Journal articles: 'Textured yarns properties'

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Huang, Shuting, Lina Sun, Mengjuan He, Jingli Tang, and Liqian Huang. "Preparation and properties of polyimide air-jet textured yarns and their woven fabrics." Textile Research Journal 90, no. 13-14 (December 15, 2019): 1507–16. http://dx.doi.org/10.1177/0040517519894391.

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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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Sengupta, A. K., R. Chattopadhyay, and J. K. Sensarma. "Air-Jet Texturing of Sirospun Yarn." Textile Research Journal 62, no. 6 (June 1992): 328–34. http://dx.doi.org/10.1177/004051759206200604.

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Sirospun yarns have been texturized using an air-jet process to improve the bulk of the parent yarn. The study examines the effects of twist in the parent yarn, as well as overfeed and air pressure during texturing on the properties of the textured yarn. When suitable process parameters are chosen, Sirospun yarns lend themselves to excellent texturing with desirable properties.

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Demir, A., M. Acar, and G. R. Wray. "Air-Jet Textured Yarns: The Effects of Process and Supply Yarn Parameters on the Properties of Textured Yarns." Textile Research Journal 58, no. 6 (June 1988): 318–28. http://dx.doi.org/10.1177/004051758805800602.

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Characteristics of air-jet textured yarns are determined by the instability, linear density, and strength, together with structural properties such as loop size, loop frequency, and degree of entanglement. Such characteristics are affected by various process parameters and supply yarn properties. The effects of these parameters on the final yarn properties have been investigated using instability, linear density, and strength tests, together with SEM photographs for visual assessment of the yarn structure. Optimizing any given yarn property almost always affects other yarn characteristics, and therefore this must be remembered when selecting suitable process parameters and supply yarns for specific end uses. For a given texturing nozzle and conditions, there is an optimum filament fineness and number of filaments that can be textured effectively.

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Wickramasinghe, Ganemulle Lekamalage Dharmasri, and Peter William Foster. "Investigation of the use of steam for spun-like textured yarn manufacturing." International Journal of Clothing Science and Technology 27, no. 2 (April 20, 2015): 177–90. http://dx.doi.org/10.1108/ijcst-01-2014-0017.

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Purpose – The purpose of this paper is to investigate the use of steam in order to replace air in the production of spun-like textured yarns. Further, this paper analyse the effect of production speed on process and textured yarn properties. Design/methodology/approach – An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using standard commercial nozzles, both air-jet and steam-jet textured yarns were manufactured by varying production speed. Findings – It can be concluded that steam can be used as an alternative fluid for air in making spun-like textured yarns. Results show that yarn parameters for steam-jet texturing show a similar trend to those of air-jet texturing relative to the production speed. Further, sewing threads made from steam-jet textured yarns showed good sewability up to the speeds of 350 m/min. Research limitations/implications – Only the effect of production speed on process and yarn parameters is discussed in this paper. Production speed was limited to 350 m/min due to machine constraints. Practical implications – Steam is more economical than air to manufacture spun-like textured yarn at commercial pressures such as 8 bar. Steam-jet textured yarns could be used for commercial applications such as sewing threads at competitive speeds. Further, steam could be generated using sustainable and renewable fuel sources such as biomass. Originality/value – This research introduced steam as an alternative fluid for air in manufacturing spun-like textured yarns.

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PETAR, STOJANOVIĆ, TRAJKOVIĆ DUŠAN, STEPANOVIĆ JOVANA, RADMANOVAC NATAŠA, and STEPANOVIĆ JOVAN. "The influence of texturing process parameters on yield points and breaking forces of pes filament yarns." Industria Textila 69, no. 04 (September 1, 2018): 281–86. http://dx.doi.org/10.35530/it.069.04.1466.

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An analysis of the mechanical properties of textured PES yarns shows that the texturing speed has a significant effect on these properties. The results showed that with the increase in the texturing speed, a decreasing trend was observed in the breaking forces of the analyzed textured PES yarns at stretching degrees of 1.665 and 1.685. Some deviations of the results were found in the textured PES yarns with the applied stretching degree of 1.675. Also, the results showed that at a stretching degree of 1.685, the analyzed yarns generally have higher values of breaking forces. Applying a higher degree of stretching of PES filament yarns improves the orientation of molecular chains in the direction of the stretching force, which contributes to better mechanical characteristics of textured PES yarn. In addition, the results of the analysis of the influence of the first heater temperature show that, at higher temperatures, the textured PES yarns with higher values of breaking forces are produced. The results obtained were used to suggest the equations for predicting the yield points and breaking forces of textured PES filament yarns depending on the process parameters of production.

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Shin, Eun Joo, Eun Nyeong Lee, Soon Mo Choi, and Eun Ji Sung. "Design and development of functional fabrics with dust- and sound- absorbing properties." Journal of Industrial Textiles 48, no. 1 (August 9, 2017): 162–77. http://dx.doi.org/10.1177/1528083717725910.

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In an environmentally polluted environment, woven curtain fabrics that collect dust and pollen play an important health-protective role in interior decoration. However, devices or evaluation factors for measuring the dust adsorption ability of interior products have not been developed. To resolve this deficiency, we developed an apparatus that directly measures the dust adsorption and devised two test parameters (dust interrupting capability and fine dust adsorption capacity) for quantifying the dust adsorption. We also investigated the physical properties affecting the dust adsorption ability of fabrics with different denier weaves of air-textured yarns and draw-textured yarns, which adsorb dust in their fluffs and crimps, respectively. The air permeability and weight of the fabrics were strongly correlated with fine dust interrupting capability. The air permeability, dust adsorption, and interruption capability of the air-textured yarns largely depended on the loops formed by the overfeed rate in the weft direction. The strong sound-absorbing performance of the samples (especially at higher frequencies) was also obtained by loops, fluffs, and crimps of air-textured yarns and draw-textured yarns of fabrics. The best sound-absorbing performance was exhibited by S20, made from 760 D with many loops on the yarn surface.

