Mansouri Samar*, Chaabouni Yassin, Cheikhrouhou Morched
This research is an opportunity to highlight the influence of finishing products on sewing-thread’s behavior. Various treatments were applied on fabric with different concentrations (mercerizing, softening, Stiffening, Anti-Wrinkling treatment, Water repellent). The finishing processing was released in the finishing factory in the Industrial Company of Textile “SITEX”. The quantity of finishing product depends on that used in the company. After sewing, the needle thread was removed from fabrics then tensile properties (force and elongation at break) are determined. The mechanical parameters were compared to those of the seamless thread (before seaming operation). After sewing, the thread was solicited and was subject to frictions which destroy its mechanical properties. The results show a significant loss in mechanical properties values depending on finishing treatment. In that, decreases related to mercerizing treatment are different from those related to water repellent or softening treatment. Also the variation of force and elongation at break values change when varying products’ concentration used. For most finishing products, raising the quantity added inhibits the penetration of the sewing thread into treated fabric. Softening treatments, normally, ease thread’s moving in the textile fabric, but increasing softener’s concentration, can make it very difficult to pass into fabric tested. So, finishing product’s concentration is an important parameter that must be investigated.
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