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Application of natural dyes on textiles

TL;DR: In this paper, the authors have reported the studies available on the characterization and chemical/biochemical analysis of natural dyes; extraction of colorants from different natural sources; effects of different mordants and mordanting methods; conventional and non-conventional methods of natural dyeing; physico-chemical studies on dyeing process variables and dyeing kinetics; development of newer shades and analysis of colour parameters for textiles dyed with natural dye.
Abstract: This paper reports the studies available on the characterization and chemical/biochemical analysis of natural dyes; extraction of colorants from different natural sources; effects of different mordants and mordanting methods; conventional and non-conventional methods of natural dyeing; physico-chemical studies on dyeing process variables and dyeing kinetics; development of newer shades and analysis of colour parameters for textiles dyed with natural dyes; and test of compatibility for application of binary mixture of natural dyes. The chemical modification of textile substrate for improving dyeability, attempts for improvement in overall colour fastness properties and survey of some traditional processes of natural dyeing in different parts of India have also been discussed.
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Journal ArticleDOI
TL;DR: In this article, a review encompasses a summary of research performed in last 15 years (1998-2013) in different arenas of applications of natural dyes, with specific reference to technological development in natural textile dyeing and use of natural Dyes in functional finishing of textiles, food coloration and dye-sensitized solar cells.

681 citations

Journal ArticleDOI
TL;DR: In this paper, the most important textile applications of environmental friendly plant-based products such as fibres, polysaccharides, dyes and pigments, polyphenols, oils and other biologically active compounds are highlighted.

260 citations

Journal ArticleDOI
TL;DR: In this article, the exploitation of magnetic composites and magnetic nanocomposites for adsorption of dyes, hazards posed by Dyes, sorption mechanism, preparation methods, magnetic behavior and characteristics of magnetized particles with the relevant literature on the basic principle of adsorbption using MCs and MNCs for separation of dye under optimum physicochemical condition.
Abstract: Adsorption is the most extensively used technique for dye sequestration. Magnetic separation of toxic pollutant is becoming a potential method in waste water purification and found to have predominant significance in the removal of dyes more effectively compared to conventional method of treatments. Numerous natural and synthetic adsorbents were used, out of which magnetic composites (MCs) and magnetic nanocomposites (MNCs) have gained much attention presently in the removal of dyes from aqueous solution. Abundant references are existing pertaining to synthesis of various magnetic composites and its application in adsorption of dyes. This report displays the exploitation of MCs and MNCs for adsorption of dyes, hazards posed by dyes, sorption mechanism, preparation methods, magnetic behavior and characteristics of magnetized particles with the relevant literature on the basic principle of adsorption using MCs and MNCs for separation of dyes under optimum physicochemical condition. Adsorption reaction model, diffusion model and isotherms which facilitate in understanding the reaction mechanism between adsorbent and adsorbate are concisely discussed.

191 citations

Journal ArticleDOI
TL;DR: In this paper, the extract of leaves of henna was applied on woollen yarn to investigate the dyeing characteristics and antimicrobial efficacy against common human pathogens such as Escherichia coli MTCC 443, Staphylococcus aureus MTCC 902 and Candida albicans ATCC 90028.

179 citations


Cites background from "Application of natural dyes on text..."

  • ...A number of researchers around the globe worked on the applications of natural coloring materials to the textiles but most of the studies focused on standardization of mordanting and dyeingmethods, study of colorimetric and fastness properties (Bechtold et al., 2003; Samanta and Agarwal, 2009)....

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Book ChapterDOI
01 Jan 2014
TL;DR: A review of the current status of natural dyes and various sustainability issues involved in their production and application and examines their future prospects is presented in this paper, where the authors examine the future prospects of natural dye applications.
Abstract: Dyes derived from natural materials such as plant leaves, roots, bark, insect secretions, and minerals were the only dyes available to mankind for the coloring of textiles until the discovery of the first synthetic dye in 1856. Rapid research strides in synthetic chemistry supported by the industrialization of textile production not only led to the development of synthetic alternatives to popular natural dyes but also to a number of synthetic dyes in various hues and colors that gradually pushed the natural dyes into oblivion However, environmental issues in the production and application of synthetic dyes once again revived consumer interest in natural dyes during the last decades of the twentieth century. Textiles colored with natural dyes are preferred by environmentally conscious consumers and today there is a niche market for such textiles. But the total share of natural dyes in the textile sector is approximately only 1 % due to certain technical and sustainability issues involved in the production and application of these dyes such as nonavailability in ready-to-use standard form, unsuitability for machine use, and limited and nonreproducible shades. Natural dyes per se are sustainable as they are renewable and biodegradable but they cannot fulfill the huge demand from the textile sector in view of the preferential use of land for food and feed purposes. Also, overexploitation of natural resources to obtain dyes may result in deforestation and threaten endangered species. For these reasons, the Global Organic Textiles Standard (GOTS) permits the use of safe synthetic dyes and prohibits the use of natural dyes from endangered species. Various research efforts have been undertaken all over the world to address the shortcomings of natural dyes in view of the tremendous environmental advantage they offer. This book attempts to review the current status of natural dyes and various sustainability issues involved in their production and application and examines their future prospects.

161 citations


Cites methods from "Application of natural dyes on text..."

  • ...Different techniques including highperformance liquid chromatography (HPLC), thin-layer chromatography (TLC), high-performance thin-layer chromatography (HPTLC), UV visible, and mass spectroscopy have been employed for this purpose [13, 46]....

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