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STEPANOVIĆ, JOVANA, TATJANA ŠARAC, NATAŠA RADMANOVAC, DUŠAN TRAJKOVIĆ, and JOVAN STEPANOVIĆ. "Crimping analysis of textured polyester multifilament yarn." Industria Textila 70, no. 05 (October 31, 2019): 463–69. http://dx.doi.org/10.35530/it.070.05.1602.

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The properties of textured POY PES multifilament yarns are conditioned by texturing temperature, texturing speed, stretching degree and by the ratio of disc peripheral speed and yarn speed. In the paper attention is focused on crimping of yarns. New method for defining crimping limits is proposed. The method is based on the flow analysis of the force-elongation function. POY multifilament polyester yarns, having the fineness of 167f36x1 dtex were analyzed. The texturing of PES multifilament yarns was performed using different first heater temperatures (350 oC, 400 oC, 450 oC) and maintaining the constant temperature of the second heater (180 oC), then with different texturing speeds (500 m/min, 600 m/min, 700 m/min, 900 m/min, 1000 m/min, 1100 m/min), using different ratio of the disc circumferential speed to yarn speed (2.15, 2.20, 2.25) and at the extension degree of 1.665.

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ÇELİK, Halil İbrahim, Hatice Kübra KAYNAK, Esin SARIOĞLU, and Gizem KARAKAN GÜNAYDIN. "THE EFFECT OF FIBER CROSS-SECTIONAL SHAPE AND TEXTURING TEMPERATURE ON KNITTED FABRIC AIR PERMEABILITY." TEXTEH Proceedings 2019 (November 5, 2019): 100–104. http://dx.doi.org/10.35530/tt.2019.23.

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Texturized yarns are often preferred especially in home textiles and sportswear. To improve polyester filament properties, mechanical, thermal, chemical and combinations of texturing processes are applied. With these processes, filament yarns take on a curved and voluminous structure and gain a permanent form. Properties of the texturized yarn can be varied as raw materials properties, machine type and process factors. This study covers the investigation of the effect of cross-sectional shape of fiber (round and trilobal) and texturing process temperature (150, 175 and 200 0C) on air permeability of false twist textured polyester single jersey knitted fabrics. Results showed that the highest air permeability value was obtained from knitted fabric with round fiber cross-sectional shape polyester filament textured at 150 0C. According to the statistical analysis, both the fiber cross-sectional shape and process temperature were found to have a significant effect on air permeability property.

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Azimi, Bahareh, Mohammad Amani Tehran, and Mohammad Reza Mohades Mojtahedi. "Prediction of False Twist Textured Yarn Properties by Artificial Neural Network Methodology." Journal of Engineered Fibers and Fabrics 8, no. 3 (September 2013): 155892501300800. http://dx.doi.org/10.1177/155892501300800312.

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The false twist texturing method is one of the most common texturing techniques. This process depends on parameters such as tension, twist, and heater temperature. As false-twist texturing is a process which includes close interactions between machine working parameters and textured yarn properties, the effect of process parameters on yarn properties have been widely investigated. In this study the effect of first heater temperature, setting overfeed, and D/Y on the tenacity of set yarns and the effect of twist, texturing speed, and first heater temperature on crimp stability of stretch yarns are predicted using artificial neural network methodology.

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Sarıoğlu, Esin, Osman Babaarslan, and Münevver Ertek Avcı. "Effect of Filament Fineness on Composite Yarn Residual Torque." Autex Research Journal 18, no. 1 (March 1, 2018): 7–12. http://dx.doi.org/10.1515/aut-2016-0036.

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Abstract Yarn residual torque or twist liveliness occurs when the twist is imparted to spin the fibers during yarn formation. It causes yarn snarling, which is an undesirable property and can lead the problems for further processes such as weaving and knitting. It affects the spirality of knitted fabrics and skewness of woven fabrics. Generally, yarn residual torque depends on yarn twist, yarn linear density, and fiber properties used. Composite yarns are widely produced to exploit two yarns with different properties such on optimum way at the same time and these yarns can be produced by wrapping sheath fibers around filament core fiber with a certain twist. In this study, the effect of filament fineness used as core component of composite yarn on residual torque was analyzed. Thus, the false twist textured polyester filament yarns with different filament fineness were used to produce composite yarns with different yarn count. The variance analysis was performed to determine the significance of twist liveliness of filament yarns and yarn count on yarn twist liveliness. Results showed that there is a statistically significant differences at significance level of α=0.05 between filament fineness and yarn residual torque of composite yarns.

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Abbasi, Marjan, Mohammad Reza Mohades Mojtahedi, and Richard Kotek. "Experimental study on texturability of filament yarns produced from recycled PET." Textile Research Journal 90, no. 23-24 (May 28, 2020): 2703–13. http://dx.doi.org/10.1177/0040517520925859.

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In the present work, the texturability of filament yarns produced from recycled bottle grade polyethylene terephthalate (R-PET) and new fiber grade PET (FG-PET) were investigated and compared experimentally. Yarn spun on a spin-draw spinning machine was draw-textured. Elongation at break in each fiber was set to reach 30 ± 5% in the texturing machine. The effect of the draw-texturing conditions on thermomechanical, structural, and crimp properties were examined. Draw-texturing behaviors of the fibers were analyzed using differential scanning calorimetry and measurements of intrinsic viscosity, mechanical and crimp properties, density, and X-ray diffraction. The results indicate that crystallinity of the textured yarn from R- PET and FG-PET has increased compared to the semi-drawn yarns. Further, the lateral dimensions of the R-PET crystals are relatively well developed. Crimp properties show nearly similar response for two polymer yarns for the texturing process. It was found that R-PET can be the premier feed supply for the draw-texturing process and that filaments with appropriate confidence could be obtained from the R-PET.

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Sarioğlu, Esin, and Osman Babaarslan. "A Comparative Strength Analysis of Denim Fabrics Made from Core-Spun Yarns Containing Textured Microfilaments." Journal of Engineered Fibers and Fabrics 12, no. 1 (March 2017): 155892501701200. http://dx.doi.org/10.1177/155892501701200103.

