Polyester Staple Research Articles

Measurement of effectiveness spinning fiber machines using total productive maintenance method at textile manufacturing

PT XYZ is a textile industry manufacturing company whose main products are Polymer Chips, Pre-Oriented Yarn (POY), Draw Twister Yarn (DTY), Bi Shrankage Yarn (BSY), and Polyester Staple Fiber (PSF) which are marketed domestically and internationally. There are still high breakdown problems, which can hamper the production process and result in a decrease in production capacity. The purpose of this study was to measure the Performance Effectiveness of Fiber Spinning Machines using the Total Productive Maintenance (TPM) Method and to find the causes of the Six Big Losses that affect the Performance Effectiveness of Fiber Spinning Machines. The application of TPM in the manufacturing industry aims to extend machine life and maximize the effectiveness of machine performance. The results of measuring the Performance Effectiveness of Fiber Spinning Machines using the TPM Method obtained an Overall Equipment Effectiveness (OEE) value of 87.85% and the cause of Six Big Losses that affect the effectiveness of the performance of Fiber Spinning Machines is Equipment Failure Losses, the most dominant factor is the Human Factor, namely lack of control, lack of understanding of Standard Operational Procedure (SOP), lack of thoroughness when cleaning spinnerets.

Microwave irradiated polyester staple fibers for natural rubber with excellent interface performance

Microwave irradiated polyester staple fibers for natural rubber with excellent interface performance

Scope, Opportunity and challenges of Polyester Staple Fiber (PSF) Production in Bangladesh

Polyester Staple Fiber (PSF) is an important synthetic textile fiber used in various industries, including apparel, home furnishings, and industrial textiles. Bangladesh, a developing country with a growing textile industry, has the potential to become a major producer of PSF. This journal manuscript presents an in-depth analysis of the scope, opportunities, and challenges of PSF production in Bangladesh. The scope of PSF production in Bangladesh is vast due to the country's low labor costs and availability of raw materials. Additionally, the government's support for the textile industry through incentives and infrastructure development provides further opportunities for PSF production. However, there are several challenges that need to be addressed, including the high cost of importing machinery and technology, the lack of skilled labor and technical expertise, and the need for investment in research and development. Moreover, environmental concerns related to the production process, such as waste management and energy efficiency, need to be addressed for sustainable development of the PSF industry in Bangladesh. The manuscript presents an overview of the current state of the PSF industry in Bangladesh, including production processes, raw materials, and export markets, as well as an analysis of the industry's strengths, weaknesses, opportunities, and threats. Overall, the manuscript highlights the potential of the PSF industry in Bangladesh for growth and development, provided the challenges are addressed and a strategic approach to the industry's development is taken. The manuscript concludes with recommendations for policymakers, investors, and industry players to promote sustainable and inclusive growth of the PSF industry in Bangladesh.

Investigation of ring, airjet and rotor spun yarn structures on the fragmented fibers (microplastics) released from polyester textiles during laundering.

The release of fragmented fibers (FFs), including microplastics from textiles, during their service life is considered an established source of environmental pollution. The yarn structure is identified to affect the amount and length distribution profile of shed FFs from textiles. In the present work, the impact of yarn structures spun from 100% polyester staple fibers, using commercially relevant spun yarn technologies in the textile industry, on the release of FFs from textiles is studied. The bespoke woven fabric samples produced from three types of spun yarns, which include ring, airjet (air vortex) and rotor yarns, were subjected to an accelerated washing process, for up to five washes, to quantify shed FFs and their length distribution profile. The morphological shapes of FF ends associated with the nature of fiber damage were also investigated. The results demonstrated that airjet and rotor yarn structures had released 28% and 33% less mass of FFs, respectively, as compared to the ring yarn structure during the whole washing process. The length distribution profile identified that the ring yarn structure shed longer length FFs as compared to both airjet and rotor ones. The damaged ends highlight the importance of textile manufacturing processes on the generation of FFs. The results of this study give a better understanding of the yarn structural effect of commercially relevant technologies on shedding of FFs, which are released as a pollutant to the environment.

