| Code |
9569
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| Year |
1
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| Semester |
S1
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| ECTS Credits |
6
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| Workload |
PL(30H)/T(30H)
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| Scientific area |
Ciência e Tecnologia Têxteis
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Mode of delivery |
Face-to-face.
Theoretical/Theoretical and Pratical/Lab Pratical.
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Work placements |
Noat applicable.
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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:
-analyze, interpret and apply the concepts of color measurement, with a view to their implementation in the color reproduction in printing and dyeing;
-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 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 fiber structure 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.Principal bibliography:
- Dyeing of Textile Materials , Textilia, J. Cegarra; P. Puente e J. Valldeperas, 1992.
- The Theory of Coloration of Textiles, Alan Johnson, Ed. S. D. C., 1989.
- Analytical Chemistry of Synthetic Colorants, Ed. A. T. Peters and H. S. Freeman, 1995.
- Cellulosics Dyeing, Ed. J. Shore, S. D. C., 1995.
2.Complementary bibliography:
- Bulletin textile international: teinture/ impression/ finissage
- Color: research and application
- Colour index: international
- International textile bulletin: teinture/ impression/ finissage
- Journal of the Society of Dyers and Colourists
- Journal of the textile institute
- Textile chemist and colorist & American dyestuff reporter
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Language |
Portuguese. Tutorial support is available in English.
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