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Denim fabric is one of the most popular casual wear fabrics worldwide. The performance characteristics of denim fabrics have been improved by using functional fibers and elastane to make them comfortable to wear. Elastane fibers with high elasticity are used extensively in denim fabric production. Elastane fibers are generally used as the core part of the core-spun yarns as weft yarns. Besides elastane fibers; polyester and polyester derivatives are commonly used. This study examines the effects of filament fineness and yarn count on denim fabric performance. Textured polyester filaments with medium, fine and micro linear densities were used as the core part of the core-spun yarn and cotton fiber was used as sheath material. Yarn samples manufactured with the same production parameters at different yarn count were used as weft yarns of denim fabrics. Denim fabrics were produced with the same fabric cover factor to eliminate yarn count difference effects. Tensile, static tearing and dynamic tearing properties of denim fabrics were determined. To evaluate the effects of core part, 100 % cotton denim fabric was manufactured and tested. Statistical analysis was performed to analyze the significance of filament fineness and yarn count ratio. Results showed that there was a significant effect of filament fineness on tensile, static tearing and dynamic tearing properties of denim fabrics. In addition, it was found that yarn count had no significance effect on static tearing properties of denim fabrics.

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SELCEN ÖZKAN, HACIOĞULLARI, and BABAARSLAN OSMAN. "An investigation on the properties of polyester textured yarns produced with different fiber cross-sectional shapes." Industria Textila 69, no. 04 (September 1, 2018): 270–76. http://dx.doi.org/10.35530/it.069.04.1281.

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In this study, the effects of different fiber cross-sectional shapes and yarn linear density values on Partially Oriented Yarn (POY) and textured yarn characteristics have been examined. In experiment, five different cross-sectional shapes, namely round, trilobal, tetra, hexsa and octolobal and two different linear densities have been used and tenacityelongation, crimp and shrinkage tests have been applied to the yarns. As a result, the round and octolobal crosssectional shapes lead to yarn formation with high tenacity and breaking elongation, on the other hand trilobal and hexsa cause low tenacity and breaking elongation. The round cross-section has provided yarn formation with high crimp and low shrinkage, the hexsa and tetra cross-sectional shapes have caused lower crimp and high shrinkage. It was also observed that the increase in the linear density has caused a decrease in yarn tenacity, however this has increased the crimp and shrinkage behaviours of the yarns.

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Baribina, Natalija, Ilze Baltina, and Alexander Oks. "Application of Additional Coating for Conductive Yarns Protection against Washing." Key Engineering Materials 762 (February 2018): 396–401. http://dx.doi.org/10.4028/www.scientific.net/kem.762.396.

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The conductive yarn is an essential component of the smart textile making the product light and comfortable to wear. Nevertheless, one of the most common problems is care that limits the use of the product. Application of additional coating to the yarn renders it water-repellent properties and allows reduction of the negative impact of water on its performance. During the research additional coatings were applied to conductive yarns, with the aim of minimizing electrical resistivity changes caused by washing cycles. Two types of coatings were applied to the yarns, they were washed and tested. The article describes changes in the electrical resistance of different conductors depending on the linear density of the yarn, the type of coating applied and the number of washing cycles. The electrical resistance of electrically conductive yarns increases with washing until they become non-conductive. The electrical resistance of non-textured yarns increases more slowly and the smaller increase is observed in thick yarns. The water-repellent silicone coating applied to yarns reduces the electrical resistance increase rate and the yarns retain their conductivity over more washing cycles.

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Mangat, Muhammad Mushtaq, Tanveer Hussain, and Vladimir Bajzik. "Impact of Different Weft Materials and Washing Treatments on Moisture Management Characteristics of Denim." Journal of Engineered Fibers and Fabrics 7, no. 1 (March 2012): 155892501200700. http://dx.doi.org/10.1177/155892501200700104.

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The aim of this study was to investigate the effects of different types of weft yarn materials and washing treatments on the moisture management properties of denim fabrics. Fabrics were developed with five different types of weft yarns made of cotton, polyester, spun polypropylene, air-textured polypropylene and stuffer-box crimped polypropylene. In all cases 100% cotton yarn was used as warp. Samples from each fabric were subjected to 10 diverse types of washing/finishing treatments and the treated samples were tested for dissimilar moisture management indices on an SDL Atlas moisture management tester. The statistical analyses of the test data show that the effect of different types of weft yarns and washing treatments is significant. Based on the results of this study, denim fabrics can be developed with enhanced moisture management properties.

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Kocaman, Recep Türkay, Dilbar Aibibu, and Chokri Cherif. "New Image Analysis Method for Determination of the Inter-Fibre Pore Size Intensity of Polyester Woven Barrier Fabrics." Fibres and Textiles in Eastern Europe 26, no. 4(130) (August 31, 2018): 67–74. http://dx.doi.org/10.5604/01.3001.0012.1315.

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Porosity is an important characteristic of a filter textile, which affects permeability and retention properties. Determination of the inter-yarn and inter-fibre pore sizes of barrier textiles is also required to assess the filter behaviour of these textiles. In this study, a software tool was developed to detect the inter-fibre pore size distribution and pore size intensity of multifilament woven barrier fabrics using cross-section images. Fabrics were chosen according to their fabric construction parameters, such as the fabric index, weft yarn filament fineness and weft yarn structure (flat or textured). Microscopic cross-section images of weft yarns were taken, processed to binary images, and analysed with respect to the pore size distribution, number of pore lengths and pore intensity. It was also analysed how the fabric index, filament cross-section and filament fineness affect the inter-fibre pore lengths and separation level proposed. It was found that weft yarns with wider lengths and lower height showed wider inter-fibre pores. Inter-fibre pores decreased with a decrease in filament fineness. Moreover the separation level proposed deviated from the 90% level depending on the fabric index. This deviation was very small in samples with reduced filament fineness and textured samples. The separation level proposed will be useful to understand the effect of fabric construction parameters to obtain targeted properties regarding inter-fibre and inter-yarn pore size.

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BALCI KILIC, Gonca. "EFFECTSOFINTERMINGLING PRESSURE LEVELON PROPERTIES OF POLYESTER KNITTED FABRICS." TEXTEH Proceedings 2019 (November 5, 2019): 136–39. http://dx.doi.org/10.35530/tt.2019.29.

