Studies on Influence of Stitch Density and Stitch Type on Seam Properties of Garment Leathers

Despite studies indicating the differential use of stitch density with respect to textile apparel, there is little information on the effect of stitch type and stitch density (stitches/cm or spc) on the seam properties of leather clothing. An experimental investigation of the effect of two different types of stitches (i.e., chain stitch and lock stitch with variations in stitch density of 3, 4, 5, and 6 spc) has been reported. Lock stiches performed better than chain stiches with regards to seam strength, seam elongation, and seam efficiency. A stitch density of 5 spc was found to be optimal for sewing leathers. Further increases in stitch density damaged the fabric by cutting and weakening the fabrics.