Dyes and Pigments


Book Description

In this book the authors go back to basics to describe the structural differences between dyes and pigments, their mechanisms of action, properties and applications. They set the scene by explaining the reasons behind these differences and show how dyes are predominately organic compounds that dissolve or react with substrates, whereas pigments are (predominantly) finely ground inorganic substances that are insoluble and therefore have a different mode of coloring. They also describe the role of functional groups and their effect on dyeing ability, contrasting this with the way in which pigments cause surface reflection (or light absorption) depending on their chemical and crystalline structure and relative particle size. The book explores the environmental impact of dyes in a section that covers the physical, chemical, toxicological, and ecological properties of dyes and how these are used to assess their effect on the environment and to estimate whether a given product presents a potential hazard. Lastly, it assesses how, in addition to their traditional uses in the textile, leather, paper, paint and varnish industries, dyes and pigments are indispensable in other fields such as microelectronics, medical diagnostics, and in information recording techniques.




Handbook of Natural Dyes and Pigments


Book Description

This book is of the view that natural dyes have always been preferred by people because they are user-friendly, eco-friendly, and are harmless to health and environment. The book provides information about the different natural dyes, their uses and their methods of extraction to produce brilliant and deep shades of natural dyes similar to the synthetic ones in every way by using modern methods.




Environmental Chemistry of Dyes and Pigments


Book Description

In the last two decades the EPA and other national andinternational agencies have placed increasingly strict regulationson the manufacture and use of synthetic colorants. The pigment anddye industry has had to develop the technology necessary to analyzeand remediate pollutants in wastewater. Although these efforts haveproduced a considerable volume of information, until now, no singlebook has provided an organized, comprehensive treatment of theenvironmental chemistry of synthetic colorants. Environmental Chemistry of Dyes and Pigments is the firstcomprehensive reference to address the environmental problems posedby synthetic colorants, and to provide a forum for the solutionsproposed by industry, government, and academia. Focusing ondevelopments in the field over the past two decades, it deals withall aspects of colored wastewater treatment, the disposal of dyes,analytical methods, toxicity, and regulatory questions. In its coverage of wastewater treatment, this book addresses boththe most commonly used methods and those specifically designed toaddress pollution problems at the source by analyzing for andremoving dyes and pollutants from wastewater effluent. Throughout,real-world data on a wide variety of dyes and dye intermediates isprovided, as well as cost-effective strategies for dealing withwastewater treatment. In addition, several chapters are devoted to the perspectives ofnational and international experts on regulations governing themanufacture, handling, use, and disposal of synthetic dyes andpigments. The impact these regulations have had on both U.S. andforeign industry is also discussed. A complete, comprehensive, and up-to-date guide to pollutionprevention in the dyestuff and textile industries Environmental Chemistry of Dyes and Pigments is the onlyself-contained volume that focuses on the environmental impact ofsynthetic dyes and pigments. Contributions by international expertsfrom industry, academia, and government make this an indispensablebook for anyone dealing with the environmental problems posed bysynthetic colorants. It covers the entire range of environmentalissues, from waste treatment and analysis to pollution preventionand government regulations. Covers the latest wastewater treatment methods Shows how to use recycling and reusing methods effectively, whilecutting production costs Describes state-of-the-art technology, including the PACT(r)system Explains analysis techniques, including spectrometry andionization Covers legislative issues and the regulatory status of variouscompounds in both the United States and abroad Examines the various pollution prevention programs instituted bygovernment and industry Bridging the gap between industrial interests and environmentalconcerns, Environmental Chemistry of Dyes and Pigments stands as aninvaluable resource for scientists, researchers, and engineers inthe textile and dyestuff industries, and in the environmentalsciences. It is also an extremely useful text for environmentalscience students.




True Colors


Book Description

This updated 2nd edition features a revised chapter. True Colors is about artists who create color from natural materials and about the historical importance and environmental sustainability of this practice. Deep conversations with 26 artisans from every part of the globe reveal their wisdom, traditions, and know-how—and suggest that we ignore what they know at our peril. Traditional approaches to making color offer sustainable options to a fashion system badly in need of them and memorable cultural narratives to a world hungry for beauty and spirituality. True Colors provides an immersive visual experience and an inspiring travelogue of personal stories and practical information from artists who are leaving their mark on the world.