Anti-Dumping Committee’s Strategy to Confront Dumping Practices: Indonesian Law and International Law Perspective

This study investigates the Indonesian Anti-Dumping Committee's role and legal efforts in addressing dumping practices within the context of Indonesia's membership in the World Trade Organization (WTO) and adherence to the General Agreement on Tariffs and Trade (GATT). Previous research has demonstrated the existence of dumping in imported polyester staple fiber products, leading to the committee's proposal of anti-dumping duties. The committee is responsible for receiving reports on alleged dumping and producing final reports. Despite these efforts, the study reveals an ongoing increase in dumping cases, causing significant social, psychological, and economic consequences for the country. The current institution dealing with dumping practices is considered inefficient and ineffective. To gain a comprehensive understanding of the issue, the research employs a sociolegal research method with a disciplinary approach, acknowledging that relying solely on normative law is insufficient to address dumping practices. In conclusion, this study aims to shed light on the Indonesian Anti-Dumping Committee's role and its legal framework in countering dumping practices. The rising dumping cases and the perceived inefficiency of the existing institution are worrisome. By utilizing a sociolegal research method with a disciplinary approach, the study strives to offer a holistic understanding and potentially contribute to more effective solutions in combating dumping practices.

Analisis Daya Serap Suara Material Berbasis Polyester Staple Fibre Untuk Karpet Lantai Kendaraan

This research studies about the ability of the acoustic properties or absorption of the vehicle floor carpet material which consists of several forming components, with an experimental method using the tube impedance method. The components of this car floor carpet material consist of a skin section which includes a surface made of polyester staple fiber plastic fiber, binders made of latex SBR material, backing made of Polyethylene (PE) powder and the under layer made of Polyester Fiber material (PET) Silencer. The carpet material for the vehicle floor was made into three samples to determine the average of sound absorption coefficient. The sound absorption coefficient was obtained from testing the flat test sample using the ASTM E1050-98 tube impedance method. The use of Polyethylene (PE) powder as a backing for floor mats has a sound absorption coefficient with a rating of B (above 0.8) at a frequency of 3,000 Hz. While the sound absorption coefficient reaches the highest point of 0.99 at a frequency of 3,000 Hz. This is because the backing with Polyethylene (PE) powder material has porous holes. The micro surface is used as a layer of air space so that it can effectively reduce and increase the absorption of sound that occurs inside the vehicle when driving. The sound absorption coefficient of vehicle floor carpet increases significantly at low frequencies and slightly decreases at high frequencies

THE ANALYSIS OF ANTIDUMPING DUTIES IMPOSION AGAINST POLYESTER STAPLE FIBER COMMODITIES IMPORT VALUE

Dumping practices can damage the domestic product market because they are imported at lower prices. Indonesia has imposed antidumping measures on Polyester Staple Fiber (PSF) commodities since 2010 until now. This study aims to analyze the impact of long-term and short-term antidumping duties (BMAD) imposition on the import value of PSF commodities in Indonesia. This study was conducted using quantitative analysis methods with multiple linear regression testing model Error Correction Model (ECM). Based on the results of quantitative testing, in the long term the variable partially has a positive and significant effect on the import value of PSF commodities. Meanwhile, in the short term, BMAD variable partially has no effect on the value of PSF commodity imports from the target country. This shows that the imposition of antidumping duties does not directly have a restrictive effect on the import value of PSF commodities.

LINER PAPER WITH HIGH AIR PERMEABILITY, HIGH WET STRENGTH, ANTI-MILDEW AND ANTIBACTERIAL PROPERTIES FOR LIQUID CRYSTAL GLASS

In this paper, we report a method for the preparation of liner paper applied on liquid crystal glass. It was obtained by wet forming of hardwood fiber and a laboratory-made hydrophilic dispersible polyester staple fiber in a certain proportion. The laboratory-made hydrophilic dispersible polyester staple fiber was obtained by co-deposition of gallic acid and ethylenediamine on PET fiber. Some additives were used in the papermaking process, including wet strength agent polyamide epichlorohydrin (PAE), anti-mildew and antibacterial agent polyhexamethylene biguanide (PHMB), and pH adjuster boric acid (H3BO3). Results showed that the liner paper has high air permeability (~35.99 μm.(Pa∙s)-1), good wet strength (~0.720 kN.m-1) and excellent anti-mildew and antibacterial properties. Interestingly, the pore size of the modified PET fiber paper increased between 23% and 29% within the same pore size range compared with PET fiber paper. This provides a theoretical basis for the relationship between paper pore size and air permeability.

