Search results

The paper aims to build a finite element simulation model for pilling of polyester hairiness on the fabric to study the effects of hairiness performance on pilling and reveal pilling mechanisms.

The finite element simulation model of pilling of polyester hairiness was established by ABAQUS. Polyester hairiness was treated as elastic thin rod, which was divided by two-node linear three-dimensional truss element. The effects of hairiness elastic modulus, hairiness friction coefficient and hairiness diameter on frictional dissipation energy, strain energy and kinetic energy produced by pilling have been studied. The analysis solution values were compared with the finite element simulation results, which was used to verify finite element simulation.

The paper provides new insights about how to reveal pilling mechanisms of polyester hairiness with different performance. Comparing finite element simulation results with analysis solutions shows that the fitness is greater than 0.96, which verifies finite element simulation. Larger hairiness elastic modulus gives rise to higher friction dissipation energy and strain energy of hairiness but lower kinetic energy. Increasing friction coefficient enhances friction dissipation and strain energy of hairiness. However, kinetic energy decreases with the increase of friction coefficient. Hairiness diameter also has an important effect on hairiness entanglement and pilling. Increasing hairiness diameter can decrease friction dissipation energy but enhance strain energy and kinetic energy.

Finite element simulation was verified by analysis solutions. The solutions include friction dissipation energy, strain energy and kinetic energy, which cannot measured b experiment. Therefore, researchers are encouraged to simulate pilling to obtain pilling grades, which be compared with experiment results.

Pilling of polyester hairiness was simulated by ABAQUS. This method makes pilling process visualization, and pilling mechanisms was revealed from non-linear dynamics.

An approach to measurement of fabric hairiness based on image processing is developed and demonstrated in the present study. The total system consists of two components: i) a mechanical setup for image grabbing; and ii) analysis software for measurement of hairiness values based on suitable algorithms using MATLAB software. The software is able to detect the best estimated edge of fabrics and subsequently the fabric hairiness values are calculated precisely. A series of polyester-viscose blended fabrics with varying blend ratios are selected for the study. The fabrics were selected in such a way that all other parameters were the same except blend ratios. The fabrics were subject to different abrasion cycles and their hairiness values were then measured. With an increase in abrasion cycling, the average length of hairs increases and a similar trend is observed for all blended fabrics except the 100% viscose fabric. With an increase in viscose content in polyester-viscose blended fabrics, the hairiness value increases generally.

Microfiber is one of the major sources of microplastic emission into the environment. In recent times, research on microfiber has gained momentum, and research across different disciplines was performed. However, no complete study was performed from the viewpoint of textiles to analyse the microfiber shedding behaviour by relating the properties textiles. The purpose of this paper is to analyse the microfiber shedding behaviour in textiles.

Articles on the microfiber shedding across different disciplines were collected and analysed systematically to identify the influencing factor. The influence of laundry parameters is found to be majorly discussed section, yet very few research data is found on the effect of yarn and fabric properties on the microfiber shedding.

Most of the articles listed laundry detergent addition, higher temperature, use of softeners, type of washing machines used and amount of liquid used as the major factors influencing the fiber shedding. Concerning the fiber and yarn characteristics, yarn twist, fiber type (staple/filament), method of production, fabric structure and specific density are reported as influencing factors. Some articles highlighted the influence of ageing of textiles on the fiber shedding.

The review identified the research gap in the textile sector and reports that so far, no research performed on microfiber shedding with the textile parameters. The review further urges the importance of research works to be performed in the textile by considering the fabric and yarn properties.

Synthetic fibres are more susceptible to thermal damage and have to be processed at lower spindle speeds than cotton on ring spinning machines. Blends of polyester-cotton were spun using ring spinning machine at various spindle speeds. Analysis of the properties of the yarns and the fibres in the yarn revealed that spinning fibre blends with a high polyester content at higher spindle speeds resulted in weaker yarns. Thermal damage of the polyester fibre in the yarn could be seen from SEM photographs. Blending polyester with cotton significantly reduced the risk of thermal damage to the polyester fibre. Yarn hairiness decreased with the increase of spindle speed, but this reduction could not be attributed to fibre thermal damage alone.

The paper aims to provide an investigation about the effect of some selected production parameters such as core yarn type, sheath sliver type and total yarn count factors on core spun vortex yarns' evenness, imperfection and tensile properties. Hence it is aimed to contribute to the literature in vortex spinning where there are limited works related to core-spun vortex spinning.

The paper evaluates the effect of core yarn type, sheath sliver type and total yarn count factors on yarn evenness, imperfections, hairiness and tensile properties. Completely randomised three-factor analysis of variance (ANOVA) was conducted in order to evaluate the effect of core yarn type, sheath sliver type and linear yarn density on core spun vortex yarns' evenness, imperfection and tensile properties at significance level of 0.05. SNK tests were also performed for observing the means of each parameter. Correlation analysis was also conducted to reveal some relationships between yarn evenness and yarn tensile properties.

In this paper, significant factors related to some production parameters affecting the core-spun vortex yarns' evenness, imperfection, hairiness and tensile properties were found.

There are limited works related to effect of selected production parameters on yarn evenness, Imperfections and Tensile Properties of Hybrid Vortex Yarns.

