Md. Reazuddin Repon

• Doctor of Engineering
• Postdoctoral Researcher at Aalto University

As textile production continues to grow worldwide, managing the mounting waste generated by this industry is becoming an urgent environmental concern. Globally, over 92 million tons of textile waste are produced annually, much of which is incinerated or disposed of in landfills, contributing to greenhouse gas emissions, soil and water contamination...

This study investigated the potential of eco-friendly substances, namely Banana pseudostem sap (BPS) and phytic acid (PA), to enhance the flame-retardant properties of cotton fabric. The process involved applying various concentrations of BPS (100%, 200%, 300% and 400%) to pre-mordanted scoured-bleached cotton fabric. The treated fabrics were then...

The potential to replace synthetic materials with natural plant fibers is enormous. The purpose of this extensive research was to identify and outline novel sustainable fibers by extracting from the bark of Phyllanthus reticulatus plants. The present research work shows, Phyllanthus reticulatus fibers have a lot of promise as a greener substitute f...

The development of antimicrobial fabric with comfort ability for biomedical applications in a scalable, cost‐effective coating process is now extremely challenging. This study aims to develop an antimicrobial comfortable single jersey knit fabric with in‐situ generated AgNPs (silver nanoparticles) adhesion in a facile technique for biomedical appli...

Silk, a natural polymer protein fiber, possesses exceptional properties such as smoothness, softness, breathability, and drapability. However, silk is susceptible to photochemical reactions in light, leading to yellowing, brittleness, and deterioration on the fabric's surface, which significantly affects its service life and performance. In this ex...

The healthcare industry can greatly benefit from natural colorants as bioactive component integrated textiles. These textiles are perfect for use in healthcare because they are biocompatible, have antimicrobial characteristics and are sustainable. It is an exciting new development that might replace harmful synthetic dyes with safer and more practi...

Natural dyes serve as a benign alternative to their synthetic counterparts, offering a sustainable option that directly mitigates the release of toxic chemicals. In this study, cotton fabrics were dyed with neem leaf extract in acidic, neutral and alkaline condition where samples were mordanted with lemon juice. The findings revealed a direct corre...

Microfiber is a type of fiber known as microplastic produced from a blend of polyester and polyamide (70:30 to 90:10) that creates tiny teardrop-shaped fibers, smaller than 5 mm, almost the size of a grain of rice. Microfibers are the most abundant form of microplastic in the environment. Most of these particles are composed of broken-down plastic...

Microfibers are the most common type of microplastic in the environment. During home laundry, microfibers are released in large quantities from the textile industry by means of sewage effluents and/or sludge. Due to its harmful nature for both aquatic and human species, microplastics have triggered growing concern. They contribute not only to the a...

Textile products often serve as breeding grounds for microorganisms, posing significant health and hygiene concerns. In response, there is a growing demand for textile products with antimicrobial properties. This research work aims to develop antimicrobial textile products sustainably using natural ingredients such as onion (Allium cepa), ginger (Z...

This study investigated the potential of eco-friendly substances, namely Banana Pseudostem Sap (BPS) and phytic acid (PA), to enhance the flame-retardant properties of cotton fabric. The process involved applying various concentrations of BPS to pre-mordanted bleached cotton fabric. The treated fabrics were then analyzed for vertical flammability a...

This review underscores the novelty of silk sericin, often regarded as a byproduct in silk production. Comprising approximately 30% of silk, sericin possesses valuable properties that have been largely overlooked in favor of silk fibroin. This work focuses on innovative extraction methods to convert sericin, typically considered waste, into a valua...

Textile industry has a significant water footprint (WF), leading to various sustainability challenges. This article discusses key findings on the WF and outlines potential solutions. The industry’s WF includes three types: green, blue, and grey. Textile manufacturing is water-intensive, with stages like pretreatment, dyeing, printing, and finishing...

In this paper, the potential of beetroot as a natural source to dye a synthetic fiber that is, nylon 6 fabric, has been examined. We analyzed the impact of the most important dyeing parameters, such as dyeing temperature, dyeing time, pH of the dye bath, and dye concentration, on the dyeing efficiency of the nylon 6 fabric. We achieved the optimal...

Fluorescent brightening agent OB-1 (OB-1) is often used in plastic goods because of its non-toxic nature, chemical stability, remarkable heat resistance, and light stability. Raw OB-1 is challenging to use in textiles using the exhaustion method. This study used a novel method using raw OB-1 powder to whiten polyester fabric in water and decamethyl...

