Teaching Methodologies
6.1TEACHING METHODS
The methodological options leading to the fulfilment of the curricular unit’s program will focus on the following pedagogical strategy:
– oral presentation oriented to the estimated contents;
– work developed under the teacher guidance.
6.2EVALUATION METHODS
Given the specificity of this curricular unit, the student must guarantee a minimum presence in 42 contact hours (classes), with the right to take an exam, in case he/she has not been approved by continuous assessment.
The work to be carried out will comply with criteria that will be explained in the statements and/or other elements presented, according to the following components and weights:
CONTINUOUS EVALUATION
– Exercise 1 – 15% weight in the assessment;
– Exercise 2 – 35% weight in the assessment;
– Exercise 3 – 50% weight in the assessment
EXAM
– Component Theoretical-practical – 50% of the evaluation
– Component practical – 50% of the evaluation
Learning Results
3.1.Recognise processes for introducing colour into textile articles.
3.2.Reproduce pre-treatment operations.
3.3 Recognize dyeing techniques.
3.4.Identify class of dyes and adjust the dyeing method.
3.5.Apply different dyeing processes (depletion, impregnation).
3.6.Identify and use new technologies, new processes and special effects.
Program
4.1. General notions of organic chemistry
4.2.Color formation
4.3. History of dyes from natural dyes to synthetic dyes
4.4. Classification of dyes by application classes
4.5. Relationship between the chemical structure of dyes and dyeing properties
4.5.1. Relationship between fiber structure and dyeability
4.5.2.Reaction of dye with water
4.5.3. Dyeing mechanism
4.6. Study of factors that influence the state of equilibrium
4.7. Dyeing kinetics
4.8.Migration
4.9.Compatibility
4.10. Dye strength
Curricular Unit Teachers
Grading Methods
- - Exercise 1 - 15.0%
- - Exercise 3 - 50.0%
- - Exercise 2 - 35.0%
Internship(s)
NAO
Bibliography
Abrahart, E. (1977). Dyes and their intermediates. Londres: Edward Arnold.
Allen, R. (1971) Color Chemistry. Escócia: Thomas Nelson & sons, ltd.
Gomes, J. (1999). Estrutura e Propriedades dos Corantes.
Paul Rys, P. & Zollinger, H. (1972). Fundamentals of the Chemistry and Application of Dyes. Canada: John Wiley & Sons, Lda.
Shore, J. (1995). Cellulosics Dyeing. Inglaterra: Society of Dyers and Colourists.