Efektivní průměr nitě v pletenině
Title Alternative:Effective diameter of knitting threads
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Date
2007
Authors
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Journal ISSN
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Publisher
Technická Univerzita v Liberci
Abstract
Textília je veľmi komplikovaný systém s určitou štruktúrou, od ktorej môžme odvodiť jej chovanie a vlastnosti. Táto diplomová práca sa zaoberá problematikou stanovenia efektívneho priemeru priadze u záťažnej jednolícnej pleteniny a vplyvom tohto priemeru na štruktúru a vybrané vlastnosti pleteniny (ťažnosť). Experimentálne stanovenie efektívneho priemeru bolo prevedené dvoma spôsobmi na základe získaných hodnôt smerovej ťažnosti. Prvý spôsob vychádzal, pri výpočte efektívneho priemeru, z hodnôt získaných zo skúšky pevnosti a ťažnosti do okamihu pretrhnutia. Druhá metóda bola prevedená len pod hranicu pevnosti pleteniny. Hodnota efektívneho priemeru bola tiež stanovená nepriamo, a to na základe popisu geometrie relaxovanej pleteniny.
Fabric is a very complicated system with certain structure, from which we can describe its behavior and characteristics. This diploma work is concerned with the determination problems of an effective diameter yarn with plain jersey fabric and this diameter effect on composition and chosen properties of knitting (expansibility). Experimental determination effective diameter has been carried out by two methods on the basis of acquired values of direction of stretch. The first method of effective diameter calculation was based on values gained from test of strength and expansibility until the moment of tearing up. The second method has been carried out under the limit of strength of knitting. Value of the effective diameter was also determined indirectly, namely on the basis of geometry description of relaxation knitting.
Fabric is a very complicated system with certain structure, from which we can describe its behavior and characteristics. This diploma work is concerned with the determination problems of an effective diameter yarn with plain jersey fabric and this diameter effect on composition and chosen properties of knitting (expansibility). Experimental determination effective diameter has been carried out by two methods on the basis of acquired values of direction of stretch. The first method of effective diameter calculation was based on values gained from test of strength and expansibility until the moment of tearing up. The second method has been carried out under the limit of strength of knitting. Value of the effective diameter was also determined indirectly, namely on the basis of geometry description of relaxation knitting.
Description
katedra: KTT; přílohy: 1 CD; rozsah: 60 s., 2 s. obr. príloh
Subject(s)
pletenina, efektívny priemer priadze, ťažnosť pleteniny, relaxovaná pletenina, knitting, effective diameter yarn, expansibility knitting, relaxation knitting