HUEC 2040 Exam 1

HUEC 2040 Exam 1 - 8-24-09Intro to Textile...

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Unformatted text preview: 8-24-09Intro to Textile Science-Textile:obroad classification of materials; cloth or fabric; woven or knitted most common in apparel & home furnishings-Fibers: osmallest unit of textile; twisted together to form a yarn; definition pg. 4; obasic unit of textile; must have length 100x diameter; onatural or man-made ( naturally-occurring, manufactured thru technology) *polyester, acrylic* oProperties—chemical, physical, mechanical,-- fineness, flexibility strength, durability required-- others preferred for end use-YarnsoAssembly of fibers twisted or held together in continuous strandoDiff types of yarns of same fiber can produce fabrics that look different such as polyesteroVariations:oFelt exception because has no yarn8-26-09-Fabric StructuresoYarns united to form a cohesive structureoProduced by a) hand & b)machine-Coloring & FinishingoFinish: special treatment to fiber, yarn or fabric oTo enhance performanceoTo overcome undesirable properties-Historyo27000 yr. ago- woven fabric imprint on clay potso7000 BC- oldest fragment of cloth (linen?); found in Turkeyo6000 BC- earliest footwear (sandals); found east of Rocky Mountains ; found by archeologists from Missourio1000 BC- “the silk road” to China; textiles move from China to Mediterranean regionoCrusades – silk & cotton from Middle East to Europeo15thCentury- trade fairs in France set up to trade of wools from England & silks from Middle East *set up 1stbanking systemo17thCentury- discovery of America; Europeans were searching for faster way to Oriento18thCentury- colonists sold indigo(traditionally color that is applied to denim) & cochineal(red dye) to Europe & bought cottons from India; plantations south of BR were producing indigooTextile industry was 1stindustry to undergo industrialization in late 1700sFar East & India competition w/ W. EuropeMachinery invented to compete: 1) Spinning machine in England; used to spin fiber into yarn; sped up spinning process; 8-1 ratio 2) Automatic looms-England 3) Water power—steam – electricity – England 4) Cotton gin—oLate 1800s—synthetic dyeso19102-1930s—“artificial silk” (rayon); AcetateNylon; invented by Dupont; 1stmanufactured synthetic fibero1950s—engineering of fibers, yarns, fabrics; acrylic, olefin, polyester, spandex-Fiber ProducersoNatural Fibers—animal source-proteins; Ex: wool-merino sheep; silk- silkworm(caterpillar)Vegetable source- cellulosic; cotton & linen(flax)Producers sell to mills/wholesalers; has no control over amt. produced & increases in demandTrade Associa.•American Wool Council•National Cotton Council of America•Cotton, Inc.•Mohair Council•International Linen Promotion Associa.oManufactured Fibers—Commercially produced•Regeneration from natural material•Synthesized from chemicals•Can regulate production w/ supply & demandsIndustry as Whole•The American Fiber ManufaProducers can control what happens to their fiber after production & selling of fabric:•Unbranded- not controlled...
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This note was uploaded on 05/06/2010 for the course HUEC 2040 taught by Professor Staff during the Fall '08 term at LSU.

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HUEC 2040 Exam 1 - 8-24-09Intro to Textile...

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