scholarly journals Effects of Kevlar® 29 yarn twist on tensile and tribological properties of self-lubricating fabric liner

2016 ◽  
Vol 46 (8) ◽  
pp. 1698-1714 ◽  
Author(s):  
Jian Ma ◽  
Bingli Fan ◽  
Yujin Gao ◽  
Dapeng Gu ◽  
Xiaowen Qi ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Resin Composite ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Yarn Twist ◽  
Spun Yarn ◽  
Textile Technology ◽  
Twist Level ◽  
Twist Effect ◽  
Unexpected Findings

Yarn twist in textile technology is an important characteristic since it considerably affects the properties of knitted or woven fabrics. Many researchers have investigated the effect of staple-spun yarn twist on the properties of the yarns and fabrics. However, the effects of twist level of Kevlar® 29 filament yarn on the properties of yarn and its resin-impregnated self-lubricating fabric liner are not fully known yet. In this study, we have investigated the effects of Kevlar® 29 twist level on the tensile and tribological properties of the fabric liner (Kevlar® 29/polytetrafluoroethylene fabric-resin composite). Two unexpected findings about the effect of yarn twist have been observed, namely (1) asynchronous twist effect on the yarn’s and the liner’s tensile strength and (2) dissimilar yarn twist effect on the liner’s performance. These findings are mainly attributed to the synergic contributions of the yarn twist and strength and the interaction of the resin with the yarn orientation in the woven fabric structure of the liner.

scholarly journals EFFECT OF SPANDEX DENIER OF WEFT CORE SPUN YARN ON PROPERTIES OF FINISHED STRETCH WOVEN FABRIC

2020 ◽  
Vol 7 (7) ◽  
pp. 21-32
Author(s):  
Sunny Pannu ◽  
Meenakshi Ahirwar ◽  
Rishi Jamdigni ◽  
B. K. Behera
Keyword(s):  
Research Work ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
The Core ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Recovery Percentage ◽  
Shape Retention ◽  
Dual Core ◽  
Made In

The woven fabrics containing cotton/spandex core spun yarns possesses very vital properties of stretch, recovery and thus shape retention from the view point of wearing comfort and garment appearance. Spandex present in the core of core spun yarn is the most essential performer behind these properties. An attempt is made in this research work to study the influence of changing spandex denier in core spun yarn on the stretch and functional properties of stretch woven fabrics. The sole objective of this study is to find out whether different stretch, shrinkage and physical properties of stretch woven fabrics depend upon changing spandex percentage achieved by means of change in spandex filament denier. It was observed that by increasing denier of spandex in core spun weft yarns the increase in weft shrinkage diminishes. Dual core weft with spandex provides good elongation percentage and recovery percentage. The fabric with higher denier spandex in yarn shows a decreasing total hand values trend for summer and winter. The results depicts that the fabrics have higher THV for winter suiting fabrics as compared to summer suiting thus are more suitable for the winter wear.

Air and Ring Combination in Tandem Spinning

1997 ◽  
Vol 67 (3) ◽  
pp. 217-223 ◽  
Author(s):  
A. P. S. Sawhney ◽  
L. B. Kimmel
Keyword(s):  
Spindle Speed ◽  
Optimum Level ◽  
Ring Spinning ◽  
Air Jet ◽  
Yarn Twist ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Ring Spun Yarn ◽  
Twist Level ◽  
Air Nozzle

With the objective of boosting ring spinning productivity, a new tandem spinning system combining air-jet and ring spinning technologies in continuous tandem is investigated. In this “air-plus-ring” tandem spinning system, a drafted roving strand as it emerges from the front roller nip feeds into a single- or dual-jet air nozzle where it is subjected to a vortex of compressed air, producing a pneumatically entangled, false-twisted, partially strengthened strand. This so-called prefabricated, air-bolstered strand continuously feeds into a standard ring spinning zone and is ultimately spun into a novel, single-component yarn. By spinning a few cotton and cotton-blend yarns with the lowest practical twist levels possible on both the tandem and conventional ring spinning systems, we show that a tandem spun yarn can be produced with a relatively lower (true ring) twist level than a pure ring spun yarn. To an extent, the tandem spinning's air-bolstering action reinforces the drafted fibrous strand, contributing to yarn formation and hence character. Since ring spinning productivity is inversely proportional to yarn twist level, the relatively lower twist level required in tandem spinning allows a proportionately higher yarn production speed (in some cases, up to 50% faster than the conventional ring spinning), while maintaining spindle speed at the traditional, optimum level imposed by the limiting traveler speed. Tandem spun yarns, however, are somewhat different from, and generally weaker than, conventional ring spun yarns. This paper briefly describes a prototype of the new tandem spinning system developed on a laboratory Spintester, and shows spinning parameters and properties of a few yarns produced on both the tandem arid conventional ring spinning systems, each employing the traditional (maximum) optimum spindle speed of 10,000 rpm for a given 5.0 cm (2 inch) diameter ring.

