The Surface Roughness Measurement for Textiles Fabrics by a Non-Contact Method for Tactile Perception

The research for objectifying the handle of textile fabrics is a very important factor in the textile and garment manufacturing and retailing industries. Handle is influenced by mechanical properties of textile fabrics and the surface roughness. The KES-F system is standard objectified method among different measurement methods. But the measurement of surface roughness applied the KES-F which is contact method disturbs an accurate measurement for analysis of tactile perception. Hence we measure the surface roughness of textile fabrics without deformation by a non-contact method applied the laser displacement sensor with a resolution of 1 μm and a accuracy of 0.01% and high precisely controlled linear motor for translated at constant speed. Since the textile fabrics are woven and knitted with various colored yarn and its surface treated with chemical treatment to make luster, we analyze the effect of color and luster in order to reduce the optical errors. And the results of surface roughness of various textile fabrics compared with the surface characteristic values (MIU, MMD) measured by KES-F system. The data is controlled on computer and executed FFT by using MATLAB for obtain roughness, the mean values and mean deviation from thirty plain and twill woven fabrics for men’s suit in winter. We will present the comparison between the surface roughnesses of textile fabrics measured by a non-contact method with the subjective adjective tactile expression to understand the tactile perception.