Application of Air in Yarn Production (Ring-Jet and Air Jet Spinning)

Title Alternative:Application of Air in Yarn Production (Ring-Jet and Air Jet Spinning)
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dc.contributor.advisorIbrahim, Sayed M.
dc.contributor.authorSheolal, Ashwin
dc.date2010
dc.date.accessioned2014-01-10
dc.date.available2014-01-10
dc.date.committed2010-05-17
dc.date.defense2010-06-01
dc.date.issued2010
dc.date.submitted2009-10-30
dc.degree.levelmgr
dc.descriptionkatedra: KTT; přílohy: 1 CD; rozsah: 61 s.cs
dc.description.abstractThe primary factors influencing the properties and character of staple spun yarns are fiber type and yarn structure. The particular spinning system, each producing yarn of its own distinctive character, determines the yarn structure. The spinning system is in turn dependent upon the manner in which twist is inserted. The recent trend is to use air-jets to insert twist producing yarn of a distinctive, unique structure, consisting of a core and belt or wrapper fibers. Yarn hairiness associated with the longer protruding fibers has been also reduced as a result of this structure. The use of air-jets in the production of yarn therefore has immense potential and is therefore a worthy field of research. An experimental study using compressed air, delivered by an air-jet, to the fiber stream upon exit from the front roller nip, in an attempt to assemble the fibers into a yarn structure, was conducted. The investigation was divided into the following: ? Ring-Jet Spinning Consolidating the fibers after drafting using an air-jet by applying false twist to the fibers, and thereafter applying real twist by a spindle on a conventional ringframe. ? Preliminary investigation into use of air-jets to produce yarn 1. An arrangement of two jets in series with two ancillary fiber tubes. 2. An arrangement of two air-jets in parallel and the third in a series to the first two to produce yarns similar to siro-spun. For ring-jet spun yarns, the influence on the following yarn parameters was determined, viz. yarn hairiness using Uster and Zwiegle testing equipment, yarn evenness and imperfections determined on Uster and yarn tensile properties on the Instron tester, for the ring- jet yarns.cs
dc.description.abstractThe primary factors influencing the properties and character of staple spun yarns are fiber type and yarn structure. The particular spinning system, each producing yarn of its own distinctive character, determines the yarn structure. The spinning system is in turn dependent upon the manner in which twist is inserted. The recent trend is to use air-jets to insert twist producing yarn of a distinctive, unique structure, consisting of a core and belt or wrapper fibers. Yarn hairiness associated with the longer protruding fibers has been also reduced as a result of this structure. The use of air-jets in the production of yarn therefore has immense potential and is therefore a worthy field of research. An experimental study using compressed air, delivered by an air-jet, to the fiber stream upon exit from the front roller nip, in an attempt to assemble the fibers into a yarn structure, was conducted. The investigation was divided into the following: ? Ring-Jet Spinning Consolidating the fibers after drafting using an air-jet by applying false twist to the fibers, and thereafter applying real twist by a spindle on a conventional ringframe. ? Preliminary investigation into use of air-jets to produce yarn 1. An arrangement of two jets in series with two ancillary fiber tubes. 2. An arrangement of two air-jets in parallel and the third in a series to the first two to produce yarns similar to siro-spun. For ring-jet spun yarns, the influence on the following yarn parameters was determined, viz. yarn hairiness using Uster and Zwiegle testing equipment, yarn evenness and imperfections determined on Uster and yarn tensile properties on the Instron tester, for the ring- jet yarns.en
dc.formattext
dc.identifier.urihttps://dspace.tul.cz/handle/15240/6685
dc.language.isoen
dc.publisherTechnická Univerzita v Libercics
dc.subjectair-jetcs
dc.subjectring-jetcs
dc.subjectair vortexcs
dc.subjectspinningcs
dc.subjectreal twistcs
dc.subjectfalse twistcs
dc.subjectwrapper fiberscs
dc.subjecthairinesscs
dc.subjectair-jeten
dc.subjectring-jeten
dc.subjectair vortexen
dc.subjectspinningen
dc.subjectreal twisten
dc.subjectfalse twisten
dc.subjectwrapper fibersen
dc.subjecthairinessen
dc.subject.verbispředenícs
dc.titleApplication of Air in Yarn Production (Ring-Jet and Air Jet Spinning)cs
dc.title.alternativeApplication of Air in Yarn Production (Ring-Jet and Air Jet Spinning)en
dc.typeThesis
local.departmentKTTcs
local.facultyFakulta textilnícs
local.identifier.stag18360
local.identifier.verbis439084
local.note.administratorsoprava_A
local.verbis.aktualizace2019-10-05 06:02:57cs
local.verbis.studijniprogramKTT Textilní inženýrství/Textile engineeringcs
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