Non-Fick effect of transient water transport in woven fabrics

2012 ◽  
Vol 82 (7) ◽  
pp. 637-644
Author(s):  
Mei-yu Chen ◽  
Kan Lai ◽  
Runjun Sun ◽  
Hui Wu ◽  
Bo Wang
Keyword(s):  
Water Transport ◽  
Liquid Water ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Transient Transport ◽  
Yarn Twist ◽  
Constant Rate ◽  
Mass Transfer Theory ◽  
Fiber Materials ◽  
Liquid Water Transport

This study investigated a new phenomenon of liquid water transport in woven fabrics by using a specially-designed liquid water transport detecting device. It was found that within 6 mm space from liquid water resource, transient transport of liquid water in a woven fabric appears to have non-Fick effect, that is, liquid water transport in a woven fabric processes obvious transient shock effect. After this transient period, water transport in the fabric follows the classical mass transfer theory, and tends to maintain a constant rate. The non-Fick effect of the water transport varied with fabric densities and yarn twists. In general, the lower the fabric density and the yarn twist are, the more obvious the non-Fick effect is. The non-Fick effect of transient transports of liquid water also behaved differently for fabrics made of different fiber materials.

Effects of weft count and weft density on the surface roughness of 3/1 (Z) twill woven fabric

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kura Alemayehu Beyene ◽  
Wassie Mengie ◽  
Chirato Godana Korra
Keyword(s):  
Surface Roughness ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Content Type ◽  
Yarn Diameter ◽  
Technical Textiles ◽  
Textile Technology ◽  
Two Factors ◽  
Technology Industries

Purpose The purpose of this study is to investigate the effects of weft yarn diameter and pick density on the properties of surface roughness (SMD) of 3/1 (Z) twill-woven fabrics in three measurement directions weft (0°), the warp (90°) and the diagonal (45°). Design/methodology/approach Nine 3/1 (Z) twill samples were prepared with two factors and three levels and their roughness values were measured in the weft (0°), warp (90°) and diagonal (45°) directions of 3/1 (Z) twill fabrics using the Kawabata-FB4 instrument. Analysis of variance (ANOVA) is used to determine the effect of weft yarn diameter and pick density on SMD properties and comparisons were done in the weft (0°), the warp (90°) and the diagonal (45°) directions. Findings From experimental analysis, weft yarn diameter and pick density affect SMD of 3/1 (Z) twill-woven fabrics in both diagonal (45°) and weft (0°) directions but slightly affect warp (90°) direction. Maximum SMD values were observed in diagonal (45°) directions and the minimum was in warp (90°) directions of fabrics. Weft yarn diameter and pick density are statistically significant on SMD values of 3/1 (Z) twill-woven fabrics for three directions at a 95% confidence interval. Parameter variation in weft directions of 3/1 (Z) twill-woven fabrics also varies SMD values in three directions measurements Originality/value The findings of this study can be usually used for textile technology, industries and laboratories to create a basic understanding for measuring roughness properties of 3/1 (Z) twill fabric. It is also possible to identify the surface characterizations in different directions of measurement for their usage in some specific areas of end application like consumer goods, home textiles, technical textiles, etc.

scholarly journals Investigation on Thermal Comfort Characteristics of Regenerated Bamboo and Cotton Woven Structured Fabrics

2018 ◽  
Vol 18 (4) ◽  
pp. 323-329 ◽  
Author(s):  
Zamir Ahmed Abro ◽  
Nanliang Chen ◽  
Zhang Yifan ◽  
Hong Cheng-Yu ◽  
Abdul Malik Rehan Abassi ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Research Work ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Spun Yarn ◽  
Key Factor ◽  
Ring Spun Yarn ◽  
Bamboo Fibers ◽  
Thermal Comfort Properties

