Behavior of Two And Three-fold Twisted Multifilament Yarns

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F18%3A00005940" target="_blank" >RIV/46747885:24410/18:00005940 - isvavai.cz</a>

Výsledek na webu

<a href="http://vat.ft.tul.cz/2018/4/VaT_2018_4_11.pdf" target="_blank" >http://vat.ft.tul.cz/2018/4/VaT_2018_4_11.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Behavior of Two And Three-fold Twisted Multifilament Yarns

Popis výsledku v původním jazyce

This work deals with analysis of the behavior of two and three-fold twisted multifilament yarn in dependence on twist level. The structure and consequently various parameters and properties of filament fibers bundle are changed due to twisting. For experiment, two and three-fold twisted polyamide and polyester multifilament yarns were used. Selected properties such as tenacity, breaking elongation, twist take-up and structural parameters (multifilament yarn diameter and packing density) were observed and evaluated. The experiment showed that with increasing twist coefficient the twisted multifilament yarn twist take-up increases, whereas the yarn diameter decreases and the packing density increases-up to the value of twist coefficient of 60 - 70 ktex1/2m-1. Tenacity showed decreasing tendency with increasing twist coefficient from the level approximately equal to 50 ktex1/2m-1 (which corresponds to the angle of peripheral fiber inclination of betaD = 12°) due to lower coefficient of fiber stress utilization in the twisted multifilament yarn. The behavior of the two and three-fold twisted multifilament yarns in terms of utilization of fiber tenacity and yarn breaking elongation was predicted using theoretical models. The significant correlation coefficients between experimental and predicted breaking elongation verified the validity of the corresponding theoretical model. The comparison between the two and three-fold twisted multifilament yarns of the same raw material at the same twist coefficient showed that observed number of single multifilament yarns in the twisted yarn has not any influence on analyzed properties except tenacity and yarn diameter. Moreover, saturated twist of multifilament yarn was discussed.

Název v anglickém jazyce

Behavior of Two And Three-fold Twisted Multifilament Yarns

Popis výsledku anglicky

This work deals with analysis of the behavior of two and three-fold twisted multifilament yarn in dependence on twist level. The structure and consequently various parameters and properties of filament fibers bundle are changed due to twisting. For experiment, two and three-fold twisted polyamide and polyester multifilament yarns were used. Selected properties such as tenacity, breaking elongation, twist take-up and structural parameters (multifilament yarn diameter and packing density) were observed and evaluated. The experiment showed that with increasing twist coefficient the twisted multifilament yarn twist take-up increases, whereas the yarn diameter decreases and the packing density increases-up to the value of twist coefficient of 60 - 70 ktex1/2m-1. Tenacity showed decreasing tendency with increasing twist coefficient from the level approximately equal to 50 ktex1/2m-1 (which corresponds to the angle of peripheral fiber inclination of betaD = 12°) due to lower coefficient of fiber stress utilization in the twisted multifilament yarn. The behavior of the two and three-fold twisted multifilament yarns in terms of utilization of fiber tenacity and yarn breaking elongation was predicted using theoretical models. The significant correlation coefficients between experimental and predicted breaking elongation verified the validity of the corresponding theoretical model. The comparison between the two and three-fold twisted multifilament yarns of the same raw material at the same twist coefficient showed that observed number of single multifilament yarns in the twisted yarn has not any influence on analyzed properties except tenacity and yarn diameter. Moreover, saturated twist of multifilament yarn was discussed.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Fibres and textiles (Vlákna a textil)

ISSN

1335-0617

e-ISSN

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Svazek periodika

25

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

51-60

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85064503927