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Learning outcomes |
Fundamentals of color measurement and formulation techniques and color correction. Relationship between the fiber structure and the structure of the dyes.
Knowledge the theoretical bases of dyeing kinetics and equilibrium and infer its importance in dyeing of textile materials. The student should be able to:
1 analyze, interpret and apply the concepts of color measurement, with a view to their implementation in the color reproduction in printing and dyeing;
2 Understand the theoretical foundations of physical chemistry of dyes in order to be able to understand the role of all actors (fiber, dye, chemicals and auxiliaries, pH, temperature, time, etc.) in the process of dyeing and printing of textile fibers and holding its innovation, optimization and control, with a view to quality excellence in economic and technical perspective of industrial operation.
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Syllabus |
1. Definition of Color. Spectrophotometric and colorimetric concepts.
2. CIE colorimetric system. Metamerism. Color differences. CIELAB system. Degree of whiteness. Light sources and illuminants.
3. Color ordering systems.
4. Color reproduction by colorimetric and spectrophotometric. Color correction.
5. Relationship between the chemical and physical structure of the fibers and the structure of the dyes.
6. Dyeing equilibrium: isotherms, affinity, electrical effects and heat of dyeing.
7. Dyeing kinetics: diffusion, velocity, kinetic equations, activation energy, equalization and compatibility.
8. Characterization of the dyeing properties of dyes.
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Main Bibliography |
1) M. Clark, Handbook of textile and industrial dyeing - Volume 1: Principles, processes and types of dyes, Woodhead Publishing, 2011.
2) R. H. Wardman, An Introduction to Textile Coloration: Principles and Practice, Wiley (Society of Dyers and Colorists), 1st ed., 2017.
3) S. M. Burkinshaw, Physico-chemical Aspects of Textile Coloration, Wiley (Society of Dyers and Colorists), 1st ed., 2015.
4) Johnson, The Theory of Coloration of Textiles, Published by the Society of Dyers and Colourists, 2nd Ed, 1989.
5) J. Cegarra; P. Puente e J. Valldeperas, Dyeing of Textile Materials, Textilia, 1992.
6) J. Shore (Editor), Cellulosics Dyeing, Society of Dyers and Colourists, 1995.
7) D. M. Lewis (Editor), J. A. Rippon (Editor), The Coloration of Wool and Other Keratin Fibres, Wiley (Society of Dyers and Colourists), 1st ed., 2013.
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