Effects of Fabric Structure on Frictional Properties

Abstract

When the yarn sett of a woven fabric is systematically increased, there is also a systematic increase in the frictional resistance to motion, and it is greater for weft-over-weft motion than for warp-over-warp. The greater warp crimp producing a “knuckle effect” could be the explanation, although the diminishing spaces between the weft threads could also be a factor. In another case involving a series of pile-type woven fabrics, an increase in the height of fiber tufts produces an increase in the resistance to motion and also the amplitude of the stick-slip motion. A good linear relation exists between the number of peaks and number of cords. The size of cords and the degree of spacing between them may enhance interlocking and intermeshing of fiber pile.

Assessing friction in silk-like finished polyester fabrics

“…Similar studies examined the influence of fabric structure on surface frictional resistance (Zurek, Jankowiak & Frydrych, 1985), (Carr, Posey & Tincher, 1988), (Ajayi, 1992a) and found that Amonton's law does not hold in most of the textile materials examined, whereas Wilson's model relating frictional force to normal force and apparent contact area led to close correlation among data (Wilson, 1963).…”

“…The frictional force of the finished fabric was measured with a modified version of the Instron Tensile Tester (23,24) (Ajayi, 1992a),(Ajavi, 1992b) (see figure 4) …”

Brush model to predict the friction of hairy textile fabrics from indentation measurements

“…Several phenomenological studies [5,9,10] showed that the structure of textiles (kind of weave or knit) as well as their hairiness influence the friction of fabrics. So far, however, there is no theoretical model available for quantitative predictions.…”

A novel technique to measure stick‐slip in fabric

“…Increasing the speed of sliding will abruptly terminate the stick-slip at a certain characteristic velocity (Derjaguin et al, 1957). Stick-slip motion has now been successfully used by several researchers (Ajayi, 1992b;Ajayi et al, 1995;Hosseini Ravandi et al, 1994) in relating the frictional characteristics of fabric to the topographic structure of its surface. Ajayi (1992b) showed that there was a positive relationship between the yarn crown height and the peak to peak values of the slip traces, and that the number of peaks correlated well with the yarn density or number of cords.…”

“…Stick-slip motion has now been successfully used by several researchers (Ajayi, 1992b;Ajayi et al, 1995;Hosseini Ravandi et al, 1994) in relating the frictional characteristics of fabric to the topographic structure of its surface. Ajayi (1992b) showed that there was a positive relationship between the yarn crown height and the peak to peak values of the slip traces, and that the number of peaks correlated well with the yarn density or number of cords. Hosseini Ravandi et al (1994), however, explored the periodicity of stick-slip patterns of fabric against a perspex sled by using an autospectral density function.…”