The current study proceeded to reduce the environmental hazards spreading worldwide due to synthetic dyes. To overcome these problems, eco-friendly natural dyes are introduced as alternative sources of synthetic dyes. The present study was focused on exploring the bio-colorant of the aqueous and acidic extract of the bark of Melia azedarach L. for...

Most of the fabric properties of knitted fabric could be controlled by stitch length and fabric structures. Stitch length is the principal fabric parameter for knitted fabric. This study investigated the effect of surface modification, stitch length and fabric structures on the fundamental fabric properties of knitted fabric. In this study, three d...

A sustainable solution to lessen environmental damage, improve health and fulfill the increasing need for environmentally conscious goods might be for the textile industry to use eco‐friendly printing techniques and natural colors. Without the use of toxic metal‐based mordants, this research work set out to examine how natural thickeners, biomordan...

In recent years, functional antimicrobial fabric materials have been in high demand in the health sector due to the impact of COVID-19. Considering the increasing demand, and the availability of natural, environment-friendly, non-toxic products is not boundless. In this study, a facile, eco‑friendly method for the preparation of antimicrobial funct...

This research work examines how consumer behavior and purchasing pattern are affected by recycled cotton-polyester blended clothing, with a particular emphasis on sustainable apparel merchandising. The use of recycled materials has drawn a lot of attention as environmental sustainability in the fashion business is growing attention. In order to inv...

Natural dyes offer a harmless alternative to synthetic counterparts, minimizing the release of toxic chemicals associated with synthetic dyes. In this investigation, nylon fabrics underwent dyeing with neem leaf extract under acidic, neutral and alkaline conditions along with lemon juice mordant. The study revealed that colour strength exhibited an...

Today world is looking for a cheap, environment friendly and efficient substitute of fossil fuel. Because due to large consumption of the fossil fuels on daily basis in whole world, emission of hazardous gases have produced lethal effects on human being. In this scenario hydrogen energy has emerged in form of clean, renewable and more efficient ene...

In recent years, consumer preferences have begun to turn back to natural dyes, whereas synthetic dyes have been pushed into the background over the previous 60 years. This is a result of increased knowledge of the potential hazards associated with the creation of synthetic dyes, which use raw materials derived from petrochemicals and involve intens...

Jute is an inherent lignocellulosic fiber, consisting of hemicellulose, α-cellulose, and lignin. Industrial ventilation, automotive composites, upholstery, carpets, military uniforms, hospital furnishings, and curtains necessitate the integration of flame-retardance properties into jute fibers. In this investigation, seven weave-structured jute fab...

Disperse dyes, primarily used for dyeing synthetic fibres like polyester, are characterized by their poor solubility in water, which necessitates the use of dispersing agents; however, environmental concerns arise due to their low biodegradability and potential toxicity, thus posing significant challenges in waste management and pollution control....

Natural biopolymers are one of the important gifts of nature on this earth. Nevertheless, because several essential properties of biopolymers limit their application in different fields, people have found substitute methods to develop their properties without much effect on their natural properties. The chemical modification of biopolymers is consi...

Chronic exposure to ultraviolet (UV) radiation can cause degenerative changes in the cells, fibrous tissues and blood vessels. Moreover, microbiological attacks pose severe risks to human health and are a major cause of sickness worldwide. The aim of this work is to develop UV protective and antimicrobial materials using zinc oxide (ZnO) colloidal...

Natural fiber composites are a renewable and environmentally friendly alternative to conventional synthetic materials that combine the biodegradability and essential durability of natural fibers with adaptability. Improved adhesion between fibers and matrix can be accomplished by comparing surface treatments applied to sugarcane, water hyacinth, an...

Cotton is the most widely used natural cellulosic polymer and polyester is a synthetic polymer. The use of polyester fiber is increasing gradually day by day due to its strength and longevity, while the use of cotton fiber is decreasing due to its unavailability. At present, the use of cotton‐polyester composites is ubiquitous. This research work a...

The demand for superhydrophobic fabric with self‐cleaning and antibacterial features as potential practical applications has been rising steadily with the passage of time. In this research work, the wet chemical method is used to manufacture cotton with a superhydrophobic coating. Thus, Nanoparticles of silver were produced by using an in situ meth...

