The Experts below are selected from a list of 54 Experts worldwide ranked by ideXlab platform
Zeeshan Khatri - One of the best experts on this subject based on the ideXlab platform.
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Colorful Nanofibers for Advanced Apparel Application
Materials Science Forum, 2018Co-Authors: Farooq Ahmed, Umair Ahmed Qureshi, Zeeshan KhatriAbstract:We report herein, the synthesis of colorful nanofibers by electrospinning and dyeing with various class of dyestuff. Results revealed that dyes impart better color yield with the acceptable colorimetric values, color yield and color fastness. Morphology of nanofibers showed smooth surface of the dyed nanofibers under SEM. Cellulose nanofibers in particular, were prepared using precursor cellulose acetate and then converted into cellulose under alkaline treatment. Results revealed that dyes impart better color yield with the adequate color yield (KS) and color fastness. Morphology of nanofibers showed smooth nanofibers after dyeing under SEM. Based results obtained, the colorful nanofiber can be a better choice for advance Apparel Applications.
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Cold pad-batch dyeing of cellulose nanofibers with reactive dyes
Cellulose, 2014Co-Authors: Zeeshan Khatri, Farooq Ahmed, Abdul Khaliq Jhatial, Muhammad Ishaque Abro, Gopiraman MayakrishnanAbstract:The dyeability of electrospun nanofibers for Apparel Application has recently gained substantial interest. Past work focused on batchwise and continuous dyeing methods, but they required a certain temperature for dye fixation. We report on the dyeing of cellulose nanofibers by the cold pad-batch method, which offers the most economical and convenient method of dyeing cellulosic nanofibers with reactive dyes. Cellulose acetate (CA) nanofibers were fabricated via electrospinning and then deacetylated to convert CA into cellulose nanofiber. The cellulose nanofiber webs were dyed with three different classes of reactive dyes. CI Reactive Black 5 obtained the highest color yield in comparison to CI Reactive Red 195 and CI Reactive Blue 19. The dye fixation for all dyes achieved between 80 and 85 %. Except color fastness to light, washing fastness of dyed cellulose nanofibers obtained very good to excellent results. To investigate the chemical structure and fiber morphology of the cellulose nanofibers, Fourier transform infrared spectroscopy and scanning electron microscopy were used respectively. Graphical Abstract
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cationic cellulose nanofibers preparation and dyeability with anionic reactive dyes for Apparel Application
Carbohydrate Polymers, 2013Co-Authors: Zeeshan Khatri, Gopiraman Mayakrishnan, Yuichi HirataAbstract:Continuous effort in research and development of nanofibers for Apparel usage has been focused within their functional properties only. We investigated esthetic properties by producing colored cationic-cellulose nanofibers for the very first time for the potential Application of Apparel use. The cellulose acetate nanofibers were electrospun followed by deacetylation and cationization to produce functional cationic-cellulose nanofibers and then dyed with anionic reactive dyes. The spectrophotometric measurement of dyed samples was carried out to determine color coordinates and color yield values. The cationic-cellulose nanofibers showed enhanced color yield and dye fixation without addition of an electrolyte in comparison to cellulose nanofibers. The cationization of cellulose nanofibers significantly enhanced the color yield values of around 76% at dye concentrations of 5%. Excellent color fastness results demonstrate that these new colored and breathable materials can potentially be considered as future Apparel for casual or fashion.
Gopiraman Mayakrishnan - One of the best experts on this subject based on the ideXlab platform.
