CHEMISTRY AND TECHNOLOGY OF THE TEXTILE INDUSTRY
- Overview
- Assessment methods
- Learning objectives
- Contents
- Full programme
- Delivery method
- Teaching methods
- Contacts/Info
Basic knowledge of general chemistry, organic chemistry and polymers.
Students will undergo an oral test, in which will be evaluated their knowledge of the subject and their capability of make connections between different arguments.
Students will have to become aware of the indispensable role of chemistry in the production of textiles, in a current context increasingly based on the use of renewable materials, while respecting human health and the environment. Students will therefore have to possess the basic knowledge to assess the environmental impact of textile processing.
Even in this time of crisis, textile industry remain a leading sector of the Italian economy, and Made in Italy is synonymous with excellence all over the world. This sector uses specialized skills, which derive from a legacy of centuries and which are constantly renewed by applying the most recent innovations in the technological and chemical fields. Attention to sustainability is essential: the use of natural or recyclable fibers, the use of natural dyes, environmental certifications. The uses of new technologies (plasma, nanotechnologies, smart textiles) will be explored.
The main phases that characterize the textile finishing chain will be described through a chemical point of view applied to industrial practice, starting from the study of the materials, then moving on to the different processes (dyeing, printing, finishing) to which textiles can be subjected. This courser will allow the students to better understand what lies behind the garments we wear every day, and the reason for some of their characteristics. The aim of this course is to deepen the processes related to the Textile Supply Chain, with particular reference to the Nobilitation processes.
FIRST CHAPTER: MATERIALS
1. Fibers: mechanical properties, chemical properties, chemical composition. Natural fibers (wool, silk, cotton, linen); man-made fibers (viscose, rayon cupro, acetate); synthetic fibers (PES, acrylic, PA, elastomers, microfibers)
2. Surfactants: surface tension, chemical classification, uses and properties
3. Dyes: chemical classification, synthesis, main dye classes. Natural dyes: sources, extraction and applications
SECOND CHAPTER: PROCESSES AND TECHNOLOGY
4. Pre-dyeing operations on cellulosic fibers, wool, silk and synthetic fibers
5. Natural dyes: history, natural sources, how to dye natural, evaluation of their use under both an economic and sustainability point of view.
6. Dyeing process: kinetic and thermodynamic considerations, main factors that influence dye results, dyeing of main fibers with different dye classes
7. Textile printing: classification of traditional printing methods and Inkjet printing
8. Finishing operations: mechanical, chemical, dry and wet processes, specific finishing for flame resistant, waterproof and windproof properties
9. Colour theory: light sources, interactions between light and matter, the eye and spectrometer, main colour spaces
10. Textile resistance: resistance to washing, water, light, rubbing, sweat
THIRD CHAPTER: INNOVATION
11. Innovation in the textile industry: new materials and technologies
12. Sustainability, environmental issues, International statements
The course will take place as in-class lessons, with discussion of case studies related to the main textile brands. Possible visits to textile companies.
for further informations ask the professor filippo.brusa@uninsubria.it