engleski

Woven Fabric Roughness Conditioned by Weave

The woven fabric structure is defined by the construction parameters, of which the most influential are weave and thread density. In order to characterize the woven fabric surface in detail, it is necessary to perceive it on several levels (macro, meso, micro). At the meso level, the topographic properties of woven fabrics are observed, which are described by the parameters of surface roughness and waviness. Typical topography is expressed by periodic repetition of waves in the vertical and horizontal directions resulting from its structure. Roughness is defined by closely spaced irregularities while waviness is manifested in widely spaced irregularities on the fabric surface. Different methods (contact and non-contact) have been developed to characterize the fabric surface roughness. For this research, the contact method on the Fabric Touch Tester device was used. The aim of this research is to present a detailed investigation and explanation of the effects of weave types on the surface roughness of woven fabrics in the warp and weft direction. Both directions consist of the same raw material (PA6.6/CO - 50% Polyamide 6.6, 50% Cotton) and the same fineness (15.5x2 tex). Fabric specification is shown in Table 1. The root mean square (Figure 1) is the square root of the average of the square of the deviation of the profile from the mean line which represents the surface roughness with amplitude variations included. Figure 1 shows that the highest roughness has the fabric woven in plain weave while satin fabric has the lowest. This confirms the theory of the influence of thread flotation on the woven fabric surface roughness. In addition, in the case of twill fabrics, Twill 1/3 has a higher roughness due to full interlacement of every 4th thread.

surface roughness, woven fabric, weave, Fabric Touch Tester

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