Discoveries: Colors


Book Description

Chronicles the history of dyes and pigments and their related industries, discussing colors in the Middle Ages; the explosion of supply and demand in the sixteenth, seventeenth, and eighteenth centuries; and advances in industrial chemistry.







Dyes and Pigments


Book Description

Dyes and pigments have been utilized since ancient times. They play an important role in everyday life and their use is interwoven with human culture. Even though numerous dyes and pigments have been synthesized to date, and a lot of knowledge has been gained regarding their production and properties, scientific research is pushing the boundaries towards novel dyes and pigments for high-tech applications. At the same time, the accumulation of dyes and pigments in natural environments and pollution of water resources due to their massive use are important consequences to consider. New methods for the degradation and removal of dyes and pigments from affected areas are highly sought after. As such, this book examines new trends in smart and functional dyes and pigments and their uses as well as novel treatment approaches to dye and pigment waste.




Liquid Chromatography of Natural Pigments and Synthetic Dyes


Book Description

This latest volume in the series entitled Liquid Chromatography of Natural Pigments and Synthetic Dyes presents an overview of the latest developments in the field while critically evaluating this method of analysis and providing comparisons of the various liquid chromatographic separation techniques that are currently available. Natural pigments and synthetic dyes are extensively used in various fields of everyday life including food production, textile industry, paper production, agricultural practice and research and water science and technology. Besides their capacity for increasing the marketability of products, natural pigments have shown advantageous biological activity as antioxidants and anticancer agents. On the negative side, synthetic pigments have a significant impact on the environment and can cause adverse toxicological side effects. Both pigment classes exhibit considerable structural diversity. As the stability of the pigments against hydrolysis, oxidation and other environmental and technological conditions is markedly different, the exact determination of the pigment composition may help for the prediction of the shelf-life of products and the assessment of the influence of technological steps on the pigment fractions resulting in more consumer friend processing methods. Furthermore, the qualitative determination and identification of the pigments may contribute to the establishment of the provenance of the product. The unique separation capacity of liquid chromatographic (LC) techniques makes it a method of preference for the analysis of pigments in any complicated accompanying matrices. * an overview of the latest developments in the field * a critical evaluation of results from this form of analysis * a comparison of the various LC (liquid chromatographic) separation techniques * future trends in the LC analysis of pigments




The Materiality of Color


Book Description

The purpose of this essay collection is to recover color's complex and sometimes morally troubling past. By emphasising color's materiality, and how it was produced, exchanged and used, contributors draw attention to the disjuncture between the beauty of color and the blood, sweat, and tears that went into its production, circulation and application as well as to the complicated and varied social meanings attached to color within specific historical and social contexts.




Renewable Dyes and Pigments


Book Description

Renewable Dyes and Pigments takes an interdisciplinary approach to bridging the gap between established knowledge of traditional natural dyes and pigments and their emerging aspects in various rapidly growing industrial sectors. Research into new natural dye and pigment sources along with the discovery of sophisticated instrumentation and technology for their processing, characterization, and applications has greatly assisted in widening their scope in various advanced application disciplines is covered, along with information on a number of synthetic dyes and their detrimental effects on the environment and associated allergic, toxic, carcinogenic, and harmful responses. Amidst growing environmental and health concerns, eco-friendly, non-toxic dyes and pigments from renewable materials have re-emerged as a potential viable, sustainable option as an alternative or co-partner to synthetic compounds. This book covers a wide range of topics related to the chemistry and applications of natural dyes and pigments, with an emphasis on recent technological developments in textile dyeing, the food sector and the use of natural pigments in dye-sensitized solar cells, and more. Covers sources, chemistry and processing of dyes and pigments from renewable sources using advanced techniques Summarizes technological developments in textile dyeing and their potential applications in other demanding sectors Examines and discusses the future of renewable dyes and pigments and outlines the major challenges in creating products and materials for textile, food and DSSC applications