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Lecturer(s)
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Kolčavová Sirková Brigita, doc. Ing. Ph.D.
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Mertová Iva, Ing. Ph.D.
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Ježík Karol, Ing.
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Course content
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Lectures: 1.-3. Possibilities in threads interlacing (dobby and jacquard fabric), basis characterisation of weave techniques, CAD systems for woven fabric construction 4.-6. Planar geometry of woven fabric, threads position in weave (interlacing part and float part) definition of basic parameters of fabric construction. Definition of fabric geometry for plain and non-plain weaves, deformation of thread in cross section, definition of binding weave, individual fazes of interlacing 7.-10. Spatial geometry of woven fabric, waviness of individual threads. Influence of fabric structure on mechanical properties. Influence of fabric structure on end-use properties - crimp, roughness, ear permeability, thickness, etc. 11. Modelling and prediction of planar covering of woven fabric 12. Modelling and prediction of threads crimp of woven fabric 13. Modelling and prediction of thickness of woven fabric 14. Modelling and prediction of geometrical roughness of woven fabric Practices: 1.-3. Construction of woven fabric (dobby and jacquard). CAD systém DesignScopeVictor EAT. 4.-5. Software ProTkaTex - compatibility with DesignScopeVictor EAT. 6. Semester project work I, II. Measuring of mechanical and end-use properties of jacquard fabric weaved in weaving-lab KTT. 7.-13. Realization of project I, II. 9. Presentation of the project I, II.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Dialogue metods(conversation,discussion,brainstorming), Self-study (text study, reading, problematic tasks, practical tasks, experiments, research, written assignments), Written assignment presentation and defence, Demonstration, Project teaching, Individual creative and artistic activities, Group consultation, Individual consultation, Lecture, Practicum, Students' portfolio
- Presentation preparation (report)
- 15 hours per semester
- Home preparation for classes
- 24 hours per semester
- Individual project
- 30 hours per semester
- Preparation for exam
- 45 hours per semester
- Class attendance
- 56 hours per semester
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Learning outcomes
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Within this subject students obtain information about these areas: construction and design of woven fabrics, influence of input fabric parameters on fabric structure as well as on weaving process and final mechanical and end-use properties. Students obtain information about areal and spatial geometry of woven fabric, analysis internal position of individual threads in plain weave and other different interlacing, definition of float part in weave. Information and definition of waviness, threads crimp, definition of fabric geometry on the basis of transversal and longitudinal cross section.
Orientation in these fields: structure and fabric geometry, interlacing of threads and their fabric geometry definition, fabric structure versus fabric properties.
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Prerequisites
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Knowledge of weaving, yarns structure, mathematics.
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Assessment methods and criteria
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Oral exam, Practical demonstration of acquired skills, Presentation of acquired knowledge via paper
Credit: Active participation in practices and lectures, realization, elaboration and presentation of project works focused on fabric construction, measurement of selected properties and subsequent prediction and modeling of fabric properties. Distance form: Active participation with the teacher in the distance form within the assigned topics, elaboration of the assignment of the relevant topics assigned by the distance form. Exam: oral.
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Recommended literature
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Webové stránky světoznámých výrobců tkacích strojů, žakárských prošlupních mechanizmů tkacích strojů (https://www.bonas.be/en https://www.staubli.com/cs-cz/textile/textile-machinery-solutions/ ; www.karlmayer.com https://www.lindauerdornier.com/en/ http://www.picanol.be/en ; www.knotex.de) a CAD systému pro přípravu a zpracování předlohy listové a žakárské tkaniny (http://www.designscopecompany.com/)..
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BEDNÁŘ, V., SVATOŠ, S. Vazby a rozbory tkanin I.. Praha: SNTL, 1980.
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DUFEK, J. Vazby žakárských tkanin - textová a obrázková část. Praha: SNP, 1967.
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HU, J. Structure and mechanics of woven fabrics. Cambridge: Woodhead Publishing, 2004. ISBN 0-8493-2826-8.
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NECKÁŔ, B. Morfologie a strukturní mechanika obecných vlákenných útvarů. Liberec: Technická univerzita v Liberci, 1989. ISBN 80-7083-318-1.
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NECKÁŘ. B., DAS. D. Theory of structure and mechanics of fiber assemblies. New Delhi: Woodhead Publishing India, 2012. ISBN 978-1-84569-791-4.
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NOSEK, S. Struktura a geometrie tkanin. Ústí nad Orlicí: Výzkumný ústav bavlnářský, 1974.
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