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The texturing process is a method to imparts the look and feel of synthetic yarns to yarns made from natural fibers and give it even more superior properties. Texturing process provides bulkiness, extra stretch, porosity, better handle, air permeability and comfort properties to flat continuous filament yarns. Intermingling is an optional process which is made to hold together filaments in the structure of textured yarns. Intermingling pressure level is one of the most significant factors that affect properties of yarns and fabrics produced from these yarns. This study examined the effects of intermingling pressure level (not intermingled, 0.2 bar, 0.5 bar, 0.8 bar and 1.0 bar) on properties of fabrics made of multifilament yarns. For this purpose, physical, visual, surface and comfort properties of polyester knitted fabrics were measured. Within the context of the study, porosity and visual properties were analyzed with image analysis techniques. Results showed that, intermingling pressure level has statistically significant effects on the properties of fabrics such as unit weight, thickness, air permeability and porosity. However, intermingling pressure level has no effect on fabric roughness and overall moisture management capability (OMMC). Although all structural parameters are the same for the yarns and the fabrics, intermingling pressure level has also crucial effect on fabric surface appearances.

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Shaikh, Tasnim N., and Someswar S. Bhattacharya. "Deriving an empirical formula to determine the optimum level of false-twist in mechanically-crimped textured polyester yarn." Textile Research Journal 81, no. 19 (September 23, 2011): 1995–2005. http://dx.doi.org/10.1177/0040517511407374.

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Flat polyester yarn is bulked by the mechanical crimp texturizing process. The magnitude of the false-twist, introduced together with the torsional rigidity of the supply yarn, has a significant effect on the transformation process. The torsional rigidity of the supply yarn is in turn influenced by its fineness and bending characteristics. It is therefore deemed necessary to establish a mathematical relationship between the optimum false-twist level and the yarn fineness for materials with known bending characteristics. Such a relationship may help in producing a yarn with optimum bulk properties, while minimizing resource utilization and waste generation. This paper reports research work done in this direction. Polyester yarn is chosen for this investigation as it has a wide range of applications. Fully drawn multifilament polyester yarns, with different linear densities, are textured on a single-head mechanical crimp texturing machine. The results are analysed with the help of polynomial curve fitting (Polyfit) using MATLAB. This mathematical tool facilitated the derivation of the desired formula (polynomial equation) for the calculation of optimum false-twist level for fully drawn multifilament polyester yarns undergoing mechanical crimp texturizing.

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Hosseinalizadeh, Mehrdad, Mehdi K. Dolatabadi, Saeed S. Najar, and Reza E. Farsani. "Blending quality of co-air-textured yarn: Optimization parameters of Kevlar/polypropylene applicable for thermoplastic composites." Journal of Composite Materials 53, no. 13 (November 12, 2018): 1791–802. http://dx.doi.org/10.1177/0021998318811510.

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Nowadays, hybrid yarns, which consist of at least one-component thermoplastic fibers, are used in thermoplastic textile composites. The uniformity of the fibers in hybrid yarns is a key factor that directly influences the composite properties. Accordingly, one of the main aims of the present research was to optimize the air texturing parameters to achieve the uniform blending of Kevlar/polypropylene fibers. To evaluate the blending uniformity of yarns, the radial, lateral and angular distribution of fibers, based on the position of the pixels of the constituent fibers, was evaluated using the image processing data of yarn cross sections. According to this method, the production parameters, namely, blend ratio, delivery speed, feed rate and air pressure, were optimized simultaneously via the response surface method to obtain the blending uniformity of the fibers. The uniform blending distribution could be achieved by a higher blend ratio of Kevlar/PP (1:6), a lower production speed (300 m/min), a higher feed rate (500 m/min), and a higher air pressure (10 bar). Eventually, it was confirmed that there was a good correlation between the blending quality of the real samples and the predicted quality of the response surface method model.

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Mehrabli, Bahareh, Mohammad Reza Mohaddes Mojtahedi, and Ahmad Mousavi Shoushtari. "Investigation on Physical Properties of Textured Yarns Produced from PP/LDPE Blends." Journal of Engineered Fibers and Fabrics 9, no. 4 (December 2014): 155892501400900. http://dx.doi.org/10.1177/155892501400900416.

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Presently, for economic and technological concerns, production of blended fibers has attracted the attention of industrial technologists and academic researchers. The importance of blended fibers can be derived from its use in the various fields such as geotextiles, composites, and insulation. In this study, PP/LDPE blended filament yarns with blend ratios of 100/0, 99/1, 97/3, 95/5, 93/7, 90/10 were melt spun, drawn, and textured at temperatures of 110, 120,130,140 and 150°C. Tensile properties (except modulus) of the textured yarns spun from PP/LDPE blends were found to be higher than those of pure PP at most applied texturing temperatures. Crimp properties of samples were improved by increasing the texturing temperature. By increasing the LDPE fraction in samples, especially at 140°C and 150°C, however, lower crimp properties were observed.

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Kim, Hyun Ah, and Seung Jin Kim. "Effects of Processing Parameters on the Mechanical Properties of Aramid Air Textured Yarns for Protective Clothing." Autex Research Journal 18, no. 2 (June 1, 2018): 149–59. http://dx.doi.org/10.1515/aut-2017-0026.

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Abstract This study examined the mechanical properties of a para-aramid filament according to the processing conditions of air-jet textured yarns (ATY). The specimens were prepared by changing the yarn speed, over feed ratio, air pressure, and heater temperature, which are important processing factors in the ATY process. The basic physical properties of the ATY, such as denier, tenacity, breaking strain, and initial modulus, were measured and their thermal shrinkage, such as dry and wet shrinkage, were measured to determine the thermal stability of the aramid ATY. In addition, the instability of para-aramid ATY were measured and assessed with the loop formation of ATY, according to the ATY process parameters. An examination of the effects of process parameters on the physical properties of aramid ATY revealed the core overfeed and air pressure to be the main factors. A high core overfeed and air pressure make the aramid ATY crimpy in the yarn core and entangle the fluffy loops on the yarn surface, resulting in an increase in the yarn linear density and breaking strain as well as a decrease in the tenacity and initial modulus. In contrast, these yarn physical properties were unaffected by the yarn speed, heater temperature, and wetting treatment. In addition, the dry and wet thermal shrinkage were unaffected by the process parameters of ATY. On the other hand, the instability decreased with increasing core overfeed and heater temperature and increased with increasing air pressure. These results showed that a high core overfeed makes the aramid ATY crimpy with an entangled yarn structure, and high air pressure helps provide small loops on the yarn surface. Finally, a high heater temperature makes the crimpy ATY structure more stable due to the strong heat set, which results in low instability.

