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2040, 9 - 9.9.11 – HUEC 2040 Notes Protein Fibers –...

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Unformatted text preview: 9.9.11 – HUEC 2040 Notes Protein Fibers – Chapter 5 • Animal hair fibers o Wool (from sheep) o Specialty hair fibers Camel family – alpaca, camel, llama, vicuna, guanaco Goat family – cashmere goat, angora goat, qiviut o Fur fibers – mink, chinchilla, beaver, fox rabbit o Other – horse hair, cow hair • Fibers formed from extruded filaments o Natural fibers Silkworm cocoon fibers Spider silk o Manufactured fibers Corn, soybeans, milk sources Tofu ( Soysilk®) • The Protein Family o Weaker than cellulosic fibers (EXCEPT SILK) o Weaker wet than dry Needs care in laundering or wet processing o Greater resilience and elongation than cellulosic fibers More resistant to wrinkling Hold shape better o Lower specific gravity Feel lighter in weight than cellulosic fibers o Sensitivity to heat Do not burn easily • May self-extinguish • Burning hair odor Lower ironing temperature (press cloth) o Harmed by: Oxidizing agents • Chlorine bleach (melts) Bases/alkalis • Strongly alkaline soaps/detergents Sunlight • White yellows • Silk degrades readily with exposure o Earliest remains – Egypt, 4,000 BC Wool o Historically other animal hair fibers Sheared or cut from animal Spun, woven o Currently most used – sheep fleece o Wool products labeling act of 1939 - FTC All wool products must be labeled All fibers contained must be identified Terms that should be used to identify • Wool – fibers never been reclaimed from woven or felted products • Recycled wool – lowest quality o Taken from woven or felted product (could have been used by consumer or simply picked up scraps from factory floor) • New wool, virgin wool – high quality, never reclaimed...
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2040, 9 - 9.9.11 – HUEC 2040 Notes Protein Fibers –...

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