Abstract In this research work, thermal properties of plain woven fabrics generated from regenerated bamboo and cotton fiber blended yarns were investigated. Seven mixtures of fiber (100% bamboo, 100% cotton, 10:90 bamboo: cotton, 20:80 bamboo: cotton, 30:70 bamboo: cotton, 40:60 bamboo: cotton and 50:50 bamboo: cotton) were developed to create 60 Tex ring spun yarn. The warp yarns were used as 100% regenerated bamboo and the bamboo: cotton blends were used alternatively in weft to produce plain woven fabrics. The plain structured woven fabrics show eminent thermal comfort properties with the blending of regenerated bamboo fibers. The air permeability of 100% regenerated bamboo fiber was recorded higher than the compared blends; the increased key factor contents of bamboo changed the air properties of the fabric. Furthermore, plain woven fabric of bamboo/cotton (50/50) has shown greater thermal conductivity and heat retention properties. The work reported in this paper is ensuring highpoints of thermal comfort properties of regenerated bamboo (100%) and cotton (100%) with plain woven structured fabrics, and potentially, the fabrics can be used for winter suiting apparel products.

scholarly journals Use of Extended Cover Factor Theory in UV Protection of Woven Fabric

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1188
Author(s):  
Klara Kostajnšek ◽  
Krste Dimitrovski
Keyword(s):  
Woven Fabrics ◽  
Uv Protection ◽  
Woven Fabric ◽  
Simplified Model ◽  
Light Penetration ◽  
Protective Properties ◽  
Cover Factor ◽  
Coefficient Of Reflection ◽  
Uv Protective Properties

The paper presents an extension of existed cover factor theory more suitable for the evaluation of light penetration through a net woven fabrics structure. It also introduces a new simplified model of predicting the ultraviolet (UV) protective properties of woven fabrics assuming that the coefficient of reflection (KR), transmission (KT), and absorption (KA) of constitutive yarns are known. Since usually they are not, the procedure of preparation of simulation of proper woven fabric samples without interlacing and with known constructional parameters is also presented. The procedure finishes with a fast and cheap detection of missed coefficient for any type of yarns. There are differences between theoretical and measured results, which are not particularly significant in regard to the purpose and demands of investigation.

Prediction of Permeability Tensor for Plain Woven Fabric by Using Control Volume Finite Element Method

2003 ◽  
Vol 11 (6) ◽  
pp. 465-476 ◽  
Author(s):  
Y. S. Song ◽  
K. Chung ◽  
T. J. Kang ◽  
J. R. Youn
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Control Volume ◽  
Three Dimensional ◽  
Woven Fabrics ◽  
Permeability Tensor ◽  
Woven Fabric ◽  
Stacking Order ◽  
Control Volume Finite Element ◽  
Element Method

The complete prediction of the second order permeability tensor for a three dimensional multi-axial preform is critical if we are to model and design the manufacturing process for composites by considering resin flow through a multi-axial fiber structure. In this study, the in-plane and transverse permeabilities for a woven fabric were predicted numerically by the coupled flow model, which combines microscopic and macroscopic flows. The microscopic and macroscopic flows were calculated by using 3-D CVFEM(control volume finite element method) for micro and macro unit cells. To avoid a checkerboard pressure field and improve the efficiency of numerical computation, a new interpolation function for velocity is proposed on the basis of analytical solutions. The permeability of a plain woven fabric was measured by means of an unidirectional flow experiment and compared with the permeability calculated numerically. Reverse and simple stacking of plain woven fabrics were taken into account and the relationship between the permeability and the structures of the preform such as the fiber volume fraction and stacking order is identified. Unlike other studies, the current study was based on a more realistic three dimensional unit cell. It was observed that in-plane flow is more dominant than transverse flow within the woven perform, and the effect of the stacking order of a multi-layered preform was negligible.

scholarly journals Wicking Behaviors of Ring and Compact-Siro Ring Spun Yarns with Different Twists

2019 ◽  
Vol 19 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Yuzheng Lu ◽  
Yang Wang ◽  
Weidong Gao
Keyword(s):  
Efficient Method ◽  
Capillary Rise ◽  
Fiber Material ◽  
Staple Fiber ◽  
Yarn Strength ◽  
Capillary Rise Method ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Twist Level ◽  
Yarn Structure

