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Lecturer(s)
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Havelka Antonín, doc. Ing. CSc.
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Zelová Katarína, Ing. Ph.D.
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Course content
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Lectures: 1. The joining process in the clothing industry, quality requirements. Methods of joining clothing materials. 2. Development of clothing materials. Function of clothing, aspects influencing dressing. Relationship between human - clothing - environments. 3. Requirements for clothing materials, utility properties of clothing materials. 4. The classification of fabrics in accordance with the use, types of clothing materials. 5. Processing the properties of clothing materials: spreading, cutting, pressing, formation of clothing materials. 6. Sewing of clothing parts, sewing process, the theory of sewing process. 7. Properties of sewing threads, quality of sewing threads in terms of utility and technological properties. 8. Fusing process. Quality control of fused parts, testing, fusing methods. 9. Seam: evaluation of mechanical properties. The theoretical seam strength. Cross and longitudinal breaking seam strength. 10. Ultrasonic welding. Physical fundamentals: sound, ultrasound, infrasound. Principle of ultrasonic welding, requirements on the composition of textile materials for ultrasonic welding, machines, use. 11. High frequency welding. 12. Hot wedge welding and hot air welding. 13. Hot air welding seam sealing: principle, welding parameters, machines, types of tapes, new possibilities of using tapes on garments. 14. Adhesive bonding and other joining methods: riveting, zippers, Velcro fastening. Type of zippers and Velcro fastening, testing, principles of these mechanical joints. Practice: Introduction, exercise program, occupational safety, the conditions for obtaining credit. Research, experiment, presentation. Standards for clothing materials and products. Classification of clothing materials. Characteristic of clothing materials and sewing thread - laboratory works. Analysis of standards. Laboratory practice: Specification of the parameters of textile materials depending on the end use. Laboratory practice: Wrinkling of fabric, comparison of two methods. Laboratory practice: Air permeability of textiles. Laboratory practice: Snarl formation v of sewing threads. Laboratory practice: Evaluation of mechanical properties of seams, seam strength. The strength of the seam, testing, the strength of the longitudinal seam, the strength of the cross seam, the effectiveness of the seam. Practical exercise: Ultrasonic welding of fabrics Practical exercise: Hot wedge welding of fabrics Practical exercise: Hot air welding, seaming, high-frequency welding. Presentation of protocols. Credit.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Laboratory work, Lecture, E-learning
- Class attendance
- 56 hours per semester
- Preparation for laboratory testing; outcome analysis
- 24 hours per semester
- Preparation for exam
- 40 hours per semester
- Home preparation for classes
- 30 hours per semester
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Learning outcomes
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Subject Sewing process provides students with basic knowledge in the areas of requirements and features clothing, sewing thread used for the manufacture of clothing, unconventional methods of textile. The aim of the course is to familiarize students with the principles of the conventional method of textile sewing and unconventional methods of joining. Students will understand the basic principles of welding by ultrasonic, high frequency, hot wedge and hot air welding or riveting or gluing with a taping tape. They will be able to discuss methods influence the joining properties of fabrics with a link to the final quality of the garments. Based on the knowledge they can assess the different bonding techniques and propose their use in the new clothing and products production. Special attention will be paid to the characteristics of new types of sewing thread.
Students will acquire knowledge from the area of this subject.
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Prerequisites
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Unspecified.
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Assessment methods and criteria
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Combined examination
Credit: Passing the laboratory exercises. Elaboration of a laboratory works and their proving. Presentation of protocols. Examination: written and oral
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Recommended literature
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DOSEDĚLOVÁ, I. technických konfekcí, charakteristiky spojů a jejich vlastností.. TUL, 2004.
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EBERLE,H. Clothing technology.. Europa Lehrmittel Verlag, 2008. ISBN 13: 978- 38085622.
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FUN, J. YU., HUNTER, L. Clothing appearance and fit: Science and technology.. Cambridge England: Woodhead Publishing Ltd, 2004. ISBN 1-8557.
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HAAS, V. Oděvní stroje a zařízení. Praha: SNTL, 2000. ISBN 80-86073-572.
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HAVELKA, A., HALASOVÁ, A. Tepelné a vlhkotepelné tvarování v konfekci. [skriptum] Technická univerzita v Liberci. Liberec, TUL, 2003. ISBN 80-7083-713-6.
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JONES, I., STYLIOS, K. Joining textiles-principles and applications.. Woodhead publishing series in textiles, number 110, 2013. ISBN 978-1-84569-627-6.
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KIBÍK, J., GŘUNDEL, F., a kol. PVC: výroba, zpracování a použití.. Praha: SNTL, 1958.
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MOTEJL, V., TEPŘÍK, O. Šicí stroje v oděvní výrobě. SNTL Praha, 1974.
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ZOUHAROVÁ, J. Výroba oděvů II. díl. skriptum TU Liberec, 2004. ISBN 80-7083-782-9.
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