Sewing thread plays an important role in transforming a two-dimensional fabric into three-dimensional garment. Over the years, ring spinning has been dominating the yarn market because of its consistent performance. Eli-Twist spinning system, a new method of yarn manufacture, provides a product with improved mechanical and physical properties than the conventional ring-spun yarn. It is the process of producing a two-ply compact yarn with improved fibre utilisation. The purpose of this paper is to assess the feasibility of using Eli-Twist yarn as a sewing thread and to compare its performance with conventional thread.

In this study, regular polyester and Indian cotton were used to produce the Eli-Twist and conventional TFO thread. Three different blends (100 per cent polyester, 50/50 polyester/cotton [P/C] and 100 per cent cotton) were taken to produce three different counts (39.4 tex, 29.5 tex and 23.6 tex) from each composition. The hairiness, tenacity, breaking elongation and coefficient of yarn-to-metal friction of threads were tested and a comparative analysis was made. The seam performance of all the threads was judged by seam strength, seam efficiency and seam elongation.

The results show that the mass irregularity and imperfections are more or less similar for both types of threads. Eli-Twist sewing thread has shown less friction, less hairiness and higher tensile strength. The Eli-Twist sewing thread was found to be better than the conventional two-ply sewing thread. The seam performance parameters, such as seam strength, seam efficiency and seam elongation of the Eli-Twist thread showed significantly improved performance.

The main concern of this study is delineating the performance of the Eli-Twist sewing thread. No study in this regard has been reported so far. The improved physical and mechanical behaviour of the Eli-Twist yarn has prompted to assess its performance as sewing thread.

In recent times, the usage of elastane-containing denim garments has increased, as it provides fit and comfort both at the same time. The purpose of the study is to understand the effect of abrasion on the durability of comfort related to body movement and shape retention property of the stretch-denim fabric.

The paper investigates the effect of abrasion on the initial tensile properties, recovery and resilience properties of the stretch-denim fabric. Further, to analyse the effect of the composition of the elastane yarn, three different types of elastane yarns having different types of sheath (covering) fibre, structure and different levels of elastane content have been used in the weft.

The comfort related to body movement and the shape retention properties of the stretch-denim fabric got affected due to abrasive damage. The elastane yarn composition and structure played an important role in determining the extent of the change in such properties during abrasion. The fabric with a higher level of elastane content suffered a greater loss in shape-retention properties due to abrasion. The extent of mass loss in stretch-denim fabric does not always correlate to the extent of loss in the comfort and shape-retention properties.

Most of the earlier studies have investigated the effect of abrasion on the durability aspect of the stretch-denim fabric. In a practical scenario, the stretch-denim garments are rarely discarded due to tearing or change in appearance but mainly due to bagging, i.e. distortion in shape after usage. Thus, the study on the combined effect of the abrasion and cyclic loading on the comfort and shape-retention properties will help to predict the performance of the apparel during usage.

Examines the tenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

In recent times, stretch denim garments have become very popular amongst consumers as the garment is able to provide body fit and body comfort at the same time. The purpose of this study is to investigate the effect of abrasion on the change in surface appearance, mass loss and ultimate tensile properties of the stretch denim fabric in different directions (warp, weft and biased).

After abrading the fabrics in three different directions (warp, weft and biased), the loss in ultimate tensile properties, mass loss and surface appearance has been investigated in the respective directions of abrasion (warp, weft and biased). The study also encompasses the effect of different types of stretch yarn with varying levels of elastane content on such unidirectional abrasive damage.

It is seen that with the same level of abrasion cycles, the fabric's response in terms of mass loss and loss in ultimate tensile properties are different in different directions. The mass loss due to abrasion in biased direction is found to be minimum. The loss in ultimate tensile properties due to abrasion was highest in the weft direction. It is also found that the higher mass loss due to abrasion does not always result in a greater loss in ultimate tensile properties. The composition and the structure of the weft yarn significantly affected the extent of the mass loss and the loss in ultimate tensile properties during abrasive damage.

The impact of abrasive damage in terms of mass loss and loss in tensile strength along the different directions of denim fabric has not been explored till date. Abrasion of fabric can be done both in multi-direction (Lissajous motion) as well as in uni-direction (linear motion). The multidirectional abrasion provides a holistic or comprehensive idea of the fabric's response to the abrasive damage but does not take into consideration the fabric's anisotropic response to the abrasive damage. Most of the earlier investigation related to abrasive damage of denim fabric has been done in instruments where the motion of the abrader is multidirectional (Lissajous) in nature. For greater depth of understanding about the fabric performance under abrasive damage along the various direction (warp, weft and biased), unidirectional abrasion is conducted in this study.

Fabric fuzziness is a property which affects the appearance, handle, thermal insulation and other fabric features; it also leads to pilling that is a serious problem for the apparel industry. Fuzz on fabric surface has been measured mostly by subjective methods (human vision) rather than objective methods. In this study, an objective method using image analysis techniques is developed for the measurement of fuzz on fabric surface. The effects of fibers blend ratio and abrasion on fabric fuzziness are evaluated. For this purpose, several blended plain fabrics including polyester/viscose fibers with different blend ratios were produced and abraded under various cycles of traversing abrasion. Yarn hairiness was also measured using an Uster tester 4 apparatus before weaving. High correlation between Uster 4 data and the results obtained from the fuzz measurement of fabrics demonstrates that this method has high accuracy and great potential for the determination of fabric fuzziness levels in a quantitative and reliable manner.