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Cold pad-batch dyeing of cellulose nanofibers with reactive dyes
Cellulose, 2014Co-Authors: Zeeshan Khatri, Farooq Ahmed, Abdul Khaliq Jhatial, Muhammad Ishaque Abro, Gopiraman MayakrishnanAbstract:The dyeability of electrospun nanofibers for Apparel Application has recently gained substantial interest. Past work focused on batchwise and continuous dyeing methods, but they required a certain temperature for dye fixation. We report on the dyeing of cellulose nanofibers by the cold pad-batch method, which offers the most economical and convenient method of dyeing cellulosic nanofibers with reactive dyes. Cellulose acetate (CA) nanofibers were fabricated via electrospinning and then deacetylated to convert CA into cellulose nanofiber. The cellulose nanofiber webs were dyed with three different classes of reactive dyes. CI Reactive Black 5 obtained the highest color yield in comparison to CI Reactive Red 195 and CI Reactive Blue 19. The dye fixation for all dyes achieved between 80 and 85 %. Except color fastness to light, washing fastness of dyed cellulose nanofibers obtained very good to excellent results. To investigate the chemical structure and fiber morphology of the cellulose nanofibers, Fourier transform infrared spectroscopy and scanning electron microscopy were used respectively. Graphical Abstract
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cationic cellulose nanofibers preparation and dyeability with anionic reactive dyes for Apparel Application
Carbohydrate Polymers, 2013Co-Authors: Zeeshan Khatri, Gopiraman Mayakrishnan, Yuichi HirataAbstract:Continuous effort in research and development of nanofibers for Apparel usage has been focused within their functional properties only. We investigated esthetic properties by producing colored cationic-cellulose nanofibers for the very first time for the potential Application of Apparel use. The cellulose acetate nanofibers were electrospun followed by deacetylation and cationization to produce functional cationic-cellulose nanofibers and then dyed with anionic reactive dyes. The spectrophotometric measurement of dyed samples was carried out to determine color coordinates and color yield values. The cationic-cellulose nanofibers showed enhanced color yield and dye fixation without addition of an electrolyte in comparison to cellulose nanofibers. The cationization of cellulose nanofibers significantly enhanced the color yield values of around 76% at dye concentrations of 5%. Excellent color fastness results demonstrate that these new colored and breathable materials can potentially be considered as future Apparel for casual or fashion.
Yuichi Hirata - One of the best experts on this subject based on the ideXlab platform.
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cationic cellulose nanofibers preparation and dyeability with anionic reactive dyes for Apparel Application
Carbohydrate Polymers, 2013Co-Authors: Zeeshan Khatri, Gopiraman Mayakrishnan, Yuichi HirataAbstract:Continuous effort in research and development of nanofibers for Apparel usage has been focused within their functional properties only. We investigated esthetic properties by producing colored cationic-cellulose nanofibers for the very first time for the potential Application of Apparel use. The cellulose acetate nanofibers were electrospun followed by deacetylation and cationization to produce functional cationic-cellulose nanofibers and then dyed with anionic reactive dyes. The spectrophotometric measurement of dyed samples was carried out to determine color coordinates and color yield values. The cationic-cellulose nanofibers showed enhanced color yield and dye fixation without addition of an electrolyte in comparison to cellulose nanofibers. The cationization of cellulose nanofibers significantly enhanced the color yield values of around 76% at dye concentrations of 5%. Excellent color fastness results demonstrate that these new colored and breathable materials can potentially be considered as future Apparel for casual or fashion.
Bharath Chandrasekaran - One of the best experts on this subject based on the ideXlab platform.
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Structure-property relation between non-mulberry silk fabrics and goat suede leather
Polymers from Renewable Resources, 2011Co-Authors: P. S. Sureshkumar, Muthupandian Ashokkumar, Palanisamy Thanikaivelan, Bharath ChandrasekaranAbstract:Lack of availability of good quality leather and growing demand for products force the researchers to find alternative materials or to partially substitute the usage of leather in products. Eco-friendly biodegradable materials are the need of the hour owing to growing environmental issues associated with the synthetic polymers. This study aims at assessing the physical, comfort, structural and thermal properties of non-mulberry silks such as eri, muga and a blend of eri and muga (EM) fabrics for their suitability to combine with goat suede leather for Apparel Application. It was found that all the selected fabrics exhibit comparable or even better comfort and mechanical properties to that of goat suede leather. Indeed tensile strength of muga fabric is much superior to goat suede leather. On the other hand, goat suede leather dominates in percentage elongation compared to all the selected fabrics. Scanning electron microscopy and FTIR spectroscopic analysis provide convincing evidences on the fact that all the selected silk fabrics are based on non-mulberry varieties. The thermal stability of all the three silk fabrics is better than goat suede leather. The results of this study suggest that the selected silk fabrics can be used for making Apparel as well as other variety of products in combination with leather. © Smithers Rapra Technology, 2011.