Today, textile-based wearable electronic devices (textronics) have been developed by taking advantage of nanotechnology and textile substrates. Textile substrates offer flexibility, air permeability, breathability, and wearability, whereas, using nanomaterials offers numerous functional properties, like electrical conductivity, hydrophobicity, touc...

Execution of natural thickener (wild taro corm) over pretreated cotton woven fabric with reactive dye has been explored in this research work. Taro root was collected from Sherpur in Bangladesh and made into a fine powder using a grinder. Thickener pastes were prepared by using different concentrations of taro powder, then their viscosity was measu...

Textile and garments production involves a wide range of steps, beginning with the spinning of fibers into yarn, then manufacturing to fabric and finally, adding value-enhancing treatments like washing, dyeing and finishing to the outfits. Frequently, these manufacturing processes contravene the overarching tenets of environmental viability. Compou...

The demand for sustainable and environmentally friendly practices by reducing the usage of virgin materials and minimizing the environmental impact associated with textile production has increased. However, due to the subjectivity of reuse and recycling for waste management, developing textiles with sustainable and quality yarn characteristics rema...

The demand for natural dyes is increasing due to the negative environmental impacts of synthetic color. In fact, customers are becoming more concerned about their health and the environmentally friendly products. The aim of this research is to disclose the dye extraction process using the ultrasonic method and eco‐friendly dyeing of organic cotton...

The increasing depletion of reserves of natural resources has led to a growing worldwide focus on the exploitation of available waste in new domains. The presence of weedy plants is pervasive on a global scale and has detrimental effects on several aspects of the environment, agriculture, and people's health. Therefore, repurposing these Agri-weed...

Recently, the emerging 2D materials MXene have gained a surge of attention to the production of optoelectronics devices such as solar cells, plasmonic, phototransistors, photodetectors, light-emitting diodes, photothermal therapy, and so on. Its outstanding optical and electrical characteristics, unique structure, and large specific surface area ma...

The rising pollution by synthetic dyes from the textile industry is a serious health problem calling for safer chemicals and textile production methods. As an alternative, bio-based colorants are increasingly used for food, cosmetics, flavors, medical applications. Here we review bio-based textile dyeing with focus on dye classification, methods to...

The optimization of pretreatment parameters is one of the most important factors for the successful dyeing of textile materials. The aim of this study was to investigate the most effective way of pre-treating cellulose based lyocell knitted fabric in order to achieve an optimal result when dyeing it with reactive dyestuffs. This research investigat...

Dyeing with natural ingredients has gained popularity as a sustainable option because of its numerous useful applications and favorable environmental impacts. The purpose of this study was to determine the optimal conditions for extracting natural dyestuff from the red rose flower (Rosa rubiginosa) by observing the coloring of viscose fabric. The p...

Natural fibers are one of the most attractive materials in biocomposites due to their potential for sustainability. This study aims to prepare sustainable composite materials using fibers from Sansevieria trifasciata (snake plant) and to investigate their mechanical, morphological, and water absorption properties. The composite was prepared with ep...

Natural dyes have gained importance as a non-toxic alternative of synthetic dyes. This research explores the potential of utilizing sawdust waste from the timber industry as a natural dye for cotton fabrics coloration. To enhance its durability, metal mordants were employed. The exhaust method was utilized for pre-treatment and dyeing processes. St...

In recent years, a new class of highly crystalline advanced permeable materials covalent‐organic frameworks (COFs) have garnered a great deal of attention thanks to their remarkable properties, such as their large surface area, highly ordered pores and channels, and controllable crystalline structures. The lower physical stability and electrical co...

The utilization of synthetic dyes in various manufacturing industries, particularly textiles, has resulted in significant environmental issues. As a result, natural dyes have become increasingly important as a non-toxic alternative. However, their availability and standardization processes are limited. In this study, we investigate the potential of...

With the growing concerns about the conservation of the environment and the minimal consumption of water, the self-cleaning approach for textile materials is gaining much popularity and interest day-by-day. There are various approaches for producing self-cleaning textiles surfaces, of which the application of nanoparticles is more effective. The se...

Textile air management systems are used in modern buildings to improve overall indoor air quality. During use and storage, industrial textiles are negatively affected by microbes. Adding biocide to synthetic fibres can control the detrimental effects of antimicrobial finishing on textiles. Antimicrobial textiles have seen a rapid increase in demand...

