Effect of the Weaving Conditions of Air Jet Loom on Mechanical Properties of Weft-Yarn in Woven Fabrics.

The movement characteristics of yarn in the profiled reed groove of an air-jet loom can have a great impact on the performance of the fabric. Unstable yarn movement tends to lead to weft defects, as short wefts or weft breaks may occur, which could deteriorate the quality of the final fabric. In this paper, the characteristics of the yarn movement in a profiled reed groove are numerically studied. The arbitrary Lagrangian–Eulerian method is used to solve the two-way airflow–yarn interaction and the yarn is simulated with the ball–socket model. A fluctuation ratio is defined to characterize the unsteadiness of the yarn movement. Our simulation first investigates the effect of the gap ratio of the profiled reed groove (β) on the yarn movement then compares the movements of different yarn kinds. The simulation results indicate that a larger β not only decreases gas leaks (thus saves gas consumption), but also stabilizes the yarn movement. Our simulation results also show that the movement of the yarn of polypropylene is more stable than the other two weft-yarn materials. An experiment is also conducted to validate our numerical results, which shows a favorable agreement between them. Our numerical results of the yarn movement in the profiled reed groove can provide a valuable insight into the optimization of the weft insertion system of the air-jet loom.

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Statistical Model for Predicting Compressed Air Consumption on Air-Jet Looms

Journal of Engineered Fibers and Fabrics ◽

10.1177/155892501400900306 ◽

2014 ◽

Vol 9 (3) ◽

pp. 155892501400900 ◽

Cited By ~ 1

Author(s):

Abdul Jabbar ◽

Shakeel Ahmed ◽

Tanveer Hussain ◽

Noman Haleem ◽

Faheem Ahmed

Keyword(s):

Statistical Model ◽

Compressed Air ◽

Dominant Factor ◽

Weft Yarn ◽

Prediction Ability ◽

Textile Fabrics ◽

Air Jet ◽

Consumption Values ◽

Yarn Count ◽

Air Jet Loom

Compressed air is a major component of energy costs incurred in the weaving of textile fabrics on air-jet looms. The consumption of compressed air in air-jet weaving depends on different process variables. In this study, the effect of weft yarn count, reed count, fabric width and loom speed on the compressed air consumption of air-jet loom was determined using response surface methodology. Fabric width was found to be the most dominant factor affecting the air consumption followed by loom speed, reed count, and weft yarn count respectively. A statistical model for predicting the compressed air consumption on air-jet loom was developed. The prediction ability and accuracy of the developed model was assessed by the fitted line plot between the predicted and actual air consumption values. The prediction model may be used for optimizing the production planning, estimating the share of compressed air cost in weaving a particular fabric style, and in identifying any air wastages in the weaving shed by comparing the actual compressed air consumption with that predicted by the model which was developed under controlled conditions without any air leakages.

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Influence of Controlled Weft Yarn Tension of a Single Nozzle Air-Jet Loom on the Physical Properties of the Fabric

Textile Research Journal ◽

10.1177/0040517506065604 ◽

2006 ◽

Vol 76 (8) ◽

pp. 637-645 ◽

Cited By ~ 8

Author(s):

Hooshang Nosraty ◽

Ali A. A. Jeddi ◽

Mansour Kabganian ◽

Firouz Bakhtiari nejad

Keyword(s):

Physical Properties ◽

Weft Yarn ◽

Yarn Tension ◽

Air Jet ◽

Air Jet Loom

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Influence of Twist Loss of the Staple Weft Yarn on the Air-Jet Loom

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2017.6856 ◽

2017 ◽

Vol 14 (9) ◽

pp. 4576-4579

Author(s):

Yuzheng Lu

Keyword(s):

Weft Yarn ◽

Air Jet ◽

Air Jet Loom

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Experimental investigation on air-jet loom sub-nozzles for weft yarn insertion

Textile Research Journal ◽

10.1177/0040517510391694 ◽

2010 ◽

Vol 81 (8) ◽

pp. 791-797 ◽

Cited By ~ 2

Author(s):

G. Belforte ◽

G. Mattiazzo ◽

F. Testore ◽

C. Visconte

Keyword(s):

Experimental Investigation ◽

Weft Yarn ◽

Air Jet ◽

Air Jet Loom

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An investigation of the effects of weave types on surface roughness of woven fabric

Textile Research Journal ◽

10.1177/00405175211010683 ◽

2021 ◽

pp. 004051752110106

Author(s):

Kura A Beyene ◽

Degu M Kumelachew

Keyword(s):