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Samuel, Bethalihem Teferi, Marcin Barburski, Jaroslaw R. Blaszczak, Ewa Witczak, and Katarzyna Abramczyk. "The Influence of Yarn and Weave Structures on Acoustic Materials and the Effect of Different Acoustic Signal Incidence Angles on Woven Fabric Absorption Possibilities." Materials 14, no. 11 (May 25, 2021): 2814. http://dx.doi.org/10.3390/ma14112814.

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Utilizing textile-based acoustic materials can be considered basically from two points of view. First, it may be used as a sound absorbing material. Second, it may be used as a decoration that gives the surrounding area a new artistic appearance. To improve the acoustic possibilities of any woven fabric, it is necessary to study the influences of yarn characteristics and the internal structures of weave interlacement. To understand the impact of the yarn on the fabric, the samples were prepared using only polyester fiber as textured, twisted, and staple yarns. Regarding this experiment, the basic weave’s structure type, such as plain, rib, sateen, and twill, were used. Overall, 16 woven fabrics were prepared. The investigation was performed in the range of low to medium acoustic frequencies. The experiments were conducted in an anechoic chamber. Compared to other yarn types, fabrics formed from textured polyester yarn had higher sound absorption properties. Moreover, the observed results show that the different incidence angles of acoustic signals influence the measured sound absorption properties of a textile.

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Tehran, Mohammad Amani, Bahareh Azimi, and Mohammad Reza Mohades Mojtahedi. "Investigating the Effect of False Twist Texturing Process on the Color Coordinates Variation of Spun-dyed Polyester Filament Yarns." Journal of Engineered Fibers and Fabrics 6, no. 3 (September 2011): 155892501100600. http://dx.doi.org/10.1177/155892501100600307.

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In this study, color coordinates variation of spun-dyed polyester filament yarns subjected to the false twist texturing process was investigated. Furthermore, the effect of different processing parameters including D/Y ratio, twist, heater temperature, texturing speed, overfeed, the draw ratio and intermingling process on the color coordinates variation of textured yarns was studied. Finally, the magnitude of color variation was analyzed by studying the structure, crimp and tensile properties of the yarns. The results show that the nature of texturing and intermingling process had a significant effect on the color variation of yarns but different processing parameters had no significant effect. The level of these variations can be expressed by observing the fiber geometry change along the texturing process.

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Lou, Ching-Wen, Chao-Tsang Lu, Ching-Wen Lin, An-Pang Chen, Shr-Bin Jang, and Jia-Horng Lin. "Manufacturing Technique and Deodorization Effectiveness against Ammonia Gas of Bamboo Charcoal/Spandex Complex Knitted Fabrics." Journal of Engineered Fibers and Fabrics 7, no. 2 (June 2012): 155892501200700. http://dx.doi.org/10.1177/155892501200700216.

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This research creates bamboo charcoal/spandex (BC/S) complex yarns from spandex and bamboo charcoal polyester textured yarn. In order to manufacture a BC/S complex yarn with better mechanical properties in tensile strength and strain, the expanded multiples of the spandex are changed, as are the wrap counts of the BC/S complex yarn and the speed of the rotor twister. The resulting spandex has a maximum breaking strength of 4.52 g/d when the expanded multiple is 3.5, and the BC/S complex yarn has a wrap count of 2 turns/cm. Furthermore, the maximum breaking elongation is 24.57% when the expanded multiple is 3.5, and the wrap count is 4.5 turns/cm. This paper also explores the ammonia gas adsorption properties (deodorization) of BC/S complex yarn, and discovers that polyester knitted fabric is capable of deodorizing 39% of NH3, while 1.2% bamboo charcoal/polyester knitted fabric can deodorize 53% of NH3, and BC/S complex knitted fabric can deodorize 55%-61% of NH3.

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Kothari, V. K., A. K. Sengupta, R. S. Rengasamy, and B. C. Goswami. "Influence of Interfilament Friction on Structure and Properties of Air Textured Yarns." Textile Research Journal 59, no. 6 (June 1989): 317–23. http://dx.doi.org/10.1177/004051758905900602.

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Rodionov, V. A. "Properties of Textured Yarns of Low Linear Density by Commercial Package Layers." Fibre Chemistry 37, no. 1 (January 2005): 44–47. http://dx.doi.org/10.1007/s10692-005-0050-4.

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Yildirim, Kenan, Sule Altun, and Yusuf Ulcay. "Relationship between Yarn Properties and Process Parameters in False-Twist Textured Yarn." Journal of Engineered Fibers and Fabrics 4, no. 2 (June 2009): 155892500900400. http://dx.doi.org/10.1177/155892500900400205.

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The properties of false-twist textured yarns in the aspects of crimp characteristic and tensile behavior depend mainly on the draw ratio and the D/Y ratio. This study comprises investigations of the effect of D/Y ratio and draw ratio on the crimp and tensile properties and percent crystallinity. While there was no noticeable change on the percent crystallinity by altering these parameters, tenacity increased and crimp contraction decreased with increasing draw ratio, and crimp stability decreased when the D/Y ratio increased. K/S value also decreased with increasing draw ratio.

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HAKAN, ÖZDEMIR, and CAMGÖZ BERKAY. "The gamma radiation shielding effectiveness of textured steel yarn based fabrics." Industria Textila 69, no. 01 (March 1, 2018): 44–49. http://dx.doi.org/10.35530/it.069.01.1347.

