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S.B. Foot Tanning Company is a leather production facility located in Red Wing, Minnesota. 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 their shoe manufacturing plants. The company also supplies over 1.5 million linear feet of leather for use in the production of military footwear per year, extending a tradition that began with World War I, when the tannery supplied boot leathers for the construction of soldier boots. ==Processing== Hides are sourced from Feedlot cattle raised on ranches in Nebraska and Texas which are then run through primary processing in Minnesota and Iowa. The tannery then purchases the pre-processed hides which arrive in a stage of production called "Wet Blue," a term applied to animal hides that have been cured in Chromium salts. Wet-Blue hides produce stable leather products that are durable and flexible; and are able to maintain these characteristics over time. Upon arrival, the hides are graded based on the overall thickness and quality of the hide. Once graded, hides are grouped and shaved to a specific thickness. Once a hide has passed through the shaver, it will be more uniform and ready for color tanning. S.B. Foot Tanning Company uses wood drums measuring up to 40 feet in diameter. Wood drums are preferred over steel mainly due to heat absorbing properties. The hides are spun in a float of chemicals and dyes, mostly consisting of oils distilled from different tree barks and vegetation, to stain the hides to desired color. The longer a hide is spun in the barrel, the more time the dyes and oils have to seep into the cells and fibers of the leather. Most of the leather processed will spin long enough for the dyes to fully penetrate the hides. The hides are then dried, removing nearly 90% of the water weight from the hides. Some hides are then processed through additional steps: adding oils, waxes and possibly additional color tone finishes to achieve the desired look and properties. S.B. Foot Tanning Company then packages the hides for shipment to different production facilities. It is estimated that Red Wing Shoe Company uses nearly half of the total shoe leather produced. 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「S. B. Foot Tanning Company」の詳細全文を読む スポンサード リンク
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