Transcription of Textile Dyes: Dyeing Process and Environmental Impact
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Textile Dyes: Dyeing Process and Environmental Impact
Chapter 6 Textile Dyes: Dyeing Process and Environmental ImpactFarah Maria Drumond Chequer,Gisele Augusto Rodrigues de Oliveira,Elisa Raquel Anast cio Ferraz,Juliano Carvalho Cardoso,Maria Valnice Boldrin Zanoni andDanielle Palma de OliveiraAdditional information is available at the end of the IntroductionDyes may be defined as substances that, when applied to a substrate provide color by aprocess that alters, at least temporarily, any crystal structure of the colored substances [1,2].Such substances with considerable coloring capacity are widely employed in the Textile ,pharmaceutical, food, cosmetics, plastics, photographic and paper industries [3,4]. The dyescan adhere to compatible surfaces by solution, by forming covalent bond or complexes withsalts or metals, by physical adsorption or by mechanical retention [1,2]. Dyes are classifiedaccording to their application and chemical structure, and are composed of a group of atomsknown as chromophores, responsible for the dye color.
Dyeing Process and Environmental Impact Farah Maria Drumond Chequer, ... according to their application and chemical structure, and are composed of a group of atoms ... aryl amine derivatives generated during reductive biotransformation of the azo bond [22].
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