Regression Analysis of the Effects of Yarn Counts, Stitch Lengths on Depth of Stripes of Different Single Jersey Fabrics

Fabric can be made attractive by means of ornamentation and designing. Stripe is one means by which attractive fabric can be produced which added extra values of that product. This research was to investigate the effects of yarn counts, Knit structures and Stitch Lengths on the depth of stripes. All the samples were made with 100% cotton dyed yarns. The work was done in three sections. In the first section, using a stitch length 2.8mm, three Single Jersey Plain structures were produced using different yarn counts which were 30 Ne, 28 Ne, and 26 Ne. In the second section, Single Jersey Plain, Single Lacoste, Polo Pique, and Double Lacoste structures were produced with 26 Ne yarn at stitch length 2.8mm. In the final section, four Single Jersey Plain structures were produced by varying stitch length 2.70 mm, 2.80 mm, 2.90 mm and 3.0 mm using the same yarn count which was 30 Ne. After conditioning, Depth of stripes (DOS) were measured, data were presented in tables and graphical representations were shown. It was found that little changes in DOS were observed with decreasing of yarn count in a dry relaxed state but remarkable changes in DOS were observed after washing and wet relaxation. DOS for 30 Ne, 28 Ne, and 26 Ne were found 13.25 mm, 13.5 mm and 14.2 mm respectively. In the second section, the highest depth of stripe was found in Single Jersey Plain structure and lowest in Double Lacoste structure. DOS of other structures lie in between them. Effects of stitch lengths were also studied here. Effects of four different stitch lengths were shown in Single Jersey Plain structures. DOS in a dry relaxed state for 2.70 mm, 2.80 mm, 2.90 mm and 3.00 mm were found 11.1 mm, 13.35 mm, 13.85 mm and 14.30 mm respectively. DOS in the wet relaxed state was reduced in all samples due to shrinkage. Furthermore, attempts were made to conduct linear regression analysis in order to find a suitable formula to predict the change of DOS.