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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. History aspect of the knitting and their influence on the modern knitted machines. 2. Characterization of weft and warp knitting machines. 3. Functions of weft and warp knitting machines. 4. Theory of pattering knitted fabrics. 5. Linking-on additional yarn or inlay. 6. Knitting of links-links pattern with using V-bed flat knitting machines. 7. Patterning mechanisms of knitted machines, The Shima Seiki electronic selection system. 8. Simulation of real knitted fabric, visualization. 9. Small circular diameter machines and their principles and machines with knitting and others mechanisms. 10. Geometrical and deformation characteristics of knitted fabrics, their measurement and evaluation. Energy changes during deformation of the fabric. 11. Evaluation of quality of knitted fabrics, unevenness of knitted fabric. Friction of flat textiles. Experimental detection of frictional resistance. 12. Mechanics of knitting processes. The working speed of knitting machines and its optimization. 13. The working mechanism of knitting machines (theory of thread lapping and clearing, the force balance of mechanism of needle moving) 14. Unorthodox knitting principles warp and weft technology. Practice: 1.- 2. Pattern possibilities and design of structures for warp knitted machines in laboratory. Relation between knitting machine gauge and linear density of yarn. Calculation of geometrical parameters of knitting fabrics. 3.- 4. Impact of machine adjusting on structure and properties of knitted fabrics (geometrical and mechanical). Efficiency of knitting machines. Setting of the knitting machine and measuring the parameters of knitting mechanism and take-off mechanism. 5. - 6. Patterning system SDS - ONE of flat knitting machine Shima Seiki. 7. - 8. The Shima Seiki electronic selection system of flat knitting machine. 9. - 12. Design and patterning your own weft knitted structure (product) with using of SDS - ONE (semester work). 13. Pattern realization on the knitting machine Shima Seiki. 14. Final presentation of your semester work with designed pattern.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Project teaching
- Class attendance
- 56 hours per semester
- Home preparation for classes
- 28 hours per semester
- Semestral paper
- 35 hours per semester
- Preparation for exam
- 42 hours per semester
- Presentation preparation (report)
- 10 hours per semester
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Learning outcomes
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The aim of this course is to acquaint students with: Functions of knitting machines and its characterisation; Theory of fabric patterning; Properties of knitted fabrics; Friction in yarns and knitted fabrics; Mechanics of knitting processes and capacity of knitting machines. Small circular diameter machines and their principles and machines with knitting and others mechanisms. Several animation of formation of inturned welt, toe closing system and cam animation explains this technology with the best way.
Extension of knowledge from field of knitting, expecially properties of knitted fabrics, friction in yarns and knitted fabrics, mechanics of knitting processes.
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Prerequisites
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Basic knowledge from fields of knitting, mechanics and mathematics.
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Assessment methods and criteria
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Oral exam
Credit: Presentation and defense of project work. Distance form: Active participation with the lecturer 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 15.1.2021. Examination: written and oral.
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Recommended literature
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David J. Spencer. Knitting Technology. Cornwall. England..
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