ground tanning material. This process would be repeated until the pit was nearly full. Tanning materials were dependent on the local landscape and were mostly composed of tree matter (oak, birch, willow, spruce, etc.).
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Buffalo hides, as well as deer, elk, and other animal hides, are painted. Clothing and robes are often brain-tanned to be soft and supple. Parfleches, shields, and moccasin soles are rawhide for toughness. In the past, Plains artists used a bone or wood stylus to paint with natural mineral and vegetable pigments.
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