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Lead aprons that are lead-shielding products are generally used for personal protection of physicians and patients from X-ray (gamma) radiation during medical operations; lead has environmental disadvantages, with high toxicity, though. Therefore, the aim of this research was to produce an environmentally friendly and flexible textile-based radiation shielding material. In this work, 2/2 twill, 3/1 twill, Herringbone, Whipcord, which are twill derivatives, Barathea and Crêpe woven fabrics, which are sateen derivatives, woven with textured steel yarns, which have soft feeling and flexibility, and gamma radiation shielding effectiveness of these fabrics were investigated and were not studied in the references. The effects of fabric structural characteristics such as weave, conductive weft yarn density, fabric thickness and porosity on these properties were analysed graphically and statistically. It is observed that with the biggest thicknesses and lowest porosities, Barathea and Crêpe woven fabrics performed better gamma radiation shielding performance than other woven fabrics. The samples F1 and E1, woven with Barathea and Crêpe weave, have the highest gamma radiation shielding effectiveness, thanks to the highest fabric thicknesses and lowest porosities. In addition, the increases of textured steel yarn density improved the gamma radiation shielding effectiveness of woven fabrics.

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Kim, Hyun Ah, and Seung Jin Kim. "Physical properties of para-aramid/nylon hybrid air textured yarns for protective clothing." Fibers and Polymers 15, no. 11 (November 2014): 2428–36. http://dx.doi.org/10.1007/s12221-014-2428-5.

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Rengasamy, R. S., V. K. Kothari, and A. Patnaik. "Effect of Process Variables and Feeder Yarn Properties on the Properties of Core-and-Effect and Normal Air-Jet Textured Yarns." Textile Research Journal 74, no. 3 (March 2004): 259–64. http://dx.doi.org/10.1177/004051750407400313.

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Ghassemi, A., M. R. M. Mojtahedi, and R. Semnani Rahbar. "Investigation on the physical and structural properties of melt-spun multifilament yarns, drawn yarns and textured yarns produced from blend of PP and oxidized PP." Fibers and Polymers 12, no. 6 (September 2011): 789–94. http://dx.doi.org/10.1007/s12221-011-0789-6.

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Zhang, Jing, Zhilong Zhang, Shanyuan Wang, and Xiaohong Qing. "Properties of core-and-effect air textured yarns blended by diacetate and polyester filaments." Fibers and Polymers 8, no. 1 (January 2007): 84–88. http://dx.doi.org/10.1007/bf02908164.

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Özkan, İlkan. "Investigation on antimicrobial activity and electromagnetic shielding effectiveness of metal composite single jersey fabrics." Journal of Engineered Fibers and Fabrics 14 (January 2019): 155892501989598. http://dx.doi.org/10.1177/1558925019895984.

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In this study, antimicrobial and electromagnetic shielding properties of metal composite single jersey fabrics were investigated. For this purpose, stainless steel wire, copper wire, and metalized silver polyamide filament were commingled with textured polyester. The composite yarns were knitted to single jersey fabrics. Electromagnetic shielding effectiveness of samples was measured according to free space test method between 0.8 and 5.2 GHz frequency range. In addition, antibacterial and antifungal activity tests were performed for the overall technical characterization of composite fabrics. The effects of metal type, filament form on electromagnetic shielding effectiveness, and antimicrobial properties were examined. All composite fabrics showed electromagnetic shielding properties at different levels up to 35 dB in vertical direction. Fabrics including metalized multifilament yarn exhibit higher electromagnetic shielding effectiveness in both vertical and horizontal directions. In addition, antibacterial activity level of metalized silver polyamide and copper composite fabrics reached up to 99% against Klebsiella pneumoniae and Staphylococcus aureus. Furthermore, Aspergillus niger could not grow on these composite fabrics.

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Trajković, Dušan, Marija Savic, Mirjana Kostic, Divna Majstorovic, Petar Stojanovic, and Jovan Stepanovic. "Dependence of Structural Characteristics of Polyamide Textured Yarns on the Parameters of the False Twist Yarn Texturing Process." Fibres and Textiles in Eastern Europe 25 (June 30, 2017): 79–85. http://dx.doi.org/10.5604/01.3001.0010.1694.

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In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. These changes are related to changes in the texturing parameters and mechanical properties of yarn. In this paper, investigated is the effect of technical-technological texturing parameters in the false twist texturing process on the structure of PA6.6 yarns. POY multifilament PA6.6 with a fineness of 22f07x1 dtex was used as experimental material. The yarn was textured on a friction texturing machine - ICBT model FT 15 E3. The exiting yarn speed (Vi) changed as 600, 700, 800 and 900 m/min; the heater temperature (T) was 200, 210 and 220 °C, and the ratio of the disk surface speed to the linear yarn speed (D/Y) was 1.9 and 2.1. The values of strain were kept constant at 1.305 (tension in texturing zone) and 0,954 in the winding zone. Analysed were the density, degree of crystallinity, degree of orientation, single filament diameter, the content of -NH2 and -COOH end groups, and the total content of end groups. From the results obtained it can be seen that the effect of the heater temperature is more significant than that of Vi and D/Y on the structural characteristics analysed. Analysing the experimental results it was found that linear positive correlations were established between the texturing speed and end (-NH2) groups, the texturing speed and end (-COOH) groups and the texturing speed and the total content of end groups. The correlation factor between the process parameters and yarn structural characteristics analysed is determined.

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Saeedi Asl, Sina, Nazanin Ezazshahabi, and Mohammadreza Mohaddes Mojtahedi. "Characterization of fabric properties knitted from multifilament polyester textured yarns with various number of filaments." Journal of The Textile Institute 110, no. 12 (May 25, 2019): 1774–83. http://dx.doi.org/10.1080/00405000.2019.1619970.

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Sengupta, A. K., V. K. Kothari, and J. K. Sensarma. "Effects of Filament Modulus and Linear Density on the Properties of Air-Jet Textured Yarns." Textile Research Journal 66, no. 7 (July 1996): 452–55. http://dx.doi.org/10.1177/004051759606600706.

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Siyao, Mao, Su Liu, Zhang Peihua, and Long Hairu. "Functional Investigation on Automotive Interior Materials Based on Variable Knitted Structural Parameters." Polymers 12, no. 11 (October 23, 2020): 2455. http://dx.doi.org/10.3390/polym12112455.

