Evaluation of used nozzle type on yarn quality in open end spinning

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F16%3A00003618" target="_blank" >RIV/46747885:24410/16:00003618 - isvavai.cz</a>

Výsledek na webu

<a href="http://strutex.ft.tul.cz/2016/Book/STRUTEX_2016_Fulltext.pdf" target="_blank" >http://strutex.ft.tul.cz/2016/Book/STRUTEX_2016_Fulltext.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of used nozzle type on yarn quality in open end spinning

Popis výsledku v původním jazyce

The draw off nozzle is one of the most important spinning unit exchangeable components of the open end spinning system. It is generally accepted, that it’s using influences the quality of yarn and thanks to yarn breakage also production of spinning technology. There are number of comparative articles, where various draw of nozzle for various row fiber materials and yarn kinds are published. Results of these studies are not easily comparable due to less information about details of experiment realization. Main aim of this article is better understanding of this phenomena for selected fiber material, kind of yarn in terms of its end use while ensuring constant technological conditions. First step is bibliography search including summarization of assumptions compiled on the basis of published results and earlier experience. Design of experiment, its realization including data treatment and results discussion follow. The set of 100% carded cotton 29,5 tex (Ne 20) yarns produced in two levels of Phrix twist coefficient (optimal for weaving and optimal for knitting) were produced. The BT 923 Rieter Open End machine and six types of draw off nozzle were used for spinning of yarn samples from the same sliver under same technical machine settings, which meets the all combination of selected analyzed factors (end use of yarn, type of draw off nozzle). Structural and mechanical parameters of yarns were determined in terms of yarn unevenness, cumulative yarn hairiness, number of faults, summation hairiness criteria, relative yarn strength and yarn elongation.The results confirmed that the geometry of used draw of nozzle and setting of spinning process influence the fiber arrangement only in surfaces layers of yarn, which leads to significant difference in structural parameters and the mechanical ones is not affected.

Název v anglickém jazyce

Evaluation of used nozzle type on yarn quality in open end spinning

Popis výsledku anglicky

The draw off nozzle is one of the most important spinning unit exchangeable components of the open end spinning system. It is generally accepted, that it’s using influences the quality of yarn and thanks to yarn breakage also production of spinning technology. There are number of comparative articles, where various draw of nozzle for various row fiber materials and yarn kinds are published. Results of these studies are not easily comparable due to less information about details of experiment realization. Main aim of this article is better understanding of this phenomena for selected fiber material, kind of yarn in terms of its end use while ensuring constant technological conditions. First step is bibliography search including summarization of assumptions compiled on the basis of published results and earlier experience. Design of experiment, its realization including data treatment and results discussion follow. The set of 100% carded cotton 29,5 tex (Ne 20) yarns produced in two levels of Phrix twist coefficient (optimal for weaving and optimal for knitting) were produced. The BT 923 Rieter Open End machine and six types of draw off nozzle were used for spinning of yarn samples from the same sliver under same technical machine settings, which meets the all combination of selected analyzed factors (end use of yarn, type of draw off nozzle). Structural and mechanical parameters of yarns were determined in terms of yarn unevenness, cumulative yarn hairiness, number of faults, summation hairiness criteria, relative yarn strength and yarn elongation.The results confirmed that the geometry of used draw of nozzle and setting of spinning process influence the fiber arrangement only in surfaces layers of yarn, which leads to significant difference in structural parameters and the mechanical ones is not affected.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

21st International Conference STRUTEX Structure and Structural Mechanics of Textiles Conference Book

ISBN

978-80-7494-269-3

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

161-172

Název nakladatele

Technická univerzita v Liberci

Místo vydání

Liberec

Místo konání akce

Liberec

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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