tailieunhanh - The influence of knitting structure on mechanical properties of weft knitted fabrics

Various combinations of stitches, tucks, and floats give also different width and length of knit. The goal of this study is to investigate the influence of different knitting structure elements and their position in the knit on deformation properties of plain weft-knitted fabrics. | ISSN 1392-1320 MATERIALS SCIENCE MEDZIAGOTYRA . Vol. 16 No. 3. 2010 The Influence of Knitting Structure on Mechanical Properties of Weft Knitted Fabrics Daiva MIKUCIONIENẺ Ricardas CIUKAS Agnẻ MICKEVICIENẺ Department of Textile Technology Kaunas University of Technology Student 56 LT-51424 Kaunas Lithuania Received 25 February 2010 accepted 15 May 2010 In various knitting structures knitted fabrics are characterized in different extensibility in a course and wale directions and maximum force to rupture. Various combinations of stitches tucks and floats give also different width and length of knit. The goal of this study is to investigate the influence of different knitting structure elements and their position in the knit on deformation properties of plain weft-knitted fabrics. An investigation was carried out with the fabrics knitted on a basis of rib 1xf rib 2x2 and rib 1x1x1x2 on a flat V-bed knitting machine in a gauge 10E. It has been established that extensibility and strength of the knitted fabrics are immediately concerned with knitting structure. In case of transverse deformation the maximum elongation and strength characterized knitted fabrics which have in a structure just stitches or in different order ranged stitches and short floats. In case of longitudinal deformation the maximum elongation and strength characterized knitted fabrics which have in a structure tucks. Keywords weft-knitted fabric knitting structure deformation extensibility strength. 1. INTRODUCTION Special claims are raised for knitted fabrics used for technical applications. In comparison with woven fabrics knitted fabrics have much more extensibility particularly in a transverse course direction. The structure of knitted fabric is a system of yarns bent out into stitches. Integrity and a friction of a yarn stretching stitch by stitch determine the form of a knitted fabric stitch. The friction appears because of stitches interdependent relations. The ties of the second type are .

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