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With the rapid development of technical textiles, more and more researchers have focused on developing high performance textiles to meet various needs. The automotive industry is a major market for technical textiles. Compared to other types of fabric, weft-knitted fabric has good extensibility and elasticity, as well as a hand-feel, and it is gradually becoming the preferred type of interior fabric for automobiles. This paper aims to develop an automotive fabric with good comfort and durability. Sixteen types of weft-knitted fabrics with eight different structures and two different materials (draw textured polyester and textured polyamide yarn) were fabricated using a computerized flat knitting machine. Their durability and level of comfort were examined by measuring the tensile and tear strengths, abrasion resistance and air permeability. A fuzzy comprehensive evaluation method was employed to compare the comprehensive properties of the fabric. The results indicated that the overall performance of DTPA fabric was better than DTPE fabric, and an optimum structure was selected for an automotive interior. Meanwhile, we found that the air permeability of the fabric could be increased by using tuck stitches and that the strength and dimensional stability of fabric could be increased by adding tuck stitches and weft-insert yarns. The findings contribute to the field of technical textiles and provide ideas for the development of high-performance textiles.

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Liu, Qingsheng, Yuqi Zhou, Ying Shen, Yuhao Li, Haiyang Guo, Bingyao Deng, and Yonggui Li. "Morphology, Structure, and Properties of Conductive Polylactide Fibers Prepared Using Polyvinyl Acetate and Multiwalled Carbon Nanotubes." Coatings 9, no. 10 (October 9, 2019): 651. http://dx.doi.org/10.3390/coatings9100651.

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Two kinds of conductive polylactide fibers—polylactide pre-oriented yarns (PLA-POY) and PLA-drawn textured yarns (PLA-DTY) are prepared by coating method using ethyl acetate as solvent, multiwalled carbon nanotubes (MWCNTs) as conductive filler, and polyvinyl acetate (PVAc) as dispersing agent and coating agent. The PLA fibers are characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), resistance meter, and tensile test. The results show that PLA-POY and PLA-DTY have been coated successfully by PVAc and MWCNTs. After PLA-POY fibers are treated by ethyl acetate, the highly porous structures form because of swelling and the subsequent solvent-induced crystallization of PLA-POY fibers with low crystallinity. This causes the tensile force to decrease. However, PVAc can improve the tensile force of the treated PLA-POY fibers. For PLA-DTY fibers, the effect of ethyl acetate on surface morphology is small. Therefore, the treated PLA-DTY fibers own higher tensile properties than original PLA-DTY fibers due to the existence of PVAc. With the increase of PVAc and MWCNTs, the conductive properties of the PLA fibers will increase. The electrical conductivity of PLA-POY and PLA-DTY fibers can reach 0.53 and 0.13 µs/cm, respectively.

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Kothari, V. K., R. Chattopadhyay, and P. Agrawal. "Studies on Filament Migration in Air-jet Textured Yarns and the Relationship between Migration Parameters and Properties." Journal of the Textile Institute 87, no. 2 (January 1996): 335–48. http://dx.doi.org/10.1080/00405009608659086.

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GÜNAYDIN, Gizem Karakan, Mine AKGÜN, Ayça GÜRARDA, Erhan Kenan ÇEVEN, and Bülent ASLAN. "INVESTIGATIONOF FRICTION COEFFICIENTOF DRAPERY FABRICS TREATED WITH DIFFERENT RATIO OF FLAME RETARDANT." TEXTEH Proceedings 2019 (November 5, 2019): 52–57. http://dx.doi.org/10.35530/tt.2019.12.

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As the security precautions with respect to new standards for the furnishing textiles in big platforms such as concert, theatre halls have increased, flame retardancy has become one of the vital required property for drapery fabrics. However, those kind of additional treatment processes may lead to some differences in fabric properties such as friction which should be considered for the consumers. This study aims to evaluate the influence of using different ratio of flame retardant chemicals (g/l) on friction coefficient of drapery fabrics. For this purpose, nine types of fabrics composed of three different weft density (9, 11, 13 threads/cm) were selected. The warp yarns were selected as 400/200 denier/filament while the weft yarns were selected as 800 /200 denier/filament textured micro polyester yarns. Three levels for flame retardant (0, 60 and 90 g/l) were determined as the finishing processes. After the dobby fabrics were woven and exposed to finishing treatments; Friction coefficient values were recorded with Labthink Param MXD-02. ANOVA tests were performed in order to evaluate the significant effect of weft density and flame retardant chemical ratio on friction properties of drapery fabrics. Additionally, SNK tests were conducted for the comparison of means of friction values of drapery fabrics produced at different weft density also of the samples treated with different flame retardant chemical ratio. Experimental results revealed that structural parameters and the finishing processes were influential factors on the surface frictional characteristics of the fabrics. It was clearly observed that surface friction coefficients of drapery fabrics decreased due to the flame retardant process.

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Mahmood, Ali Hasan, Laraib Alam Khan, and Bilal Zahid. "Mechanical properties of composites made from locally manufactured carbon fabrics and the composites produced from air-textured glass yarns." Fibers and Polymers 15, no. 5 (May 2014): 1004–9. http://dx.doi.org/10.1007/s12221-014-1004-3.

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SAVIC, MARIJA, DUSAN TRAJKOVIC, JOVAN STEPANOVIC, PETAR STOJANOVIC, MIRJANA KOSTIC, and DIVNA MAJSTOROVIC. "Influence of heater temperature and texturing speed on the physical-mechanical properties of polyamide textured yarns in false-twist texturing process." Industria Textila 68, no. 6 (December 15, 2017): 451–57. http://dx.doi.org/10.35530/it.068.06.1482.

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Anand, S. C., and P. J. Lawton. "The Dimensional Properties of Single-Jersey Loop-Pile Fabrics. Part II: Studies of Fabrics With Textured Continuous-filament Yarns in the Ground Structure." Journal of The Textile Institute 78, no. 5 (January 1987): 349–56. http://dx.doi.org/10.1080/00405008708658261.

