Dyes and Pigments - Insights and Applications


Book Description

Dyes and Pigments - Insights and Applications provides a comprehensive overview of recent developments in dyes, pigments, and their intermediates. It presents the latest research efforts by international authors, opening new possible research paths for further novel developments. Chapters discuss the chemical constituents, spectroscopic aspects, surface, solution, crystal formation, photochemical, and ecological and biological properties of dyes and pigments.




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.




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.




Colour Chemistry


Book Description

This book provides an up-to-date insight into the chemistry behind the colour of the dyes and pigments that make our world so colourful. The impressive breadth of coverage starts with a dip into the history of colour science. Colour Chemistry then goes on to look at the structure and synthesis of the various dyes and pigments, along with their applications in the traditional areas of textiles, coatings and plastics, and also the ever-expanding range of "high-tech" applications. Also discussed are some of the environmental issues associated with the manufacture and use of colour. The broad and balanced coverage presented in this book makes it ideal for students and graduates. In addition, many specialists in industry or academia will also benefit from the overview of the subject that is provided.




Handbook on Natural Pigments in Food and Beverages


Book Description

Handbook on Natural Pigments in Food and Beverages: Industrial Applications for Improving Color, Second Edition focuses on a color solution for a specific commodity, providing food scientists with a one-stop, comprehensive reference on how to improve the color of a particular food product. The book includes two new chapters that highlight the physical and biological fundamentals of color, as well as the specific use of curcumin and carthamin. Sections focus on specific industrial applications of natural colorants, with chapters covering the use of natural colorants in a variety of products. Other sections highlight technical formulation and potential health benefits of specific colorants. Various pigments which can be used to effectively color food and beverage commodities are presented with information on safety and testing throughout. - Provides a fully revised and updated resource on current regulatory standards and legislation - Includes new chapters on both emerging ingredients and the latest technologies - Focuses on the use of natural food colorants by specific product category per chapter rather than one pigment class per chapter - Contains a current and comprehensive overview of product-specific coloration approaches




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.




Metal-Free Synthetic Organic Dyes


Book Description

Metal- Free Synthetic Organic Dyes is a comprehensive guide to the synthetic, organic dyes that are classified by their chemical structure. As synthetic dyes are playing an increasingly important role in modern life, with applications in both industry and scientific research, this book provides insights on the many research attempts that have been made to explore new photosensitizers in the development of dye sensitized solar cells (DSCs). These novel photosensitizers have incorporated, within their structure, different organic groups, such as coumarins, cyanines, hemicyanines, indolines, triphenylamines, bis(dimethylfluorenyl) aminophenyls, phenothiazines, tetrahydroquinolines, carbazoles, polyenes, fluorenes, and many others. This comprehensive resource contains color figures and schemes for each dye discussed, and is an invaluable resource for organic, inorganic and analytical chemists working in academia and industry. - Features a discussion of the synthesis of the new, high-value synthetic dyes and pigments and their applications and performance - Includes coverage of new photosensitizers and their role in the development of dye sensitized solar cells (DSCs) - Covers synthesis of the functional dyes that are ideal for applications in the dye and pigment industry, textiles, color science, solar energy materials and solar cells, biomedical sensors, advanced materials, structure and synthesis of materials, and more




Chemistry and Technology of Natural and Synthetic Dyes and Pigments


Book Description

This book on ‘Chemistry and Technology of Natural and Synthetic Dyes and Pigments’ is a priority publication by IntechOpen publisher and it relates to sustainable approaches towards green chemical processing of textiles, specifically on dyeing with natural dyes and pigments as well as dyeing with eco-safe synthetic dyes and chemicals. This book includes the following chapters: an introductory editorial chapter on bio-mordants, bio-dyes and bio-finishes, a review of natural dyes and pigments and its application, pantone-like shade generation with natural colorants, colour-based natural dyes and pigments, printing with natural dyes and pigments, functional property and functional finishes with natural dyes and pigments, eco-safe synthetic dyes and chemicals, and a miscellaneous review on dyed textiles and clothing including natural dye-based herbal textiles.This new book is expected to be useful for dyers of the textile industry as well as to the future researchers in this field.




Advances in Dye Degradation


Book Description

This series provides information on the nature of dyes, their harmful effects, and dye degrading techniques. The first volume of this series presents a fundamental concept of dye degradation. The information on target-oriented dye mitigation is intended to give readers a better understanding of the dye degradation process to sustain a healthy environment. Chapters present referenced information and highlight novel breakthroughs in the industry. Key topics: Foundations of Dye Knowledge: Evaluating Toxicity Nanotechnology Electrochemistry Catalytic Materials and Photocatalysis Microbial Biodegradation This book serves as a foundational resource for researchers and students in chemistry and chemical engineering courses. It also serves as a reference for industry professionals who work with chemical dyes (for example in textile and plastic industries) and are engaged in the critical field of environmental remediation. Readership Scholars in chemistry and chemical engineering; professionals in manufacturing industries and environmental sustainability. Series Intro This series provides information on the nature of dyes, their harmful effects, and dye degrading techniques. Each volume will bring a collection of edited topics on dye degradation. The goal of the series is to provide readers with detailed knowledge about dye degradation. The editors also aim to give a broad perspective on the role of dye remediation technologies in creating a sustainable environment.




Handbook for Chemical Process Industries


Book Description

Chemical processing industry plays a pivotal role in the economy of a country, as chemicals are required in every sphere of our lives. This book covers chemical processing of dyes, pigments, drugs and pharmaceutical products, fermented products, agrochemicals, explosives, polymers, Period II and III chemicals, chemicals, sugar, coatings, starches, soaps and detergents, paper, pulp, glass, and cement. It includes sources of natural materials, collection process, purification, and extraction of different chemicals from natural materials like petroleum, coal and ores from the Earth. It includes manufacturing details of C1 to C4 and aromatic compounds obtained from natural materials. The book covers both traditional and modern sectors of the chemical processing industry. It provides knowledge on the properties of the chemical and manufacturing process (such as raw materials, chemical reactions, quantitative requirement, flow sheet diagram, procedure) and its uses. The book is based on the author's expertise and has been developed with an awareness of the quantitative requirement for manufacturing chemicals. Data has been collected from industry, thus it will be useful to industry personnel, research groups, academicians and institutional organizations.