Acoustic behaviour of needle punched nonwoven structures produced from various natural and synthetic fibers

Porous materials are an excellent example of passive materials, which reduces sound energy by dissipating heat energy due to the presence of a void structure. In textiles, nonwovens are highly porous and less expensive materials compared to woven and knitted structures. The present research investigates the effect of fiber type, fiber fineness, fiber cross-sectional shape, and fabric areal density on the acoustic properties of needle punched nonwoven fabrics produced from flax comber noil and jute caddies and polyester staple fibers of circular, hollow, and hollow conjugated cross-sections. The study reveals that hollow conjugated cross section exhibits maximum noise absorption. Nonwoven made from biodegradable and recyclable jute caddies, and flax comber noil shows considerable noise absorption properties compared to polyester synthetic fiber, although they are inexpensive. Higher punch density results in better compactness of nonwoven fabric leading to improved sound absorption property. Layered nonwoven structures are responsible for better sound absorption properties due to the presence of an air layer.

A Novel Concept to Produce Submicron-Cotton/Polyester Composite Core-Spun Yarn via Modified Apparatus

ABSTRACT In recent years, due to the special structure and performance, more and more techniques and methods were developed for preparing core-spun yarn. In this article, the submicron-cotton/polyester composite core-spun yarn is produced on conventional ring spinning, in which the polyester staple fibers as core and the sheath were submicron-cotton (Sm-C) fibers, the Sm-C sliver produced by carding machine equipped with a dish-shaped electrospinning device and the core-spun polyester roving covered Sm-C sliver was produced by the roving frame with the modified bell mouth. Three different ratios of submicron-cotton/polyester roving were spun based on the prepared Sm-C sliver, which shows roving formed a core-sheath structure. The coverage rate reaches 100%. The 85Sm-C/15T performance shows that the weight CV (1.0%) and evenness CV (5.0%), then use it to prepare three kinds of spun yarns with 800TPM, 900TPM, and1000TPM, when the twist was increased the structure of the yarn becomes more compact, the long-staple cotton fibers and submicron fibers were intermingled and entangled with each other, and the strength of 900TPM increases by 18.79% compared with 800TPM, the evenness CV decreases by 2.22%, compared with 900TPM, the 1000TPM elongation breaking decreased 9.33%. Consequently, the modified spinning methodology improved the coverage rate, structure, and mechanical properties of submicron-cotton/polyester composite core-spun yarn.

Spinning Performance of Egyptain Cotton/ Polyester blends.(Dept.T)

Two types of Egyptian cotton, Giza 69 and Ashmouni, were blended with polyester staple fibre, Tetoron, at different blend ratios to produce yam counts 30, 50 and Ne 60 at five levels of twist multiplier. An experimental investigation Was undertaken to display the blending characteristics of Egyptian cotton/polyester blends. The effect of blend levels on optimum twist multiplier, strength characteristics, critical blend proportion and the other qualities of these yarns is analyzed.

Moisture Management Properties of Bi-Layer Knitted Fabrics

For investigation of the moisture management properties of bi-layer knitted fabrics, a special knitting structure made of the same or different combinations of yarns of cotton, polypropylene, Microdenier polyester and polyester staple fibre on the face and reverse sides fibre was studied. Moisture management properties, which determine the warm-cool feeling, of the fabrics produced were determined and statistical analysis made. The results indicated that the Microdenier polyester (inner) – Microdenier polyester (outer) fabric had a better moisture management property, providing high levels of comfort, and is recommended for summer, active and sportswear. The results were discussed together with one-way ANOVA test results at a 0.05 significance level. The results indicate that the Microdenier polyester yarn inner and outer layer of bi-layer knitted fabric shows a better moisture management property due to its appreciable wetting radius, as well its good absorption rate, wetting time and spreading speed of sweat, thus exhibiting a very higher level of the comfort property.