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Tong, Xiao Su. "An Approach to Real Exhibition of the Yarn Texture in the Simulation of the Fabric Appearance." Advanced Materials Research 295-297 (July 2011): 2245–48. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.2245.

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luster is an important surface property of the fabric material. Even if the same weave and color of the fabrics, the different appearances could be exhibited when the fabrics are made from different materials. In this paper, we analyzed the different characteristics of pictures taken from real yarns made from different fibers (mainly cotton, bast, silk and wool), and extracted the brightness distribution properties of the pictures. For the yarn luster is highly dependent on the material, we used the method of Shepard interpolation to fit the brightness characteristics of the yarns, so as to set up the specific fitting function. Such fitting function was used to simulate the real texture of the yarn. At the same time, we use the factor of elliptic lighting model to revise the yarn brightness in the fabric. Experiment results show that the method deduced in this paper could exhibit the different appearances of the yarns, and obtain a relative real simulation of the fabric.

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Park, Myung-Soo. "The Physical Properties of Super Bulky Yarn According to Textured Condition." Journal of the Korean Society for Clothing Industry 12, no. 4 (August 30, 2010): 500–507. http://dx.doi.org/10.5805/ksci.2010.12.4.500.

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Stojanovic, Petar, Marija Savic, Dusan Trajkovic, Jovan Stepanovic, Miodrag Stamenkovic, and Mirjana Kostic. "The effect of false-twist texturing parameters on the structure and crimp properties of polyester yarn." Chemical Industry and Chemical Engineering Quarterly 23, no. 3 (2017): 411–19. http://dx.doi.org/10.2298/ciceq160720055s.

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In this paper, the effect of false-twist texturing parameters (texturing speed, heater temperature, draw ratio and disc-to-yarn speed ratio (D/Y ratio)) on the structure and crimp properties of polyester yarn has been studied using a high temperature heater and high texturing speeds. Textured yarn was analyzed and characterized in terms of the degree of crystallinity, degree of orientation and crimp properties (crimp contraction, crimp module and crimp stability). The most important parameters, significantly affecting yarn temperature and its uniformity and thus textured yarn structure and crimp properties, are texturing speed and heater temperature. Depending on these texturing parameters, the degree of crystallinity and orientation varied in the range of 24.48 to 36.66% and 0.371 to 0.595, respectively. The crimp characteristics increase with the increase in heater temperature, and decrease with the increase in texturing speed. The effect of draw ratio and D/Y ratio on the textured yarn structure and properties is less pronounced. Obtained results show that partially oriented polyester yarn used in this study can be textured at significantly higher texturing speed (up to 1100 m/min) than the standard texturing speed (up to 700 m/min) used for the yarn count examined.

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Ghiasi, Mostafa, Elham Naghashzargar, and Dariush Semnani. "Silk Fibroin Nano-Coated Textured Silk Yarn by Electrospinning Method for Tendon and Ligament Scaffold Application." Nano Hybrids 7 (August 2014): 35–51. http://dx.doi.org/10.4028/www.scientific.net/nh.7.35.

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In recent years, the use of combined nanofibers with textile structures for various applications such as tissue engineering has been highly regarded. Among the different methods, electrospinning mechanism is more important to produce polymeric nanofibers in extensive diameters that has been used to fabricate silk fibroin nanofibers in this research. On the basis of the statistical analysis and analytic hierarchy process optimization method, the optimum electrospinning parameters to produce good morphology of nanofibers and the best conditions of texturing process to fabricate suitable structure of textured silk yarn have been obtained, respectively. The following step to produce nanocoated textured yarn was defined as a nanocoating process on the surface of textured silk yarn. Finally, the morphological and mechanical properties of these samples including no-textured silk yarn, textured silk yarn and nanocoated textured silk yarn analyzed and compared. Based on the finding of this study, the nanocoated textured silk yarn was found to be a promising construct for engineered scaffolds in tendon and ligament tissue engineering.

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Park, Myung Soo. "The Mechanical Properties of Fluffy Spun-like Yarn by ATY Textured (1)." Textile Coloration and Finishing 25, no. 3 (September 27, 2013): 223–31. http://dx.doi.org/10.5764/tcf.2013.25.3.223.

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Galaska, Mary L., Larry D. Sqrow, J. Douglas Wolf, and Alexander B. Morgan. "Flammability Characteristics of Animal Fibers: Single Breed Wools, Alpaca/Wool, and Llama/Wool Blends." Fibers 7, no. 1 (January 3, 2019): 3. http://dx.doi.org/10.3390/fib7010003.

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Animal protein-based fibers used in textiles often are assumed to have uniform properties independent of source, and yet are different when considering texture, structure, and color. Differences between fibers from animal species have been studied in regard to general flammability behavior, but differences between fibers from breeds of the same species have not been studied. Fibers from two sheep breeds (Jacob, CVM/Romeldale) and two camelids (Alpaca, Llama) were studied for flammability effects on fabrics hand knit from yarns made from these different fibers. A total of five different yarns were studied: 100% Jacob, 100% CVM/Romeldale, 100% Alpaca, 50% Llama/Merino wool, and 50% Alpaca/Merino wool. Flammability was studied with cone calorimeter, microcombustion calorimeter, and vertical flame spread techniques. The results from this limited study demonstrate that there are differences between fibers from different breeds and differences between species, but the differences cannot be easily explained on the basis of inherent heat release or chemistry of the fiber. Sometimes yarn density and the tightness of the knit have more of an effect on self-extinguishment in vertical flame spread tests than does fiber heat release/chemistry. Pure Alpaca fiber, however, displays self-extinguishing behavior and low heat release when subjected to combustion conditions. This may be related to the amount of sulfur in its chemical structure, and its ability to be spun into a yarn which yields a tighter hand-knit density.

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Sasai, Tetsuyuki, and Sueo Kawabata. "Biaxial Tensile Properties of Textured Yarn Fabrics." Journal of the Textile Machinery Society of Japan 31, no. 2 (1985): 29–34. http://dx.doi.org/10.4188/jte1955.31.29.

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Journal articles on the topic 'Textured yarns properties'

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