Investigation of Water Permeability of Ultrasonic Seaming on PU Coated Fabrics

Technical textiles take an important place in textile and apparel sector. In technical textiles, ultrasonic seaming method besides conventional seaming methods is one of the alternative methods used in seaming processes of functional textiles. In this study, the effects of ultrasonic seaming method in which needle and thread usage is not needed on waterproofing property of PU coated fabrics in comparison with conventional seaming methods were investigated. Sewn fabrics obtained with different seaming parameters were exposed to washing process and the waterproofing properties of these fabrics were tested considering before and after washing processes. The results evaluated in terms of seam type, fabric type, ultrasonic seaming velocity and washing process were statistically analyzed. According to the test results, waterproofing properties of ultrasonically sewn fabrics are higher than that of conventionally sewn fabrics. The difference between waterproofing values of ultrasonically and conventionally sewn fabrics are found to be statistically significant. It is determined that waterproofing property of the fabrics are in relation with the other parameters