Friday, July 2, 2010

Nature Fiber - Hemp 大麻



Hemp fiber is obtained from the bast of the plant Cannabis sativa. It grows easily to a height of 4m, without agrochemicals and captures large quantities of carbon.
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However, production of hemp is restricted in some countries, where the plant is confused with marijuana
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Hemp has been used for centuries to make rope, canvas and paper. Long hemp fibers can be spun and woven to make crisp, linen-like fabric used in clothing, home furnishing textiles and floor coverings.
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In China, hemp is degummed for processing on flax or cotton machinery. Blending with cotton, linen, silk and wool gives hemp a softer feel, while adding resistance and durability to the product.
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In Europe, hemp fibers are used mainly in the paper industry. Due to lower lignin content, it can be pulped using fewer chemicals than wood.
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Hemp fibers are also used to reinforce moulded thermoplastic in the automobile industry. The short core fibers go into insulation products, fiberboard and erosion control mats, while the fibrous core can be blended with lime to make strong, lightweight concrete.
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The world’s leading producer of hemp is China, with smaller production in Europe, Chile and Democratic People’s Republic of Korea.
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http://www.naturalfibres2009.org
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