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Lecturer(s)
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Lenfeldová Irena, Ing. Ph.D.
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Course content
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Lectures: 1. Characterisation of warp knitting technology and preparation of the threads and other materials, principles of warping for that warp knitting technology. 2. Characterisation and types of the warp knitted machines. 3. Loop forming elements of simple and double needle bar tricot machines, loop-forming process. 4. Loop forming elements of raschel machines. 5. Loop forming elements with compound needle warp knitting machines. 6. Principles of driving devices and control of the loop forming elements. 7. Programming devices of the warp knitting machines. 8. Yarn feeding, positive and negative let-off mechanisms. 9. Fabric take-up devices and controlling equipments of the warp knitting machines. 10. Basic warp knitted structures. Double and triple lapping bars structures. 11. Patterning principles of the warp knitting machines (fall plate, cut presser, etc.). 12. Warp knitted structures with the weft insertion, applications. 13. Patterning with the Jacquard pattern devices, new trend. 14. Warp knitted technical textiles, applications. Practice: 1. Verification of the warping bases and principles in the laboratory workshop. 2. Materials used for warp knitting. Basic warp structures. Principles of technical writing. 3. - 5. Double and triple lapping bars structures. Knitting notations. Areas of applications and analysis of of knitted fabric samples. 6. - 8. Parts of warp knitting machines - work in the laboratory. 9. - 11. Seminar report on the chosen topic 12. - 14. Jacquard patterning with the software DesignScope Victor Raschel.
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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), Demonstration, Project teaching
- Class attendance
- 56 hours per semester
- Semestral paper
- 20 hours per semester
- Home preparation for classes
- 28 hours per semester
- Preparation for exam
- 40 hours per semester
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Learning outcomes
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This subject improves your knowledges in the area of the warp knitting technology. Firstly it is necessary to prepare of materials for warp knitting (especially technology of warping). The knitting elements and the course formation are explained with the videos and animations. The other devices (yarn feeding, driving, fabric take-up and batching, programming, etc.) are included into lectures too with the description of the using of the ground and pattern guide bars. The principles of the jacquard devices and the jacquard warp knitting structure are explained and it is showed the methods of jacquard guide bars arranging. At the end of warp technology the principles of weft insertion and producing of the multiaxial warp knitted fabrics are making clear.
Student orients himself in area of warp knitting. He knows warp knitting machines, standard and special technologies of production of warp knitted fabric, their pattering. He gains a summary of structure of warp knitted fabrics.
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Prerequisites
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Exam from subject Knitting. Knowledge of knitting patterns is necessary.
KTT/PLT
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Assessment methods and criteria
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Oral exam, Student's performance analysis, Oral presentation of self-study
Credit: Presentation and defense of project work. Distance form: Active participation with the lecturer in the distance form within the assigned topics, elaboration of the assignment of the relevant topics assigned by the distance form. Submission of assignments and project work by the end of the semester according to the TUL schedule. Examination: written and oral.
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Recommended literature
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KETTENWIRK - PRAXIS, TEXTILE NETWORK, TECHNICAL TEXTILES..
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Manual of software DesignScope Victor Raschel..
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DANĚK, V. Stroje a technologie osnovního pletení, skriptum VŠST.. Liberec: Vysoká škola strojní a textilní, 1984. ISBN 55-323-83.
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KOČÍ, V. Vazby pletenin. Praha: SNTL - Nakladatelství technické literatury, 1980. ISBN 04-825-80.
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KOVAŘÍKOVÁ, M. Vazby a rozbory pletenin. SNTL 1987..
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SOVADNÍK, F. Technologie osnovního pletení, SNTL 1982..
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SPENCER, D. Knitting technology (a comprehensive handbook and practical guide) Cambridge, 2001..
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