Thermal Comfort Properties of Bi-Layer Knitted Fabrics

Transmission of sensible and insensible perspiration is an important factor for fabric comfort. Improvement in the thermal comfort properties of knitted fabrics results in the achievement of fabric comfort. In this research, the thermal comfort properties of six bi-layer knitted fabrics were studied. The bi-layer knitted fabrics were made with different combinations of yarn in the inner layer and outer layer. The yarn combinations selected were polyester staple yarn-polyester staple yarn, polyester staple yarn-cotton, cotton-cotton, polypropylene-cotton, micro denier polyester-cotton, and micro denier polyester- micro denier polyester for the inner and outer layers, respectively. To find the thermal comfort properties of the six bi-layer knitted fabrics, an objective fabric test was carried out. The results showed that the bi-layer fabrics made from micro denier polyester, both in the inner and outer layers, exhibit better thermal comfort properties, thereby providing a higher level of comfort; hence, they are preferred for active sportswear. The water vapour permeability, air permeability, thermal resistance and thermal conductivity of the bi-layer knitted fabric made up of micro denier polyester as the outer and inner layer were found to be higher when compared to the other bi-layer structures. The results were discussed together with one – way ANOVA test results at a 0.05 significance level.

Simulation and analysis of the twist propagation process of polyester staple yarn on the fiber scale

The twisting process of the sliver is an important part of the yarn spinning process, but this process has not been fully characterized on the fiber scale. Herein, based on the assumption that fibers are randomly distributed in the sliver, we analyzed the simulation twisting process of the sliver model on the fiber scale. The mathematical model of the twisting process of the sliver is set up and the non-free-end twisting process is simulated using the finite element software ABAQUS®. The simulation process clearly shows the configuration changes of the sliver caused with the increase of the twist. We also divided the twisting process into 11 stages and obtained a three-dimensional model of staple yarn. Then, the relationship curve between the ring-spun yarn fineness and the number of fibers in the cross-section of the ring-spun yarn was established by spinning the yarns of different counts of 20, 25, 30, 35, 40, 45, 50, 55, 60 and 65 Ne, and the fineness of the simulated yarn was calculated. The accuracy of the simulated yarn was verified by comparing the weight of the simulated yarn and the ring-spun yarn. The model established can be used to predict yarn properties for different purposes and can also be further utilized to study other phenomena in ring-spinning technology.

Impact resistance of fiber reinforced sandwich-structured nonwoven composites: Reinforcing effect of different fiber length

Apart from the main function of stab resistance, personal protective equipment is required to be comfortable, flexible, and light weighted and as such to prevent soldiers and police officers from the danger caused by a long-term use and accidents. The stab resistance is dependent on the structure formed of different materials and processes majorly, and therefore this study proposes sandwich-structured composites using high-strength polyester staple fibers (S-type) and high strength polyester filaments (F-type) that have differing characteristics by means of the nonwoven process. First, recycled Kevlar® fibers, nylon fibers, and low-melting-point polyester fibers are processed, thereby forming the surface and bottom layers. In addition, the needle punching process and heat treatment are performed with the aim of combining high strength polyester filaments or staple fibers as the interlayer. Next, the differences in the fiber structure and damage modes of sandwich composites are examined in terms of the interlayer type (i.e. S- and F-type) by conducting the quasi-static stab resistance testing and SEM/FE-SEM observations, respectively. The test results indicate that the S-type sandwich composites outperform the F-type sandwich composites in terms of absorbing the puncture, and the stab resistance is 415 N for S 30013 group. However, the S-type sandwich composites have the potential to develop personal protective equipment by virtue of a light weight and being comfortable provided by filaments.

