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Lecturer(s)
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Vik Michal, prof. Ing. Ph.D.
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Viková Martina, doc. Ing. Ph.D.
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Šašková Jana, Ing. Ph.D.
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Course content
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Lectures: 1. Basic conception. Bath ratio. Deepness of coloration. Wet added-weight. Basic parameters of PES, PA, PAN, POP, wool and cotton. 2. Specification of dye classes for dyeing of textile fibers. Bath dyeing and pad dyeing. 3. Levelness. Influence of temperature variations on levelness. Influence of inhomogeneity of textile substrate on levelness. Bath flow and levelness. Levelness agents. 4. Colour fastness and their valuation. 5. Spectrophotometric determination of dye concentration in fibre. Lambert-Beer law. Objective measuring of colour difference using CIE method. Shade, deepness, brightness. Triangle of dyes. 6. Textile wetting and washing. Basic characteristic of surfactants. Washing machines. 7. Desizing. Scouring. Bleaching. Optical brighteners. 8. Direct dyes, reactive dyes, vat dyes. Semi-continuous and continuous dyeing processes. 9. Padders, microcoating, spray. Pressure dyeing machines.Jet. Overflow. 10. Basic principles of textile printing, division of printing techniques and their comparison. 11. Printing of cotton, wool and synthetic fibres. 12. Printing machines. 13. Mechanical finishing. 14. Chemical finishing. Easy- care finishing. 15. Cemical finishing. Water-repellent finishes, flame-retardent finishes, oleophob finishes. Technology and evaluation. Laboratory training 1. Textile pretreatment Desizing, scouring and bleaching.of cotton. 2. Textile dyeing Direct dyes. 3. Textile dyeing a) PA dyeing b) Blokování a kombinovatelnost kationtových barviv 4. Texile printing Direct printing, print pastes White discharge and chemical resist printing. 5. Final finishing a) Easy care finish b) Finishes for better hand c) Water-repellent finish
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Learning activities and teaching methods
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Laboratory work, Lecture
- Class attendance
- 70 hours per semester
- Class attendance
- 16 hours per semester
- Home preparation for classes
- 55 hours per semester
- Preparation for laboratory testing; outcome analysis
- 20 hours per semester
- Preparation for comprehensive test
- 20 hours per semester
- Preparation for exam
- 40 hours per semester
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Learning outcomes
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The main task of this course is to introduce students to basic finishing operations such as pre-treatment, coloration, printing and also final finishing. This course presents ways how with these finishing procedures one can improve the properties of materials and also their utility value and to create the competitive product. Other main focus of this course is also ecological aspects and discussion on actual trends, such as nanocoating, nanoparticles and multifunctional treatment.
Knowledge lectured subject - theoretically and practically.
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Prerequisites
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Basic knowledge of chemistry.
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Assessment methods and criteria
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Combined examination
The credit: Finishing on all laboratory exercises. Elaborate and defence laboratory records. Finishing on knowledge test over fix limit of point figure. The examination: be composed of written and vive part.
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Recommended literature
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Kryštůfek J. a kol. Textile Dyeing Theory and Applications. TU Liberec, 2013. ISBN 978-80-7494-031-6.
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Pastrnek R., Vlach P. Barvení rostlinných vláken. TU Liberec, 2002.
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Pastrnek R., Vlach P. Barvení živočišných vláken. TU Liberec, 2002.
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Pastrnek R., Vlach P. Finální úpravy textilií. TU Liberec, 2002.
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Rouette H., K. Encyclopedia of Textile Finishing. Springer, 2002.
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