Surface Roughness ◽

Confidence Interval ◽

Pairwise Comparison ◽

Woven Fabrics ◽

Woven Fabric ◽

Weft Direction ◽

Air Jet ◽

Handling Characteristics ◽

Warp Tension ◽

Air Jet Loom

The fabrics intended for clothing have more emphasis on their appearance and handling characteristics such as luster, smoothness or roughness, stiffness or limpness, and draping qualities. Nowadays, evaluating fabric touch can be of great interest in the industry to match the quality needs of the consumer and the parameters for the manufacturing process. Throughout this study, the effect of weave types on the surface roughness of cotton woven fabric was investigated and analyzed. Three different weave types namely, plain 1/1, twill 1/3, and sateen 8/3 were investigated. The fabric parameters were 27*20Ne (warp/weft) count of yarn, 38*18 (EPC [Ends per Centimeters]/PPC [Picks per Centimeters]) thread density, and 710 CN/TEX (Cent-newton per Tex) with warp tension was produced by air-jet loom. The findings of this study revealed that the surface roughness values of all the fabrics increased regularly on moving from plain 1/1 weave to sateen 8/3 weave. But, the surface roughness of fabric in the weft direction is higher than in the warp direction. The weave type is statistically significant at a confidence interval of 95% and can effectively be used to describe the surface roughness for both warp and weft direction of woven fabrics. The pairwise comparison reveals that it is statistically significant for weave types in the warp and weft direction of the fabrics. This investigation and analysis of weave types on surface roughness of cotton woven fabrics help textile technologies and manufacturers to consider the weave types during the production of fabrics for different end applications.

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Preparation and properties of polyimide air-jet textured yarns and their woven fabrics

Textile Research Journal ◽

10.1177/0040517519894391 ◽

2019 ◽

Vol 90 (13-14) ◽

pp. 1507-1516

Author(s):

Shuting Huang ◽

Lina Sun ◽

Mengjuan He ◽

Jingli Tang ◽

Liqian Huang

Keyword(s):

Mechanical Properties ◽

Surface Roughness ◽

Contact Angle ◽

Heat Resistance ◽

Air Permeability ◽

Woven Fabrics ◽

Warp Yarn ◽

Air Jet ◽

Rough Model ◽

Fabric Surface

Two kinds of air-textured polyimide yarns with different overfeed ratios (0.5/2 and 8/8) were prepared by air-jet texturing technique, and three kinds of woven fabrics with similar tightness and thickness were produced with the same warp yarn but different weft yarns (polyimide flat yarn and the two air-jet textured polyimide yarns, respectively). The influence of air-jet textured yarn on the wearing properties of the fabrics was explored. The results show that, compared with the fabric containing polyimide flat yarn, the fabrics woven with polyimide air-jet textured yarns possess lower mechanical properties but have better air permeability, moisture permeability, heat resistance and luster. In addition, the smaller contact angle and larger wicking height of polyimide air-jet textured yarn fabrics indicate that the hydrophilicity of polyimide fabrics was improved. The effect of air-jet textured yarn on the hydrophilicity of polyimide fabrics was explained by Wenzel rough model and fabric surface roughness characteristics.

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An investigation of some parameter effects on the internal flow characteristics in the main nozzle

Textile Research Journal ◽

10.1177/0040517515624875 ◽

2016 ◽

Vol 87 (1) ◽

pp. 91-101 ◽

Cited By ~ 3

Author(s):

Yuzhen Jin ◽

Jingyu Cui ◽

Linhang Zhu ◽

Peifeng Lin ◽

Xudong Hu

Keyword(s):

Flow Field ◽

Textile Industry ◽

Great Influence ◽

Flow Characteristics ◽

Internal Flow ◽

Air Pressure ◽

Weft Yarn ◽

Internal Diameter ◽

Air Jet ◽

Air Jet Loom

The air-jet loom is widely used in the textile industry and the main nozzle is one of its key components. In this paper, the influence of some parameters, including the input air pressure and the structure of nozzle core and its internal diameter, on the internal flow field of the main nozzle is analyzed. Then the optimized structure of the main nozzle is proposed from the perspective of fluid dynamics. In the present simulations, the realizable [Formula: see text] model is applied to model the internal flow field of the main nozzle. The results show that the velocity in the annular throat reaches supersonic. Moreover, the pressure at the end of the nozzle core is the lowest in the main nozzle. It is also shown that the input air pressure has little effect on the axis velocity in Zone B, but on the other hand, has a great influence on the near-wall velocity field and the axis velocity in Zone C. In addition, an optimized structure of the nozzle core is proposed in this paper. It is found that with the proposed structure, the velocity boundary layer near the wall of Zone B in the accelerating tube can be well improved, and rapid diffusion of airflow in this area can be avoided. These help increase the moving speed of the weft yarn. Last but not least, we also show that decreasing of the internal diameter of the nozzle core improves the axis velocity of the weft accelerating tube. However, it brings a stronger turbulence at the same time.

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