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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. Basic warp knitted structures and open-work structures. Single and double needle bar structures. Principles of technical writing. 2. Preparation of the threads and other materials for warp knitting technology. Principles of warping for that warp knitting technology. 3. Characterization of warp knitting technology and classes of the warp knitting machines. 4. Loop forming elements of simple and double needle bar machines with latch and compound needles. 5. Principles of driving devices and programming devices of the warp knitting machines. 6. Yarn feeding and delivery to the knitting mechanisms. 7. Fabric take-up devices and controlling equipment of the warp knitting machines. 8. Patterning principles of the warp knitting machines. 9. Patterning with the Jacquard pattern devices (curtains and laces). 10. Special patterning for warp knitting fabric (plush and Laying-in or weft insertions fabrics). Practices: 1. Materials used for warp knitting. Basic warp structures. Principles of technical writing. 2. Double and triple lapping bars structures. Structure analyse. 3. Verification of the warping bases and warp knitting principles in the laboratory workshop. 4. Warp knitted fabrics with holes - filet patterning possibilities. 5. Marquiset and tulle, the principle of underlapping. 6.-7. Design of warp knitting fabric for knitting machine (individual assignment) - laboratory workshop. 8.- 9. Machine setting for knitting of individual structures and their realization - laboratory workshop. 10. Structure analyse of warp knitting fabrics (individual assignment).
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Learning activities and teaching methods
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Demonstration, Working activities (workshops), Group consultation, Individual consultation, Lecture, Practicum, Students' portfolio, Students' self-study
- Class attendance
- 40 hours per semester
- Semestral paper
- 30 hours per semester
- Home preparation for classes
- 20 hours per semester
- Preparation for credit
- 30 hours per semester
- Preparation for exam
- 45 hours per semester
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Learning outcomes
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This subject focus for the warp knitting technology and follows on the subject Knitting. Students deepen their knowledge which related to the warp knitted patterns and their constructions. The subject is to describe students with the preparing of materials and operations for warp knitting, Construction of warp knitting machines (especially knitting mechanisms and patterning devices), with their characteristics and applications. Basic principles of production warp knitted fabric for technical requests are included into the content.
Basic orientation in the production of warp knitting fabrics for clothing and technical applications. Specification and analysis of warp knitting structures, possibility of their production in the current portfolio of produced warp knitting machines. Characteristics of warp knitting machines and warp knits for technical purposes, their application and patterning possibilities for warp knitting.
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Prerequisites
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Basic knowledge of knitting principles and knitting structures at the level of subject TT1 - Textile Technologies.
KTT/PL
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Assessment methods and criteria
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Combined examination
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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časopis KETTENWIRK - PRAXIS, Karl Mayer..
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Soubor českých přednášek na https://elearning.tul.cz/.
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Webové stránky výrobců pletařských strojů a pletařských elementů (http://www.karlmayer.com/; http://www.rius-comatex.com/; https://www.mueller-frick.com/; https://www.groz-beckert.com/;).
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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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HORROCKS, A.R, ANAND, S.C. Handbook of technical textiles, Volume 1, Technical textile processes. Second edition.. Amsterdam: Woodhead Publishing, 2016. ISBN 978-1-78242-458-1.
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MAJER, V., VOTÁNEK, V. Vazby osnovních pletenin. 2. vydání.. Praha: SNTL - Nakladatelství technické literatury, 1970. ISBN 04-811-70.
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SOVADNÍK, F. Technologie osnovního pletení. Praha: SNTL - Nakladatelství technické literatury, 1982. ISBN 04-831-82.
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WEBER, M., WEBER, K. Wirkerei und Strickerei. Deutscher Fachverlang GmbH, 2014. ISBN 978-3-86641-299-6.
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