scholarly journals The influence of air-jet and vortex yarn on functionality of woven fabric

2018 ◽  
Vol 69 (02) ◽  
pp. 87-95 ◽  
Author(s):  
ŠAJN GORJANC ◽  
DOMINIKA GLAŽAR
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Woven Fabric ◽  
Weft Direction ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Vortex Yarn ◽  
Yarn Structure ◽  
Twill Weave

The basic intention of the research is to analyse the influence of air-jet and vortex yarn structure on woven fabric functionality. With the research, the air-jet and vortex yarn from the mixture of 65 % PES / 35 % CO fibres and fineness 20 tex were analysed. For comparison, the conventional ring-spun yarn was chosen from the mixture of 65 % PES/35 % CO fibres and fineness 20 tex. The woven fabric in the twill weave T1/3Z was produced from the air-jet, vortex and ring-spun yarn in the weft direction with two different weft densities (20 and 30 yarns per cm). In the first part of the study, the structure, physical and mechanical properties of the air-jet, vortex and ring-spun yarn were analysed, while in the second part of the research, the influence of used yarn in the weft direction on the functionality of woven fabric was studied. The research was focused mainly on physical, mechanical properties as well as permeability properties of woven fabric with air-jet and vortex yarn in the weft direction in comparison with woven fabric with conventional ring-spun yarn in the weft direction, with equal chemical composition and fineness of yarn. The research results was shown which yarn structure in the weft direction of woven fabric (air-jet or vortex) the most closely approximates the characteristics of the ring-spun yarn, which has because of ring-traveller-spindle mechanism ideal and the most even structure, mainly because of the insertion of the true twist.

scholarly journals The Effect Of Physical And Mechanical Properties Of Costume Fabrics On The Constitutive Structure Of Fibers

2021 ◽  
Vol 03 (04) ◽  
pp. 157-161
Author(s):  
Mirjamol Mirkarimovich Mirkhojaev ◽  
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Polyester Fiber ◽  
Weft Yarn ◽  
Modern Equipment ◽  
Weave Fabric ◽  
Twill Weave ◽  
Fiber Fabric ◽  
Woolen Fiber

For the study, samples of 2 variants of suiting fabrics were selected: a twill weave fabric with a woolen fiber base and a polyester fiber weft yarn, as well as a 100% woolen fiber fabric and physical and mechanical properties were determined using modern equipment.

Study on properties of decolorizing yakwool fiber and spun yarn

2019 ◽  
Vol 31 (1) ◽  
pp. 90-102
Author(s):  
Qin Xiaoxuan ◽  
Hui’e Liang ◽  
Xuzhong Su ◽  
Xinjin Liu
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Natural Fiber ◽  
Physical And Mechanical Properties ◽  
Optimal Process ◽  
Textile Processing ◽  
Content Type ◽  
Oxidation Reduction ◽  
Spun Yarn

Purpose As a natural fiber, yakwool has attracted much attention in textile processing due to its excellent properties and wearabilities. However, the main colors of yakwool are black and brown. Therefore, for extending the application scopes of the fiber, the decolorization of the yakwool fiber is usually needed, especially for the black fiber. The paper aims to discuss this issue. Design/methodology/approach In the paper, the properties of the yakwool fiber were tested first, especially the melanin granules in the fiber. Then, the decolorization of the yakwool fiber was studied using the oxidation–reduction decolorization method, and corresponding optimal process of the decolorization was given. Then, the properties of the decolorized yakwool fiber were tested and compared with those of the original fiber. Findings It is shown that, after decolorization, the physical and mechanical properties of the fiber were deteriorated, especially in terms of the strength and elongation. Therefore, the fiber became shorter and thinner, and the scales were damaged. When compared with the yarn spun from the original yakwool fiber, it was observed that the properties of the yarn spun from the decolorized yakwool fiber deteriorated because of the deterioration in the properties of the original fiber. Originality/value In the paper, for extending the application scopes of the yakwool fiber, the decolorization of the yakwool fiber was studied.

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

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.

scholarly journals A Study on the Twist Loss in Weft Yarn during Air Jet Weaving

2017 ◽  
Vol 12 (4) ◽  
pp. 155892501701200
Author(s):  
Muhammad Umair ◽  
Khubab Shaker ◽  
Yasir Nawab ◽  
Abher Rasheed ◽  
Sheraz Ahmad
Keyword(s):  
Woven Fabric ◽  
Weft Yarn ◽  
Air Jet ◽  
Yarn Twist ◽  
Spun Yarns ◽  
Cotton Yarns ◽  
Subsequent Effect ◽  
Fabric Production ◽  
Twill Weave

Air jet weaving is considered to be the most advanced method of fabric production in which weft yarn is inserted with air pressure. But due to very high pressure some of yarn twist is lost during fabric production. This affects the strength of the yarn in general and quality of the fabric in particular. This study deals with the parameters affecting twist loss in weft yarn during air jet weaving. The subsequent effect of twist loss on the mechanical properties of yarn as well as fabric is also studied. A total of twenty-four different fabric samples were produced to consider the effect of yarn linear density, material, weave design and fabric width on the twist loss in picking and receiving sides of the woven fabric. The 100% cotton and polyester-cotton (PC) ring spun yarns having linear densities 37, 27 and 15 tex were used to produce fabrics in two different weaves i.e. 1/1 plain and 3/1 twill weave. In addition, two different fabric widths i.e. 121 and 100 cm were produced. The twist loss increases with increase in the fineness of yarn. In PC yarns twist loss percentage was higher as compared to cotton yarns. Twist loss in wider width was higher as compared to smaller widths of the fabric, while the effect of weave design was negligible.

