Author(s)

HIDEAKI KATOGI

Abstract

Many companies have announced waterproof clothing, cover sheets, fishing wear and other products. Functionality of the constituent materials of waterproof products is extremely important for comfort. However, the manufacture of products using waterproof fabrics must be conducted using seam treatments. Therefore, this study examined seam method effects on strength properties of waterproof treated nylon fabrics for sustainable development goals. Fabric surfaces were treated using polyvinyl chloride (PVC) processing. Evaluation of waterproof fabric contact angles was conducted before seam tensile testing. The seam treatment was straight with embroidered seams. Seam tensile tests of PVCtreated nylon fabrics were conducted after those of straight and embroidered seams. Polyester yarn sewing thread was used. The environment temperature was room temperature. The crosshead speed was 100 mm/min. The following results were obtained. The contact angle on the surface of PVC-treated nylon fabric was about 86°. Load–displacement curves suggested that the fracture toughness of PVCtreated nylon fabric with an embroidered seam was much larger than that of PVC-treated nylon fabric with a straight seam. Their results implied that the fracture toughness of PVC-treated nylon fabric was affected mainly by the seam method.

Keywords

clothing, embroidered seam, fracture toughness, load–displacement curve, straight seam