Suitability of Sewing Thread on Different Types of Sheer Fabrics

The large consumption of sewing threads in the clothing industry indicates the importance for manufacturers to identify the correct supplies of sewing processes to prevent any major seam failures. This paper presents the results of the investigations made using different sizes of 100 % polyester threads on voile, chiffon, and organza fabrics. The samples with lockstitch seam were prepared in three different stitch lengths, which are 7 spi, 10 spi, and 13 spi. The seam slippage test was carried out to obtain the maximum tensile force on the different fabric types. The results revealed that different sizes of polyester threads influenced the maximum tensile force of the fabrics. The mechanical properties of the sewing threads, stitch length, structure, and compactness of the fabrics also affected the result of tensile force. It can be concluded that as the thread size increased, the tensile force also increased. This study suggests that sewing threads with thread size of 33 Tex and stitch length of 13 spi are suitable for chiffon fabric; thread size of 31 Tex is suitable to be used and sewn with 7 spi and 10 spi for voile fabric. Meanwhile, thread size of 31 Tex is suitable to be used with 7 spi on organza fabric.