Chapter_14_Manufacturing_Yarns_-_Fall_2011-Student_Versopm

Chapter_14_Manufacturing_Yarns_-_Fall_2011-Student_Versopm...

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Manufacturing yarns Chapter 14 1
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spinning formation of manufactured fibers by extruding through a spinneret formation of a yarn from fibers drawing to orient molecules within a fiber step in certain processes for creating yarns from staple fibers 2
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MAKING FILAMENT YARNS extruded from spinneret exact number of holes for yarn drawn immediately or during texturing silk filaments after reeling or after gum removal 3
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MAKING FILAMENT YARNS Texturing Filament Yarns texturing increase bulk for comfort, resiliency alter texture or feel provide stretch by fiber manufacturer or later 4
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Texturing Filament Yarns Mechanical Methods Air-jet texturing yarn filaments are formed into loops by jets of air produces randomly spaced and sized loops 5
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Texturing Filament Yarns Thermomechanical Methods fibers deformed under heat twisted, crimped, or curled subjected to heat produce yarns with increased bulk and greater stretch 6
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Texturing Filament Yarns Thermomechanical Methods False-twist texturing disk system using friction more common today bending/crimp heat-set wavy/snarls when tension removed 7
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Texturing Filament Yarns Thermomechanical Methods Hot-fluid jet texturing BCF yarns used in nylon, poly, olefin carpet increased bulk, thus resilience hot air/steam fibers bunch up→ 3-D crimp→ cooled 8
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Texturing Filament Yarns Thermomechanical Methods stuffer box method fibers fed in heated chamber faster than withdrawn 9
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Texturing Filament Yarns Thermomechanical Methods Gear Crimp Process fibers passed between teeth of 2 heated gears saw-tooth configuration results fibers passed over heated knife edge 10
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This note was uploaded on 01/16/2012 for the course HUEC 2032 taught by Professor Hayes during the Fall '11 term at LSU.

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Chapter_14_Manufacturing_Yarns_-_Fall_2011-Student_Versopm...

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