Fiber Configuration of Air Jet Vortex Spinning Yarns

2013 ◽  
Vol 834-836 ◽  
pp. 1784-1788
Author(s):  
Ya Hong Zhong ◽  
Jian Hui Ma ◽  
Ming Jie Xing
Keyword(s):  
Outer Layer ◽  
Optical Microscope ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Twisted Fiber

In this paper, the spinning process of air jet vortex spinning was described. The structure of air jet vortex spun yarn was studied by means of blending tracer fibers in spinning. Then the yarns were viewed with the optical microscope and SEM etc. The result shows that air jet vortex spun yarn comprises two parts. The outer layer, composed of twisted fibers, presents helical form. And the inner layer contains about 30% fibers untwisted or slackly twisted. The distance between twisted fiber groups is very short, so the borderline isnt obvious. There is a certain angle between core fibers in parallel and the axes of the yarn. The coefficient of fiber migration of the yarn was calculated, and it is lower than that of ring spun yarn and compact spun yarn.

scholarly journals Effect of yarn structure on cover factor in woven fabrics

2018 ◽  
Vol 69 (03) ◽  
pp. 197-201 ◽  
Author(s):  
AHMAD ZUHAIB ◽  
ELDEEB MOAZ ◽  
IQBAL SHOAI ◽  
MAZARI ADNAN AHMED
Keyword(s):  
Packing Density ◽  
Light Transmission ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Warp Yarn ◽  
Cover Factor ◽  
Air Jet ◽  
Yarn Diameter ◽  
Yarn Structure ◽  
Rotor Yarn

This experimental work investigates the effect of yarn structure on cover factor of fabrics at different weft settings by the light transmission method. To analyze the effect, two different types of fabric set have been prepared by using airjet and rotor yarns of the same linear densities in the weft direction and keeping the warp yarn unchanged. For each fabric, weft setting has been changed gradually. Cross-sectional diameter of yarn and its packing density has been analyzed to find out the differences between both yarn structures. The effective yarn diameter and packing density have been found to be almost same for both yarns while the hairiness is found to be higher in airjet yarn as compared to rotor yarn. Yarn cross-section in the fabric has also been analyzed to examine the deformation (flatness) in yarn, which was relatively higher in airjet yarns. At the same weft setting the cover factor (CF) of fabric woven by air jet yarn is found to be higher than fabric woven by rotor jet yarn, and this difference decreases as the weft setting increases in fabric. Correlation analysis results show the relation between the cover factor and weft setting. While analysis of variance results show statistically significant effect of spinning system (airjet and rotor yarn) and weft setting on the cover factor of woven fabric.

Prediction of Certain Low Stress Mechanical Properties of Knitted Fabrics from Their Structural Parameters

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000
Author(s):  
R. Varadaraju ◽  
J. Srinivasan
Keyword(s):  
Mechanical Properties ◽  
Structural Parameters ◽  
Tensile Elongation ◽  
Shear Rigidity ◽  
Bending Rigidity ◽  
Knitted Fabrics ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Low Stress Mechanical Properties ◽  
Fabric Shear

Knitted fabrics are preferred as clothing materials because of of their outstanding comfort quality. 16 plain knitted fabric samples were produced from 4 combed ring spun yarn of linear densities 29.5 Tex, 23.6, Tex 19.7 Tex and 17.4 Tex and 4 different stitch lengths from each yarn linear density were selected for this study. The fabric samples were relaxed and then tested for tensile shear and bending properties using Kawabata tester's. KES- FB1and KES- FB2. The effect of various fabric structural parameters on fabric low stress mechanical properties was studied. The fabric shear rigidity, bending rigidity, shear hysteresis, bending hysteresis, and tensile linearity were positively correlated with the fabric GSM, thickness, and tightness factor and negatively correlated with fabric linear Stitch modulus, areal stitch modulus, volume stitch modulus, and porosity. The fabric tensile elongation was positively correlated with the fabric linear stitch modulus, areal stitch modulus, volume Stitch modulus, and porosity and negatively correlated with the fabric GSM, thickness, and fabric tightness factor. The above properties were higher in course direction than in wale direction. Separate prediction equations were developed for fabric low stress mechanical properties from Tightness factor, Volume Stitch modulus, and Porosity

scholarly journals Bicomponent Carbon Fibre within Woven Fabric for Protective Clothing

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2824
Author(s):  
Stana Kovačević ◽  
Snježana Brnada ◽  
Ivana Schwarz ◽  
Ana Kiš
Keyword(s):  
Mechanical Properties ◽  
Cross Sections ◽  
Physical And Mechanical Properties ◽  
Fibre Surface ◽  
Lower Surface ◽  
Cyclic Stress ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Back Side ◽  
Cyclic Stresses

For the purpose of this research, six types of woven fabrics with different proportions of bicomponent carbon fibres (CF), differently distributed in the fabric, were woven and tested. Fibre composition in the core and sheath was determined with X-ray spectroscopy (EDS). Two types of bicomponent CF were selected which are characterised by different proportions of carbon and other polymers in the fibre core and sheath and different cross-sections of the fibres formed during chemical spinning. Physical-mechanical properties were investigated, as well as deformations of fabrics after 10,000, 20,000 and 30,000 cycles under biaxial cyclic stress on a patented device. Tests of the surface and vertical electrostatic resistance from fabric front to back side and from the back side to the fabric front were conducted. According to the obtained results and statistical analyses, it was concluded that the proportion of CF affects the fabric’s physical and mechanical properties, the electrostatic resistance as well as the deformations caused by biaxial cyclic stresses. A higher proportion of CF in the fabric and a higher proportion of carbon on the fibre surface, gave lower electrostatic resistance, i.e., better conductivity, especially when CFs are woven in the warp and weft direction. The higher presence of CF on the front of the fabric, as a consequence of the weave, resulted in a lower surface electrostatic resistance.

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