Natural fiber reinforced polymer composites (NFRPCs) have emerged as promising eco‐friendly alternatives over conventional synthetic fiber composites due to their inherent biodegradability, renewability, low environmental impact, and lightweight properties. It has been seen a significant growth in both invention and innovation in the field of NFRPC...

Nanotechnology is gaining enormous attention as the most dynamic research area in science and technology. It involves the synthesis and applications of nanomaterials in diverse fields including medical, agriculture, textiles, food technology, cosmetics, aerospace, electronics, etc. Silver nanoparticles (AgNPs) have been extensively used in such app...

Exploration of natural fiber-reinforced polymer composites (NFRPCs) in cutting-edge applications is due to phenomenal properties, such as lightweight, low-cost, and environmental aspects. NFs can effectively compete to the synthetic fibers in terms of mechanical, thermal and acoustic properties. As a result, the invention and innovation of natural...

Bioactive textile materials are a promising field in the development of functional textiles. The integration of bioactive compounds, such as natural dyes, into textiles offers a range of benefits, including UV protection, anti-microbial properties, and insect repellency. Natural dyes have been shown to have bioactivity, and their integration into t...

A quest was carried out to print on light weight lyocell knitted fabric with two mono-functional reactive dyes using pure guar gum (GG) or substituted guar gum (SGG) in combination with sodium alginate (Al) at different ratios. For each dyestuff, the print paste was prepared using mixed thickeners, namely GG/Al or SGA/Al at five different ratios. A...

Synthetic dyes used for the coloration of textile goods are not readily biodegradable and are a major concern for water pollution. Nature has abundant sources of potential colorants for textile applications. There are many challenges in textile coloration using natural dyes and pigments, and significant research efforts are currently put into repla...

In this study, hematite Iron oxide nanoparticles (NPs) have been prepared in large-scale by wet-chemical method using ferric chloride and urea as a starting material in aqueous-alkaline medium. The structural, physical, and optical properties are characterized using FT-IR, UV–vis spectroscopy, Raman spectroscopy, X-ray diffraction, Field-emission s...

The rapid growth of population and industrialization have intensified the problem of water pollution globally. To meet the challenge of industrialization, the use of synthetic dyes in the textile industry, dyeing and printing industry, tannery and paint industry, paper and pulp industry, cosmetic and food industry, dye manufacturing industry, and p...

A huge amount of waste was generated from the apparel industries. This study aims to develop the process of producing recycled yarn from apparel waste. The apparel leftover fabric was converted to fiber, and the fiber was mixed with virgin cotton in different ratios to produce sustainable 6/1 Ne rotor yarn. The produced yarn qualities viz. count st...

The ultraviolet rays from sunlight pose a natural hazard to human health and can cause serious health problems. Some medical artificial lights also emit ultraviolet radiation. Unprotected human skin exposed to ultraviolet (UV) light can cause serious health problems, including skin aging, photosensitivity (rash), erythema (redness of the skin), and...

Dyes are substances that enhance the appearance of finished goods by providing uniform colour. Dyeing is the application process of dyes that are fixed in textile fibers. The dyeing process uses various steps, including pre-treatment, desizing, scouring, bleaching, carbonizing, degumming, and mercerization. Water is considered the primary medium fo...

Jute is a biodegradable , agro-renewable, and widely available lingo cellulosic fiber having high tensile strength and initial modulus, moisture regain, good sound, and heat insulation properties. For these unique properties and eco-friendly nature of jute fibers, jute-based products are now widely used in many sectors such as packaging, home texti...

This work investigated the effect of superheated steam (SHS) jute fiber and poly (lactic acid) (PLA) having a weight proportion of 30:70 which were synthesized using the melt blending method. The goal of this treatment was to boost up the fiber-polymer interfacial linkage. The action was conducted in a superheated steam oven at various times (30-12...

The rapid growth of the population severely influences the supply of energy, accordingly ensuring clean energy has become a big challenge now and will be in the future. Fossil fuels have been satisfying the energy demand until now, but fossil fuels, being non‐renewable sources, will not be able to satisfy the energy demand in the future and will ha...

The goal of this research was to learn more about how heat is generated during cyclic deformation of highly conductive knitted composite fabric. The heating materials in this investigation were silver (Ag) coated polyamide (PA) yarn knitted into a pattern. At various time intervals, the temperature generated on the fabric surface was measured. An I...

