engleski

Analysis of woven fabric at the place of the sewn seam

Key importance and the role of sewn seam in the woven fabric is presented. Fabric properties in the places joined with the sawn seam are highlighted on which garment durability, applicability, appearance and quality depend. Seam location is usually the weakest spot on the garment, especially when the great loads are present at these places. Mechanical properties of the sewn fabrics were investigated in different test conditions. The influence of the load on the sewn seam is analyzed in time intervals. Sample with seam have approximately 70% lower breaking properties (breaking force and elongation at break), than the sample without seam. By preloading the seam fabrics with 30, 50 and 70% of elongation at break, for a 3 hours period, the effect on mechanical properties were tested and differences in pre-stretching intensity were observed. By conducting such test, it is expected that the fabric experience further degradation and that breaking properties further reduce, but the exact opposite occurred (breaking properties, by increasing the preload, increase even more), due to various material properties (structural fabric properties, raw material characteristics, seam characteristics).

Sewn seam ; mechanical properties ; loading ; wool/polyester woven fabric

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