Abstract
The relationship between the geometrical structures of plain-woven filament fabrics and the directional effect of fabric-on-fabric static friction has been investigated with the following results:
(1) Frictional force F per unit area for every relative direction of rubbing is related to pressure N by the relation F=kNn, where k and n are constants.
(2) The term “coefficient of the directional effect of fabric-on-fabric friction” is used here and given a quantitative significance by defining it as δ=(μff; -μww; )/(μff; +μww; ) where μff; an μww; are the friction coefficients of sliding, “filling-along-filling” and “warp-along-warp”. respectively. Their values δ, obtained from experimental results, show the same tendencies as those obtainable by cloth geometrical calculations.
(3) The structure of a high crown of warp or filling has marked influence upon the anisotropy of the friction of a given fabric.
