engleski

The impact of yarns produced by different spinning processes on elongation properties of plain double knit jersey fabrics

More and more yarns are being made in the world that will replace classic cotton yarns produced by the ring spinning system. Single cotton yarns with counts of 14, 16, 20 and 25 tex are often used for underwear production. For a number of reasons the increasing number of population does not cause a proportional increase in the production of cotton yarns. Therefore, yarns are manufactured that will replace or complement cotton yarns in different areas of application. For this study five 20 tex yarns were made which are used for manufacturing weft knitted fabrics from which various lightweight articles of clothing are made, generally with a fabric mass from 120 to 200 g/m2. The yarns were made by the ring, rotor and aerodynamic spinning process of viscose, Tencel, modal and micromodal fibers. Using these yarns, one viscose Siro yarn and one cotton yarn, seven samples of plain double knit fabrics were knitted on a circular double bed knitting machine with a gauge of E17 and needle bed diameter of 8 inches (200 mm). The machine knitted with 8 knitting systems at a rotation speed of 60 rpm. The results of the study especially highlight significant differences in stretching properties of the finished and unfinished knitted fabrics caused by specific structures and properties of individual yarns.

knitted fabric, weft-knitted, double knit, plain, structure parameters, yarn, 20 tex, manufacturing procedures

This work has been fully supported by the Croatian Science Foundation under the project (IP-2016-06- 5278).