Surface Roughness Evaluation of Weft Knitted Fabric by Using a Textile Surface Tester

A Textile Surface Tester was used in this study to measure the surface roughness of weft knitted fabric. The aim of this work is to examine the influence of fabric parameters and test conditions on the sample's surface roughness. In this investigation, tests were carried out on single jersey knitted fabric for outwear. The measurement was carried out via an inductive sensor for displacement which produces signal in relation to the sample relives. We applied decomposition via the Fourier and the wavelet transforms to extract useful data from the produced signals signal. The surface roughness parameters were calculated according to the standard ISO 4287 (1997). Implications of the results on the influence of the stitch length and the yarn count on surface roughness are discussed.