Man-made cellulose fibers (8 ECTS)
When: 19-23 August, 2019
Where: Espoo/Helsinki, Finland
The course offers students the opportunity to develop a good knowledge of the fundamentals and practice of man-made cellulose fiber (MMCF) production. The content of the individual lectures is aligned along the value chain of the textile production.
After a short introduction about the history and the market situation of MMCFs, the focus is placed on the chemistry and technology of the dissolving pulp (raw material) and staple fiber production based on the two major commercial process, the Viscose and the Lyocell processes. In addition, students will get an overview on alternative MMCF processes.
The course provides the fundamentals of cellulose dissolution, characterization of rheological and viscoelastic behavior, the dynamics of polymer chains in solution, structure formation during the regeneration of cellulose fibers. Students can expect to gain a better understanding of cellulose structure and morphology, with a special emphasis on the structure-property-relationship.
The conversion of staple fibers to products that go into making apparel and other textile goods is subject of the final part of the course. Students will learn yarn production, knitting and knitwear, weaving, dyeing and printing technologies, fabric quality and sustainability and gain an outlook on new fabric developments including smart textiles. The dyeing and finishing fundamentals encompass the basic concepts of textile wet processing with emphasis on the tuning of the surface properties with respect to hydrophilicity and hydrophobicity.
Course outline
School: Chemical Engineering, Aalto University
Department: Bioproducts and Biosystems
Level of study: Postgraduate
Participants: PhD students, industrial chemists
Pre-requirements: Master's degree in chemistry, material science, chemical engineering with some pre-knowledge in polymer chemistry
ECTS: 8
Responsible professor: Herbert Sixta
Intended learning outcomes
- Thoroughly know and comprehend the chemistry and technology of dissolving pulp production
- Describe and explain the fundamentals of cellulose dissolution pathways
- Understand the rheological behavior of cellulose solutions and assess the viscoelastic properties of spinning dopes
- Explain the chemistry and technology of the Viscose and Lyocell fiber processes and gain an understanding of novel MMCF processes
- Develop and evaluate analytical methods for process control and the assessment of fiber properties
- Understand the principles of yarn and fabric production, and their application
- Fibers and yarn properties and identification for suitable application
- Compute different dyeing and finishing operations
- Provide an overview on dyestuff chemistry and terminology
- Assess quality characteristics of dyeing and surface treatments Understand the tuning of surface properties
- Combine sustainable apparel production and fashion Produce new research ideas related to MMCF production
Teaching methods
Lectures (face-to-face)
Exercises (optional)
Pitching (optional)
Assessment
Quizzes during each lecture
Advanced review article
Lecturers
Representatives of the Department of Bioproducts and Biosystem (CHEM)
Representatives of the Department of Design (ARTS)
Distinguished experts from the textile industry
Demonstration of Aalto's infrastructure on textile processing
Aalto Bioproduct Centre: Spinning laboratory, yarn processing (CHEM)
Department of design: knitting, weaving, dyeing (ARTS)
Selected demonstration trials (to be defined)
