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Briefly describe three characteristics of a wool fibre that adds to its value in the textile industry
Weegy: The mechanization of the woolen cloth industry provides a heady example of the extent of nineteenth-century industrial change The major steps necessary to process wool from the sheep to the fabric are: shearing, cleaning and scouring, [ grading and sorting, carding, spinning, weaving, and finishing. ] (More)
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Asked 10/15/2012 1:14:35 PM
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Briefly describe three characteristics of a wool fibre that adds to its value in the textile industry
Weegy: Wool's scaling and crimp make it easier to spin the fleece by helping the individual fibers attach to each other, so they stay together. [ Because of the crimp, wool fabrics have a greater bulk than other textiles, and retain air, which causes the product to retain heat. Insulation also works both ways; Bedouins and Tuaregs use wool clothes to keep heat out and protect the body. The amount of crimp corresponds to the fineness of the wool fibers. A fine wool like Merino may have up to 100 crimps per inch, while the coarser wools like karakul may have as few as 1 to 2. Hair, by contrast, has little if any scale and no crimp, and little ability to bind into yarn. On sheep, the hair part of the fleece is called kemp. The relative amounts of kemp to wool vary from breed to breed, and make some fleeces more desirable for spinning, felting, or carding into batts for quilts or other insulating products, including the famous tweed cloth of Scotland. Wool fibers are hydrophilic, meaning they readily absorb moisture, but are not hollow. Wool can absorb moisture almost one-third of its own weight.[4] Wool absorbs sound like many other fabrics. It is generally a creamy white color, although some breeds of sheep produce natural colors, such as black, brown, silver, and random mixes. Wool ignites at a higher temperature than cotton and some synthetic fibers. It has lower rate of flame spread, low heat release, low heat of combustion, and does not melt or drip;[5] it forms a char which is insulating and self-extinguishing, and contributes less to toxic gases and smoke than other flooring products, when used in carpets.[6] Wool carpets are specified for high safety environments, such as trains and aircraft. Wool is usually specified for garments for firefighters, soldiers, and others in occupations where they are exposed to the likelihood of fire.[6] Wool is resistant to static electricity, as the moisture retained within the fabric conducts electricity, so wool garments ... (More)
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Asked 10/15/2012 1:16:49 PM
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