The effect of air-jet nozzle structural parameters on new cotton rotor-jet spun yarn properties

2012 ◽  
Vol 103 (6) ◽  
pp. 595-603 ◽  
Author(s):  
A.R. Hoseinpour ◽  
S. Shaikhzadeh Najar ◽  
M. Bakhshi Jooybari
Keyword(s):  
Structural Parameters ◽  
Air Jet ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Jet Nozzle

scholarly journals Optimising the Production Process of Rieter Air Jet Spun Yarns and a Model for Prediction of their Strength

2018 ◽  
Vol 26 (1(127)) ◽  
pp. 36-41 ◽  
Author(s):  
Iwona Frydrych ◽  
Ali Demir
Keyword(s):  
Structural Parameters ◽  
Multiple Regression Model ◽  
Gauge Length ◽  
Response Surfaces ◽  
Yarn Strength ◽  
Air Jet ◽  
Spun Yarn ◽  
Nozzle Pressure ◽  
Spun Yarns ◽  
Theoretical Results

In this study, the effect of yarn linear density, delivery speed and nozzle pressure on Rieter air jet spun yarn strength was investigated. A multiple regression model was used to study the combined effect of these parameters and response surfaces were obtained. Results showed that by increasing the nozzle pressure, the yarn tensile strength improves till a specific limit, then it deteriorates afterwards. Based on the different combinations of processing variables, optimal running conditions were obtained. Along with the experiment, a mathematical model that predicts air jet spun yarn strength at a short gauge length has been presented. Fibre parameters in addition to yarn structural parameters were used to obtain the theoretical yarn strength. The results showed a satisfactory agreement between the experimental and theoretical results.

scholarly journals Open-End Yarn Properties Prediction Using HVI Fibre Properties and Process Parameters

2017 ◽  
Vol 17 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Hanen Ghanmi ◽  
Adel Ghith ◽  
Tarek Benameur
Keyword(s):  
Response Surface ◽  
Process Parameters ◽  
Processing Parameters ◽  
Raw Material ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Spun Yarns ◽  
Yarn Count ◽  
Input Variables ◽  
Rotor Spun Yarn

AbstractThis article provides three models to predict rotor spun yarn characteristics which are breaking strength, breaking elongation and unevenness. These models used noncorrelated raw material characteristics and some processing parameters. For this purpose, five different cotton blends were processed into rotor spun yarns having different metric numbers (Nm10, Nm15, Nm18, Nm22, Nm30 and Nm37). Each count was spun at different twist levels. Response surface method was used to estimate yarn quality characteristics and to study variable effects on these characteristics. In this study, predicting models are given by the analysis of response surface after many iterations in which nonsignificant terms are excluded for more accuracy and precision. It was shown that yarn count, twist and sliver properties had considerable effects on the open-end rotor spun yarn properties. This study can help industrial application since it allows a quality management-prediction based on input variables such as fibre characteristics and process parameters.

Correlation between nozzle structural parameters and breaking strength of jet vortex spun yarn

2018 ◽  
Vol 89 (13) ◽  
pp. 2648-2658
Author(s):  
Chenchen Han ◽  
Weidong Gao ◽  
Longdi Cheng
Keyword(s):  
Breaking Strength ◽  
Structural Parameters ◽  
Spun Yarn

scholarly journals Study on Fiber Overlap and Fiber Extent in Blended Spun Yarns

2013 ◽  
Vol 8 (1) ◽  
pp. 155892501300800
Author(s):  
Biswa Ranjan Das ◽  
S. M. Ishtiaque ◽  
R. S. Rengasamy
Keyword(s):  
Statistical Analysis ◽  
Structural Parameter ◽  
Significance Level ◽  
Yarn Strength ◽  
Air Jet ◽  
Spun Yarn ◽  
Spun Yarns

This article reports on the analysis of the fiber overlap and fiber extent in ring, rotor, and air-jet spun polyester/viscose blended yarns. The fiber overlap and fiber extent was measured by employing the tracer fiber technique. Statistical analysis was carried out at the 95% significance level with the single tail test to trace out specific trends executed by the spun yarns with any change in their blend proportions. The fiber overlap index and spinning-in-coefficient is correlated with tensile characteristics (static and dynamic) of the spun yarns to explore the most influential structural parameter among them for different applications. This presents study indicates that the prediction of spun yarn performance in post spinning processes is more appropriately modeled based on fiber overlap index over spinning-in-coefficient for ring and air-jet spun yarns, whereas spinning-in-coefficient is more appropriate for rotor spun yarns. For apparel use, spinning-in-coefficient is more appropriate over fiber overlap index for rotor and air-jet yarns to model the spun yarn strength as opposed to fiber overlap index for ring spun yarns.

Optimization application of air-jet nozzle in ring spinning system

2012 ◽  
Vol 9 (5) ◽  
pp. 455-462
Author(s):  
Guocheng Zhu ◽  
Sayed Ibrahim ◽  
Kremenakova
Keyword(s):  
Ring Spinning ◽  
Air Jet ◽  
Jet Nozzle

An experimental study on the airlift pump with air jet nozzle and booster pump

2009 ◽  
Vol 21 ◽  
pp. S19-S23 ◽  
Author(s):  
Nam-Cheol CHO ◽  
In-Ju HWANG ◽  
Chae-Moon LEE ◽  
Jung-Won PARK
Keyword(s):  
Experimental Study ◽  
Air Jet ◽  
Booster Pump ◽  
Jet Nozzle ◽  
Airlift Pump

Comparative study of viscose yarn properties spun with a softening device and pressure plate

2019 ◽  
Vol 89 (23-24) ◽  
pp. 4992-5005
Author(s):  
Keshuai Liu ◽  
Duo Xu ◽  
Jiang Wei ◽  
Junlong Ni ◽  
Shengming Yang ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Control Method ◽  
Breaking Strength ◽  
Main Body ◽  
Pressure Plate ◽  
Collaborative Control ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Reduce Energy Consumption ◽  
Save Energy

In order to reduce energy consumption and further improve the performance of viscose yarns, this study introduced a collaborative control method to improve spun yarn performance by contacting the spinning strand with both a softening device and a pressure plate. In this study, we analyze the improving mechanism of spun yarn performance using the softening device and pressure plate. The results show that thermal insulation layer formed between the softening device and pressure plate could heat the yarns in all directions to further re-wrap out-exposed hairiness into the main body of yarns and save energy consumption. Four groups of 19.7 tex viscose yarns were spun with different collaborative apparatus (with and without the softening device or pressure plate). Four groups of viscose yarns were tested in terms of hairiness, unevenness, and tensile property. Moreover, the experimental results show that collaborative apparatus with the softening device and pressure plate could significantly improve yarn performance, including CV value, hairiness, break elongation, and breaking strength to 11.3%, 18.94, 12.9%, and 311.0 cN, respectively.

Comparative Study of Quality Parameters of Knitted Fabric from Air-jet and Ring Spun Yarn

2005 ◽  
Vol 5 (2) ◽  
pp. 277-280 ◽  
Author(s):  
Babar Shahbaz ◽  
Nisar Ahmad Jamil . ◽  
Assad Farooq . ◽  
Faisal Saleem .
Keyword(s):  
Comparative Study ◽  
Quality Parameters ◽  
Knitted Fabric ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn
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