Joy Sarkar

Bio: Joy Sarkar is an academic researcher from Khulna University of Engineering & Technology. The author has contributed to research in topics: Denim & Woven fabric. The author has an hindex of 3, co-authored 16 publications receiving 93 citations.

Effect of Industrial Bleach Wash and Softening on the Physical, Mechanical and Color Properties of Denim Garments

Abstract: Garments washing is a novel process to impart worn-out look, to modify the appearance and to improve the comfort ability of the garments. Bleach wash is used to fade the color of denim in a higher degree as well as bleach wash has effect on the physical and mechanical properties of the denim also. This paper presents the impact of bleach wash and subsequent softening treatment on 100% cotton denim dyed with indigo dye. Garments were washed using a bleach concentration of 10 g/l for 30 minutes in 50 o C temperature and then softened using standard recipe. The physical, mechanical and color properties were analyzed in before wash, after desizing, after bleaching and after softening. The properties that were analyzed include hand feel, tensile strength, seam strength, fabric weight, stiffness, dimensional stability and color fading. Bleach washed and softened garments exhibit a great difference in the physical, mechanical and color properties than the unwashed garments.

Effect of Enzyme Washing Combined With Pumice Stone on the Physical, Mechanical and Color Properties of Denim Garments

Abstract: Garments washing is being used as a novel process t o modify the appearance, to impart worn-out look and to improve the comfort ability of the garments, especially denim garments. Enzyme washing of denim garments helps in bio- polishing and to fade the co lor of the denim to a desired degree depending on t he processing time and conditions. Adding pumice stone with the enzyme extends the degree of fading and a dds special effect in the multi ply areas like differen t seams and hems. This paper presents the impact of enzyme- pumice stone combined treatment on 100% cotton denim. Garments were washed using an enzyme concentration of 1.5, 2.0 and 2.5 g/l for 40 minute s in 55°C temperature with addition of 0.5 owg (On the weight of garments) pumice stone. The physical and mechanical properties of the treated denims were analyzed using standard test methods. The properties that were ana lyzed include hand feel, tensile strength, seam str ength, fabric weight, stiffness, dimensional stability and color shade. Enzyme- stone washed garments exhibit a great difference in the physical and mechanical propertie s than the unwashed garments.

A Review on the Production Methods and Applications of Graphene-Based Materials.

Abstract: Graphene-based materials in the form of fibres, fabrics, films, and composite materials are the most widely investigated research domains because of their remarkable physicochemical and thermomechanical properties. In this era of scientific advancement, graphene has built the foundation of a new horizon of possibilities and received tremendous research focus in several application areas such as aerospace, energy, transportation, healthcare, agriculture, wastewater management, and wearable technology. Although graphene has been found to provide exceptional results in every application field, a massive proportion of research is still underway to configure required parameters to ensure the best possible outcomes from graphene-based materials. Until now, several review articles have been published to summarise the excellence of graphene and its derivatives, which focused mainly on a single application area of graphene. However, no single review is found to comprehensively study most used fabrication processes of graphene-based materials including their diversified and potential application areas. To address this genuine gap and ensure wider support for the upcoming research and investigations of this excellent material, this review aims to provide a snapshot of most used fabrication methods of graphene-based materials in the form of pure and composite fibres, graphene-based composite materials conjugated with polymers, and fibres. This study also provides a clear perspective of large-scale production feasibility and application areas of graphene-based materials in all forms.

Influence Of Enzyme And Silicone Wash On The Physico-Mechanical Properties Of Non-Denim Twill Garments

Abstract: Garments washing is one of the most important finishing treatments applied on apparels which have vital use to create special outlooks and improving the fashion. Technologically washing is one of the most important fashion elements for clothing industry and production of washed garments depends on the machine quality. In order to achieve an optimum effect of washing process, on the woven fabric in different washing time, Enzyme Wash and then Silicone wash were carried out for cotton fabric. However, there are some of the comments that when the garments have longer washing time, use of the chemical on the washing procedure will affect the physical and mechanical performance. The aim of this study is to determine the effects of industrial enzyme silicone wash combined with silicone wash. For this study currently fashionable regular Non- denim (100% cotton with twill 3/1 weave construction) trouser was chosen. The selected Non-denim trouser has been processed by enzyme and then silicone wash. In order to evaluate the washing effects on Non-denim trouser, changes of fabric handle, fabric specification (ends/inch, picks/inch, surface density, warp & weft yarn linear density), fabric strength has been determined during and after washing.

