THE CAUSE OF SLIVER IRREGULARITY IN GILLING.

The article discusses the findings of a study on the causes of sliver irregularity in wool-gilling. The study concluded that the gilling process involves two main different sources of disturbances, namely, the input irregularity, and the faller-bar action. A theoretical analysis has revealed that the resultant output irregularities are composed of two independent components corresponding to these two sources of disturbance. The study confirmed through a spectral analysis of the experimental data that the gilling process causes a considerable amount of additional irregularity to occur in the gilled sliver. Additional irregularity is mainly contributed by a periodic wave with a wavelength approximately equal to the pitch of the fallers times the front draft ratio.