TS 111 2.3.16 - Similar characteristics to cotton Stronger...

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TS 111 2.3.16 Chapter 3 Fibers Natural Fibers Fall under three main categories: cellulosic, protein, mineral o Cellulosic - plant fiber Primary ingredient cellulose o Protein - animal Primary ingredient protein o Mineral - rocks and sand Primary mineral fiber (not used in apparel anymore) Cellulose Primary o Cotton, flax and ramie o Secondary: hemp, sisal, manila Protein Primary o Wool and Silk o Secondary: Rabbit, alpaca All natural fibers occur in staple (finite) form expect silk Cotton Widely used because its cheap Cellulosic fiber Cotton burns Silverfish eat cotton Never store cotton wet in a closed space or it will mildew Relatively medium strength fiber Longest cotton fiber are 2 ½ inches Combed cotton= only using the long fibers Absorbent Flax Has to be harvested by hand = expensive Bass fiber- grows in stork Can be very long, 17-20 inches Much smoother fabric
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Unformatted text preview: Similar characteristics to cotton Stronger Greater abrasion resistance Wool Comes from sheep Care for sheep, take wool of sheep (sheer it off or pull off) Different grades of wool Belly is the least desirable part of the wool Best is from the flanks Primary ingredient is protein Self extinguishing fiber Weak fiber Poor abrasion resistance Non absorbent fiber (absorbs in the gas state) Notorious for shrinking Natural three dimensional crimp= good insulation Natural oil on it, laminen Heavy fiber, higher specific gravity Moths eat wool Silk Luxurious fiber Very strong fiber (strongest natural fiber) Silk comes from silk worm Good abrasion resistance Poor sunlight resistance Can be attacked by moths Silk is a hallow fiber= good insulation...
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