Effect of Enzyme Washing Combined With Pumice Stone on the Physical, Mechanical and Color Properties of Denim Garments

Abstract: Garments washing is being used as a novel process t o modify the appearance, to impart worn-out look and to improve the comfort ability of the garments, especially denim garments. Enzyme washing of denim garments helps in bio- polishing and to fade the co lor of the denim to a desired degree depending on t he processing time and conditions. Adding pumice stone with the enzyme extends the degree of fading and a dds special effect in the multi ply areas like differen t seams and hems. This paper presents the impact of enzyme- pumice stone combined treatment on 100% cotton denim. Garments were washed using an enzyme concentration of 1.5, 2.0 and 2.5 g/l for 40 minute s in 55°C temperature with addition of 0.5 owg (On the weight of garments) pumice stone. The physical and mechanical properties of the treated denims were analyzed using standard test methods. The properties that were ana lyzed include hand feel, tensile strength, seam str ength, fabric weight, stiffness, dimensional stability and color shade. Enzyme- stone washed garments exhibit a great difference in the physical and mechanical propertie s than the unwashed garments.

Sustainable and Ecological Finishing Technology for Denim Jeans

Abstract: enim Jeans finishing is an important operation for value addition of the final products in the apparel business. There are numerous operations exist for fulfilling of this treatment. This paper deals with the recent developments of the sustainable, environment friendly and emerging industrial approaches (Laser, Ozone and Water Jet) for the finishing treatments of the denim jeans. It is observed that finishing with laser and ozone is a reduced water treatment while water jet fading system though consumes water but assembling of water recycling system makes it ecological and economic. The adoption of these finishing technologies has brought about a radical transformation in the garment finishing industry, which is changing from an artisanal, labor intensive industry towards an industry based on knowledge and technology that feels more responsible for the environment and for workers.

Wrinkle Finish on Denim by Resin Treatment: A Review

Abstract: Nowadays, fashion in clothing is unimaginable without denim garment with a numerous effect Various types of dry and wet process are used to make these effect In this article, 3D/crinkle effect by creating wrinkles on the denim garments preceded by resin application is discussed This effect gives vintage look as well as add value to the garments though having possibility of decreasing tearing strength

The effect of denim color fading ozonation on yarns

Abstract: Denim color fading ozonation is dissimilar from other ozone applications as it is employed with distinctive parameters and on special products. In this study, yarns of cotton, lyocell and PET treat...

The effects of elastane and finishing processes on the performance properties of denim fabrics

Abstract: The main factors affecting consumers when selecting denim garments are aesthetic, appearance and fashion. Besides these factors, comfort and performance properties of the denim garments during usage are very important. The purpose of this paper is to determine the effects of different finishing processes on the performance properties of 100 percent cotton and 98 percent cotton+2 percent elastane denim fabrics.,The research design for this study consists of experimental study. In order to evaluate the effects of finishing on the performance properties of fabrics, eight types of fabrics were selected for evaluation. Rigid, resin, bleaching and softening type fabrics with and without elastane were analyzed statistically.,The results obtained in the study clearly showed that the types of finishing and elastane fiber in the fabric structure had a significant influence on mechanical and comfort properties of denim fabrics.,As a result of the literature review, it was seen that there were limited studies concerning mechanical, functional and comfort properties of denim fabrics together. In this study, the effects of finishing processes on the tear strength, stiffness, drape, mechanical and thermal comfort characteristics were deeply evaluated.