Abstract In this study, the wicking properties of ring and compact-siro ring spun staple yarns were compared. The twist level, which is related to the structure of the staple yarns, was found to significantly influence the wicking property of the two kinds of yarn. Polyester staple fibers with 1.33 dtex × 38 mm were selected as the staple fiber material, and the effect of the twist level on the wicking property was investigated using the capillary rise method. The results show that with a decreasing twist coefficient, the wicking height increases with a decrease in yarn compactness. The compact-siro spun yarn showed better wicking properties owing to it special ply yarn structure. Furthermore, the tension property of the yarns decreased significantly with a decrease in the twist coefficient. Compact-siro spinning was carried out to obtain staple yarns with lower twist coefficients, and the yarns showed great improvement in terms of yarn strength, fiber straightness, and wicking properties. Thus, compact-siro spinning is an efficient method to improve the wicking properties of staple yarns.

Manufacturing Process and Property Evaluation of Functional Composite Yarn-Dyed Woven Fabrics Made from Bamboo Charcoal/Stainless Steel and TPU

2008 ◽  
Vol 55-57 ◽  
pp. 413-416 ◽  
Author(s):  
C.I. Huang ◽  
C.I. Su ◽  
Ching Wen Lou ◽  
Wen Hao Hsing ◽  
Jia Horng Lin
Keyword(s):  
Stainless Steel ◽  
Manufacturing Process ◽  
Far Infrared ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Bamboo Charcoal ◽  
Functional Composite ◽  
Composite Yarn ◽  
Composite Fabrics

Recently, development of technology increases human life quality and gradually raises the value of health protection in human’s concept. Bamboo has multi-functional including far infrared radiation, deodorization and anion generation. Therefore, bamboo charcoal has been widely used in textile industry. Moreover, development of technology also increased the electromagnetic hazard in human’s daily life. This study aims to develop a manufacturing process of functional composite yarn-dyed woven fabrics. In the manufacturing process, the materials included pure cotton yarn, stainless steel fiber(called metallic yarn) and viscose rayon yarn containing bamboo charcoal (called bamboo charcoal yarn) were used for making the bamboo charcoal/stainless steel composite woven fabric. The composite woven fabrics were woven by using same warp yarn and two kinds of weft yarn that contained bamboo charcoal and stainless steel. The composite fabrics had two different structures. Those fabrics were changed the order of bamboo charcoal yarn and metallic yarn. The ratios of weft yarn were 1 end of bamboo charcoal yarn to 1 end of metallic yarn and 3 ends of bamboo charcoal yarn to 1 end of metallic yarn. Furthermore, the fabrication of composite fabrics that included plain, 2/2 twill and dobby were changed. The composite woven fabrics were finished and laminated by TPU film to enhance the waterproof and vapor permeable functions. The laminated composite fabrics were evaluated by far-infrared coefficient, anion generation rate, water vapor permeability, water resistance, surface electric resistance and electromagnetic shelter property to obtained optimal manufacturing process.

scholarly journals Application of Natural Dyes and Sodium Alginate From Sargassum Sp. Sea weed In Coloring Bima Woven Fabric

2020 ◽  
Vol 36 (05) ◽  
pp. 964-967
Author(s):  
Agrippina Wiraningtyan ◽  
Ruslan Ruslan ◽  
Putri Ayu Mutmainnah ◽  
Magfirah Perkasa
Keyword(s):  
Surface Structure ◽  
Sodium Alginate ◽  
Morphological Analysis ◽  
Woven Fabrics ◽  
Natural Dyes ◽  
Woven Fabric ◽  
Dyeing Process ◽  
Wave Numbers ◽  
Absorption Pattern ◽  
Before And After

This study aims to extract dye and alginate from seaweed Sargassum sp. as a dye paste in the coloring of Bima woven fabric. The concentration of sodium alginate used was 0%; 1%; 3% and 5%. The results showed that the absorbance value of the dye extract from seaweed Sargassum sp at maximum λ = 203 nm obtained A = 3.899. The effect of variations in the concentration of sodium alginate in the dye paste was determined by comparing the FTIR absorption pattern of Bima woven fabrics. Based on the FTIR absorption pattern data, it was found that a mixture of dye and sodium alginate of 3% had a stronger intensity, namely the wave numbers 3448.72 cm-1 and 1635 cm-1; 2900.94 cm-1; 2337.72 cm-1; 1381.03 cm-1 and 1064.71 cm-1. The results of the morphological analysis showed significant differences in surface structure on Bima woven fabrics before and after the dyeing process.

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