| Abstract [eng] |
One of the most widely used kinds of complex structure yarns are fancy yarns. Fancy yarns enable to obtain various, often distinctive, textile effects providing exclusivity to fabric. For these reasons, the majority of fancy yarns are used in the clothing industry and high fashion. However, these yarns are also used in the production of other textiles, in particular, in technical textiles. The aim of this work is to weave fabrics with fancy yarns in the weft, and to analyse the impact of the fatigue process on mechanical properties of fabrics. The object of research are 14 variants of fabrics with fancy yarns of different structure in the weft. Designed fabrics may be used in the manufacture of car seat upholstery. Fabrics were stressed in different fatigue cycles, i.e. 500 000 and 1 000 000 cycles. In addition, fabrics were stressed at the temperature of -25°C to maximize the stressing environment, and to mimic conditions in the use of fabric. The next stage of this work the mechanical properties of fabrics (breaking force, elongation and breaking work) were determined before and after fatigue with different number of cycles. Also, the impact of the fatigue process on mechanical properties of the analysed fabrics was evaluated. In addition, the impact of overfeed used during the manufacturer of fancy yarns to mechanical properties of fabrics of these yarns was determined. It was found in the study that the fatigue and the different number of cycles of fatigue affect mechanical properties of tested fabrics with fancy yarns in the weft. It was found that there is no correlation between overfeed used in the manufacture of fancy yarns, and mechanical properties of fabrics with these yarns. |