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Comfort, chemical, mechanical, and structural properties of natural and synthetic leathers used for Apparel
Journal of Applied Polymer Science, 2009Co-Authors: Thomas Balasingh Sudha, Kavati Phebe Aaron, Kaliappa Krishnaraj, Palanisamy Thanikaivelan, Bharath ChandrasekaranAbstract:Natural leather is processed from hides and skins of animals. Synthetic leathers are becoming popular as an alternative material owing to limited availability and varying size of natural leathers. There is a need to understand the properties of natural and synthetic leathers to select proper material for an Application. In this study, materials used for Apparel Application such as natural sheep nappa leather and synthetic polyurethane (PU)-based leather have been chosen and analyzed for comfort, chemical, physical, and structural properties. It was found that natural sheep nappa leather has enhanced water vapor permeability whereas other comfort properties such as softness and drape ability are comparable to synthetic PU leather. Whereas synthetic PU leather dominated most of the physical properties, especially percentage elongation and stitch tear strength, in specific directions on account of polyester knitted base fabric. Chemical properties of natural sheep nappa leather and synthetic PU leather depended on the individual material composition and characteristics. Scanning electron microscopic (SEM) analysis provided convincing evidence for some of the quantified comfort and physical properties. The results of this study would be useful in selection of proper material for Apparel Application as well as in providing directions for future research in synthetic leather manufacture. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
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Comfort, chemical, mechanical, and structural properties of natural and synthetic lethers used for Apparel
Journal of Applied Polymer Science, 2009Co-Authors: Thomas Balasingh Sudha, Kavati Phebe Aaron, Kaliappa Krishnaraj, Palanisamy Thanikaivelan, Bharath ChandrasekaranAbstract:Natural leather is processed from hides and skins of animals. Synthetic leathers are becoming popular as an alternative material owing to limited avail- ability and varying size of natural leathers. There is a need to understand the properties of natural and synthetic leathers to select proper material for an Application. In this study, materials used for Apparel Application such as natural sheep nappa leather and synthetic polyurethane (PU)-based leather have been chosen and analyzed for comfort, chemical, physical, and structural properties. It was found that natural sheep nappa leather has enhanced water vapor permeability whereas other comfort proper- ties such as softness and drape ability are comparable to synthetic PU leather. Whereas synthetic PU leather domi- nated most of the physical properties, especially percent- age elongation and stitch tear strength, in specific directions on account of polyester knitted base fabric. Chemical properties of natural sheep nappa leather and synthetic PU leather depended on the individual material composition and characteristics. Scanning electron micro- scopic (SEM) analysis provided convincing evidence for some of the quantified comfort and physical properties. The results of this study would be useful in selection of proper material for Apparel Application as well as in pro- viding directions for future research in synthetic leather manufacture.
Farooq Ahmed - One of the best experts on this subject based on the ideXlab platform.
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Colorful Nanofibers for Advanced Apparel Application
Materials Science Forum, 2018Co-Authors: Farooq Ahmed, Umair Ahmed Qureshi, Zeeshan KhatriAbstract:We report herein, the synthesis of colorful nanofibers by electrospinning and dyeing with various class of dyestuff. Results revealed that dyes impart better color yield with the acceptable colorimetric values, color yield and color fastness. Morphology of nanofibers showed smooth surface of the dyed nanofibers under SEM. Cellulose nanofibers in particular, were prepared using precursor cellulose acetate and then converted into cellulose under alkaline treatment. Results revealed that dyes impart better color yield with the adequate color yield (KS) and color fastness. Morphology of nanofibers showed smooth nanofibers after dyeing under SEM. Based results obtained, the colorful nanofiber can be a better choice for advance Apparel Applications.
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Cold pad-batch dyeing of cellulose nanofibers with reactive dyes
Cellulose, 2014Co-Authors: Zeeshan Khatri, Farooq Ahmed, Abdul Khaliq Jhatial, Muhammad Ishaque Abro, Gopiraman MayakrishnanAbstract:The dyeability of electrospun nanofibers for Apparel Application has recently gained substantial interest. Past work focused on batchwise and continuous dyeing methods, but they required a certain temperature for dye fixation. We report on the dyeing of cellulose nanofibers by the cold pad-batch method, which offers the most economical and convenient method of dyeing cellulosic nanofibers with reactive dyes. Cellulose acetate (CA) nanofibers were fabricated via electrospinning and then deacetylated to convert CA into cellulose nanofiber. The cellulose nanofiber webs were dyed with three different classes of reactive dyes. CI Reactive Black 5 obtained the highest color yield in comparison to CI Reactive Red 195 and CI Reactive Blue 19. The dye fixation for all dyes achieved between 80 and 85 %. Except color fastness to light, washing fastness of dyed cellulose nanofibers obtained very good to excellent results. To investigate the chemical structure and fiber morphology of the cellulose nanofibers, Fourier transform infrared spectroscopy and scanning electron microscopy were used respectively. Graphical Abstract