Configuration of a unique antibacterial needle-punched nonwoven fabric from silver impregnated polyester nanocomposite fibres

The current study aims to mitigate the problems arising due to leach-out of silver nanoparticles (Ag-NPs) from an antibacterial material developed using silver coating or finishes. Polyester (PET) staple fibres with Ag-NPs firmly integrated within them were used to prepare needle-punched nonwoven fabric. To further enhance the antibacterial efficiency, the nonwoven surface was etched via alkaline hydrolysis such that the Ag-NPs are exposed to the bacterial cell wall. The antibacterial activity of the nonwoven made of PET-Ag-NPs nanocomposite fibres (P/Ag-NFs) against S. aureus and E. coli bacteria was found to be increased after hydrolysis by 4.5% and 6.5%, respectively. The amount of silver leach-out from the developed antibacterial media was 0.01 ppm for 24 h immersion time, which is in compliance with regulations of National Institute for Occupational Safety and Health (0.01 mg/m3), as well as that of WHO (0.1 ppm). Moreover, the nonwoven was effective in killing up to 94% and 98% S. aureus and E. coli bacteria, respectively. Hence, the developed nonwoven fabric can safely be used for medical and health care textiles, antibacterial clothing and for the development of dry/wet filtration media.

Electrical resistive heating characterization of conductive hybrid staple spun yarns

Development of heating fabrics has a great potential in numerous applications. Heating fabrics can be developed by various approaches each having its own strengths and weaknesses. Incorporating staple fibre spun conductive yarn in the development of lightweight heating pads offers the advantage of obtaining required heating effect while maintaining flexibility, durability and comfort of the developed fabric. This study aimed at developing a conductive hybrid spun yarn composed of polyester and stainless staple fibers and characterizing its thermal behaviour in response to changes in its structural and procedural parameters. The effect of three variables namely yarn twist coefficient, applied voltage and tension on the yarn during testing, was investigated on thermal behavior of the yarn. Among the three, the applied voltage was found to dominantly control the temperature and hence the heating effect of the hybrid yarn. Yarn twist coefficient, which makes the yarn structure of the same fineness more compact at higher twist levels, was found to improve the heating effect at increased twist level at an applied voltage. However, changes in the tension on the yarn during the test was found to be not affecting the yarn temperature, thus producing a steady heating effect under varying tensions. The study shows that other than changing the applied voltage, the heating effect of the yarn can be improved by changing its twist level which controls the compactness of the yarn and thus different products with required thermal behavior can be tailored.

Electrostatic Filtration Performance of Conductive Fibrous Filters

Experiments were performed to improve the filtration efficiency of conductive fibrous filters by applying electrostatic charges. Ordinary polyester staple fiber and organic conductive fiber were blended in 90/10, 80/20, 70/30, and 60/40 ratios. Quantitative conductive needle felts were prepared by needle punching. The conductive fibrous filters were applied to a dc voltage supply (from 0 to 6 kV), and the relationship between filtration efficiency and the high voltage applied was studied. The results suggested that there was an approximately linear relationship between the filtration efficiency and the applied voltage value. The conductivity of filter material increased with increased blending ratio of the conductive fibers, basis weight, and thickness.

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

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.

Prevalence and determinants of respiratory problems among workers in El-Beheira Textile Companies

Textile industry workers are exposed to different hazards in the various sections of textile manufacturing. The major health problems associated with cotton dust are respiratory problems. Aims: this study was conducted to determine the prevalence and identify the determinants of respiratory health problems among textile workers in El–Beheira governorate. Design: A cross sectional descriptive study was adopted to carry out this study. The sample included 603 workers who were selected by proportional allocation technique from different departments and by systemic random sampling within the department. Data was collected using three tools (Textile companies' workers health profile, safety and health at work observational check list, Work place stress scale).Results: less than half (47.8%) of the workers had experience of 30 years or more (mean was 27.2 ± 6.6.). All workers reported that the personal protective equipment weren’t available. Moreover, all workers mentioned that there are no health education programs. The highest prevalence of respiratory problems found among spinning workers followed by dyeing workers, weaving workers, and polyester staple fiber. Conclusion, The significant prevalence and associated factors of respiratory problems should alert the factory, governmental and non-governmental organizations working on Occupational Health and Safety. Recommendations: Periodic inspection of working environment by industrial hygienist through regular measurement of cotton dust concentration.