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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 bumps or vacant quill follicles, ranged across a smooth field in varying densities. It requires an intricate, specialised and expensive production process making its aesthetic value costly. Although the first commercial farming began in South Africa in 1850, the industry collapsed after World War I and the drop in demand for the feathers for fashionable hats and military uniforms. Other products were marketed, with each success battered by world events and droughts until now, when ostrich skin is globally available and seen as a luxury item in high-end demand. Leather came late in the story of ostrich farming but after a tannery was set up onsite, it went on to make an impact in European haute couture and in the U.S. for cowboy boots becoming widespread during the 1970s. Demand peaked in the 1980s. Availability was artificially limited when ostrich leather was subject to a cartel monopoly through trade sanctions, and single export and distribution channels until the end of apartheid in 1993. After that and other factors, the South African government began to export stock allowing other countries to have their own ranches. Although wider production resulted in competition and lower prices, Klein Karoo Group remains the leading global producer. There were estimated to be just under 500,000 commercially bred ostriches in the world in 2003, with around 350,000 of these in South Africa. Ostrich leather is regarded as an exotic leather product alongside crocodile, snake, lizard, camel, emu among others. Ostrich skins are the largest in terms of volumes traded in the global exotic skins market. The premium strain of ostrich is the "African Black," which originated on the ranches of South Africa through various forms of selective breeding.〔 ==General description== Ostrich leather is unmistakable in its appearance; no other material looks similar to it. It is characterized by raised points that are localized to the center of the hide. The portion with these bumps is called the "crown". It's actually the back of the ostrich where the animal's neck meets its body. The bumps are quill follicles where a feather used to reside. On the left and right side of the diamond shaped crown the skin is quite smooth. In fact, only about 1/3 of the whole skin has quill bumps. Since the crown is the most sought after portion and since it constitutes such a small area of the skin, "full quill" ostrich products are considerably dearer when compared to bovine leather. This, along with the fact that it is one of the strongest commercial leathers, leads ostrich leather to be seen as a luxury item. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ostrich leather」の詳細全文を読む スポンサード リンク
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