Textile electronic materials being wearable, portable, and flexible have sparked immense interest in the technological sector. The current state-of-the-art procedures for making battery electrodes are inherently insufficient for producing multifunctional materials. Textile substrates (e.g., fiber, yarn, fabrics, and garments) with carbon derivative...

Applying flame retardant finish on jute makes flame protective jute products that can be another diversified use of it. The target of this experiment is to observe the flame retardancy improvement of the fabric properties after finishing treatment with various flame retardant chemicals. The untreated (raw) and H2O2 bleached jute fabrics having plai...

This work deals with the electrically conductive textiles for heat generation in orthopedic compression supports. This study aimed to develop compression knitted structures with integrated electro-conductive yarns and investigate their heat generation characteristics and temperature changes during the time and under stretch which is required to gen...

Seam strength is critical in achieving the proper and adequate quality seam, which eventually determines the overall quality of any garment. The target of this research was to investigate exactly how different stitch density affected seam strength for different stitch types. Commercially available, 100% cotton plain weave structured woven fabric wi...

This experiment presents a study carried out on the electric charge passing textiles for heat production in compression weft-knitted composite fabrics used for medical purposes. The aim was to flourish compression support of knitted structure with integrated highly sensitive metal (silver) coated polyamide multifilament yarns and to evaluate its he...

This study focuses on the impacts of the draft on the characteristics of MVS produced CVC blended yarn. The output of a finisher drawn sliver with a linear density of 3.54 ktex was converted into yarns of 18.45 tex (32 s/1 Ne) with the help of two separate delivery speeds: 350 and 410 m/min when possessing all constant spinning parameters. The prop...

This study aimed to investigate the effect of extensibility on cotton blended polyester-spandex core-spun yarn in the weft direction of 3/1 right-handed Z-twill denim. For the preparation of samples, 100% ring spun cotton yarn of 42 tex (14s/1 Ne) was used as warp, and 70:30, 30:70, 60:40, and 40:60 cotton-polyester core-spun yarn of 30 tex (20s/1)...

This study aimed to investigate the effect of extensibility on cotton blended polyester-spandex core-spun yarn in the weft direction of 3/1 right-handed Z-twill denim. For the preparation of samples, 100% ring spun cotton yarn of 42 tex (14 s /1 Ne) was used as warp, and 70:30, 30:70, 60:40, and 40:60 cotton-polyester core-spun yarn of 30 tex (20 s...

Every so often, grading is not 100% accurate due to the conventional system for calculating the grading increment. The aim of this study was to develop a new calculation system of grading increment provided by different software, e.g. Lectra, Gerber, Optitex, Boke CAD etc., and to develop a new mathematical solution that enhances grading precision....

Multifunctional fabrics using conventional processes have piqued increasing global interest. The focus of this experiment was to assess the modification of the cotton fabric surface by utilizing silver nanoparticles (AgNPs) and introducing functional properties along with sustainable dyeing performance. A single-jersey knitted fabric composed of ce...

Textile-based heaters have opened new opportunities for next-generation smart heating devices. This experiment presents electrically conductive textiles for heat generation in orthopaedic compression supports. The main goal was to investigate the influence of frequent washing and stretching on heat generation durability of constructed compression k...

Intelligent textiles are predicted to see a ‘surprising’ development in the future. The consequence of this revived interest has been the growth of industrial goods and the improvement of innovative methods for the incorporation of electrical features into textiles materials. Conductive textiles comprise conductive fibres, yarns, fabrics, and finis...

This research aims to study the spinnability of pristine PALF and PALF blended cotton using the existing spinning machines. Apron draft ring spinning frame and flyer jute spinning frame were used to produce 100% PALF yarn and the yarns count were found 121 tex and 138 tex separately. Besides, 90:10 and 80:20 cotton-PALF blended 30 tex yarn spun in...

The main goal of the presented study was to develop new multi-layered weft-knitted structure for thermal insulation and to investigate the dynamic of the heat transfer through this fabric. For knitting of outer and inner layers of this structure, different raw materials of yarns were used, i.e. wool, cotton, polyester and acrylic yarns. All the new...

This paper presents the results of Open End (OE) yarn tension investigation using a yarn-guide funnel with an elastic element. Obtained were the dependencies of tension change on such factors as body mass, elastic element rigidity, yarn coordinates on the funnel surface, and the speed of yarn moving. The values of these factors cause fluctuations i...